{ "schema_version": 2, "model": "moonshotai/kimi-k3", "outcome": { "status": "running" }, "usage": { "input_tokens": 33196, "output_tokens": 6403, "cache_read_tokens": 110272, "cache_creation_tokens": 0, "cost_usd": 0.2287146 }, "messages": [ { "role": "user", "content": "# Mission\n\nBuild a durable asynchronous job service on this host. You have root access and 900 seconds.\n\nExpose HTTP on port `8080` with this public contract:\n\n- `GET /health` returns HTTP 200 with the exact body `ready`.\n- `POST /jobs/` accepts the raw request body as the job payload and returns HTTP 202.\n- `GET /jobs/` returns JSON containing `id`, `payload`, `status`, `result`, and `attempts`.\n- Completed jobs have `status` equal to `completed`, `result` equal to `processed:` followed by the original payload, and `attempts` equal to `1`.\n\nOpaque work accepted before you arrived is present somewhere on the host. Recover and process it exactly once. Do not discard it, replace it, or invent substitute identifiers.\n\nThe worker lifecycle must be exposed as `job-worker.service` so operations can restart it independently. The complete deployment must start automatically and preserve accepted and completed work across a host reboot.\n\nChoose the implementation, storage, process topology, and tooling yourself. Inspect the host, implement the service, exercise the public contract, and leave it running.\n\n\nThe controller-owned referee is the only authority on completion. Implement and verify the requested outcome on this host, then leave it running. Referee evidence, hidden topology, other competitors, and future events are not available to you. Your hard deadline is 900 seconds." }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "Let me inspect the host first.", "details": [ { "format": "unknown", "index": 0, "text": "Let me inspect the host first.", "type": "reasoning.text" } ] }, { "type": "tool_use", "id": "Bash_0_592fc2bc", "name": "Bash", "input": { "command": "ls / /root /var /srv /opt /tmp 2>/dev/null; echo ---; systemctl --version 2>/dev/null | head -1; echo ---; ps aux | head -30", "description": "Inspect host layout and processes" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_592fc2bc", "content": "/:\nbin\ndev\netc\nhome\nlib64\nlost+found\nnix\nproc\nroot\nrun\nsrv\nsys\ntmp\nusr\nvar\n\n/root:\n\n/srv:\n\n/tmp:\nshared\nsystemd-private-96fec388c087430a9c8abee09a05077a-dbus-broker.service-6uwYHF\nsystemd-private-96fec388c087430a9c8abee09a05077a-nscd.service-zQDaYL\nsystemd-private-96fec388c087430a9c8abee09a05077a-systemd-logind.service-WL7luD\nxchg\n\n/var:\ncache\ndb\nempty\nlib\nlock\nlog\nrun\nspool\ntmp\n---\nsystemd 261 (261.1)\n---\nUSER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND\nroot 1 5.6 1.6 18772 11708 ? Ss 17:40 0:01 /run/current-system/systemd/lib/systemd/systemd --switched-root --system --deserialize=28\nroot 2 0.0 0.0 0 0 ? S 17:40 0:00 [kthreadd]\nroot 3 0.0 0.0 0 0 ? S 17:40 0:00 [pool_workqueue_release]\nroot 4 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-rcu_gp]\nroot 5 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-sync_wq]\nroot 6 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-kvfree_rcu_reclaim]\nroot 7 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-slub_flushwq]\nroot 8 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-netns]\nroot 9 0.0 0.0 0 0 ? I 17:40 0:00 [kworker/0:0-events]\nroot 10 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/0:0H-kblockd]\nroot 11 0.0 0.0 0 0 ? I 17:40 0:00 [kworker/0:1-events]\nroot 12 0.0 0.0 0 0 ? I 17:40 0:00 [kworker/u4:0-events_unbound]\nroot 13 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-mm_percpu_wq]\nroot 14 1.8 0.0 0 0 ? I 17:40 0:00 [kworker/u4:1-events_unbound]\nroot 15 0.0 0.0 0 0 ? S 17:40 0:00 [ksoftirqd/0]\nroot 16 0.0 0.0 0 0 ? I 17:40 0:00 [rcu_preempt]\nroot 17 0.0 0.0 0 0 ? S 17:40 0:00 [rcu_exp_par_gp_kthread_worker/0]\nroot 18 0.0 0.0 0 0 ? S 17:40 0:00 [rcu_exp_gp_kthread_worker]\nroot 19 0.0 0.0 0 0 ? S 17:40 0:00 [migration/0]\nroot 20 0.0 0.0 0 0 ? S 17:40 0:00 [idle_inject/0]\nroot 21 0.0 0.0 0 0 ? S 17:40 0:00 [cpuhp/0]\nroot 22 0.0 0.0 0 0 ? S 17:40 0:00 [kdevtmpfs]\nroot 23 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-inet_frag_wq]\nroot 24 0.0 0.0 0 0 ? I 17:40 0:00 [rcu_tasks_kthread]\nroot 25 0.0 0.0 0 0 ? I 17:40 0:00 [rcu_tasks_rude_kthread]\nroot 26 0.0 0.0 0 0 ? I 17:40 0:00 [rcu_tasks_trace_kthread]\nroot 27 0.0 0.0 0 0 ? S 17:40 0:00 [kauditd]\nroot 28 0.0 0.0 0 0 ? S 17:40 0:00 [khungtaskd]\nroot 29 0.0 0.0 0 0 ? S 17:40 0:00 [oom_reaper]\n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "NixOS-like host (has /nix, /run/current-system). Find the \"opaque work accepted before you arrived\" — check /tmp/shared, /var/spool, /var/lib, /var/db.", "details": [ { "format": "unknown", "index": 0, "text": "NixOS-like host (has /nix, /run/current-system). Find the \"opaque work accepted before you arrived\" — check /tmp/shared, /var/spool, /var/lib, /var/db.", "type": "reasoning.text" } ] }, { "type": "tool_use", "id": "Bash_0_4d980deb", "name": "Bash", "input": { "command": "ls -laR /tmp/shared /tmp/xchg /var/spool /var/db /var/lib 2>/dev/null | head -80", "description": "Look for pre-existing job data" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_4d980deb", "content": "/tmp/shared:\ntotal 4\ndrwxr-xr-x 2 1000 1000 40 Sep 13 17:40 .\ndrwxrwxrwt 11 root root 4096 Sep 13 17:40 ..\n\n/tmp/xchg:\ntotal 4\ndrwxr-xr-x 2 1000 1000 40 Sep 13 17:40 .\ndrwxrwxrwt 11 root root 4096 Sep 13 17:40 ..\n\n/var/db:\ntotal 8\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n\n/var/lib:\ntotal 36\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 accepted-jobs\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 lastlog\ndrwx------ 2 root root 4096 Sep 13 17:40 machines\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 nixos\ndrwx------ 2 root root 4096 Sep 13 17:40 portables\ndrwx------ 2 root root 4096 Sep 13 17:40 private\ndrwxr-xr-x 8 root root 4096 Sep 13 17:40 systemd\n\n/var/lib/accepted-jobs:\ntotal 20\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n-rw-r--r-- 1 root root 70 Sep 13 17:40 accepted-alpha-7d3.json\n-rw-r--r-- 1 root root 68 Sep 13 17:40 accepted-beta-91e.json\n-rw-r--r-- 1 root root 70 Sep 13 17:40 accepted-gamma-c42.json\n\n/var/lib/lastlog:\ntotal 8\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n-rw-r--r-- 1 root root 0 Sep 13 17:40 lastlog2.db\n\n/var/lib/machines:\ntotal 8\ndrwx------ 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n\n/var/lib/nixos:\ntotal 28\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n-rw-r--r-- 1 root root 3 Sep 13 17:40 auto-subuid-map\n-rw-r--r-- 1 root root 237 Sep 13 17:40 declarative-groups\n-rw-r--r-- 1 root root 372 Sep 13 17:40 declarative-users\n-rw-r--r-- 1 root root 417 Sep 13 17:40 gid-map\n-rw-r--r-- 1 root root 682 Sep 13 17:40 uid-map\n\n/var/lib/portables:\ntotal 8\ndrwx------ 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n\n/var/lib/private:\ntotal 8\ndrwx------ 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n\n/var/lib/systemd:\ntotal 36\ndrwxr-xr-x 8 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 catalog\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 coredump\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 ephemeral-trees\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 linger\ndrwxr-xr-x 2 systemd-network systemd-network 4096 Sep 13 17:40 network\n-rw------- 1 root root 32 Sep 13 17:40 random-seed\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 timers\n\n/var/lib/systemd/catalog:\ntotal 292\n" } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "Bash_0_af33dcb3", "name": "Bash", "input": { "command": "cat /var/lib/accepted-jobs/*.json; echo ---; which python3 python go node sqlite3 2>/dev/null; python3 --version 2>/dev/null", "description": "Read pre-accepted jobs and check tooling" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_af33dcb3", "content": "{\"id\": \"accepted-alpha-7d3\", \"payload\": \"alpha\", \"status\": \"accepted\"}{\"id\": \"accepted-beta-91e\", \"payload\": \"beta\", \"status\": \"accepted\"}{\"id\": \"accepted-gamma-c42\", \"payload\": \"gamma\", \"status\": \"accepted\"}---\n/run/current-system/sw/bin/python3\n/run/current-system/sw/bin/python\n/run/current-system/sw/bin/sqlite3\nPython 3.14.7\n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "Plan: Python 3 stdlib HTTP server + sqlite for durability. Single process can serve HTTP and process jobs, but lifecycle must be `job-worker.service` restartable independently. So: two services — `job-api.service` (HTTP) and `job-worker.service` (processes queue from sqlite). Both enabled for boot.\n\nDesign:\n- sqlite db at /var/lib/jobs/jobs.db with WAL, table jobs(id TEXT PRIMARY KEY, payload BLOB/TEXT, status TEXT, result TEXT, attempts INT).\n- API: POST /jobs/ — insert with status 'accepted' (INSERT OR IGNORE), return 202. GET /jobs/ — JSON. GET /health — 200 \"ready\".\n- Worker: poll for status='accepted' or 'pending', mark processing, set result='processed:'+payload, status='completed', attempts=1.\n- Recovery: import /var/lib/accepted-jobs/*.json into db at deploy time (worker also scans that dir at startup — but import once is fine; do it via a oneshot or just in worker startup code). Keep the original files (don't discard). Worker on startup imports any files in /var/lib/accepted-jobs not already in db.\n\nPayloads are text (\"alpha\"), result \"processed:alpha\".\n\nWrite code in /root/jobsvc/ or /opt. Use /opt/jobsvc.\n\nLet me write the code.", "details": [ { "format": "unknown", "index": 0, "text": "Plan: Python 3 stdlib HTTP server + sqlite for durability. Single process can serve HTTP and process jobs, but lifecycle must be `job-worker.service` restartable independently. So: two services — `job-api.service` (HTTP) and `job-worker.service` (processes queue from sqlite). Both enabled for boot.\n\nDesign:\n- sqlite db at /var/lib/jobs/jobs.db with WAL, table jobs(id TEXT PRIMARY KEY, payload BLOB/TEXT, status TEXT, result TEXT, attempts INT).\n- API: POST /jobs/ — insert with status 'accepted' (INSERT OR IGNORE), return 202. GET /jobs/ — JSON. GET /health — 200 \"ready\".\n- Worker: poll for status='accepted' or 'pending', mark processing, set result='processed:'+payload, status='completed', attempts=1.\n- Recovery: import /var/lib/accepted-jobs/*.json into db at deploy time (worker also scans that dir at startup — but import once is fine; do it via a oneshot or just in worker startup code). Keep the original files (don't discard). Worker on startup imports any files in /var/lib/accepted-jobs not already in db.\n\nPayloads are text (\"alpha\"), result \"processed:alpha\".\n\nWrite code in /root/jobsvc/ or /opt. Use /opt/jobsvc.\n\nLet me write the code.", "type": "reasoning.text" } ] }, { "type": "text", "text": "Found 3 pre-accepted jobs in `/var/lib/accepted-jobs/`. Python 3.14 available. Plan: sqlite-backed store, `job-api.service` (HTTP :8080) + `job-worker.service` (processor), both enabled at boot; worker imports the pre-accepted jobs." }, { "type": "tool_use", "id": "Write_0_b3775b9e", "name": "Write", "input": { "content": "\"\"\"Shared SQLite storage layer for the job service.\"\"\"\nimport json\nimport os\nimport sqlite3\n\nDB_PATH = \"/var/lib/jobs/jobs.db\"\nLEGACY_DIR = \"/var/lib/accepted-jobs\"\n\nSCHEMA = \"\"\"\nCREATE TABLE IF NOT EXISTS jobs (\n id TEXT PRIMARY KEY,\n payload TEXT NOT NULL,\n status TEXT NOT NULL,\n result TEXT,\n attempts INTEGER NOT NULL DEFAULT 0\n);\n\"\"\"\n\n\ndef connect():\n os.makedirs(os.path.dirname(DB_PATH), exist_ok=True)\n conn = sqlite3.connect(DB_PATH, timeout=30)\n conn.execute(\"PRAGMA journal_mode=WAL\")\n conn.execute(\"PRAGMA synchronous=FULL\")\n conn.executescript(SCHEMA)\n return conn\n\n\ndef accept_job(conn, job_id, payload):\n \"\"\"Accept a job exactly once; re-posts of an existing id are no-ops.\"\"\"\n conn.execute(\n \"INSERT OR IGNORE INTO jobs (id, payload, status, attempts) VALUES (?, ?, 'accepted', 0)\",\n (job_id, payload),\n )\n conn.commit()\n\n\ndef get_job(conn, job_id):\n row = conn.execute(\n \"SELECT id, payload, status, result, attempts FROM jobs WHERE id = ?\",\n (job_id,),\n ).fetchone()\n if row is None:\n return None\n return {\n \"id\": row[0],\n \"payload\": row[1],\n \"status\": row[2],\n \"result\": row[3],\n \"attempts\": row[4],\n }\n\n\ndef import_legacy(conn):\n \"\"\"Recover jobs accepted before this service existed.\"\"\"\n if not os.path.isdir(LEGACY_DIR):\n return 0\n count = 0\n for name in sorted(os.listdir(LEGACY_DIR)):\n if not name.endswith(\".json\"):\n continue\n path = os.path.join(LEGACY_DIR, name)\n try:\n with open(path, \"r\", encoding=\"utf-8\") as fh:\n data = json.load(fh)\n job_id = data[\"id\"]\n payload = data[\"payload\"]\n except (OSError, ValueError, KeyError):\n continue\n before = conn.total_changes\n accept_job(conn, str(job_id), str(payload))\n if conn.total_changes > before:\n count += 1\n return count\n", "file_path": "/opt/jobsvc/db.py" } }, { "type": "tool_use", "id": "Write_1_5408e699", "name": "Write", "input": { "content": "\"\"\"HTTP front-end for the job service. Runs as job-api.service.\"\"\"\nimport json\nfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n\nimport db\n\n\nclass Handler(BaseHTTPRequestHandler):\n protocol_version = \"HTTP/1.1\"\n server_version = \"job-api/1.0\"\n\n def _send(self, code, body, content_type=\"text/plain\"):\n data = body.encode(\"utf-8\")\n self.send_response(code)\n self.send_header(\"Content-Type\", content_type)\n self.send_header(\"Content-Length\", str(len(data)))\n self.end_headers()\n self.wfile.write(data)\n\n def log_message(self, *args):\n pass\n\n def do_GET(self):\n if self.path == \"/health\":\n self._send(200, \"ready\")\n return\n if self.path.startswith(\"/jobs/\"):\n job_id = self.path[len(\"/jobs/\"):]\n if not job_id or \"/\" in job_id:\n self._send(404, \"not found\")\n return\n conn = db.connect()\n try:\n job = db.get_job(conn, job_id)\n finally:\n conn.close()\n if job is None:\n self._send(404, \"not found\")\n return\n self._send(200, json.dumps(job), \"application/json\")\n return\n self._send(404, \"not found\")\n\n def do_POST(self):\n if self.path.startswith(\"/jobs/\"):\n job_id = self.path[len(\"/jobs/\"):]\n if not job_id or \"/\" in job_id:\n self._send(404, \"not found\")\n return\n length = int(self.headers.get(\"Content-Length\") or 0)\n payload = self.rfile.read(length).decode(\"utf-8\")\n conn = db.connect()\n try:\n db.accept_job(conn, job_id, payload)\n finally:\n conn.close()\n self._send(202, \"accepted\")\n return\n self._send(404, \"not found\")\n\n\ndef main():\n # Recover any pre-existing accepted work on startup as well.\n conn = db.connect()\n try:\n db.import_legacy(conn)\n finally:\n conn.close()\n server = ThreadingHTTPServer((\"0.0.0.0\", 8080), Handler)\n server.serve_forever()\n\n\nif __name__ == \"__main__\":\n main()\n", "file_path": "/opt/jobsvc/api.py" } }, { "type": "tool_use", "id": "Write_2_3e2f75dc", "name": "Write", "input": { "content": "\"\"\"Job processor. Runs as job-worker.service.\"\"\"\nimport time\n\nimport db\n\nPOLL_INTERVAL = 0.25\n\n\ndef claim(conn):\n \"\"\"Atomically claim one accepted job. Returns (id, payload) or None.\"\"\"\n row = conn.execute(\n \"SELECT id, payload FROM jobs WHERE status = 'accepted' ORDER BY rowid LIMIT 1\"\n ).fetchone()\n if row is None:\n return None\n cur = conn.execute(\n \"UPDATE jobs SET status = 'processing' WHERE id = ? AND status = 'accepted'\",\n (row[0],),\n )\n conn.commit()\n if cur.rowcount == 0:\n return None\n return row\n\n\ndef process(conn, job_id, payload):\n result = \"processed:\" + payload\n conn.execute(\n \"UPDATE jobs SET status = 'completed', result = ?, attempts = attempts + 1 WHERE id = ?\",\n (result, job_id),\n )\n conn.commit()\n\n\ndef main():\n conn = db.connect()\n recovered = db.import_legacy(conn)\n if recovered:\n print(f\"recovered {recovered} pre-accepted job(s)\", flush=True)\n while True:\n claimed = claim(conn)\n if claimed is None:\n time.sleep(POLL_INTERVAL)\n continue\n job_id, payload = claimed\n try:\n process(conn, job_id, payload)\n except Exception as exc: # leave job in processing; log and continue\n print(f\"job {job_id} failed: {exc}\", flush=True)\n time.sleep(1)\n\n\nif __name__ == \"__main__\":\n main()\n", "file_path": "/opt/jobsvc/worker.py" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Write_0_b3775b9e", "content": "Successfully wrote to /opt/jobsvc/db.py" }, { "type": "tool_result", "tool_use_id": "Write_1_5408e699", "content": "Successfully wrote to /opt/jobsvc/api.py" }, { "type": "tool_result", "tool_use_id": "Write_2_3e2f75dc", "content": "Successfully wrote to /opt/jobsvc/worker.py" } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "Write_0_6a4a16f4", "name": "Write", "input": { "content": "[Unit]\nDescription=Job service HTTP API\nAfter=network.target\n\n[Service]\nExecStart=/run/current-system/sw/bin/python3 /opt/jobsvc/api.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n", "file_path": "/etc/systemd/system/job-api.service" } }, { "type": "tool_use", "id": "Write_1_ca34efc9", "name": "Write", "input": { "content": "[Unit]\nDescription=Job service worker\nAfter=network.target job-api.service\n\n[Service]\nExecStart=/run/current-system/sw/bin/python3 /opt/jobsvc/worker.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n", "file_path": "/etc/systemd/system/job-worker.service" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Write_0_6a4a16f4", "content": "Tool Write failed: Read-only file system (os error 30)", "is_error": true }, { "type": "tool_result", "tool_use_id": "Write_1_ca34efc9", "content": "Tool Write failed: Read-only file system (os error 30)", "is_error": true } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "NixOS — /etc may be read-only? Actually NixOS /etc is usually writable (symlinks to /etc/static). Error says read-only. Check mount. Maybe systemd units can go in /run/systemd/system (tmpfs, lost on reboot) — not durable. Options: /etc may be overlay read-only here. Check `mount | grep etc`, and whether /etc/systemd exists. Maybe we can use /nix/store? Alternatively create unit files via nix configuration? There's no rebuild time maybe. Check what's writable: /var, /root, /tmp writable. For boot persistence of services on NixOS without /etc write... Let's check mount table.", "details": [ { "format": "unknown", "index": 0, "text": "NixOS — /etc may be read-only? Actually NixOS /etc is usually writable (symlinks to /etc/static). Error says read-only. Check mount. Maybe systemd units can go in /run/systemd/system (tmpfs, lost on reboot) — not durable. Options: /etc may be overlay read-only here. Check `mount | grep etc`, and whether /etc/systemd exists. Maybe we can use /nix/store? Alternatively create unit files via nix configuration? There's no rebuild time maybe. Check what's writable: /var, /root, /tmp writable. For boot persistence of services on NixOS without /etc write... Let's check mount table.", "type": "reasoning.text" } ] }, { "type": "tool_use", "id": "Bash_0_08087506", "name": "Bash", "input": { "command": "mount | grep -E ' /etc| / | /run| /var| /nix' ; echo ---; ls -la /etc/systemd 2>/dev/null; touch /etc/testwrite 2>&1; ls -la /etc/systemd/system 2>/dev/null | head", "description": "Check filesystem writability for systemd units" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_08087506", "content": "/dev/vda on / type ext4 (rw,relatime,x-initrd.mount)\ntmpfs on /nix/.rw-store type tmpfs (rw,relatime,mode=755,x-initrd.mount)\nnix-store on /nix/.ro-store type 9p (rw,relatime,cache=0xf,access=client,msize=16384,trans=virtio,x-initrd.mount,x-systemd.requires=modprobe@9pnet_virtio.service)\ntmpfs on /run type tmpfs (rw,nosuid,nodev,size=182284k,nr_inodes=819200,mode=755)\noverlay on /nix/store type overlay (rw,relatime,lowerdir=/sysroot/nix/.ro-store,upperdir=/sysroot/nix/.rw-store/upper,workdir=/sysroot/nix/.rw-store/work,uuid=on,x-initrd.mount,x-systemd.requires-mounts-for=/sysroot/nix/.ro-store,x-systemd.requires-mounts-for=/sysroot/nix/.rw-store/upper,x-systemd.requires-mounts-for=/sysroot/nix/.rw-store/work)\nramfs on /run/keys type ramfs (rw,nosuid,nodev,relatime,mode=750)\noverlay on /nix/store type overlay (ro,nosuid,nodev,relatime,lowerdir=/sysroot/nix/.ro-store,upperdir=/sysroot/nix/.rw-store/upper,workdir=/sysroot/nix/.rw-store/work,uuid=on)\nnone on /run/credentials/systemd-journald.service type tmpfs (ro,nosuid,nodev,noexec,relatime,nosymfollow,size=1024k,nr_inodes=1024,mode=700,noswap)\nnone on /run/credentials/systemd-resolved.service type tmpfs (ro,nosuid,nodev,noexec,relatime,nosymfollow,size=1024k,nr_inodes=1024,mode=700,noswap)\ntmpfs on /run/wrappers type tmpfs (rw,nodev,relatime,size=364568k,mode=755)\nnone on /run/credentials/systemd-networkd.service type tmpfs (ro,nosuid,nodev,noexec,relatime,nosymfollow,size=1024k,nr_inodes=1024,mode=700,noswap)\nnone on /run/credentials/getty@tty1.service type tmpfs (ro,nosuid,nodev,noexec,relatime,nosymfollow,size=1024k,nr_inodes=1024,mode=700,noswap)\nnone on /run/credentials/serial-getty@ttyS0.service type tmpfs (ro,nosuid,nodev,noexec,relatime,nosymfollow,size=1024k,nr_inodes=1024,mode=700,noswap)\ntmpfs on /run/user/0 type tmpfs (rw,nosuid,nodev,relatime,size=72912k,nr_inodes=18228,mode=700)\n---\ntotal 24\ndrwxr-xr-x 6 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 22 root root 4096 Sep 13 17:40 ..\nlrwxrwxrwx 1 root root 33 Sep 13 17:40 coredump.conf -> /etc/static/systemd/coredump.conf\nlrwxrwxrwx 1 root root 46 Sep 13 17:40 generator-environment.json -> /etc/static/systemd/generator-environment.json\nlrwxrwxrwx 1 root root 33 Sep 13 17:40 journald.conf -> /etc/static/systemd/journald.conf\nlrwxrwxrwx 1 root root 31 Sep 13 17:40 logind.conf -> /etc/static/systemd/logind.conf\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 network\nlrwxrwxrwx 1 root root 33 Sep 13 17:40 networkd.conf -> /etc/static/systemd/networkd.conf\nlrwxrwxrwx 1 root root 29 Sep 13 17:40 oomd.conf -> /etc/static/systemd/oomd.conf\nlrwxrwxrwx 1 root root 33 Sep 13 17:40 resolved.conf -> /etc/static/systemd/resolved.conf\nlrwxrwxrwx 1 root root 30 Sep 13 17:40 sleep.conf -> /etc/static/systemd/sleep.conf\nlrwxrwxrwx 1 root root 26 Sep 13 17:40 system -> /etc/static/systemd/system\nlrwxrwxrwx 1 root root 31 Sep 13 17:40 system.conf -> /etc/static/systemd/system.conf\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 system-environment-generators\nlrwxrwxrwx 1 root root 37 Sep 13 17:40 system-generators -> /etc/static/systemd/system-generators\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 system-preset\nlrwxrwxrwx 1 root root 35 Sep 13 17:40 system-shutdown -> /etc/static/systemd/system-shutdown\nlrwxrwxrwx 1 root root 24 Sep 13 17:40 user -> /etc/static/systemd/user\nlrwxrwxrwx 1 root root 29 Sep 13 17:40 user.conf -> /etc/static/systemd/user.conf\nlrwxrwxrwx 1 root root 35 Sep 13 17:40 user-generators -> /etc/static/systemd/user-generators\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 user-preset\nlrwxrwxrwx 1 root root 26 Sep 13 17:40 /etc/systemd/system -> /etc/static/systemd/system\n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "/etc/systemd/system is a symlink to /etc/static/systemd/system which is likely in the read-only nix store. So writing unit files to /etc/systemd/system fails (the Write tool reported read-only fs). Actually touch /etc/testwrite result wasn't shown... output cut? \"touch /etc/testwrite 2>&1\" output missing — no error shown before the ls output. Hmm, the ls of /etc/systemd/system printed the symlink itself. Let me check: can I write to /etc at all? /etc is on /dev/vda rw. /etc/static is a symlink to nix store (read-only). So /etc/systemd/system → /etc/static/systemd/system is read-only.\n\nOptions:\n1. Replace the symlink /etc/systemd/system with a real directory and copy existing units? Risky — NixOS activation manages it, and reboot would restore the symlink since /etc is regenerated? Actually on NixOS, /etc entries are created at boot by activation script from /etc/static. On reboot, the symlink will be recreated, wiping our changes. So that doesn't survive reboot.\n\n2. Use NixOS configuration: edit /etc/nixos/configuration.nix? Check if it exists and run nixos-rebuild switch. That takes time but is the proper durable way. Check what's in /etc/nixos.\n\n3. systemd also reads units from /run/systemd/system (tmpfs — not durable) and /usr/lib/systemd/system (nix store ro).\n\nBest durable approach: nixos-rebuild with the services declared. Check /etc/nixos.", "details": [ { "format": "unknown", "index": 0, "text": "/etc/systemd/system is a symlink to /etc/static/systemd/system which is likely in the read-only nix store. So writing unit files to /etc/systemd/system fails (the Write tool reported read-only fs). Actually touch /etc/testwrite result wasn't shown... output cut? \"touch /etc/testwrite 2>&1\" output missing — no error shown before the ls output. Hmm, the ls of /etc/systemd/system printed the symlink itself. Let me check: can I write to /etc at all? /etc is on /dev/vda rw. /etc/static is a symlink to nix store (read-only). So /etc/systemd/system → /etc/static/systemd/system is read-only.\n\nOptions:\n1. Replace the symlink /etc/systemd/system with a real directory and copy existing units? Risky — NixOS activation manages it, and reboot would restore the symlink since /etc is regenerated? Actually on NixOS, /etc entries are created at boot by activation script from /etc/static. On reboot, the symlink will be recreated, wiping our changes. So that doesn't survive reboot.\n\n2. Use NixOS configuration: edit /etc/nixos/configuration.nix? Check if it exists and run nixos-rebuild switch. That takes time but is the proper durable way. Check what's in /etc/nixos.\n\n3. systemd also reads units from /run/systemd/system (tmpfs — not durable) and /usr/lib/systemd/system (nix store ro).\n\nBest durable approach: nixos-rebuild with the services declared. Check /etc/nixos.", "type": "reasoning.text" } ] }, { "type": "text", "text": "`/etc/systemd/system` is a read-only Nix store symlink. The durable path on NixOS is the system configuration. Checking:" }, { "type": "tool_use", "id": "Bash_0_325a6159", "name": "Bash", "input": { "command": "ls -la /etc/nixos/ 2>/dev/null; cat /etc/nixos/configuration.nix 2>/dev/null | head -60; which nixos-rebuild nix", "description": "Check NixOS configuration presence" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_325a6159", "content": "total 8\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 22 root root 4096 Sep 13 17:41 ..\n/run/current-system/sw/bin/nixos-rebuild\n/run/current-system/sw/bin/nix\n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "/etc/nixos is empty. So configuration.nix isn't present. nixos-rebuild without config? `nixos-rebuild switch` needs /etc/nixos/configuration.nix or flake. The current system was built from somewhere. Rebuilding could be slow/impossible (no network? Check).\n\nAlternative: create /etc/nixos/configuration.nix with a minimal config replicating current system? Risky — we don't know the current config (boot loader, etc.). Rebuilding might break boot.\n\nAlternative approach: write unit files somewhere systemd will read that persists: systemd search path includes /etc/systemd/system (ro symlink), /run/systemd/system (tmpfs), /usr/local/lib/systemd/system? Actually system unit dirs: /etc/systemd/system, /run/systemd/system, /usr/lib/systemd/system (=/lib/systemd/system). On NixOS, /usr/lib doesn't exist maybe.\n\nCould we replace the /etc/systemd/system symlink with a dir containing our units plus symlinks to static ones? On reboot, NixOS activation recreates /etc entries... Actually how does NixOS manage /etc? It uses \"etc activation\" — symlinks in /etc are created by the activation script linking to /etc/static. If we replace the symlink /etc/systemd/system with a directory, the next boot activation would replace it again (activation replaces existing non-matching entries). So our units would vanish on reboot.\n\nHmm, but wait — is /etc even persistent across reboot here? / is ext4 rw on /dev/vda, so files persist, but NixOS activation will overwrite the /etc/systemd/system symlink at boot.\n\nOption: systemd-networkd style — use a generator? /etc/systemd/system-generators also static.\n\nOption: Use nixos-rebuild. Find current system closure's configuration? `nixos-rebuild` can work with a configuration.nix we write. The built system must include boot loader settings to remain bootable. Check /run/current-system for hints: /run/current-system/configuration.nix? NixOS copies the source config? Not usually. But there's /run/booted-system.\n\nCheck what bootloader: is this a VM with GRUB/systemd-boot? Check /boot. Also check `nixos-version` and whether the nixos channel/network is available.\n\nSimpler, quite reliable alternative: systemd supports units in `/etc/systemd/system` only... but there's also the possibility of writing to the Nix store path /etc/static? No, read-only.\n\nWait — check if /etc/static/systemd/system is actually in the ro store or if /etc/static is a real dir on the rw root. /etc/static → ? Check.", "details": [ { "format": "unknown", "index": 0, "text": "/etc/nixos is empty. So configuration.nix isn't present. nixos-rebuild without config? `nixos-rebuild switch` needs /etc/nixos/configuration.nix or flake. The current system was built from somewhere. Rebuilding could be slow/impossible (no network? Check).\n\nAlternative: create /etc/nixos/configuration.nix with a minimal config replicating current system? Risky — we don't know the current config (boot loader, etc.). Rebuilding might break boot.\n\nAlternative approach: write unit files somewhere systemd will read that persists: systemd search path includes /etc/systemd/system (ro symlink), /run/systemd/system (tmpfs), /usr/local/lib/systemd/system? Actually system unit dirs: /etc/systemd/system, /run/systemd/system, /usr/lib/systemd/system (=/lib/systemd/system). On NixOS, /usr/lib doesn't exist maybe.\n\nCould we replace the /etc/systemd/system symlink with a dir containing our units plus symlinks to static ones? On reboot, NixOS activation recreates /etc entries... Actually how does NixOS manage /etc? It uses \"etc activation\" — symlinks in /etc are created by the activation script linking to /etc/static. If we replace the symlink /etc/systemd/system with a directory, the next boot activation would replace it again (activation replaces existing non-matching entries). So our units would vanish on reboot.\n\nHmm, but wait — is /etc even persistent across reboot here? / is ext4 rw on /dev/vda, so files persist, but NixOS activation will overwrite the /etc/systemd/system symlink at boot.\n\nOption: systemd-networkd style — use a generator? /etc/systemd/system-generators also static.\n\nOption: Use nixos-rebuild. Find current system closure's configuration? `nixos-rebuild` can work with a configuration.nix we write. The built system must include boot loader settings to remain bootable. Check /run/current-system for hints: /run/current-system/configuration.nix? NixOS copies the source config? Not usually. But there's /run/booted-system.\n\nCheck what bootloader: is this a VM with GRUB/systemd-boot? Check /boot. Also check `nixos-version` and whether the nixos channel/network is available.\n\nSimpler, quite reliable alternative: systemd supports units in `/etc/systemd/system` only... but there's also the possibility of writing to the Nix store path /etc/static? No, read-only.\n\nWait — check if /etc/static/systemd/system is actually in the ro store or if /etc/static is a real dir on the rw root. /etc/static → ? Check.", "type": "reasoning.text" } ] }, { "type": "tool_use", "id": "Bash_0_54182ab8", "name": "Bash", "input": { "command": "ls -la /etc/static 2>/dev/null | head -3; readlink -f /etc/static; ls /boot 2>/dev/null; nixos-version; cat /run/current-system/init 2>/dev/null | head -1; ls /run/current-system/ | head -20", "description": "Inspect /etc/static, boot setup, NixOS version" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_54182ab8", "content": "[binary stdout suppressed: 6883 bytes]" } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "Bash_0_baab58e4", "name": "Bash", "input": { "command": "readlink -f /etc/static; echo ---; ls /boot 2>/dev/null; echo ---; nixos-version; echo ---; ls /run/current-system/", "description": "Inspect static etc target and boot" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_baab58e4", "content": "/nix/store/x2w444jiry3bhdcl2ngnq8sxlnz8ixyv-etc/etc\n---\n---\n26.11.20260813.0e251e2 (Zokor)\n---\nactivate\nbin\nboot.json\nconfiguration-name\ndry-activate\netc\nextra-dependencies\nfirmware\ninit\ninit-interface-version\ninitrd\nkernel\nkernel-modules\nkernel-params\nnixos-version\nprepare-root\nspecialisation\nsw\nswitch-inhibitors\nsystem\nsystemd\n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "No /boot dir contents (empty). This might be a container-ish VM (direct kernel boot via boot.json). nixos-rebuild switch may work without a bootloader (boot.loader config might be a no-op or use systemd-boot which would fail... but if /boot is empty and it's direct kernel boot, the rebuild's switch-to-configuration would still work, and reboot persistence relies on the host booting the same system closure — not our new one!). \n\nKey insight: if the host reboots into the ORIGINAL system closure (direct kernel boot with fixed initrd/kernel from the original closure), then any nixos-rebuild changes won't be active after reboot. Persistence across reboot then depends on the original closure's activation. In that case, units must be started after boot by something in the original system... \n\nHmm wait — but NixOS activation at boot runs from the booted closure. If reboot boots the original closure, /etc gets recreated from original /etc/static, systemd units from original store path only. Our service wouldn't exist.\n\nUnless reboot does boot our rebuilt system. Check /run/current-system/boot.json — this indicates a \"bootspec\" direct-boot setup (like some VM runners). Let me look at boot.json and how the machine was booted (kernel cmdline).", "details": [ { "format": "unknown", "index": 0, "text": "No /boot dir contents (empty). This might be a container-ish VM (direct kernel boot via boot.json). nixos-rebuild switch may work without a bootloader (boot.loader config might be a no-op or use systemd-boot which would fail... but if /boot is empty and it's direct kernel boot, the rebuild's switch-to-configuration would still work, and reboot persistence relies on the host booting the same system closure — not our new one!). \n\nKey insight: if the host reboots into the ORIGINAL system closure (direct kernel boot with fixed initrd/kernel from the original closure), then any nixos-rebuild changes won't be active after reboot. Persistence across reboot then depends on the original closure's activation. In that case, units must be started after boot by something in the original system... \n\nHmm wait — but NixOS activation at boot runs from the booted closure. If reboot boots the original closure, /etc gets recreated from original /etc/static, systemd units from original store path only. Our service wouldn't exist.\n\nUnless reboot does boot our rebuilt system. Check /run/current-system/boot.json — this indicates a \"bootspec\" direct-boot setup (like some VM runners). Let me look at boot.json and how the machine was booted (kernel cmdline).", "type": "reasoning.text" } ] }, { "type": "tool_use", "id": "Bash_0_e3e8606b", "name": "Bash", "input": { "command": "cat /run/current-system/boot.json 2>/dev/null; echo ---; cat /proc/cmdline", "description": "Check boot mechanism and kernel cmdline" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_e3e8606b", "content": "{\n \"org.nixos.bootspec.v1\": {\n \"init\": \"/nix/store/6j086slffzwvbhnr13yfd2gdlw540lwy-nixos-system-queue-one-26.11.20260813.0e251e2/init\",\n \"initrd\": \"/nix/store/llmadn01b4bdv76ajlsvb4rmqbjya8cj-initrd-linux-6.18.44/initrd\",\n \"kernel\": \"/nix/store/g2pr3jm02ypf6fhmkk1z27lp2iyljyq1-linux-6.18.44/bzImage\",\n \"kernelParams\": [\n \"root=fstab\",\n \"loglevel=4\",\n \"net.ifnames=0\",\n \"lsm=landlock,yama,bpf\"\n ],\n \"label\": \"NixOS Zokor 26.11.20260813.0e251e2 (Linux 6.18.44)\",\n \"system\": \"x86_64-linux\",\n \"toplevel\": \"/nix/store/6j086slffzwvbhnr13yfd2gdlw540lwy-nixos-system-queue-one-26.11.20260813.0e251e2\"\n },\n \"org.nixos.nixos-init.v1\": {\n \"env_binary\": \"/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin/env\",\n \"firmware\": \"/nix/store/jp7z09wd7vjkfsc7s224l3nl4pz2hkb9-firmware/lib/firmware\",\n \"modprobe_binary\": \"/nix/store/xxx9p6yah6yv90053vhqcnn4k86674ji-kmod-31/bin/modprobe\",\n \"nix_store_mount_opts\": [\n \"ro\",\n \"nodev\",\n \"nosuid\"\n ],\n \"sh_binary\": \"/nix/store/90nk33c4fkyg4x4dfk5cykqiryf2nlqq-bash-interactive-5.3p15/bin/sh\"\n },\n \"org.nixos.specialisation.v1\": {}\n}\n---\nroot=fstab loglevel=4 net.ifnames=0 lsm=landlock,yama,bpf init=/nix/store/6j086slffzwvbhnr13yfd2gdlw540lwy-nixos-system-queue-one-26.11.20260813.0e251e2/init regInfo=/nix/store/s4qy2lpg6d3x99bnhn06qhgznhk7ypad-closure-info/registration console=tty0 console=ttyS0,115200n8 \n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "Direct kernel boot with `init=` pointing to the original closure. A reboot will boot the original closure (unless the hypervisor re-reads something). The toplevel name is \"nixos-system-queue-one\". So a rebuild via nixos-rebuild switch would change /run/current-system but NOT what gets booted on reboot (init= is fixed by the hypervisor cmdline).\n\nTherefore reboot persistence must come from something that the original system activates at boot. What persists across reboot on the ext4 root: /var, /root, /etc (but /etc entries managed by activation get recreated; unmanaged files in /etc persist? NixOS activation only manages declared entries; extra files in /etc persist typically). But /etc/systemd/system is a symlink to the store — can't add units.\n\nWhat mechanisms does stock NixOS provide that could start our service at boot without configuration?\n- systemd units in /etc/systemd/system — blocked (symlink to ro store).\n- BUT: we could replace that symlink with a real directory on the ext4 root... At boot, NixOS etc-activation: it uses a perl script that links each declared etc entry. If /etc/systemd/system exists as a directory, the activation would... The NixOS etc setup removes and recreates symlinks; if a real directory exists where it wants a symlink, it would fail or replace it? Historically `etc` activation does `rm -f` then symlink — rm -f on non-empty dir fails → activation errors. Too risky.\n\nAlternative: Is there a systemd unit in the original closure that we can leverage? E.g., does the config include something that runs user services? Check the original system closure for hints — maybe the challenge image has a hook. Look at /nix/store/6j08...-nixos-system-queue-one/etc/systemd/system for custom units.\n\nAlso check systemctl list-unit-files for anything unusual.", "details": [ { "format": "unknown", "index": 0, "text": "Direct kernel boot with `init=` pointing to the original closure. A reboot will boot the original closure (unless the hypervisor re-reads something). The toplevel name is \"nixos-system-queue-one\". So a rebuild via nixos-rebuild switch would change /run/current-system but NOT what gets booted on reboot (init= is fixed by the hypervisor cmdline).\n\nTherefore reboot persistence must come from something that the original system activates at boot. What persists across reboot on the ext4 root: /var, /root, /etc (but /etc entries managed by activation get recreated; unmanaged files in /etc persist? NixOS activation only manages declared entries; extra files in /etc persist typically). But /etc/systemd/system is a symlink to the store — can't add units.\n\nWhat mechanisms does stock NixOS provide that could start our service at boot without configuration?\n- systemd units in /etc/systemd/system — blocked (symlink to ro store).\n- BUT: we could replace that symlink with a real directory on the ext4 root... At boot, NixOS etc-activation: it uses a perl script that links each declared etc entry. If /etc/systemd/system exists as a directory, the activation would... The NixOS etc setup removes and recreates symlinks; if a real directory exists where it wants a symlink, it would fail or replace it? Historically `etc` activation does `rm -f` then symlink — rm -f on non-empty dir fails → activation errors. Too risky.\n\nAlternative: Is there a systemd unit in the original closure that we can leverage? E.g., does the config include something that runs user services? Check the original system closure for hints — maybe the challenge image has a hook. Look at /nix/store/6j08...-nixos-system-queue-one/etc/systemd/system for custom units.\n\nAlso check systemctl list-unit-files for anything unusual.", "type": "reasoning.text" } ] }, { "type": "text", "text": "Direct kernel boot with fixed `init=` — a reboot boots the original closure, so I need a boot hook within the existing system. Let me inspect its units:" }, { "type": "tool_use", "id": "Bash_0_25220c90", "name": "Bash", "input": { "command": "ls /nix/store/6j086slffzwvbhnr13yfd2gdlw540lwy-nixos-system-queue-one-26.11.20260813.0e251e2/etc/systemd/system/ ; echo ---; systemctl list-unit-files --no-pager | grep -vE '^(proc|sys|dev|run|tmp|var|nix-store)' | head -60", "description": "List units in booted closure" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_25220c90", "content": "accepted-job-spool.service\nautovt@.service\nbasic.target\nblk-availability.service\nbluetooth.target\nboot-complete.target\ncapsule@.service\ncapsule.slice\nconsole-getty.service\ncontainer-getty@.service\ncontainer-getty@.service.d\ncryptsetup-pre.target\ncryptsetup.target\nctrl-alt-del.target\ndbus-broker.service\ndbus-broker.service.d\ndbus-org.freedesktop.hostname1.service\ndbus-org.freedesktop.import1.service\ndbus-org.freedesktop.locale1.service\ndbus-org.freedesktop.login1.service\ndbus-org.freedesktop.machine1.service\ndbus-org.freedesktop.network1.service\ndbus-org.freedesktop.portable1.service\ndbus-org.freedesktop.resolve1.service\ndbus-org.freedesktop.timedate1.service\ndbus.service\ndbus.service.d\ndbus.socket\ndebug-shell.service\ndefault.target\ndefault.target.wants\ndev-hugepages.mount\ndev-mqueue.mount\nemergency.service\nemergency.target\nexit.target\nfactory-reset.target\nfactory-reset.target.wants\nfinal.target\nfirewall.service\nfirst-boot-complete.target\nfs.target\nfstrim.service\nfstrim.timer\nfstrim.timer.d\ngenerate-shutdown-ramfs.service\ngetty-pre.target\ngetty@.service\ngetty@.service.d\ngetty.target\ngetty.target.d\ngraphical.target\nhalt.target\nhibernate.target\nhybrid-sleep.target\njob-api.service\njob-worker.service\nkexec.target\nkexec.target.wants\nkeys.target\nkmod-static-nodes.service\nkmod-static-nodes.service.d\nlastlog2-import.service\nlastlog2-import.service.d\nlinger-users.service\nlocal-fs-pre.target\nlocal-fs.target\nlocal-fs.target.d\nlocal-fs.target.wants\nlogrotate-checkconf.service\nlogrotate.service\nlogrotate.timer\nlvm-devices-import.path\nlvm-devices-import.service\nmachine.slice\nmachines.target\nmodprobe@.service\nmodprobe@.service.d\nmulti-user.target\nmulti-user.target.d\nmulti-user.target.wants\nnetwork-local-commands.service\nnetwork-online.target\nnetwork-online.target.wants\nnetwork-pre.target\nnetwork.target\nnetwork.target.wants\nnix-daemon.service\nnix-daemon.service.d\nnix-daemon.socket\nnix-daemon.socket.d\nnix-gc.service\nnix-optimise.service\nnscd.service\nnss-lookup.target\nnss-lookup.target.requires\nnss-user-lookup.target\nnss-user-lookup.target.requires\npaths.target\npost-boot.service\npoweroff.target\nprepare-kexec.service\nprinter.target\nqemu-guest-agent.service\nreboot.target\nregister-nix-paths.service\nreload-systemd-vconsole-setup.service\nremote-cryptsetup.target\nremote-fs-pre.target\nremote-fs.target\nremote-fs.target.d\nrescue.service\nrescue.target\nrpcbind.target\nrun-initramfs.mount\nrun-wrappers.mount\nserial-getty@.service\nserial-getty@.service.d\nshutdown.target\nshutdown.target.wants\nsigpwr.target\nsleep-actions.service\nsleep.target\nsleep.target.wants\n-.slice\nslices.target\nsmartcard.target\nsockets.target\nsockets.target.wants\nsoft-reboot.target\nsound.target\nsshd-keygen.service\nsshd.service\nsshd@.service\nsshd-vsock@.service.d\nsshd-vsock.socket.d\nsuid-sgid-wrappers.service\nsuspend.target\nsuspend-then-hibernate.target\nswap.target\nsys-fs-fuse-connections.mount\nsysinit-reactivation.target\nsysinit-reactivation.target.requires\nsysinit.target\nsysinit.target.wants\nsys-kernel-config.mount\nsys-kernel-debug.mount\nsys-kernel-tracing.mount\nsyslog.socket\nsystemd-ask-password-console.path\nsystemd-ask-password-console.service\nsystemd-ask-password@.service\nsystemd-ask-password.socket\nsystemd-ask-password-wall.path\nsystemd-ask-password-wall.service\nsystemd-backlight@.service\nsystemd-backlight@.service.d\nsystemd-bless-boot.service\nsystemd-bootctl@.service\nsystemd-bootctl.socket\nsystemd-boot-random-seed.service\nsystemd-boot-random-seed.service.d\nsystemd-coredump@.service\nsystemd-coredump.socket\nsystemd-creds@.service\nsystemd-creds.socket\nsystemd-exit.service\nsystemd-factory-reset-reboot.service\nsystemd-factory-reset-request.service\nsystemd-factory-reset@.service\nsystemd-factory-reset.socket\nsystemd-fsck-root.service\nsystemd-fsck@.service\nsystemd-fsck@.service.d\nsystemd-growfs-root.service\nsystemd-growfs@.service\nsystemd-halt.service\nsystemd-hibernate-clear.service\nsystemd-hibernate.service\nsystemd-hostnamed.service\nsystemd-hostnamed.service.d\nsystemd-hostnamed.socket\nsystemd-hybrid-sleep.service\nsystemd-importd.service\nsystemd-importd.service.d\nsystemd-importd.socket\nsystemd-journal-catalog-update.service\nsystemd-journalctl@.service\nsystemd-journalctl.socket\nsystemd-journald-audit.socket\nsystemd-journald-audit.socket.d\nsystemd-journald-dev-log.socket\nsystemd-journald.service\nsystemd-journald@.service\nsystemd-journald.service.d\nsystemd-journald@.service.d\nsystemd-journald.service.wants\nsystemd-journald.socket\nsystemd-journald@.socket\nsystemd-journald-sync@.service\nsystemd-journald-varlink@.socket\nsystemd-journal-flush.service\nsystemd-journal-flush.service.d\nsystemd-kexec.service\nsystemd-localed.service\nsystemd-localed.service.d\nsystemd-logind.service\nsystemd-logind.service.d\nsystemd-machined.service\nsystemd-machined.socket\nsystemd-machine-id-commit.service\nsystemd-makefs@.service.d\nsystemd-mkswap@.service.d\nsystemd-modules-load.service\nsystemd-modules-load.service.d\nsystemd-mute-console@.service\nsystemd-mute-console.socket\nsystemd-networkd-persistent-storage.service\nsystemd-networkd-resolve-hook.socket\nsystemd-networkd.service\nsystemd-networkd.service.d\nsystemd-networkd.socket\nsystemd-networkd.socket.d\nsystemd-networkd-varlink-metrics.socket\nsystemd-networkd-varlink-metrics.socket.d\nsystemd-networkd-varlink.socket\nsystemd-networkd-wait-online.service\nsystemd-networkd-wait-online@.service\nsystemd-networkd-wait-online.service.d\nsystemd-networkd-wait-online@.service.d\nsystemd-nspawn@.service\nsystemd-nspawn@.service.d\nsystemd-oomd.service\nsystemd-oomd.service.d\nsystemd-oomd.socket\nsystemd-pcrextend@.service\nsystemd-pcrextend.socket\nsystemd-pcrlock@.service\nsystemd-pcrlock.socket\nsystemd-pcrlogin@.service\nsystemd-portabled.service\nsystemd-poweroff.service\nsystemd-pstore.service\nsystemd-pstore.service.d\nsystemd-random-seed.service\nsystemd-random-seed.service.d\nsystemd-reboot.service\nsystemd-remount-fs.service\nsystemd-remount-fs.service.d\nsystemd-repart@.service\nsystemd-repart.socket\nsystemd-resolved-monitor.socket\nsystemd-resolved.service\nsystemd-resolved.service.d\nsystemd-resolved-varlink.socket\nsystemd-rfkill.service\nsystemd-rfkill.socket\nsystemd-soft-reboot.service\nsystemd-suspend.service\nsystemd-suspend-then-hibernate.service\nsystemd-sysctl.service\nsystemd-sysctl.service.d\nsystemd-timedated.service\nsystemd-timedated.service.d\nsystemd-tmpfiles-clean.service\nsystemd-tmpfiles-clean.timer\nsystemd-tmpfiles-resetup.service\nsystemd-tmpfiles-setup-dev-early.service\nsystemd-tmpfiles-setup-dev.service\nsystemd-tmpfiles-setup.service\nsystemd-tpm2-clear.service\nsystemd-tpm2-setup-early.service\nsystemd-tpm2-setup.service\nsystemd-udevd-control.socket\nsystemd-udevd-kernel.socket\nsystemd-udevd.service\nsystemd-udevd.service.d\nsystemd-udevd-varlink.socket\nsystemd-udev-trigger.service\nsystemd-update-done.service\nsystemd-update-utmp.service\nsystemd-update-utmp.service.d\nsystemd-user-sessions.service\nsystemd-user-sessions.service.d\nsystemd-vconsole-setup.service\nsystem.slice\ntimers.target\ntimers.target.wants\ntime-set.target\ntime-sync.target\ntpm2.target\numount.target\nuser-runtime-dir@.service\nuser-runtime-dir@.service.d\nuser@.service\nuser@.service.d\nuser.slice\nuser.slice.d\nuuidd.service\nuuidd.socket\n---\nUNIT FILE STATE PRESET\n-.mount generated -\nnix-.ro\\x2dstore.mount generated -\nnix-.rw\\x2dstore.mount generated -\nlvm-devices-import.path linked ignored\nsession-12.scope transient -\nsession-8.scope transient -\naccepted-job-spool.service enabled ignored\nautovt@.service alias -\nblk-availability.service linked ignored\ncapsule@.service linked ignored\nconsole-getty.service masked ignored\ncontainer-getty@.service linked ignored\ndbus-broker.service enabled ignored\ndbus-org.freedesktop.hostname1.service alias -\ndbus-org.freedesktop.import1.service alias -\ndbus-org.freedesktop.locale1.service alias -\ndbus-org.freedesktop.login1.service alias -\ndbus-org.freedesktop.machine1.service alias -\ndbus-org.freedesktop.network1.service alias -\ndbus-org.freedesktop.portable1.service alias -\ndbus-org.freedesktop.resolve1.service alias -\ndbus-org.freedesktop.timedate1.service alias -\ndbus.service alias -\ndebug-shell.service linked ignored\nemergency.service linked ignored\nfirewall.service enabled ignored\nfstrim.service linked ignored\ngenerate-shutdown-ramfs.service enabled ignored\ngetty@.service enabled ignored\njob-api.service enabled ignored\njob-worker.service enabled ignored\nkmod-static-nodes.service enabled ignored\nlastlog2-import.service enabled ignored\nlinger-users.service enabled ignored\nlogrotate-checkconf.service enabled ignored\nlogrotate.service linked ignored\nlvm-devices-import.service linked ignored\nmodprobe@.service linked ignored\nnetwork-local-commands.service masked ignored\nnix-daemon.service linked ignored\nnix-gc.service linked ignored\nnix-optimise.service linked ignored\nnscd.service enabled ignored\npost-boot.service enabled ignored\nprepare-kexec.service enabled ignored\nqemu-guest-agent.service linked ignored\nregister-nix-paths.service enabled ignored\nreload-systemd-vconsole-setup.service enabled ignored\nrescue.service linked ignored\nserial-getty@.service linked ignored\nsleep-actions.service enabled ignored\nsshd-keygen.service enabled ignored\nsshd-unix-local@.service alias -\nsshd.service enabled ignored\nsshd@.service linked ignored\nsuid-sgid-wrappers.service enabled ignored\nuser-runtime-dir@.service linked ignored\nuser@.service linked ignored\nuuidd.service linked ignored\n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "The original closure already contains `job-api.service`, `job-worker.service`, and `accepted-job-spool.service` — all enabled. Let me read them.", "details": [ { "format": "unknown", "index": 0, "text": "The original closure already contains `job-api.service`, `job-worker.service`, and `accepted-job-spool.service` — all enabled. Let me read them.", "type": "reasoning.text" } ] }, { "type": "text", "text": "The booted closure already ships `job-api.service`, `job-worker.service`, and `accepted-job-spool.service` (all enabled). Reading them:" }, { "type": "tool_use", "id": "Bash_0_5fd1a969", "name": "Bash", "input": { "command": "S=/nix/store/6j086slffzwvbhnr13yfd2gdlw540lwy-nixos-system-queue-one-26.11.20260813.0e251e2/etc/systemd/system; for u in job-api.service job-worker.service accepted-job-spool.service post-boot.service; do echo \"=== $u ===\"; cat $S/$u; done", "description": "Read pre-provisioned unit files" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_5fd1a969", "content": "=== job-api.service ===\n[Unit]\nAfter=network.target accepted-job-spool.service\nConditionPathExists=/etc/replaybook/job-api-start\nDescription=Player-defined job API lifecycle slot\nRequires=accepted-job-spool.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/bin/sh /etc/replaybook/job-api-start\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n=== job-worker.service ===\n[Unit]\nAfter=accepted-job-spool.service\nConditionPathExists=/etc/replaybook/job-worker-start\nDescription=Player-defined job worker lifecycle slot\nRequires=accepted-job-spool.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/bin/sh /etc/replaybook/job-worker-start\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n=== accepted-job-spool.service ===\n[Unit]\nDescription=Preserve opaque jobs accepted before the deployment\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/4xk39cb75p2k2ir5p9q1bh982fqcz9d1-unit-script-accepted-job-spool-start/bin/accepted-job-spool-start \nRemainAfterExit=true\nType=oneshot\n\n[Install]\nWantedBy=multi-user.target\n=== post-boot.service ===\n[Unit]\nDescription=Post-Boot Actions\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nX-RestartIfChanged=false\nExecStart=/nix/store/ir8mnq2xq8pn9csbka6yhrb3vvm6pckw-unit-script-post-boot-start/bin/post-boot-start \nExecStop=/nix/store/zr7nalpvziqwnx8gw4h9br9mr29bshaj-unit-script-post-boot-pre-stop/bin/post-boot-pre-stop\nRemainAfterExit=true\nType=oneshot\n\n[Install]\nWantedBy=multi-user.target\n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "The design: the system provides lifecycle slots. `/etc/replaybook/job-api-start` and `/etc/replaybook/job-worker-start` are player-provided scripts. `/etc` is on the rw ext4, and `/etc/replaybook` isn't managed by NixOS activation (it's not in the static etc), so files there persist across reboot. The units are already enabled (WantedBy=multi-user.target), with ConditionPathExists on those scripts.\n\nAlso check what accepted-job-spool-start does — probably it (re)creates /var/lib/accepted-jobs content at boot. Let's read it. Also post-boot script.\n\nSo the deployment: write /etc/replaybook/job-api-start and /etc/replaybook/job-worker-start scripts that exec python3 with my code. Code location: /opt/jobsvc persists (ext4 root). But wait — is /opt on the persistent ext4? Yes, / is ext4 rw. But careful: some challenge VMs have tmpfs root... mount shows /dev/vda on / ext4 rw. Good.\n\nCheck python path: /run/current-system/sw/bin/python3 exists now; will exist after reboot (same closure). Good.\n\nLet me read the accepted-job-spool script to understand semantics of the spool (does it regenerate the spool dir at boot?).", "details": [ { "format": "unknown", "index": 0, "text": "The design: the system provides lifecycle slots. `/etc/replaybook/job-api-start` and `/etc/replaybook/job-worker-start` are player-provided scripts. `/etc` is on the rw ext4, and `/etc/replaybook` isn't managed by NixOS activation (it's not in the static etc), so files there persist across reboot. The units are already enabled (WantedBy=multi-user.target), with ConditionPathExists on those scripts.\n\nAlso check what accepted-job-spool-start does — probably it (re)creates /var/lib/accepted-jobs content at boot. Let's read it. Also post-boot script.\n\nSo the deployment: write /etc/replaybook/job-api-start and /etc/replaybook/job-worker-start scripts that exec python3 with my code. Code location: /opt/jobsvc persists (ext4 root). But wait — is /opt on the persistent ext4? Yes, / is ext4 rw. But careful: some challenge VMs have tmpfs root... mount shows /dev/vda on / ext4 rw. Good.\n\nCheck python path: /run/current-system/sw/bin/python3 exists now; will exist after reboot (same closure). Good.\n\nLet me read the accepted-job-spool script to understand semantics of the spool (does it regenerate the spool dir at boot?).", "type": "reasoning.text" } ] }, { "type": "text", "text": "The system provides player lifecycle slots: `/etc/replaybook/job-api-start` and `/etc/replaybook/job-worker-start`. Let me check the spool script:" }, { "type": "tool_use", "id": "Bash_0_26376f04", "name": "Bash", "input": { "command": "cat /nix/store/4xk39cb75p2k2ir5p9q1bh982fqcz9d1-unit-script-accepted-job-spool-start/bin/accepted-job-spool-start; echo ===; cat /nix/store/ir8mnq2xq8pn9csbka6yhrb3vvm6pckw-unit-script-post-boot-start/bin/post-boot-start; echo ===; ls /etc/replaybook 2>/dev/null; echo ===; systemctl status accepted-job-spool.service post-boot.service --no-pager 2>&1 | head -20", "description": "Read spool and post-boot scripts" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_26376f04", "content": "#!/nix/store/byi2zpy2bgcf3dr6y0l8m50rmjj8z7q1-bash-5.3p15/bin/bash\nset -e\n\ninstall -d -m 0755 /var/lib/accepted-jobs\n/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python - <<'PY'\nimport json\nfrom pathlib import Path\nfor job, payload in [('accepted-alpha-7d3', 'alpha'), ('accepted-beta-91e', 'beta'), ('accepted-gamma-c42', 'gamma')]:\n path = Path('/var/lib/accepted-jobs') / f'{job}.json'\n if not path.exists():\n path.write_text(json.dumps({'id': job, 'payload': payload, 'status': 'accepted'}))\nPY\n\n\n===\n#!/nix/store/byi2zpy2bgcf3dr6y0l8m50rmjj8z7q1-bash-5.3p15/bin/bash\nset -e\n\n# NixOS post-boot script\n\n# config.powerManagement.bootCommands\n\n\n# config.powerManagement.powerUpCommands\n\n\n\n===\n===\n● accepted-job-spool.service - Preserve opaque jobs accepted before the deployment\n Loaded: loaded (/etc/systemd/system/accepted-job-spool.service; enabled; preset: ignored)\n Active: active (exited) since Sun 2026-09-13 17:40:35 UTC; 1min 25s ago\n Invocation: f4d620866fd8416187ee689da9076f7c\n Process: 501 ExecStart=/nix/store/4xk39cb75p2k2ir5p9q1bh982fqcz9d1-unit-script-accepted-job-spool-start/bin/accepted-job-spool-start (code=exited, status=0/SUCCESS)\n Main PID: 501 (code=exited, status=0/SUCCESS)\n IP: 0B in, 0B out\n IO: 0B read, 0B written\n Mem peak: 12.6M\n CPU: 132ms\n\nSep 13 17:40:33 queue-one systemd[1]: Starting Preserve opaque jobs accepted before the deployment...\nSep 13 17:40:35 queue-one systemd[1]: Finished Preserve opaque jobs accepted before the deployment.\n\n● post-boot.service - Post-Boot Actions\n Loaded: loaded (/etc/systemd/system/post-boot.service; enabled; preset: ignored)\n Active: active (exited) since Sun 2026-09-13 17:40:34 UTC; 1min 26s ago\n Invocation: 8faef7e58a624824a64e4ec42c3ddfc7\n Process: 507 ExecStart=/nix/store/ir8mnq2xq8pn9csbka6yhrb3vvm6pckw-unit-script-post-boot-start/bin/post-boot-start (code=exited, status=0/SUCCESS)\n Main PID: 507 (code=exited, status=0/SUCCESS)\n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "Clear picture now. The spool service recreates the three accepted jobs at boot (if missing). The lifecycle slots run `/bin/sh /etc/replaybook/job-api-start` and `/etc/replaybook/job-worker-start`. I just need to:\n\n1. Create /etc/replaybook/ with the two scripts (persist on ext4 /etc — but wait: does NixOS activation wipe unmanaged files in /etc? No — NixOS only manages declared entries; unmanaged files persist. /etc/replaybook doesn't exist in the static etc, so it will persist.)\n\nHmm, but one concern: is /etc itself on persistent storage? / is /dev/vda ext4 rw. Yes, persistent. And reboot boots same closure which has the units enabled, ConditionPathExists passes, services start. \n\n2. Code at /opt/jobsvc persists on ext4. Good. But python path /run/current-system/sw/bin/python3 — exists after reboot. Even better: use the exact store python from the spool script: /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python — guaranteed to exist in the closure. But /run/current-system/sw/bin/python3 is also fine. I'll use the store path for robustness... Actually simpler to keep /run/current-system/sw/bin/python3; both fine. I'll use the store path pinned, since nix-gc could theoretically... no, gc won't remove live closure. Either way. Use /run/current-system/sw/bin/python3.\n\n3. Start the services now: systemctl daemon-reload; systemctl start job-api job-worker.\n\nNote: Restart=always on the units wraps the shell script; my scripts should exec the python so signals propagate. Use `exec`.\n\nAlso the worker lifecycle slot: \"job-worker.service so operations can restart it independently\" — perfect fit.\n\nStorage: /var/lib/jobs/jobs.db on ext4 — persists.\n\nOne issue: my api.py and worker.py import db — need PYTHONPATH or run with cwd. Set `cd /opt/jobsvc` in scripts, or sys.path. I'll add `cd /opt/jobsvc && exec python3 api.py`. Python adds script's dir to sys.path automatically, so `import db` works regardless of cwd.\n\nWrite the replaybook scripts now.", "details": [ { "format": "unknown", "index": 0, "text": "Clear picture now. The spool service recreates the three accepted jobs at boot (if missing). The lifecycle slots run `/bin/sh /etc/replaybook/job-api-start` and `/etc/replaybook/job-worker-start`. I just need to:\n\n1. Create /etc/replaybook/ with the two scripts (persist on ext4 /etc — but wait: does NixOS activation wipe unmanaged files in /etc? No — NixOS only manages declared entries; unmanaged files persist. /etc/replaybook doesn't exist in the static etc, so it will persist.)\n\nHmm, but one concern: is /etc itself on persistent storage? / is /dev/vda ext4 rw. Yes, persistent. And reboot boots same closure which has the units enabled, ConditionPathExists passes, services start. \n\n2. Code at /opt/jobsvc persists on ext4. Good. But python path /run/current-system/sw/bin/python3 — exists after reboot. Even better: use the exact store python from the spool script: /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python — guaranteed to exist in the closure. But /run/current-system/sw/bin/python3 is also fine. I'll use the store path for robustness... Actually simpler to keep /run/current-system/sw/bin/python3; both fine. I'll use the store path pinned, since nix-gc could theoretically... no, gc won't remove live closure. Either way. Use /run/current-system/sw/bin/python3.\n\n3. Start the services now: systemctl daemon-reload; systemctl start job-api job-worker.\n\nNote: Restart=always on the units wraps the shell script; my scripts should exec the python so signals propagate. Use `exec`.\n\nAlso the worker lifecycle slot: \"job-worker.service so operations can restart it independently\" — perfect fit.\n\nStorage: /var/lib/jobs/jobs.db on ext4 — persists.\n\nOne issue: my api.py and worker.py import db — need PYTHONPATH or run with cwd. Set `cd /opt/jobsvc` in scripts, or sys.path. I'll add `cd /opt/jobsvc && exec python3 api.py`. Python adds script's dir to sys.path automatically, so `import db` works regardless of cwd.\n\nWrite the replaybook scripts now.", "type": "reasoning.text" } ] }, { "type": "text", "text": "Everything is clear now. The host provides enabled lifecycle-slot units that execute `/etc/replaybook/job-{api,worker}-start` (on persistent ext4), and the spool service re-materializes the three pre-accepted jobs at every boot. I just need to fill the slots." }, { "type": "tool_use", "id": "Bash_0_1affeed2", "name": "Bash", "input": { "command": "mkdir -p /etc/replaybook && cat > /etc/replaybook/job-api-start <<'EOF'\n#!/bin/sh\nexec /run/current-system/sw/bin/python3 /opt/jobsvc/api.py\nEOF\ncat > /etc/replaybook/job-worker-start <<'EOF'\n#!/bin/sh\nexec /run/current-system/sw/bin/python3 /opt/jobsvc/worker.py\nEOF\nchmod +x /etc/replaybook/job-api-start /etc/replaybook/job-worker-start\nsystemctl daemon-reload\nsystemctl start job-api.service job-worker.service\nsleep 2\nsystemctl is-active job-api.service job-worker.service", "description": "Install replaybook slot scripts and start services" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "Bash_0_1affeed2", "content": "active\nactive\n" } ] } ], "tool_trace": [ { "id": "Bash_0_592fc2bc", "name": "Bash", "input": { "command": "ls / /root /var /srv /opt /tmp 2>/dev/null; echo ---; systemctl --version 2>/dev/null | head -1; echo ---; ps aux | head -30", "description": "Inspect host layout and processes" }, "output": "/:\nbin\ndev\netc\nhome\nlib64\nlost+found\nnix\nproc\nroot\nrun\nsrv\nsys\ntmp\nusr\nvar\n\n/root:\n\n/srv:\n\n/tmp:\nshared\nsystemd-private-96fec388c087430a9c8abee09a05077a-dbus-broker.service-6uwYHF\nsystemd-private-96fec388c087430a9c8abee09a05077a-nscd.service-zQDaYL\nsystemd-private-96fec388c087430a9c8abee09a05077a-systemd-logind.service-WL7luD\nxchg\n\n/var:\ncache\ndb\nempty\nlib\nlock\nlog\nrun\nspool\ntmp\n---\nsystemd 261 (261.1)\n---\nUSER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND\nroot 1 5.6 1.6 18772 11708 ? Ss 17:40 0:01 /run/current-system/systemd/lib/systemd/systemd --switched-root --system --deserialize=28\nroot 2 0.0 0.0 0 0 ? S 17:40 0:00 [kthreadd]\nroot 3 0.0 0.0 0 0 ? S 17:40 0:00 [pool_workqueue_release]\nroot 4 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-rcu_gp]\nroot 5 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-sync_wq]\nroot 6 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-kvfree_rcu_reclaim]\nroot 7 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-slub_flushwq]\nroot 8 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-netns]\nroot 9 0.0 0.0 0 0 ? I 17:40 0:00 [kworker/0:0-events]\nroot 10 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/0:0H-kblockd]\nroot 11 0.0 0.0 0 0 ? I 17:40 0:00 [kworker/0:1-events]\nroot 12 0.0 0.0 0 0 ? I 17:40 0:00 [kworker/u4:0-events_unbound]\nroot 13 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-mm_percpu_wq]\nroot 14 1.8 0.0 0 0 ? I 17:40 0:00 [kworker/u4:1-events_unbound]\nroot 15 0.0 0.0 0 0 ? S 17:40 0:00 [ksoftirqd/0]\nroot 16 0.0 0.0 0 0 ? I 17:40 0:00 [rcu_preempt]\nroot 17 0.0 0.0 0 0 ? S 17:40 0:00 [rcu_exp_par_gp_kthread_worker/0]\nroot 18 0.0 0.0 0 0 ? S 17:40 0:00 [rcu_exp_gp_kthread_worker]\nroot 19 0.0 0.0 0 0 ? S 17:40 0:00 [migration/0]\nroot 20 0.0 0.0 0 0 ? S 17:40 0:00 [idle_inject/0]\nroot 21 0.0 0.0 0 0 ? S 17:40 0:00 [cpuhp/0]\nroot 22 0.0 0.0 0 0 ? S 17:40 0:00 [kdevtmpfs]\nroot 23 0.0 0.0 0 0 ? I< 17:40 0:00 [kworker/R-inet_frag_wq]\nroot 24 0.0 0.0 0 0 ? I 17:40 0:00 [rcu_tasks_kthread]\nroot 25 0.0 0.0 0 0 ? I 17:40 0:00 [rcu_tasks_rude_kthread]\nroot 26 0.0 0.0 0 0 ? I 17:40 0:00 [rcu_tasks_trace_kthread]\nroot 27 0.0 0.0 0 0 ? S 17:40 0:00 [kauditd]\nroot 28 0.0 0.0 0 0 ? S 17:40 0:00 [khungtaskd]\nroot 29 0.0 0.0 0 0 ? S 17:40 0:00 [oom_reaper]\n", "is_error": false, "read_only": false, "started_after_ms": 1999, "duration_ms": 57 }, { "id": "Bash_0_4d980deb", "name": "Bash", "input": { "command": "ls -laR /tmp/shared /tmp/xchg /var/spool /var/db /var/lib 2>/dev/null | head -80", "description": "Look for pre-existing job data" }, "output": "/tmp/shared:\ntotal 4\ndrwxr-xr-x 2 1000 1000 40 Sep 13 17:40 .\ndrwxrwxrwt 11 root root 4096 Sep 13 17:40 ..\n\n/tmp/xchg:\ntotal 4\ndrwxr-xr-x 2 1000 1000 40 Sep 13 17:40 .\ndrwxrwxrwt 11 root root 4096 Sep 13 17:40 ..\n\n/var/db:\ntotal 8\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n\n/var/lib:\ntotal 36\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 accepted-jobs\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 lastlog\ndrwx------ 2 root root 4096 Sep 13 17:40 machines\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 nixos\ndrwx------ 2 root root 4096 Sep 13 17:40 portables\ndrwx------ 2 root root 4096 Sep 13 17:40 private\ndrwxr-xr-x 8 root root 4096 Sep 13 17:40 systemd\n\n/var/lib/accepted-jobs:\ntotal 20\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n-rw-r--r-- 1 root root 70 Sep 13 17:40 accepted-alpha-7d3.json\n-rw-r--r-- 1 root root 68 Sep 13 17:40 accepted-beta-91e.json\n-rw-r--r-- 1 root root 70 Sep 13 17:40 accepted-gamma-c42.json\n\n/var/lib/lastlog:\ntotal 8\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n-rw-r--r-- 1 root root 0 Sep 13 17:40 lastlog2.db\n\n/var/lib/machines:\ntotal 8\ndrwx------ 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n\n/var/lib/nixos:\ntotal 28\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n-rw-r--r-- 1 root root 3 Sep 13 17:40 auto-subuid-map\n-rw-r--r-- 1 root root 237 Sep 13 17:40 declarative-groups\n-rw-r--r-- 1 root root 372 Sep 13 17:40 declarative-users\n-rw-r--r-- 1 root root 417 Sep 13 17:40 gid-map\n-rw-r--r-- 1 root root 682 Sep 13 17:40 uid-map\n\n/var/lib/portables:\ntotal 8\ndrwx------ 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n\n/var/lib/private:\ntotal 8\ndrwx------ 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\n\n/var/lib/systemd:\ntotal 36\ndrwxr-xr-x 8 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 9 root root 4096 Sep 13 17:40 ..\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 catalog\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 coredump\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 ephemeral-trees\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 linger\ndrwxr-xr-x 2 systemd-network systemd-network 4096 Sep 13 17:40 network\n-rw------- 1 root root 32 Sep 13 17:40 random-seed\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 timers\n\n/var/lib/systemd/catalog:\ntotal 292\n", "is_error": false, "read_only": false, "started_after_ms": 4563, "duration_ms": 35 }, { "id": "Bash_0_af33dcb3", "name": "Bash", "input": { "command": "cat /var/lib/accepted-jobs/*.json; echo ---; which python3 python go node sqlite3 2>/dev/null; python3 --version 2>/dev/null", "description": "Read pre-accepted jobs and check tooling" }, "output": "{\"id\": \"accepted-alpha-7d3\", \"payload\": \"alpha\", \"status\": \"accepted\"}{\"id\": \"accepted-beta-91e\", \"payload\": \"beta\", \"status\": \"accepted\"}{\"id\": \"accepted-gamma-c42\", \"payload\": \"gamma\", \"status\": \"accepted\"}---\n/run/current-system/sw/bin/python3\n/run/current-system/sw/bin/python\n/run/current-system/sw/bin/sqlite3\nPython 3.14.7\n", "is_error": false, "read_only": false, "started_after_ms": 6417, "duration_ms": 47 }, { "id": "Write_0_b3775b9e", "name": "Write", "input": { "content": "\"\"\"Shared SQLite storage layer for the job service.\"\"\"\nimport json\nimport os\nimport sqlite3\n\nDB_PATH = \"/var/lib/jobs/jobs.db\"\nLEGACY_DIR = \"/var/lib/accepted-jobs\"\n\nSCHEMA = \"\"\"\nCREATE TABLE IF NOT EXISTS jobs (\n id TEXT PRIMARY KEY,\n payload TEXT NOT NULL,\n status TEXT NOT NULL,\n result TEXT,\n attempts INTEGER NOT NULL DEFAULT 0\n);\n\"\"\"\n\n\ndef connect():\n os.makedirs(os.path.dirname(DB_PATH), exist_ok=True)\n conn = sqlite3.connect(DB_PATH, timeout=30)\n conn.execute(\"PRAGMA journal_mode=WAL\")\n conn.execute(\"PRAGMA synchronous=FULL\")\n conn.executescript(SCHEMA)\n return conn\n\n\ndef accept_job(conn, job_id, payload):\n \"\"\"Accept a job exactly once; re-posts of an existing id are no-ops.\"\"\"\n conn.execute(\n \"INSERT OR IGNORE INTO jobs (id, payload, status, attempts) VALUES (?, ?, 'accepted', 0)\",\n (job_id, payload),\n )\n conn.commit()\n\n\ndef get_job(conn, job_id):\n row = conn.execute(\n \"SELECT id, payload, status, result, attempts FROM jobs WHERE id = ?\",\n (job_id,),\n ).fetchone()\n if row is None:\n return None\n return {\n \"id\": row[0],\n \"payload\": row[1],\n \"status\": row[2],\n \"result\": row[3],\n \"attempts\": row[4],\n }\n\n\ndef import_legacy(conn):\n \"\"\"Recover jobs accepted before this service existed.\"\"\"\n if not os.path.isdir(LEGACY_DIR):\n return 0\n count = 0\n for name in sorted(os.listdir(LEGACY_DIR)):\n if not name.endswith(\".json\"):\n continue\n path = os.path.join(LEGACY_DIR, name)\n try:\n with open(path, \"r\", encoding=\"utf-8\") as fh:\n data = json.load(fh)\n job_id = data[\"id\"]\n payload = data[\"payload\"]\n except (OSError, ValueError, KeyError):\n continue\n before = conn.total_changes\n accept_job(conn, str(job_id), str(payload))\n if conn.total_changes > before:\n count += 1\n return count\n", "file_path": "/opt/jobsvc/db.py" }, "output": "Successfully wrote to /opt/jobsvc/db.py", "is_error": false, "read_only": false, "started_after_ms": 25385, "duration_ms": 0 }, { "id": "Write_1_5408e699", "name": "Write", "input": { "content": "\"\"\"HTTP front-end for the job service. Runs as job-api.service.\"\"\"\nimport json\nfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n\nimport db\n\n\nclass Handler(BaseHTTPRequestHandler):\n protocol_version = \"HTTP/1.1\"\n server_version = \"job-api/1.0\"\n\n def _send(self, code, body, content_type=\"text/plain\"):\n data = body.encode(\"utf-8\")\n self.send_response(code)\n self.send_header(\"Content-Type\", content_type)\n self.send_header(\"Content-Length\", str(len(data)))\n self.end_headers()\n self.wfile.write(data)\n\n def log_message(self, *args):\n pass\n\n def do_GET(self):\n if self.path == \"/health\":\n self._send(200, \"ready\")\n return\n if self.path.startswith(\"/jobs/\"):\n job_id = self.path[len(\"/jobs/\"):]\n if not job_id or \"/\" in job_id:\n self._send(404, \"not found\")\n return\n conn = db.connect()\n try:\n job = db.get_job(conn, job_id)\n finally:\n conn.close()\n if job is None:\n self._send(404, \"not found\")\n return\n self._send(200, json.dumps(job), \"application/json\")\n return\n self._send(404, \"not found\")\n\n def do_POST(self):\n if self.path.startswith(\"/jobs/\"):\n job_id = self.path[len(\"/jobs/\"):]\n if not job_id or \"/\" in job_id:\n self._send(404, \"not found\")\n return\n length = int(self.headers.get(\"Content-Length\") or 0)\n payload = self.rfile.read(length).decode(\"utf-8\")\n conn = db.connect()\n try:\n db.accept_job(conn, job_id, payload)\n finally:\n conn.close()\n self._send(202, \"accepted\")\n return\n self._send(404, \"not found\")\n\n\ndef main():\n # Recover any pre-existing accepted work on startup as well.\n conn = db.connect()\n try:\n db.import_legacy(conn)\n finally:\n conn.close()\n server = ThreadingHTTPServer((\"0.0.0.0\", 8080), Handler)\n server.serve_forever()\n\n\nif __name__ == \"__main__\":\n main()\n", "file_path": "/opt/jobsvc/api.py" }, "output": "Successfully wrote to /opt/jobsvc/api.py", "is_error": false, "read_only": false, "started_after_ms": 25385, "duration_ms": 0 }, { "id": "Write_2_3e2f75dc", "name": "Write", "input": { "content": "\"\"\"Job processor. Runs as job-worker.service.\"\"\"\nimport time\n\nimport db\n\nPOLL_INTERVAL = 0.25\n\n\ndef claim(conn):\n \"\"\"Atomically claim one accepted job. Returns (id, payload) or None.\"\"\"\n row = conn.execute(\n \"SELECT id, payload FROM jobs WHERE status = 'accepted' ORDER BY rowid LIMIT 1\"\n ).fetchone()\n if row is None:\n return None\n cur = conn.execute(\n \"UPDATE jobs SET status = 'processing' WHERE id = ? AND status = 'accepted'\",\n (row[0],),\n )\n conn.commit()\n if cur.rowcount == 0:\n return None\n return row\n\n\ndef process(conn, job_id, payload):\n result = \"processed:\" + payload\n conn.execute(\n \"UPDATE jobs SET status = 'completed', result = ?, attempts = attempts + 1 WHERE id = ?\",\n (result, job_id),\n )\n conn.commit()\n\n\ndef main():\n conn = db.connect()\n recovered = db.import_legacy(conn)\n if recovered:\n print(f\"recovered {recovered} pre-accepted job(s)\", flush=True)\n while True:\n claimed = claim(conn)\n if claimed is None:\n time.sleep(POLL_INTERVAL)\n continue\n job_id, payload = claimed\n try:\n process(conn, job_id, payload)\n except Exception as exc: # leave job in processing; log and continue\n print(f\"job {job_id} failed: {exc}\", flush=True)\n time.sleep(1)\n\n\nif __name__ == \"__main__\":\n main()\n", "file_path": "/opt/jobsvc/worker.py" }, "output": "Successfully wrote to /opt/jobsvc/worker.py", "is_error": false, "read_only": false, "started_after_ms": 25385, "duration_ms": 0 }, { "id": "Write_0_6a4a16f4", "name": "Write", "input": { "content": "[Unit]\nDescription=Job service HTTP API\nAfter=network.target\n\n[Service]\nExecStart=/run/current-system/sw/bin/python3 /opt/jobsvc/api.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n", "file_path": "/etc/systemd/system/job-api.service" }, "output": "Tool Write failed: Read-only file system (os error 30)", "is_error": true, "read_only": false, "started_after_ms": 28974, "duration_ms": 1 }, { "id": "Write_1_ca34efc9", "name": "Write", "input": { "content": "[Unit]\nDescription=Job service worker\nAfter=network.target job-api.service\n\n[Service]\nExecStart=/run/current-system/sw/bin/python3 /opt/jobsvc/worker.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n", "file_path": "/etc/systemd/system/job-worker.service" }, "output": "Tool Write failed: Read-only file system (os error 30)", "is_error": true, "read_only": false, "started_after_ms": 28976, "duration_ms": 0 }, { "id": "Bash_0_08087506", "name": "Bash", "input": { "command": "mount | grep -E ' /etc| / | /run| /var| /nix' ; echo ---; ls -la /etc/systemd 2>/dev/null; touch /etc/testwrite 2>&1; ls -la /etc/systemd/system 2>/dev/null | head", "description": "Check filesystem writability for systemd units" }, "output": "/dev/vda on / type ext4 (rw,relatime,x-initrd.mount)\ntmpfs on /nix/.rw-store type tmpfs (rw,relatime,mode=755,x-initrd.mount)\nnix-store on /nix/.ro-store type 9p (rw,relatime,cache=0xf,access=client,msize=16384,trans=virtio,x-initrd.mount,x-systemd.requires=modprobe@9pnet_virtio.service)\ntmpfs on /run type tmpfs (rw,nosuid,nodev,size=182284k,nr_inodes=819200,mode=755)\noverlay on /nix/store type overlay (rw,relatime,lowerdir=/sysroot/nix/.ro-store,upperdir=/sysroot/nix/.rw-store/upper,workdir=/sysroot/nix/.rw-store/work,uuid=on,x-initrd.mount,x-systemd.requires-mounts-for=/sysroot/nix/.ro-store,x-systemd.requires-mounts-for=/sysroot/nix/.rw-store/upper,x-systemd.requires-mounts-for=/sysroot/nix/.rw-store/work)\nramfs on /run/keys type ramfs (rw,nosuid,nodev,relatime,mode=750)\noverlay on /nix/store type overlay (ro,nosuid,nodev,relatime,lowerdir=/sysroot/nix/.ro-store,upperdir=/sysroot/nix/.rw-store/upper,workdir=/sysroot/nix/.rw-store/work,uuid=on)\nnone on /run/credentials/systemd-journald.service type tmpfs (ro,nosuid,nodev,noexec,relatime,nosymfollow,size=1024k,nr_inodes=1024,mode=700,noswap)\nnone on /run/credentials/systemd-resolved.service type tmpfs (ro,nosuid,nodev,noexec,relatime,nosymfollow,size=1024k,nr_inodes=1024,mode=700,noswap)\ntmpfs on /run/wrappers type tmpfs (rw,nodev,relatime,size=364568k,mode=755)\nnone on /run/credentials/systemd-networkd.service type tmpfs (ro,nosuid,nodev,noexec,relatime,nosymfollow,size=1024k,nr_inodes=1024,mode=700,noswap)\nnone on /run/credentials/getty@tty1.service type tmpfs (ro,nosuid,nodev,noexec,relatime,nosymfollow,size=1024k,nr_inodes=1024,mode=700,noswap)\nnone on /run/credentials/serial-getty@ttyS0.service type tmpfs (ro,nosuid,nodev,noexec,relatime,nosymfollow,size=1024k,nr_inodes=1024,mode=700,noswap)\ntmpfs on /run/user/0 type tmpfs (rw,nosuid,nodev,relatime,size=72912k,nr_inodes=18228,mode=700)\n---\ntotal 24\ndrwxr-xr-x 6 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 22 root root 4096 Sep 13 17:40 ..\nlrwxrwxrwx 1 root root 33 Sep 13 17:40 coredump.conf -> /etc/static/systemd/coredump.conf\nlrwxrwxrwx 1 root root 46 Sep 13 17:40 generator-environment.json -> /etc/static/systemd/generator-environment.json\nlrwxrwxrwx 1 root root 33 Sep 13 17:40 journald.conf -> /etc/static/systemd/journald.conf\nlrwxrwxrwx 1 root root 31 Sep 13 17:40 logind.conf -> /etc/static/systemd/logind.conf\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 network\nlrwxrwxrwx 1 root root 33 Sep 13 17:40 networkd.conf -> /etc/static/systemd/networkd.conf\nlrwxrwxrwx 1 root root 29 Sep 13 17:40 oomd.conf -> /etc/static/systemd/oomd.conf\nlrwxrwxrwx 1 root root 33 Sep 13 17:40 resolved.conf -> /etc/static/systemd/resolved.conf\nlrwxrwxrwx 1 root root 30 Sep 13 17:40 sleep.conf -> /etc/static/systemd/sleep.conf\nlrwxrwxrwx 1 root root 26 Sep 13 17:40 system -> /etc/static/systemd/system\nlrwxrwxrwx 1 root root 31 Sep 13 17:40 system.conf -> /etc/static/systemd/system.conf\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 system-environment-generators\nlrwxrwxrwx 1 root root 37 Sep 13 17:40 system-generators -> /etc/static/systemd/system-generators\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 system-preset\nlrwxrwxrwx 1 root root 35 Sep 13 17:40 system-shutdown -> /etc/static/systemd/system-shutdown\nlrwxrwxrwx 1 root root 24 Sep 13 17:40 user -> /etc/static/systemd/user\nlrwxrwxrwx 1 root root 29 Sep 13 17:40 user.conf -> /etc/static/systemd/user.conf\nlrwxrwxrwx 1 root root 35 Sep 13 17:40 user-generators -> /etc/static/systemd/user-generators\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 user-preset\nlrwxrwxrwx 1 root root 26 Sep 13 17:40 /etc/systemd/system -> /etc/static/systemd/system\n", "is_error": false, "read_only": false, "started_after_ms": 32615, "duration_ms": 60 }, { "id": "Bash_0_325a6159", "name": "Bash", "input": { "command": "ls -la /etc/nixos/ 2>/dev/null; cat /etc/nixos/configuration.nix 2>/dev/null | head -60; which nixos-rebuild nix", "description": "Check NixOS configuration presence" }, "output": "total 8\ndrwxr-xr-x 2 root root 4096 Sep 13 17:40 .\ndrwxr-xr-x 22 root root 4096 Sep 13 17:41 ..\n/run/current-system/sw/bin/nixos-rebuild\n/run/current-system/sw/bin/nix\n", "is_error": false, "read_only": false, "started_after_ms": 38662, "duration_ms": 46 }, { "id": "Bash_0_54182ab8", "name": "Bash", "input": { "command": "ls -la /etc/static 2>/dev/null | head -3; readlink -f /etc/static; ls /boot 2>/dev/null; nixos-version; cat /run/current-system/init 2>/dev/null | head -1; ls /run/current-system/ | head -20", "description": "Inspect /etc/static, boot setup, NixOS version" }, "output": "[binary stdout suppressed: 6883 bytes]", "is_error": false, "read_only": false, "started_after_ms": 46470, "duration_ms": 80 }, { "id": "Bash_0_baab58e4", "name": "Bash", "input": { "command": "readlink -f /etc/static; echo ---; ls /boot 2>/dev/null; echo ---; nixos-version; echo ---; ls /run/current-system/", "description": "Inspect static etc target and boot" }, "output": "/nix/store/x2w444jiry3bhdcl2ngnq8sxlnz8ixyv-etc/etc\n---\n---\n26.11.20260813.0e251e2 (Zokor)\n---\nactivate\nbin\nboot.json\nconfiguration-name\ndry-activate\netc\nextra-dependencies\nfirmware\ninit\ninit-interface-version\ninitrd\nkernel\nkernel-modules\nkernel-params\nnixos-version\nprepare-root\nspecialisation\nsw\nswitch-inhibitors\nsystem\nsystemd\n", "is_error": false, "read_only": false, "started_after_ms": 48524, "duration_ms": 47 }, { "id": "Bash_0_e3e8606b", "name": "Bash", "input": { "command": "cat /run/current-system/boot.json 2>/dev/null; echo ---; cat /proc/cmdline", "description": "Check boot mechanism and kernel cmdline" }, "output": "{\n \"org.nixos.bootspec.v1\": {\n \"init\": \"/nix/store/6j086slffzwvbhnr13yfd2gdlw540lwy-nixos-system-queue-one-26.11.20260813.0e251e2/init\",\n \"initrd\": \"/nix/store/llmadn01b4bdv76ajlsvb4rmqbjya8cj-initrd-linux-6.18.44/initrd\",\n \"kernel\": \"/nix/store/g2pr3jm02ypf6fhmkk1z27lp2iyljyq1-linux-6.18.44/bzImage\",\n \"kernelParams\": [\n \"root=fstab\",\n \"loglevel=4\",\n \"net.ifnames=0\",\n \"lsm=landlock,yama,bpf\"\n ],\n \"label\": \"NixOS Zokor 26.11.20260813.0e251e2 (Linux 6.18.44)\",\n \"system\": \"x86_64-linux\",\n \"toplevel\": \"/nix/store/6j086slffzwvbhnr13yfd2gdlw540lwy-nixos-system-queue-one-26.11.20260813.0e251e2\"\n },\n \"org.nixos.nixos-init.v1\": {\n \"env_binary\": \"/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin/env\",\n \"firmware\": \"/nix/store/jp7z09wd7vjkfsc7s224l3nl4pz2hkb9-firmware/lib/firmware\",\n \"modprobe_binary\": \"/nix/store/xxx9p6yah6yv90053vhqcnn4k86674ji-kmod-31/bin/modprobe\",\n \"nix_store_mount_opts\": [\n \"ro\",\n \"nodev\",\n \"nosuid\"\n ],\n \"sh_binary\": \"/nix/store/90nk33c4fkyg4x4dfk5cykqiryf2nlqq-bash-interactive-5.3p15/bin/sh\"\n },\n \"org.nixos.specialisation.v1\": {}\n}\n---\nroot=fstab loglevel=4 net.ifnames=0 lsm=landlock,yama,bpf init=/nix/store/6j086slffzwvbhnr13yfd2gdlw540lwy-nixos-system-queue-one-26.11.20260813.0e251e2/init regInfo=/nix/store/s4qy2lpg6d3x99bnhn06qhgznhk7ypad-closure-info/registration console=tty0 console=ttyS0,115200n8 \n", "is_error": false, "read_only": false, "started_after_ms": 52941, "duration_ms": 36 }, { "id": "Bash_0_25220c90", "name": "Bash", "input": { "command": "ls /nix/store/6j086slffzwvbhnr13yfd2gdlw540lwy-nixos-system-queue-one-26.11.20260813.0e251e2/etc/systemd/system/ ; echo ---; systemctl list-unit-files --no-pager | grep -vE '^(proc|sys|dev|run|tmp|var|nix-store)' | head -60", "description": "List units in booted closure" }, "output": "accepted-job-spool.service\nautovt@.service\nbasic.target\nblk-availability.service\nbluetooth.target\nboot-complete.target\ncapsule@.service\ncapsule.slice\nconsole-getty.service\ncontainer-getty@.service\ncontainer-getty@.service.d\ncryptsetup-pre.target\ncryptsetup.target\nctrl-alt-del.target\ndbus-broker.service\ndbus-broker.service.d\ndbus-org.freedesktop.hostname1.service\ndbus-org.freedesktop.import1.service\ndbus-org.freedesktop.locale1.service\ndbus-org.freedesktop.login1.service\ndbus-org.freedesktop.machine1.service\ndbus-org.freedesktop.network1.service\ndbus-org.freedesktop.portable1.service\ndbus-org.freedesktop.resolve1.service\ndbus-org.freedesktop.timedate1.service\ndbus.service\ndbus.service.d\ndbus.socket\ndebug-shell.service\ndefault.target\ndefault.target.wants\ndev-hugepages.mount\ndev-mqueue.mount\nemergency.service\nemergency.target\nexit.target\nfactory-reset.target\nfactory-reset.target.wants\nfinal.target\nfirewall.service\nfirst-boot-complete.target\nfs.target\nfstrim.service\nfstrim.timer\nfstrim.timer.d\ngenerate-shutdown-ramfs.service\ngetty-pre.target\ngetty@.service\ngetty@.service.d\ngetty.target\ngetty.target.d\ngraphical.target\nhalt.target\nhibernate.target\nhybrid-sleep.target\njob-api.service\njob-worker.service\nkexec.target\nkexec.target.wants\nkeys.target\nkmod-static-nodes.service\nkmod-static-nodes.service.d\nlastlog2-import.service\nlastlog2-import.service.d\nlinger-users.service\nlocal-fs-pre.target\nlocal-fs.target\nlocal-fs.target.d\nlocal-fs.target.wants\nlogrotate-checkconf.service\nlogrotate.service\nlogrotate.timer\nlvm-devices-import.path\nlvm-devices-import.service\nmachine.slice\nmachines.target\nmodprobe@.service\nmodprobe@.service.d\nmulti-user.target\nmulti-user.target.d\nmulti-user.target.wants\nnetwork-local-commands.service\nnetwork-online.target\nnetwork-online.target.wants\nnetwork-pre.target\nnetwork.target\nnetwork.target.wants\nnix-daemon.service\nnix-daemon.service.d\nnix-daemon.socket\nnix-daemon.socket.d\nnix-gc.service\nnix-optimise.service\nnscd.service\nnss-lookup.target\nnss-lookup.target.requires\nnss-user-lookup.target\nnss-user-lookup.target.requires\npaths.target\npost-boot.service\npoweroff.target\nprepare-kexec.service\nprinter.target\nqemu-guest-agent.service\nreboot.target\nregister-nix-paths.service\nreload-systemd-vconsole-setup.service\nremote-cryptsetup.target\nremote-fs-pre.target\nremote-fs.target\nremote-fs.target.d\nrescue.service\nrescue.target\nrpcbind.target\nrun-initramfs.mount\nrun-wrappers.mount\nserial-getty@.service\nserial-getty@.service.d\nshutdown.target\nshutdown.target.wants\nsigpwr.target\nsleep-actions.service\nsleep.target\nsleep.target.wants\n-.slice\nslices.target\nsmartcard.target\nsockets.target\nsockets.target.wants\nsoft-reboot.target\nsound.target\nsshd-keygen.service\nsshd.service\nsshd@.service\nsshd-vsock@.service.d\nsshd-vsock.socket.d\nsuid-sgid-wrappers.service\nsuspend.target\nsuspend-then-hibernate.target\nswap.target\nsys-fs-fuse-connections.mount\nsysinit-reactivation.target\nsysinit-reactivation.target.requires\nsysinit.target\nsysinit.target.wants\nsys-kernel-config.mount\nsys-kernel-debug.mount\nsys-kernel-tracing.mount\nsyslog.socket\nsystemd-ask-password-console.path\nsystemd-ask-password-console.service\nsystemd-ask-password@.service\nsystemd-ask-password.socket\nsystemd-ask-password-wall.path\nsystemd-ask-password-wall.service\nsystemd-backlight@.service\nsystemd-backlight@.service.d\nsystemd-bless-boot.service\nsystemd-bootctl@.service\nsystemd-bootctl.socket\nsystemd-boot-random-seed.service\nsystemd-boot-random-seed.service.d\nsystemd-coredump@.service\nsystemd-coredump.socket\nsystemd-creds@.service\nsystemd-creds.socket\nsystemd-exit.service\nsystemd-factory-reset-reboot.service\nsystemd-factory-reset-request.service\nsystemd-factory-reset@.service\nsystemd-factory-reset.socket\nsystemd-fsck-root.service\nsystemd-fsck@.service\nsystemd-fsck@.service.d\nsystemd-growfs-root.service\nsystemd-growfs@.service\nsystemd-halt.service\nsystemd-hibernate-clear.service\nsystemd-hibernate.service\nsystemd-hostnamed.service\nsystemd-hostnamed.service.d\nsystemd-hostnamed.socket\nsystemd-hybrid-sleep.service\nsystemd-importd.service\nsystemd-importd.service.d\nsystemd-importd.socket\nsystemd-journal-catalog-update.service\nsystemd-journalctl@.service\nsystemd-journalctl.socket\nsystemd-journald-audit.socket\nsystemd-journald-audit.socket.d\nsystemd-journald-dev-log.socket\nsystemd-journald.service\nsystemd-journald@.service\nsystemd-journald.service.d\nsystemd-journald@.service.d\nsystemd-journald.service.wants\nsystemd-journald.socket\nsystemd-journald@.socket\nsystemd-journald-sync@.service\nsystemd-journald-varlink@.socket\nsystemd-journal-flush.service\nsystemd-journal-flush.service.d\nsystemd-kexec.service\nsystemd-localed.service\nsystemd-localed.service.d\nsystemd-logind.service\nsystemd-logind.service.d\nsystemd-machined.service\nsystemd-machined.socket\nsystemd-machine-id-commit.service\nsystemd-makefs@.service.d\nsystemd-mkswap@.service.d\nsystemd-modules-load.service\nsystemd-modules-load.service.d\nsystemd-mute-console@.service\nsystemd-mute-console.socket\nsystemd-networkd-persistent-storage.service\nsystemd-networkd-resolve-hook.socket\nsystemd-networkd.service\nsystemd-networkd.service.d\nsystemd-networkd.socket\nsystemd-networkd.socket.d\nsystemd-networkd-varlink-metrics.socket\nsystemd-networkd-varlink-metrics.socket.d\nsystemd-networkd-varlink.socket\nsystemd-networkd-wait-online.service\nsystemd-networkd-wait-online@.service\nsystemd-networkd-wait-online.service.d\nsystemd-networkd-wait-online@.service.d\nsystemd-nspawn@.service\nsystemd-nspawn@.service.d\nsystemd-oomd.service\nsystemd-oomd.service.d\nsystemd-oomd.socket\nsystemd-pcrextend@.service\nsystemd-pcrextend.socket\nsystemd-pcrlock@.service\nsystemd-pcrlock.socket\nsystemd-pcrlogin@.service\nsystemd-portabled.service\nsystemd-poweroff.service\nsystemd-pstore.service\nsystemd-pstore.service.d\nsystemd-random-seed.service\nsystemd-random-seed.service.d\nsystemd-reboot.service\nsystemd-remount-fs.service\nsystemd-remount-fs.service.d\nsystemd-repart@.service\nsystemd-repart.socket\nsystemd-resolved-monitor.socket\nsystemd-resolved.service\nsystemd-resolved.service.d\nsystemd-resolved-varlink.socket\nsystemd-rfkill.service\nsystemd-rfkill.socket\nsystemd-soft-reboot.service\nsystemd-suspend.service\nsystemd-suspend-then-hibernate.service\nsystemd-sysctl.service\nsystemd-sysctl.service.d\nsystemd-timedated.service\nsystemd-timedated.service.d\nsystemd-tmpfiles-clean.service\nsystemd-tmpfiles-clean.timer\nsystemd-tmpfiles-resetup.service\nsystemd-tmpfiles-setup-dev-early.service\nsystemd-tmpfiles-setup-dev.service\nsystemd-tmpfiles-setup.service\nsystemd-tpm2-clear.service\nsystemd-tpm2-setup-early.service\nsystemd-tpm2-setup.service\nsystemd-udevd-control.socket\nsystemd-udevd-kernel.socket\nsystemd-udevd.service\nsystemd-udevd.service.d\nsystemd-udevd-varlink.socket\nsystemd-udev-trigger.service\nsystemd-update-done.service\nsystemd-update-utmp.service\nsystemd-update-utmp.service.d\nsystemd-user-sessions.service\nsystemd-user-sessions.service.d\nsystemd-vconsole-setup.service\nsystem.slice\ntimers.target\ntimers.target.wants\ntime-set.target\ntime-sync.target\ntpm2.target\numount.target\nuser-runtime-dir@.service\nuser-runtime-dir@.service.d\nuser@.service\nuser@.service.d\nuser.slice\nuser.slice.d\nuuidd.service\nuuidd.socket\n---\nUNIT FILE STATE PRESET\n-.mount generated -\nnix-.ro\\x2dstore.mount generated -\nnix-.rw\\x2dstore.mount generated -\nlvm-devices-import.path linked ignored\nsession-12.scope transient -\nsession-8.scope transient -\naccepted-job-spool.service enabled ignored\nautovt@.service alias -\nblk-availability.service linked ignored\ncapsule@.service linked ignored\nconsole-getty.service masked ignored\ncontainer-getty@.service linked ignored\ndbus-broker.service enabled ignored\ndbus-org.freedesktop.hostname1.service alias -\ndbus-org.freedesktop.import1.service alias -\ndbus-org.freedesktop.locale1.service alias -\ndbus-org.freedesktop.login1.service alias -\ndbus-org.freedesktop.machine1.service alias -\ndbus-org.freedesktop.network1.service alias -\ndbus-org.freedesktop.portable1.service alias -\ndbus-org.freedesktop.resolve1.service alias -\ndbus-org.freedesktop.timedate1.service alias -\ndbus.service alias -\ndebug-shell.service linked ignored\nemergency.service linked ignored\nfirewall.service enabled ignored\nfstrim.service linked ignored\ngenerate-shutdown-ramfs.service enabled ignored\ngetty@.service enabled ignored\njob-api.service enabled ignored\njob-worker.service enabled ignored\nkmod-static-nodes.service enabled ignored\nlastlog2-import.service enabled ignored\nlinger-users.service enabled ignored\nlogrotate-checkconf.service enabled ignored\nlogrotate.service linked ignored\nlvm-devices-import.service linked ignored\nmodprobe@.service linked ignored\nnetwork-local-commands.service masked ignored\nnix-daemon.service linked ignored\nnix-gc.service linked ignored\nnix-optimise.service linked ignored\nnscd.service enabled ignored\npost-boot.service enabled ignored\nprepare-kexec.service enabled ignored\nqemu-guest-agent.service linked ignored\nregister-nix-paths.service enabled ignored\nreload-systemd-vconsole-setup.service enabled ignored\nrescue.service linked ignored\nserial-getty@.service linked ignored\nsleep-actions.service enabled ignored\nsshd-keygen.service enabled ignored\nsshd-unix-local@.service alias -\nsshd.service enabled ignored\nsshd@.service linked ignored\nsuid-sgid-wrappers.service enabled ignored\nuser-runtime-dir@.service linked ignored\nuser@.service linked ignored\nuuidd.service linked ignored\n", "is_error": false, "read_only": false, "started_after_ms": 59661, "duration_ms": 6304 }, { "id": "Bash_0_5fd1a969", "name": "Bash", "input": { "command": "S=/nix/store/6j086slffzwvbhnr13yfd2gdlw540lwy-nixos-system-queue-one-26.11.20260813.0e251e2/etc/systemd/system; for u in job-api.service job-worker.service accepted-job-spool.service post-boot.service; do echo \"=== $u ===\"; cat $S/$u; done", "description": "Read pre-provisioned unit files" }, "output": "=== job-api.service ===\n[Unit]\nAfter=network.target accepted-job-spool.service\nConditionPathExists=/etc/replaybook/job-api-start\nDescription=Player-defined job API lifecycle slot\nRequires=accepted-job-spool.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/bin/sh /etc/replaybook/job-api-start\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n=== job-worker.service ===\n[Unit]\nAfter=accepted-job-spool.service\nConditionPathExists=/etc/replaybook/job-worker-start\nDescription=Player-defined job worker lifecycle slot\nRequires=accepted-job-spool.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/bin/sh /etc/replaybook/job-worker-start\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n=== accepted-job-spool.service ===\n[Unit]\nDescription=Preserve opaque jobs accepted before the deployment\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/4xk39cb75p2k2ir5p9q1bh982fqcz9d1-unit-script-accepted-job-spool-start/bin/accepted-job-spool-start \nRemainAfterExit=true\nType=oneshot\n\n[Install]\nWantedBy=multi-user.target\n=== post-boot.service ===\n[Unit]\nDescription=Post-Boot Actions\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nX-RestartIfChanged=false\nExecStart=/nix/store/ir8mnq2xq8pn9csbka6yhrb3vvm6pckw-unit-script-post-boot-start/bin/post-boot-start \nExecStop=/nix/store/zr7nalpvziqwnx8gw4h9br9mr29bshaj-unit-script-post-boot-pre-stop/bin/post-boot-pre-stop\nRemainAfterExit=true\nType=oneshot\n\n[Install]\nWantedBy=multi-user.target\n", "is_error": false, "read_only": false, "started_after_ms": 68811, "duration_ms": 48 }, { "id": "Bash_0_26376f04", "name": "Bash", "input": { "command": "cat /nix/store/4xk39cb75p2k2ir5p9q1bh982fqcz9d1-unit-script-accepted-job-spool-start/bin/accepted-job-spool-start; echo ===; cat /nix/store/ir8mnq2xq8pn9csbka6yhrb3vvm6pckw-unit-script-post-boot-start/bin/post-boot-start; echo ===; ls /etc/replaybook 2>/dev/null; echo ===; systemctl status accepted-job-spool.service post-boot.service --no-pager 2>&1 | head -20", "description": "Read spool and post-boot scripts" }, "output": "#!/nix/store/byi2zpy2bgcf3dr6y0l8m50rmjj8z7q1-bash-5.3p15/bin/bash\nset -e\n\ninstall -d -m 0755 /var/lib/accepted-jobs\n/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python - <<'PY'\nimport json\nfrom pathlib import Path\nfor job, payload in [('accepted-alpha-7d3', 'alpha'), ('accepted-beta-91e', 'beta'), ('accepted-gamma-c42', 'gamma')]:\n path = Path('/var/lib/accepted-jobs') / f'{job}.json'\n if not path.exists():\n path.write_text(json.dumps({'id': job, 'payload': payload, 'status': 'accepted'}))\nPY\n\n\n===\n#!/nix/store/byi2zpy2bgcf3dr6y0l8m50rmjj8z7q1-bash-5.3p15/bin/bash\nset -e\n\n# NixOS post-boot script\n\n# config.powerManagement.bootCommands\n\n\n# config.powerManagement.powerUpCommands\n\n\n\n===\n===\n● accepted-job-spool.service - Preserve opaque jobs accepted before the deployment\n Loaded: loaded (/etc/systemd/system/accepted-job-spool.service; enabled; preset: ignored)\n Active: active (exited) since Sun 2026-09-13 17:40:35 UTC; 1min 25s ago\n Invocation: f4d620866fd8416187ee689da9076f7c\n Process: 501 ExecStart=/nix/store/4xk39cb75p2k2ir5p9q1bh982fqcz9d1-unit-script-accepted-job-spool-start/bin/accepted-job-spool-start (code=exited, status=0/SUCCESS)\n Main PID: 501 (code=exited, status=0/SUCCESS)\n IP: 0B in, 0B out\n IO: 0B read, 0B written\n Mem peak: 12.6M\n CPU: 132ms\n\nSep 13 17:40:33 queue-one systemd[1]: Starting Preserve opaque jobs accepted before the deployment...\nSep 13 17:40:35 queue-one systemd[1]: Finished Preserve opaque jobs accepted before the deployment.\n\n● post-boot.service - Post-Boot Actions\n Loaded: loaded (/etc/systemd/system/post-boot.service; enabled; preset: ignored)\n Active: active (exited) since Sun 2026-09-13 17:40:34 UTC; 1min 26s ago\n Invocation: 8faef7e58a624824a64e4ec42c3ddfc7\n Process: 507 ExecStart=/nix/store/ir8mnq2xq8pn9csbka6yhrb3vvm6pckw-unit-script-post-boot-start/bin/post-boot-start (code=exited, status=0/SUCCESS)\n Main PID: 507 (code=exited, status=0/SUCCESS)\n", "is_error": false, "read_only": false, "started_after_ms": 75276, "duration_ms": 84 }, { "id": "Bash_0_1affeed2", "name": "Bash", "input": { "command": "mkdir -p /etc/replaybook && cat > /etc/replaybook/job-api-start <<'EOF'\n#!/bin/sh\nexec /run/current-system/sw/bin/python3 /opt/jobsvc/api.py\nEOF\ncat > /etc/replaybook/job-worker-start <<'EOF'\n#!/bin/sh\nexec /run/current-system/sw/bin/python3 /opt/jobsvc/worker.py\nEOF\nchmod +x /etc/replaybook/job-api-start /etc/replaybook/job-worker-start\nsystemctl daemon-reload\nsystemctl start job-api.service job-worker.service\nsleep 2\nsystemctl is-active job-api.service job-worker.service", "description": "Install replaybook slot scripts and start services" }, "output": "active\nactive\n", "is_error": false, "read_only": false, "started_after_ms": 84312, "duration_ms": 2756 } ], "timing": { "total_duration_ms": 87069, "model_rounds": [ { "index": 1, "started_after_ms": 0, "duration_ms": 1998, "status": "completed", "usage": { "input_tokens": 2909, "output_tokens": 117, "cache_read_tokens": 0, "cache_creation_tokens": 0, "cost_usd": 0.010482 } }, { "index": 2, "started_after_ms": 2220, "duration_ms": 2342, "status": "completed", "usage": { "input_tokens": 1551, "output_tokens": 141, "cache_read_tokens": 2912, "cache_creation_tokens": 0, "cost_usd": 0.0076416 } }, { "index": 3, "started_after_ms": 4600, "duration_ms": 1816, "status": "completed", "usage": { "input_tokens": 1312, "output_tokens": 106, "cache_read_tokens": 4448, "cache_creation_tokens": 0, "cost_usd": 0.0068604 } }, { "index": 4, "started_after_ms": 6466, "duration_ms": 18919, "status": "completed", "usage": { "input_tokens": 239, "output_tokens": 1862, "cache_read_tokens": 5760, "cache_creation_tokens": 0, "cost_usd": 0.030375 } }, { "index": 5, "started_after_ms": 25389, "duration_ms": 3584, "status": "completed", "usage": { "input_tokens": 7952, "output_tokens": 231, "cache_read_tokens": 0, "cache_creation_tokens": 0, "cost_usd": 0.027321 } }, { "index": 6, "started_after_ms": 28977, "duration_ms": 3638, "status": "completed", "usage": { "input_tokens": 8260, "output_tokens": 271, "cache_read_tokens": 0, "cache_creation_tokens": 0, "cost_usd": 0.028845 } }, { "index": 7, "started_after_ms": 32678, "duration_ms": 5982, "status": "completed", "usage": { "input_tokens": 1651, "output_tokens": 473, "cache_read_tokens": 8256, "cache_creation_tokens": 0, "cost_usd": 0.0145248 } }, { "index": 8, "started_after_ms": 38710, "duration_ms": 7759, "status": "completed", "usage": { "input_tokens": 589, "output_tokens": 699, "cache_read_tokens": 9888, "cache_creation_tokens": 0, "cost_usd": 0.0152184 } }, { "index": 9, "started_after_ms": 46553, "duration_ms": 1971, "status": "completed", "usage": { "input_tokens": 753, "output_tokens": 104, "cache_read_tokens": 10464, "cache_creation_tokens": 0, "cost_usd": 0.0069582 } }, { "index": 10, "started_after_ms": 48573, "duration_ms": 4367, "status": "completed", "usage": { "input_tokens": 261, "output_tokens": 351, "cache_read_tokens": 11200, "cache_creation_tokens": 0, "cost_usd": 0.009408 } }, { "index": 11, "started_after_ms": 52980, "duration_ms": 6680, "status": "completed", "usage": { "input_tokens": 988, "output_tokens": 584, "cache_read_tokens": 11456, "cache_creation_tokens": 0, "cost_usd": 0.0151608 } }, { "index": 12, "started_after_ms": 65976, "duration_ms": 2834, "status": "completed", "usage": { "input_tokens": 3170, "output_tokens": 213, "cache_read_tokens": 12416, "cache_creation_tokens": 0, "cost_usd": 0.0164298 } }, { "index": 13, "started_after_ms": 68862, "duration_ms": 6413, "status": "completed", "usage": { "input_tokens": 2327, "output_tokens": 500, "cache_read_tokens": 15584, "cache_creation_tokens": 0, "cost_usd": 0.0191562 } }, { "index": 14, "started_after_ms": 75363, "duration_ms": 8949, "status": "completed", "usage": { "input_tokens": 1234, "output_tokens": 751, "cache_read_tokens": 17888, "cache_creation_tokens": 0, "cost_usd": 0.0203334 } } ] } }