{ "analyses": { "glm": { "actions": [ { "command": "ls -la /var/lib/failover/ 2>&1; echo \"---\"; ss -tlnp 2>/dev/null | grep -E ':(8080|8081|8082)' ; echo \"---\"; ps aux | grep -iE 'proxy|replica|primary|failover|python|node' | grep -v grep", "description": "Inspect failover state directory, listeners, and processes", "duration_ms": 184, "index": 0, "kind": "validation", "output_excerpt": "total 28\ndrwxr-xr-x 2 root root 4096 Sep 12 02:28 .\ndrwxr-xr-x 9 root root 4096 Sep 12 02:28 ..\n-rw-r--r-- 1 root root 0 Sep 12 02:28 primary.failed\n-rw-r--r-- 1 root root 12288 Sep 12 02:28 records.sqlite3\n-rw-r--r-- 1 root root 8 Sep 12 02:28 replica.role\n-rw-r--r-- 1…", "started_after_ms": 4179, "success": true, "tool_id": "call_4c5ec1f923184838844359e2" }, { "command": "cat /var/lib/failover/replica.role; echo; cat /var/lib/failover/upstream; echo; echo \"---\"; cat /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py; echo \"===\"; cat /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py", "description": "Read role/upstream files and service scripts", "duration_ms": 35, "index": 1, "kind": "discovery", "output_excerpt": "replica\n\n8081\n\n---\nimport http.client\nfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\nUPSTREAM = \"/var/lib/failover/upstream\"\nclass Handler(BaseHTTPRequestHandler):\n def forward(self):\n try:\n with open(UPSTREAM) as source: port = int(sourc…", "started_after_ms": 8498, "success": true, "tool_id": "call_4b1a4f724cfe46a5a3187f4f" }, { "command": "sqlite3 /var/lib/failover/records.sqlite3 \".schema\" \".tables\" \"SELECT * FROM records;\" 2>&1 || python3 -c \"\nimport sqlite3\nc=sqlite3.connect('/var/lib/failover/records.sqlite3')\nprint(c.execute(\\\"select sql from sqlite_master\\\").fetchall())\nfor r in c.execute('select name from sqlite_master where type=\\\"table\\\"'):\n print(r, c.execute('select * from '+r[0]).fetchall())\n\"", "description": "Inspect sqlite records database", "duration_ms": 45, "index": 2, "kind": "mutation", "output_excerpt": "CREATE TABLE records (id TEXT PRIMARY KEY, value TEXT NOT NULL);\nrecords\ncustomer-red-4a7|red-original\ncustomer-blue-8d2|blue-original\ncustomer-green-f31|green-original", "started_after_ms": 8534, "success": true, "tool_id": "call_4727759cef6a4dd9baae6ebc" }, { "command": "systemctl list-units --all 2>/dev/null | grep -iE 'failover|proxy|replica|primary'; echo \"---\"; ls -la /etc/systemd/system/ /etc/init.d/ 2>/dev/null | head -50; echo \"---\"; cat /proc/554/cmdline | tr '\\0' ' '; echo; cat /proc/557/cmdline | tr '\\0' ' '; echo; echo \"---\"; ls /etc/rc.local /etc/crontab /var/spool/cron/ 2>/dev/null; echo \"---\"; ps -p 1 -o comm=", "description": "Check service management (systemd units, init scripts, cron)", "duration_ms": 157, "index": 3, "kind": "discovery", "output_excerpt": "failover-proxy.service loaded active running Public proxy stranded on failed primary\n failover-replica.service loaded active running Healthy read…", "started_after_ms": 20388, "success": true, "tool_id": "call_bc3db4775848402d91c12a7c" }, { "command": "cat /nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service; echo \"===\"; cat /nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service; echo \"===\"; cat /nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service", "description": "Read the three failover systemd unit files", "duration_ms": 36, "index": 4, "kind": "discovery", "output_excerpt": "[Unit]\nAfter=failover-seed.service\nDescription=Public proxy stranded on failed primary\nRequires=failover-seed.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/9…", "started_after_ms": 32340, "success": true, "tool_id": "call_d1b5844eb23b40ca8fa5f6ca" }, { "command": "systemctl is-enabled failover-proxy.service failover-replica.service failover-seed.service 2>&1; echo \"---\"; ls /etc/systemd/system/multi-user.target.wants/ /etc/systemd/system/default.target.wants/ 2>/dev/null | grep -i failover; echo \"---\"; systemctl cat failover-seed.service 2>/dev/null | head -30", "description": "Check enablement of failover services", "duration_ms": 57, "index": 5, "kind": "discovery", "output_excerpt": "enabled\nenabled\nenabled\n---\nfailover-proxy.service\nfailover-replica.service\nfailover-seed.service\n---\n# /etc/systemd/system/failover-seed.service -> /nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service\n[Unit]\nBefore=failover-replica.service…", "started_after_ms": 32376, "success": true, "tool_id": "call_934bc3c329734f98a9136612" }, { "command": "cat /nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start", "description": "Read the failover-seed startup script", "duration_ms": 90, "index": 6, "kind": "discovery", "output_excerpt": "#!/nix/store/byi2zpy2bgcf3dr6y0l8m50rmjj8z7q1-bash-5.3p15/bin/bash\nset -e\n\ninstall -d -m 0755 /var/lib/failover\n[[ -e /var/lib/failover/upstream ]] || printf '8081\\n' > /var/lib/failover/upstream\n[[ -e /var/lib/failover/replica.role ]] || printf 'replica\\n' > /var/lib/failover/re…", "started_after_ms": 36412, "success": true, "tool_id": "call_7052f5dd99a248238eae7a54" }, { "command": "python3 - <<'PY'\nimport os, socket\n\nBASE = \"/var/lib/failover\"\n\ndef atomic_write(path, data):\n \"\"\"Durably write file: temp + fsync + rename + dir fsync (atomic switch).\"\"\"\n tmp = path + \".tmp\"\n fd = os.open(tmp, os.O_WRONLY | os.O_CREAT | os.O_TRUNC, 0o644)\n try:\n os.write(fd, data.encode())\n os.fsync(fd)\n finally:\n os.close(fd)\n os.rename(tmp, path)\n dfd = os.open(BASE, os.O_RDONLY)\n try:\n os.fsync(dfd)\n finally:\n os.close(dfd)\n\n# 0) Preconditions: old primary must be down, replica healthy, failed marker present\ns = socket.socket()\ns.settimeout(1)\nassert s.connect_ex((\"127.0.0.1\", 8081)) != 0, \"PORT 8081 IS LISTENING - ABORT\"\ns.c…", "description": "Fence old primary, promote replica, switch upstream atomically", "duration_ms": 191, "index": 7, "kind": "discovery", "output_excerpt": "preconditions ok: 8081 down, 8082 up, primary.failed present\nfenced: primary.fenced created (fsynced), primary.failed preserved\npromoted: replica.role -> primary\nswitched: upstream -> 8082", "started_after_ms": 51743, "success": true, "tool_id": "call_9dcb8026cb6a41a79d3d512e" }, { "command": "B=http://127.0.0.1:8080\necho \"health: $(curl -s -o /tmp/h -w '%{http_code}' $B/health) body=[$(cat /tmp/h)]\"\necho \"role: $(curl -s -o /tmp/r -w '%{http_code}' $B/role) body=[$(cat /tmp/r)]\"\necho \"PUT new: $(curl -s -o /dev/null -w '%{http_code}' -X PUT --data-binary 'post-failover-write' $B/records/customer-new-991)\"\necho \"GET new: $(curl -s -o /tmp/n -w '%{http_code}' $B/records/customer-new-991) body=[$(cat /tmp/n)]\"\necho \"GET 404: $(curl -s -o /dev/null -w '%{http_code}' $B/records/nonexistent-xyz)\"\nfor id in customer-red-4a7 customer-blue-8d2 customer-green-f31; do\n echo \"GET $id: $(curl -s -o /tmp/o -w '%{http_code}' $B/records/$id) body=[$(cat /tmp/o)]\"\ndone\necho \"PUT overwrite: $(c…", "description": "Verify full API contract via public proxy port 8080", "duration_ms": 268, "index": 8, "kind": "validation", "output_excerpt": "health: 200 body=[ready]\nrole: 200 body=[primary]\nPUT new: 204\nGET new: 200 body=[post-failover-write]\nGET 404: 404\nGET customer-red-4a7: 200 body=[red-original]\nGET customer-blue-8d2: 200 body=[blue-original]\nGET customer-green-f31: 200 body=[green-original]\nPUT overwrite: 204…", "started_after_ms": 58047, "success": true, "tool_id": "call_f44efce98c7d47a686a81a05" } ], "agent": "glm", "analyzer": "aoe-controller/20260816.0.1", "architecture": { "persistent_paths": [ "/etc/crontab", "/etc/init.d", "/etc/rc.local", "/etc/systemd/system", "/etc/systemd/system/default.target.wants", "/etc/systemd/system/multi-user.target.wants", "/var/lib/failover", "/var/lib/failover/records.sqlite3", "/var/lib/failover/replica.role", "/var/lib/failover/upstream" ], "service_units": [ "failover-proxy.service", "failover-replica.service", "failover-seed.service", "nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service", "nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service", "nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service" ], "technologies": [ "Python", "SQLite", "systemd" ] }, "metrics": { "discoveries": 6, "first_mutation_after_ms": 8534, "last_observed_after_ms": 58315, "lifecycle_actions": 0, "mutations": 1, "tool_calls": 9, "tool_errors": 0, "validations": 2 }, "model": "z-ai/glm-5.3", "outcome": "running", "schema_version": 1, "source_sha256": "22fac6a461edeb1b1647c66ab8b460661e3a24c2ff4b6ab9f662077e691790a4", "territory": "failover-three" }, "kimi": { "actions": [ { "command": "ls -la /var/lib/failover/ 2>&1; echo ---; cat /var/lib/failover/upstream 2>&1; echo ---; cat /var/lib/failover/replica.role 2>&1; echo ---; cat /var/lib/failover/primary.failed 2>&1", "description": "Inspect failover state directory", "duration_ms": 91, "index": 0, "kind": "discovery", "output_excerpt": "total 28\ndrwxr-xr-x 2 root root 4096 Sep 12 02:28 .\ndrwxr-xr-x 9 root root 4096 Sep 12 02:28 ..\n-rw-r--r-- 1 root root 0 Sep 12 02:28 primary.failed\n-rw-r--r-- 1 root root 12288 Sep 12 02:28 records.sqlite3\n-rw-r--r-- 1 root root 8 Sep 12 02:28 replica.role\n-rw-r--r-- 1…", "started_after_ms": 2658, "success": true, "tool_id": "Bash:0" }, { "command": "ss -tlnp 2>/dev/null | head -20; echo ---; ps aux | grep -iE 'python|node|failover|proxy|record' | grep -v grep", "description": "Check listening ports and running processes", "duration_ms": 46, "index": 1, "kind": "validation", "output_excerpt": "State Recv-Q Send-Q Local Address:Port Peer Address:PortProcess\nLISTEN 0 4096 0.0.0.0:5355 0.0.0.0:* users:((\"systemd-resolve\",pid=299,fd=14))\nLISTEN 0 5 127.0.0.1:8082 0.0.0.0:* users:((\"python\",pid=554,fd=3))\nLISTEN 0 4096 …", "started_after_ms": 2749, "success": true, "tool_id": "Bash:1" }, { "command": "Read /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py", "description": null, "duration_ms": 3, "index": 2, "kind": "discovery", "output_excerpt": "1\timport http.client\n2\tfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n3\tUPSTREAM = \"/var/lib/failover/upstream\"\n4\tclass Handler(BaseHTTPRequestHandler):\n5\t def forward(self):\n6\t try:\n7\t with open(UPSTREAM) as source: port = int(source.rea…", "started_after_ms": 5555, "success": true, "tool_id": "Read:2" }, { "command": "Read /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py", "description": null, "duration_ms": 3, "index": 3, "kind": "discovery", "output_excerpt": "1\timport sqlite3\n2\tfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n3\tDB = \"/var/lib/failover/records.sqlite3\"\n4\tROLE = \"/var/lib/failover/replica.role\"\n5\tdef role():\n6\t with open(ROLE) as source: return source.read().strip()\n7\tdef database():\n8\t connecti…", "started_after_ms": 5557, "success": true, "tool_id": "Read:3" }, { "command": "sqlite3 /var/lib/failover/records.sqlite3 'SELECT id, value FROM records LIMIT 20;' 2>&1; echo ---; systemctl list-units --all 2>/dev/null | grep -iE 'failover|proxy|replica|record'; echo ---; ls /etc/systemd/system/ 2>/dev/null", "description": "Check existing records and service management", "duration_ms": 111, "index": 4, "kind": "mutation", "output_excerpt": "customer-red-4a7|red-original\ncustomer-blue-8d2|blue-original\ncustomer-green-f31|green-original\n---\n failover-proxy.service loaded active running Public proxy stranded on failed primary\n failover-replica.servic…", "started_after_ms": 9368, "success": true, "tool_id": "Bash:4" }, { "command": "cat /etc/systemd/system/failover-seed.service; echo ===; cat /etc/systemd/system/failover-replica.service; echo ===; cat /etc/systemd/system/failover-proxy.service", "description": "Read failover systemd units", "duration_ms": 159, "index": 5, "kind": "discovery", "output_excerpt": "[Unit]\nBefore=failover-replica.service failover-proxy.service\nDescription=Seed failed-primary topology and replicated state\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/s…", "started_after_ms": 11210, "success": true, "tool_id": "Bash:5" }, { "command": "cat /nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start", "description": "Read the seed script", "duration_ms": 91, "index": 6, "kind": "discovery", "output_excerpt": "#!/nix/store/byi2zpy2bgcf3dr6y0l8m50rmjj8z7q1-bash-5.3p15/bin/bash\nset -e\n\ninstall -d -m 0755 /var/lib/failover\n[[ -e /var/lib/failover/upstream ]] || printf '8081\\n' > /var/lib/failover/upstream\n[[ -e /var/lib/failover/replica.role ]] || printf 'replica\\n' > /var/lib/failover/re…", "started_after_ms": 13311, "success": true, "tool_id": "Bash:6" }, { "command": "set -e\ncd /var/lib/failover\n# Durable fence of the old primary (8081 is not listening; keep it that way)\ntouch primary.fenced\n# Promote replica atomically\nprintf 'primary\\n' > .replica.role.tmp && sync .replica.role.tmp && mv -f .replica.role.tmp replica.role && sync replica.role\n# Switch proxy upstream atomically\nprintf '8082\\n' > .upstream.tmp && sync .upstream.tmp && mv -f .upstream.tmp upstream && sync upstream\nsync\nls -la; echo ---; cat replica.role upstream; echo ---; ss -tln | grep -E '808[012]'", "description": "Fence old primary, promote replica, switch proxy upstream", "duration_ms": 176, "index": 7, "kind": "mutation", "output_excerpt": "total 28\ndrwxr-xr-x 2 root root 4096 Sep 12 02:29 .\ndrwxr-xr-x 9 root root 4096 Sep 12 02:28 ..\n-rw-r--r-- 1 root root 0 Sep 12 02:28 primary.failed\n-rw-r--r-- 1 root root 0 Sep 12 02:29 primary.fenced\n-rw-r--r-- 1 root root 12288 Sep 12 02:28 records.sqlite3\n-rw-r--r--…", "started_after_ms": 16371, "success": true, "tool_id": "Bash:7" } ], "agent": "kimi", "analyzer": "aoe-controller/20260816.0.1", "architecture": { "persistent_paths": [ "/etc/systemd/system", "/etc/systemd/system/failover-proxy.service", "/etc/systemd/system/failover-replica.service", "/etc/systemd/system/failover-seed.service", "/var/lib/failover", "/var/lib/failover/primary.failed", "/var/lib/failover/records.sqlite3", "/var/lib/failover/replica.role", "/var/lib/failover/upstream" ], "service_units": [ "etc/systemd/system/failover-proxy.service", "etc/systemd/system/failover-replica.service", "etc/systemd/system/failover-seed.service" ], "technologies": [ "Python", "SQLite", "systemd" ] }, "metrics": { "discoveries": 5, "first_mutation_after_ms": 9368, "last_observed_after_ms": 16547, "lifecycle_actions": 0, "mutations": 2, "tool_calls": 8, "tool_errors": 0, "validations": 1 }, "model": "moonshotai/kimi-k3", "outcome": "running", "schema_version": 1, "source_sha256": "634a4afc969bffdcb877b3b10c37c36f2df6402a2f1b7f55a903f776f376d079", "territory": "failover-one" }, "minimax": { "actions": [ { "command": "ls -la /var/lib/failover/ 2>&1; echo \"---\"; cat /var/lib/failover/replica.role 2>&1; echo \"---\"; cat /var/lib/failover/upstream 2>&1; echo \"---\"; cat /var/lib/failover/primary.failed 2>&1; echo \"---\"; ls /var/lib/failover/primary.fenced 2>&1", "description": "Inspect failover directory state", "duration_ms": 57, "index": 0, "kind": "discovery", "output_excerpt": "total 28\ndrwxr-xr-x 2 root root 4096 Sep 12 02:28 .\ndrwxr-xr-x 9 root root 4096 Sep 12 02:28 ..\n-rw-r--r-- 1 root root 0 Sep 12 02:28 primary.failed\n-rw-r--r-- 1 root root 12288 Sep 12 02:28 records.sqlite3\n-rw-r--r-- 1 root root 8 Sep 12 02:28 replica.role\n-rw-r--r-- 1…", "started_after_ms": 24390, "success": false, "tool_id": "chatcmpl-tool-9a8b736b5fec31f7" }, { "command": "ss -ltnp 2>&1 | head -50; echo \"---\"; ps auxf 2>&1 | head -60", "description": "Check listening ports and processes", "duration_ms": 47, "index": 1, "kind": "validation", "output_excerpt": "State Recv-Q Send-Q Local Address:Port Peer Address:PortProcess\nLISTEN 0 4096 127.0.0.53%lo:53 0.0.0.0:* users:((\"systemd-resolve\",pid=297,fd=23))\nLISTEN 0 128 127.0.0.1:18002 0.0.0.0:* users:((\"sshd-session\",pid=620,fd=10))\nLISTEN 0 5…", "started_after_ms": 24447, "success": true, "tool_id": "chatcmpl-tool-8e44588600d698f2" } ], "agent": "minimax", "analyzer": "aoe-controller/20260816.0.1", "architecture": { "persistent_paths": [ "/var/lib/failover", "/var/lib/failover/primary.failed", "/var/lib/failover/primary.fenced", "/var/lib/failover/replica.role", "/var/lib/failover/upstream" ], "service_units": [], "technologies": [ "Python", "SQLite" ] }, "metrics": { "discoveries": 1, "first_mutation_after_ms": null, "last_observed_after_ms": 24494, "lifecycle_actions": 0, "mutations": 0, "tool_calls": 2, "tool_errors": 1, "validations": 1 }, "model": "minimax/minimax-m3", "outcome": "running", "schema_version": 1, "source_sha256": "93b428d07c4ee8e189b993fe04aaf09621fac1b397767fe0dd8fc6308acaf5d0", "territory": "failover-two" } }, "arena": { "agents": [ { "adapter": "claux", "budget": { "max_cost_microusd": null, "resource_units": 900 }, "id": "kimi", "model": "moonshotai/kimi-k3", "reasoning_effort": "high", "territory": "failover-one" }, { "adapter": "claux", "budget": { "max_cost_microusd": null, "resource_units": 900 }, "id": "glm", "model": "z-ai/glm-5.3", "reasoning_effort": "high", "territory": "failover-three" }, { "adapter": "claux", "budget": { "max_cost_microusd": null, "resource_units": 900 }, "id": "minimax", "model": "minimax/minimax-m3", "reasoning_effort": "high", "territory": "failover-two" } ], "arena": { "category": "stateful-recovery", "display_name": "Stateful Primary Failover", "id": "primary-failover", "mode": "build_race" }, "build": { "completion_milestone": "host-reboot", "milestones": [ { "depends_on": [], "display_name": "Failed Primary Preserved", "id": "failed-primary-preserved", "operation": "observe", "points": 5, "required": true, "timeout_seconds": 5, "verifier": "verify/incident-confirmed.sh" }, { "depends_on": [ "failed-primary-preserved" ], "display_name": "Existing Reads Restored", "id": "reads-restored", "operation": "observe", "points": 20, "required": true, "timeout_seconds": 10, "verifier": "verify/reads-restored.sh" }, { "depends_on": [ "reads-restored" ], "display_name": "Old Primary Fenced", "id": "old-primary-fenced", "operation": "observe", "points": 20, "required": true, "timeout_seconds": 10, "verifier": "verify/old-primary-fenced.sh" }, { "depends_on": [ "old-primary-fenced" ], "display_name": "Writes Restored", "id": "writes-restored", "operation": "observe", "points": 25, "required": true, "timeout_seconds": 15, "verifier": "verify/writes-restored.sh" }, { "depends_on": [ "writes-restored" ], "display_name": "Topology Restart", "id": "service-restart", "operation": "observe", "points": 15, "required": true, "timeout_seconds": 20, "verifier": "verify/service-restart.sh" }, { "depends_on": [ "service-restart" ], "display_name": "Host Reboot", "id": "host-reboot", "operation": "host_reboot", "points": 15, "required": true, "timeout_seconds": 40, "verifier": "verify/host-reboot.sh" } ], "stop_on_first_durable": true }, "classes": [ { "display_name": "Failover Engineer", "id": "failover-engineer", "resources": { "disk_mib": 2048, "memory_mib": 768, "vcpus": 1 }, "strengths": [], "weaknesses": [] } ], "fog_of_war": null, "network": { "allow_public_internet": false, "cidr": "10.81.0.0/24" }, "rules": { "duration_seconds": 900, "healthy_resources_per_tick": 0, "minimum_territories": 3, "tick_ms": 1000 }, "schema_version": 1, "territories": [ { "class": "failover-engineer", "id": "failover-one", "nixos_config": "./arenas/primary-failover#nixosConfigurations.failover-one.config.system.build.vm", "service": { "expected_body": "ready", "expected_status": 200, "health": { "consecutive_failures": 3, "poll_interval_ms": 1000, "recovery_window_seconds": 60 }, "path": "/health", "port": 8080 } }, { "class": "failover-engineer", "id": "failover-two", "nixos_config": "./arenas/primary-failover#nixosConfigurations.failover-two.config.system.build.vm", "service": { "expected_body": "ready", "expected_status": 200, "health": { "consecutive_failures": 3, "poll_interval_ms": 1000, "recovery_window_seconds": 60 }, "path": "/health", "port": 8080 } }, { "class": "failover-engineer", "id": "failover-three", "nixos_config": "./arenas/primary-failover#nixosConfigurations.failover-three.config.system.build.vm", "service": { 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