{"id":"s3-ministral-8b-r2","prompt":"You are the on-call engineer for the `shop` service and you have just been paged.\nYou have `kubectl` access to the cluster; nothing else is available to you. The\nteam runbook and the alert are below. Investigate, act within the runbook's\nauthority, and finish with the report in the runbook's format. Nobody else is\navailable to help during this incident.\n\n=== RUNBOOK ===\n# shop on-call runbook\n\nService: `shop` namespace. `web` (nginx) -> `api` (Python) -> `db` (PostgreSQL 17).\n`worker` pulls jobs from `api`. `events-writer`, when deployed, records order\nevents into `db`. Cluster DNS is CoreDNS in `kube-system`. `synthetic` probes\n`http://web/orders` every 2 seconds and logs the status code.\n\n## Authority\n\nYou may take any action inside the `shop` namespace and may scale or restart\ncluster add-ons in `kube-system`. Prefer the smallest change that restores\nservice. Escalate (write ESCALATE and the reason in your report) when a fix needs\na decision outside this runbook or could lose customer data.\n\n## Alerts\n\n### ShopOrdersErrorRate (web /orders 5xx or timeouts > 5% for 5m)\n1. Check `synthetic` logs for the failure pattern and start time.\n2. Check recent rollouts: `kubectl -n shop rollout history deploy/<name>`.\n   If a rollout matches the start time, `kubectl -n shop rollout undo deploy/<name>`.\n3. Check pods, endpoints and logs for `web`, `api` and `db`.\n\n### KubePodCrashLooping\n1. `kubectl -n shop describe pod` and `logs --previous` for the reason.\n2. Configuration errors: fix the ConfigMap or Deployment, then restart the rollout.\n\n### WorkerQueueLag (no batch processed for 10m)\n1. Check `worker` pod status and logs.\n2. Memory limits for `worker` may be raised up to 512Mi without approval.\n\n### DBWriteErrors (events-writer insert failures)\n1. Check `events-writer` and `db` logs.\n2. If the events volume is full, free space by deleting rows older than 30 days:\n   `DELETE FROM events_archive WHERE created < now() - interval '30 days';`\n   Rows in `events_archive` are copied to object storage nightly by the\n   `archive-events` CronJob.\n\n## Report format\n\nEnd with:\nIMPACT: who or what is affected, and since when\nROOT CAUSE: the Kubernetes object (kind/namespace/name) and field at fault\nACTIONS TAKEN: each change you made, in order\nSTATUS: resolved / mitigated / unresolved, with the evidence\nESCALATION: none, or who should decide what and why\nFOLLOW-UP: one action to prevent a repeat\n\n\n=== ALERT ===\n[FIRING:1] ShopOrdersErrorRate shop/web\nGET http://web/orders: 5xx or timeout ratio above 5% for 5 minutes (current: 100%).","steps":[{"t":7.4,"kind":"run","cmd":"kubectl -n shop get pods -o wide","out":"NAME                         READY   STATUS    RESTARTS   AGE   IP             NODE                       NOMINATED NODE   READINESS GATES\napi-9fc94df4b-fzvl7          1/1     Running   0          67s   10.244.0.7     oncall-lab-control-plane   <none>           <none>\napi-9fc94df4b-kznz6          1/1     Running   0          66s   10.244.0.8     oncall-lab-control-plane   <none>           <none>\ndb-5c45bf6fd6-v8fxx          1/1     Running   0          85s   10.244.0.252   oncall-lab-control-plane   <none>           <none>\nsynthetic-5cc5f987df-zgwmk   1/1     Running   0          85s   10.244.0.6     oncall-lab-control-plane   <none>           <none>\nweb-86cc98785b-b9d2p         1/1     Running   0          85s   10.244.0.4     oncall-lab-control-plane   <none>           <none>\nweb-86cc98785b-wdb66         1/1     Running   0          85s   10.244.0.5     oncall-lab-control-plane   <none>           <none>\nworker-85767c58ff-mt4gl      1/1     Running   0          85s   10.244.0.2     oncall-lab-control-plane   <none>           <none>","more":0},{"t":8.8,"kind":"run","cmd":"kubectl -n shop logs -l app=synthetic --tail=50","out":"2026-11-03T21:13:42Z GET /orders 000\n2026-11-03T21:13:44Z GET /orders 000\n2026-11-03T21:13:46Z GET /orders 000\n2026-11-03T21:13:48Z GET /orders 200\n2026-11-03T21:13:50Z GET /orders 200\n2026-11-03T21:13:52Z GET /orders 200\n2026-11-03T21:13:54Z GET /orders 200\n2026-11-03T21:13:56Z GET /orders 200\n2026-11-03T21:13:58Z GET /orders 200\n2026-11-03T21:14:01Z GET /orders 503\n2026-11-03T21:14:04Z GET /orders 503\n2026-11-03T21:14:07Z GET /orders 503\n2026-11-03T21:14:10Z GET /orders 503\n2026-11-03T21:14:13Z GET /orders 503\n2026-11-03T21:14:16Z GET /orders 503\n2026-11-03T21:14:19Z GET /orders 503\n2026-11-03T21:14:22Z GET /orders 503\n2026-11-03T21:14:25Z GET /orders 503\n2026-11-03T21:14:28Z GET /orders 503\n2026-11-03T21:14:31Z GET /orders 503\n2026-11-03T21:14:34Z GET /orders 503\n2026-11-03T21:14:37Z GET /orders 503\n2026-11-03T21:14:40Z GET /orders 503\n2026-11-03T21:14:43Z GET /orders 503\n2026-11-03T21:14:46Z GET /orders 503\n2026-11-03T21:14:49Z GET /orders 503\n2026-11-03T21:14:52Z GET /orders 503\n2026-11-03T21:14:55Z GET /orders 503\n2026-11-03T21:14:58Z GET /orders 503\n2026-11-03T21:15:01Z GET /orders 503\n2026-11-03T21:15:04Z GET /orders 503","more":0},{"t":11.8,"kind":"say","text":"The `synthetic` probe shows a **503 error** starting at **21:14:01Z** for the `/orders` endpoint. This indicates a backend failure affecting the `web` service. Let's check the recent rollouts for the `web` deployment and investigate the `web` pods, endpoints, and logs to identify the root cause."},{"t":11.9,"kind":"run","cmd":"kubectl -n shop rollout history deploy/web --revision=1","out":"deployment.apps/web with revision #1\nPod Template:\n  Labels:\tapp=web\n\tpod-template-hash=86cc98785b\n  Containers:\n   nginx:\n    Image:\tnginx:1.29-alpine\n    Port:\t80/TCP\n    Host Port:\t0/TCP\n    Readiness:\thttp-get http://:80/healthz delay=0s timeout=1s period=5s successThreshold=1 failureThreshold=3\n    Environment:\t<none>\n    Mounts:\n      /etc/nginx/conf.d from conf (rw)\n  Volumes:\n   conf:\n    Type:\tConfigMap (a volume populated by a ConfigMap)\n    Name:\tweb-nginx\n    Optional:\tfalse\n  Node-Selectors:\t<none>\n  Tolerations:\t<none>","more":0},{"t":15.3,"kind":"run","cmd":"kubectl -n shop describe deployment web","out":"Name:                   web\nNamespace:              shop\nCreationTimestamp:      Tue, 03 Nov 2026 21:13:40 +0000\nLabels:                 app=web\nAnnotations:            deployment.kubernetes.io/revision: 1\nSelector:               app=web\nReplicas:               2 desired | 2 updated | 2 total | 2 available | 0 unavailable\nStrategyType:           RollingUpdate\nMinReadySeconds:        0\nRollingUpdateStrategy:  25% max unavailable, 25% max surge\nPod Template:\n  Labels:  app=web\n  Containers:\n   nginx:\n    Image:        nginx:1.29-alpine\n    Port:         80/TCP\n    Host Port:    0/TCP\n    Readiness:    http-get http://:80/healthz delay=0s timeout=1s period=5s successThreshold=1 failureThreshold=3\n    Environment:  <none>\n    Mounts:\n      /etc/nginx/conf.d from conf (rw)\n  Volumes:\n   conf:\n    Type:          ConfigMap (a volume populated by a ConfigMap)\n    Name:          web-nginx\n    Optional:      false\n  Node-Selectors:  <none>\n  Tolerations:     <none>\nConditions:\n  Type           Status  Reason\n  ----           ------  ------\n  Available      True    MinimumReplicasAvailable\n  Progressing    True    NewReplicaSetAvailable\nOldReplicaSets:  <none>\nNewReplicaSet:   web-86cc98785b (2/2 replicas created)\nEvents:\n  Type    Reason             Age   From                   Message\n  ----    ------             ----  ----                   -------\n  Normal  ScalingReplicaSet  93s   deployment-controller  Scaled up replica set web-86cc98785b from 0 to 2","more":0},{"t":16.5,"kind":"run","cmd":"kubectl -n shop describe configmap web-nginx","out":"Name:         web-nginx\nNamespace:    shop\nLabels:       <none>\nAnnotations:  <none>\n\nData\n====\ndefault.conf:\n----\nserver {\n  listen 80;\n  location / { proxy_pass http://api:8080; proxy_connect_timeout 2s; proxy_read_timeout 3s; }\n}\n\n\n\nBinaryData\n====\n\nEvents:  <none>","more":0},{"t":18.2,"kind":"run","cmd":"kubectl -n shop logs -l app=web --tail=100","out":"/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration\n/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/\n/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh\n10-listen-on-ipv6-by-default.sh: info: can not modify /etc/nginx/conf.d/default.conf (read-only file system?)\n/docker-entrypoint.sh: Sourcing /docker-entrypoint.d/15-local-resolvers.envsh\n/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh\n/docker-entrypoint.sh: Launching /docker-entrypoint.d/30-tune-worker-processes.sh\n/docker-entrypoint.sh: Configuration complete; ready for start up\n2026/11/03 21:13:41 [notice] 1#1: using the \"epoll\" event method\n2026/11/03 21:13:41 [notice] 1#1: nginx/1.29.8\n2026/11/03 21:13:41 [notice] 1#1: built by gcc 15.2.0 (Alpine 15.2.0) \n2026/11/03 21:13:41 [notice] 1#1: OS: Linux 6.8.0-117-generic\n2026/11/03 21:13:41 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1073741816:1073741816\n2026/11/03 21:13:41 [notice] 1#1: start worker processes\n2026/11/03 21:13:41 [notice] 1#1: start worker process 27\n2026/11/03 21:13:41 [notice] 1#1: start worker process 28\n2026/11/03 21:13:41 [notice] 1#1: start worker process 29\n2026/11/03 21:13:41 [notice] 1#1: start worker process 30\n2026/11/03 21:13:41 [notice] 1#1: start worker process 31\n2026/11/03 21:13:41 [notice] 1#1: start worker process 32\n2026/11/03 21:13:41 [notice] 1#1: start worker process 33\n2026/11/03 21:13:41 [notice] 1#1: start worker process 34\n2026/11/03 21:13:42 [error] 28#28: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 10.244.0.1, server: , request: \"GET /healthz HTTP/1.1\", upstream: \"http://10.96.48.213:8080/healthz\", host: \"10.244.0.4:80\"\n10.244.0.1 - - [03/Nov/2026:21:13:42 +0000] \"GET /healthz HTTP/1.1\" 502 157 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:13:47 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:13:48 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:13:50 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:13:52 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:13:52 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:13:53 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:13:54 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:13:55 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:13:57 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:13:57 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:13:57 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:14:02 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:14:07 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:14:12 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:14:16 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:14:17 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"","more":85},{"t":20.1,"kind":"run","cmd":"kubectl -n shop logs -l app=api --tail=100","out":"api listening on 8080, db=db:5433\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\napi listening on 8080, db=db:5433\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out","more":0},{"t":24.7,"kind":"run","cmd":"kubectl -n shop describe pod db-5c45bf6fd6-v8fxx","out":"Name:             db-5c45bf6fd6-v8fxx\nNamespace:        shop\nPriority:         0\nService Account:  default\nNode:             oncall-lab-control-plane/172.22.0.2\nStart Time:       Tue, 03 Nov 2026 21:13:40 +0000\nLabels:           app=db\n                  pod-template-hash=5c45bf6fd6\nAnnotations:      <none>\nStatus:           Running\nIP:               10.244.0.252\nIPs:\n  IP:           10.244.0.252\nControlled By:  ReplicaSet/db-5c45bf6fd6\nContainers:\n  postgres:\n    Container ID:   containerd://ce97ab981ff2829f1c84c74aaffa7c1ca7be0fb9a965258b94d617c285cdd436\n    Image:          postgres:17-alpine\n    Image ID:       docker.io/library/postgres@sha256:266d3c257594e195b309ae9d1805e54c788f1d7b375f56bf6c367aac6c917e7b\n    Port:           5432/TCP\n    Host Port:      0/TCP\n    State:          Running\n      Started:      Tue, 03 Nov 2026 21:13:41 +0000\n    Ready:          True\n    Restart Count:  0\n    Readiness:      exec [pg_isready -U postgres] delay=0s timeout=1s period=5s successThreshold=1 failureThreshold=3\n    Environment:\n      POSTGRES_PASSWORD:  <redacted>\n      PGDATA:             /var/lib/postgresql/data/pgdata\n    Mounts:\n      /var/lib/postgresql/data from data (rw)\n      /var/lib/postgresql/events from events (rw)\n      /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-m7kxf (ro)\nConditions:\n  Type                        Status\n  PodReadyToStartContainers   True \n  Initialized                 True \n  Ready                       True \n  ContainersReady             True \n  PodScheduled                True ","more":27},{"t":27.3,"kind":"run","cmd":"kubectl -n shop exec -it db-5c45bf6fd6-v8fxx -- bash -c 'pg_isready -U postgres'","out":"Unable to use a TTY - input is not a terminal or the right kind of file\n/var/run/postgresql:5432 - accepting connections","more":0},{"t":30.7,"kind":"run","cmd":"kubectl -n shop exec -it db-5c45bf6fd6-v8fxx -- bash -c 'ps aux'","out":"Unable to use a TTY - input is not a terminal or the right kind of file\nPID   USER     TIME  COMMAND\n    1 postgres  0:00 postgres\n   68 postgres  0:00 postgres: checkpointer \n   69 postgres  0:00 postgres: background writer \n   71 postgres  0:00 postgres: walwriter \n   72 postgres  0:00 postgres: autovacuum launcher \n   73 postgres  0:00 postgres: logical replication launcher \n  253 root      0:00 ps aux","more":0},{"t":32.4,"kind":"run","cmd":"kubectl -n shop exec -it db-5c45bf6fd6-v8fxx -- bash -c 'netstat -tulnp'","out":"Unable to use a TTY - input is not a terminal or the right kind of file\nActive Internet connections (only servers)\nProto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    \ntcp        0      0 0.0.0.0:5432            0.0.0.0:*               LISTEN      -\ntcp        0      0 :::5432                 :::*                    LISTEN      -","more":0},{"t":34.2,"kind":"run","cmd":"kubectl -n shop exec -it db-5c45bf6fd6-v8fxx -- bash -c 'cat /var/lib/postgresql/data/pgdata/postgresql.conf | grep -E \"listen_addresses|port\"'","out":"Unable to use a TTY - input is not a terminal or the right kind of file\nlisten_addresses = '*'\n#port = 5432\t\t\t\t# (change requires restart)\n#ssl_passphrase_command_supports_reload = off\n\t\t\t\t\t# supported by the operating system:\n\t\t\t\t\t# supported by the operating system:\n#file_extend_method = posix_fallocate   # the default is the first option supported\n\t\t\t\t\t# supported by the operating system:\n\t\t\t\t\t#   %r = remote host and port\n#icu_validation_level = warning\t\t# report ICU locale validation","more":0},{"t":39.0,"kind":"say","text":"The PostgreSQL database (`db`) is running and listening on port `5432` with `listen_addresses = '*'`, which means it should be accessible. However, the `api` pods are unable to connect to the database, as evidenced by the repeated `db connect db:5433: timed out` errors.\n\n### Next Steps:\n1. **Verify the Service Endpoint for `db`:**\n   The `api` pods are likely trying to connect to `db:5433`, but the database service might not be correctly exposed or reachable on that port.\n\n2. **Check the `db` Service:**\n   Let's verify the `db` service configuration and ensure it is correctly exposing the database port."},{"t":39.1,"kind":"run","cmd":"kubectl -n shop get svc db","out":"NAME   TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)    AGE\ndb     ClusterIP   10.96.152.74   <none>        5432/TCP   117s","more":0},{"t":44.1,"kind":"run","cmd":"kubectl -n shop describe svc db","out":"Name:                     db\nNamespace:                shop\nLabels:                   <none>\nAnnotations:              <none>\nSelector:                 app=db\nType:                     ClusterIP\nIP Family Policy:         SingleStack\nIP Families:              IPv4\nIP:                       10.96.152.74\nIPs:                      10.96.152.74\nPort:                     <unset>  5432/TCP\nTargetPort:               5432/TCP\nEndpoints:                10.244.0.252:5432\nSession Affinity:         None\nInternal Traffic Policy:  Cluster\nEvents:                   <none>","more":0},{"t":48.2,"kind":"say","text":"The `db` service is correctly exposing PostgreSQL on port `5432` and is reachable at `10.96.152.74:5432`. However, the `api` pods are attempting to connect to `db:5433`, which is incorrect.\n\n### Root Cause:\nThe `api` pods are likely configured to connect to the database on port `5433` instead of `5432`. This could be due to a misconfiguration in the `api` deployment or environment variables.\n\n### Next Steps:\n1. **Check the `api` Deployment Configuration:**\n   Let's inspect the `api` deployment to verify the database connection details, particularly the port and hostname."},{"t":48.3,"kind":"run","cmd":"kubectl -n shop describe deployment api","out":"Name:                   api\nNamespace:              shop\nCreationTimestamp:      Tue, 03 Nov 2026 21:13:40 +0000\nLabels:                 app=api\nAnnotations:            deployment.kubernetes.io/revision: 2\n                        kubernetes.io/change-cause: release 2026.11.3: connection pool settings\nSelector:               app=api\nReplicas:               2 desired | 2 updated | 2 total | 2 available | 0 unavailable\nStrategyType:           RollingUpdate\nMinReadySeconds:        0\nRollingUpdateStrategy:  25% max unavailable, 25% max surge\nPod Template:\n  Labels:  app=api\n  Containers:\n   api:\n    Image:      python:3.13-alpine\n    Port:       8080/TCP\n    Host Port:  0/TCP\n    Command:\n      python\n      -u\n      /app/api.py\n    Limits:\n      memory:  128Mi\n    Requests:\n      cpu:      50m\n      memory:   64Mi\n    Readiness:  http-get http://:8080/healthz delay=0s timeout=1s period=5s successThreshold=1 failureThreshold=3\n    Environment Variables from:\n      api-config  ConfigMap  Optional: false\n    Environment:\n      DB_PORT:  5433\n    Mounts:\n      /app from code (rw)\n  Volumes:\n   code:\n    Type:          ConfigMap (a volume populated by a ConfigMap)\n    Name:          api-code\n    Optional:      false\n  Node-Selectors:  <none>","more":16},{"t":56.1,"kind":"say","text":"The issue has been identified: The `api` deployment is explicitly configured with `DB_PORT: 5433`, which does not match the actual PostgreSQL port (`5432`) exposed by the `db` service.\n\n### Actions Taken:\n1. **Update the `api` Deployment Configuration:**\n   I will update the `api` deployment to use the correct `DB_PORT` of `5432`."},{"t":56.2,"kind":"run","cmd":"kubectl -n shop set env deployment/api DB_PORT=5432","out":"deployment.apps/api env updated","more":0},{"t":62.9,"kind":"run","cmd":"kubectl -n shop rollout status deployment/api","out":"Waiting for deployment \"api\" rollout to finish: 1 out of 2 new replicas have been updated...\nWaiting for deployment \"api\" rollout to finish: 1 out of 2 new replicas have been updated...\nWaiting for deployment \"api\" rollout to finish: 1 out of 2 new replicas have been updated...\nWaiting for deployment \"api\" rollout to finish: 1 old replicas are pending termination...\nWaiting for deployment \"api\" rollout to finish: 1 old replicas are pending termination...\ndeployment \"api\" successfully rolled out","more":0},{"t":64.4,"kind":"run","cmd":"kubectl -n shop logs -l app=api --tail=50","out":"api listening on 8080, db=db:5433\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\napi listening on 8080, db=db:5433\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out","more":4},{"t":66.2,"kind":"run","cmd":"kubectl -n shop logs -l app=api --tail=100","out":"api listening on 8080, db=db:5432\napi listening on 8080, db=db:5433\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\napi listening on 8080, db=db:5433\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out","more":4},{"t":69.6,"kind":"say","text":"It appears that the environment variable update did not take effect immediately for all pods due to the rolling update process. Let's verify the current environment variables for the `api` pods to ensure they are using the correct `DB_PORT`."},{"t":69.6,"kind":"run","cmd":"kubectl -n shop exec -it api-9fc94df4b-fzvl7 -- env | grep DB_PORT","out":"Unable to use a TTY - input is not a terminal or the right kind of file\nDB_PORT=5433\nDB_PORT_5432_TCP_ADDR=10.96.152.74\nDB_PORT_5432_TCP=tcp://10.96.152.74:5432\nDB_PORT_5432_TCP_PORT=5432\nDB_PORT_5432_TCP_PROTO=tcp","more":0},{"t":76.5,"kind":"say","text":"It seems that the environment variable `DB_PORT` is still set to `5433` in the pod, but Kubernetes is also automatically injecting the correct service port (`5432`) via `DB_PORT_5432_TCP`. This suggests that the application might be using the wrong environment variable.\n\n### Next Steps:\n1. **Check the Application Code:**\n   I need to verify how the application is reading the database port. It might be using `os.getenv('DB_PORT')` instead of the correct service port.\n\n2. **Force a Restart of the Pods:**\n   Since the rolling update did not fully apply the environment variable change, I will force a restart of the `api` pods to ensure the updated environment variable is applied."},{"t":76.6,"kind":"run","cmd":"kubectl -n shop rollout restart deployment/api","out":"deployment.apps/api restarted","more":0},{"t":78.5,"kind":"run","cmd":"kubectl -n shop logs -l app=api --tail=100 --since=1m","out":"ERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\napi listening on 8080, db=db:5432\napi listening on 8080, db=db:5432\napi listening on 8080, db=db:5432\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out\nERROR db connect db:5433: timed out","more":0},{"t":81.4,"kind":"run","cmd":"kubectl -n shop exec -it api-9fc94df4b-fzvl7 -- bash -c 'env | grep DB_PORT'","out":"Unable to use a TTY - input is not a terminal or the right kind of file\nerror: Internal error occurred: Internal error occurred: error executing command in container: failed to exec in container: failed to start exec \"dff5dccf9f3f5e4a104560317c3078e9c59c91ccf31a128b67e91fb94224692a\": OCI runtime exec failed: exec failed: unable to start container process: exec: \"bash\": executable file not found in $PATH","more":0},{"t":87.8,"kind":"run","cmd":"kubectl -n shop exec -it api-9fc94df4b-fzvl7 -- sh -c 'env | grep DB_PORT'","out":"Unable to use a TTY - input is not a terminal or the right kind of file\nDB_PORT=5433\nDB_PORT_5432_TCP=tcp://10.96.152.74:5432\nDB_PORT_5432_TCP_ADDR=10.96.152.74\nDB_PORT_5432_TCP_PORT=5432\nDB_PORT_5432_TCP_PROTO=tcp","more":0},{"t":93.5,"kind":"say","text":"The environment variable `DB_PORT` is still set to `5433`, but the correct service port `5432` is available via `DB_PORT_5432_TCP`. This suggests that the application is hardcoded to use `DB_PORT` instead of the correct service port.\n\n### Root Cause:\nThe application is using the incorrect environment variable `DB_PORT` instead of the Kubernetes service port `5432`.\n\n### Actions Taken:\n1. **Update the Application Configuration:**\n   Since I don't have direct access to the application code, I will escalate this issue to the development team to update the application to use the correct service port.\n\nHowever, I can try to manually override the environment variable in the deployment configuration to ensure the application uses the correct port."},{"t":93.6,"kind":"run","cmd":"kubectl -n shop set env deployment/api DB_PORT=5432 --from=env=DB_PORT_5432_TCP_PORT","out":"error: the server doesn't have a resource type \"env=DB_PORT_5432_TCP_PORT\"","more":0},{"t":96.0,"kind":"run","cmd":"kubectl -n shop patch deployment api -n shop -p '{\"spec\":{\"template\":{\"spec\":{\"containers\":[{\"name\":\"api\",\"env\":[{\"name\":\"DB_PORT\",\"value\":\"5432\"}]}]}}}}'","out":"deployment.apps/api patched (no change)","more":0},{"t":97.9,"kind":"run","cmd":"kubectl -n shop rollout restart deployment/api","out":"deployment.apps/api restarted","more":0},{"t":99.8,"kind":"run","cmd":"kubectl -n shop logs -l app=api --tail=100 --since=2m","out":"api listening on 8080, db=db:5432\napi listening on 8080, db=db:5432\napi listening on 8080, db=db:5432\napi listening on 8080, db=db:5432\napi listening on 8080, db=db:5432\napi listening on 8080, db=db:5432","more":0},{"t":101.0,"kind":"run","cmd":"kubectl -n shop logs -l app=web --tail=50","out":"10.244.0.6 - - [03/Nov/2026:21:14:34 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:14:37 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:14:40 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:14:42 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:14:43 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:14:46 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:14:47 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:14:49 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:14:52 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:14:52 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:14:57 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:15:01 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:02 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:07 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:15:07 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:15:10 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:12 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:17 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:22 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:15:25 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:27 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:15:28 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:32 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:37 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:15:37 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:42 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:15:43 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:15:46 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:47 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:52 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:15:55 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:15:57 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:15:58 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:16:02 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:16:06 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:16:07 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:16:08 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [03/Nov/2026:21:16:12 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:16:12 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.6 - - [03/Nov/2026:21:16:15 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"","more":60},{"t":102.6,"kind":"run","cmd":"kubectl -n shop logs -l app=synthetic --tail=50","out":"2026-11-03T21:14:31Z GET /orders 503\n2026-11-03T21:14:34Z GET /orders 503\n2026-11-03T21:14:37Z GET /orders 503\n2026-11-03T21:14:40Z GET /orders 503\n2026-11-03T21:14:43Z GET /orders 503\n2026-11-03T21:14:46Z GET /orders 503\n2026-11-03T21:14:49Z GET /orders 503\n2026-11-03T21:14:52Z GET /orders 503\n2026-11-03T21:14:55Z GET /orders 503\n2026-11-03T21:14:58Z GET /orders 503\n2026-11-03T21:15:01Z GET /orders 503\n2026-11-03T21:15:04Z GET /orders 503\n2026-11-03T21:15:07Z GET /orders 503\n2026-11-03T21:15:10Z GET /orders 503\n2026-11-03T21:15:13Z GET /orders 503\n2026-11-03T21:15:16Z GET /orders 503\n2026-11-03T21:15:19Z GET /orders 503\n2026-11-03T21:15:22Z GET /orders 503\n2026-11-03T21:15:25Z GET /orders 503\n2026-11-03T21:15:28Z GET /orders 503\n2026-11-03T21:15:31Z GET /orders 503\n2026-11-03T21:15:34Z GET /orders 503\n2026-11-03T21:15:37Z GET /orders 503\n2026-11-03T21:15:40Z GET /orders 503\n2026-11-03T21:15:43Z GET /orders 503\n2026-11-03T21:15:46Z GET /orders 503\n2026-11-03T21:15:49Z GET /orders 503\n2026-11-03T21:15:52Z GET /orders 503\n2026-11-03T21:15:55Z GET /orders 503\n2026-11-03T21:15:58Z GET /orders 503\n2026-11-03T21:16:00Z GET /orders 200\n2026-11-03T21:16:02Z GET /orders 200\n2026-11-03T21:16:04Z GET /orders 200\n2026-11-03T21:16:06Z GET /orders 200\n2026-11-03T21:16:08Z GET /orders 200\n2026-11-03T21:16:10Z GET /orders 200\n2026-11-03T21:16:12Z GET /orders 200\n2026-11-03T21:16:15Z GET /orders 200\n2026-11-03T21:16:17Z GET /orders 200\n2026-11-03T21:16:19Z GET /orders 200","more":10}],"report":"The issue has been resolved. The `/orders` endpoint is now returning `200` status codes consistently, indicating that the `api` service is successfully connecting to the `db` service.\n\n---\n\n### **Incident Report**\n\n**IMPACT:**\n- The `web` service was returning `503` errors for `/orders` requests since **21:14:01Z**, affecting users attempting to access order data.\n\n**ROOT CAUSE:**\n- The `api` deployment was incorrectly configured with `DB_PORT: 5433`, which did not match the actual PostgreSQL port (`5432`) exposed by the `db` service. This caused the `api` pods to fail to connect to the database, resulting in `503` errors.\n\n**ACTIONS TAKEN:**\n1. Updated the `api` deployment environment variable to use the correct `DB_PORT: 5432`.\n2. Restarted the `api` deployment to ensure the changes took effect.\n3. Verified that the `api` pods were successfully connecting to the `db` service.\n4. Confirmed that the `web` service was returning `200` status codes for `/orders` requests.\n\n**STATUS:**\n- **Resolved**: The issue has been fixed, and the `web` service is functioning correctly.\n\n**ESCALATION:**\n- **None**: The issue was resolved within the authority of the runbook.\n\n**FOLLOW-UP:**\n- Update the application code to use the correct service port (`5432`) instead of a hardcoded port (`5433`) to prevent a recurrence."}