{"id":"s3-gpt-6-luna-r3","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":4.3,"kind":"say","text":"I’ll follow the runbook’s sequence: check probe timing, recent rollouts, then inspect the web/API/DB path before making the smallest authorized change."},{"t":4.5,"kind":"run","cmd":"kubectl -n shop get pods,deploy,svc,endpoints; kubectl -n shop logs deploy/synthetic --since=30m --all-containers=true","out":"Warning: v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice\nNAME                             READY   STATUS    RESTARTS   AGE\npod/api-9fc94df4b-szqjk          1/1     Running   0          64s\npod/api-9fc94df4b-xtlc9          1/1     Running   0          65s\npod/db-5c45bf6fd6-bvtm2          1/1     Running   0          82s\npod/synthetic-5cc5f987df-5zlz6   1/1     Running   0          82s\npod/web-86cc98785b-rg4ld         1/1     Running   0          82s\npod/web-86cc98785b-tdqsh         1/1     Running   0          82s\npod/worker-85767c58ff-hn5gd      1/1     Running   0          82s\n\nNAME                        READY   UP-TO-DATE   AVAILABLE   AGE\ndeployment.apps/api         2/2     2            2           82s\ndeployment.apps/db          1/1     1            1           82s\ndeployment.apps/synthetic   1/1     1            1           82s\ndeployment.apps/web         2/2     2            2           82s\ndeployment.apps/worker      1/1     1            1           82s\n\nNAME          TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)    AGE\nservice/api   ClusterIP   10.96.23.162    <none>        8080/TCP   82s\nservice/db    ClusterIP   10.96.105.196   <none>        5432/TCP   82s\nservice/web   ClusterIP   10.96.216.87    <none>        80/TCP     82s\n\nNAME            ENDPOINTS                             AGE\nendpoints/api   10.244.0.247:8080,10.244.0.248:8080   82s\nendpoints/db    10.244.0.240:5432                     82s\nendpoints/web   10.244.0.244:80,10.244.0.245:80       82s\n2026-11-04T17:24:13Z GET /orders 000\n2026-11-04T17:24:15Z GET /orders 000\n2026-11-04T17:24:17Z GET /orders 200\n2026-11-04T17:24:19Z GET /orders 200\n2026-11-04T17:24:21Z GET /orders 200\n2026-11-04T17:24:23Z GET /orders 200\n2026-11-04T17:24:25Z GET /orders 200\n2026-11-04T17:24:27Z GET /orders 200\n2026-11-04T17:24:29Z GET /orders 200\n2026-11-04T17:24:32Z GET /orders 503\n2026-11-04T17:24:35Z GET /orders 503\n2026-11-04T17:24:38Z GET /orders 503\n2026-11-04T17:24:41Z GET /orders 503\n2026-11-04T17:24:44Z GET /orders 503","more":16},{"t":7.6,"kind":"run","cmd":"kubectl -n shop get deploy web api db -o yaml; kubectl -n shop get events --sort-by=.lastTimestamp","out":"apiVersion: v1\nitems:\n- apiVersion: apps/v1\n  kind: Deployment\n  metadata:\n    annotations:\n      deployment.kubernetes.io/revision: \"1\"\n      kubectl.kubernetes.io/last-applied-configuration: |\n        {\"apiVersion\":\"apps/v1\",\"kind\":\"Deployment\",\"metadata\":{\"annotations\":{},\"labels\":{\"app\":\"web\"},\"name\":\"web\",\"namespace\":\"shop\"},\"spec\":{\"replicas\":2,\"selector\":{\"matchLabels\":{\"app\":\"web\"}},\"template\":{\"metadata\":{\"labels\":{\"app\":\"web\"}},\"spec\":{\"containers\":[{\"image\":\"nginx:1.29-alpine\",\"name\":\"nginx\",\"ports\":[{\"containerPort\":80}],\"readinessProbe\":{\"httpGet\":{\"path\":\"/healthz\",\"port\":80},\"periodSeconds\":5},\"volumeMounts\":[{\"mountPath\":\"/etc/nginx/conf.d\",\"name\":\"conf\"}]}],\"volumes\":[{\"configMap\":{\"name\":\"web-nginx\"},\"name\":\"conf\"}]}}}}\n    creationTimestamp: \"2026-11-04T17:24:11Z\"\n    generation: 1\n    labels:\n      app: web\n    name: web\n    namespace: shop\n    resourceVersion: \"303285\"\n    uid: 544a08f8-3f62-486f-a98a-121082864238\n  spec:\n    progressDeadlineSeconds: 600\n    replicas: 2\n    revisionHistoryLimit: 10\n    selector:\n      matchLabels:\n        app: web\n    strategy:\n      rollingUpdate:\n        maxSurge: 25%\n        maxUnavailable: 25%\n      type: RollingUpdate\n    template:\n      metadata:\n        labels:\n          app: web\n      spec:\n        containers:\n        - image: nginx:1.29-alpine\n          imagePullPolicy: IfNotPresent\n          name: nginx\n          ports:\n          - containerPort: 80","more":311},{"t":7.6,"kind":"run","cmd":"kubectl -n shop logs deploy/web --since=20m --all-containers=true; kubectl -n shop logs deploy/api --since=20m --all-containers=true; kubectl -n shop logs deploy/db --since=20m --all-containers=true","out":"Found 2 pods, using pod/web-86cc98785b-rg4ld\n/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\n2026/11/04 17:24:11 [notice] 1#1: using the \"epoll\" event method\n2026/11/04 17:24:11 [notice] 1#1: nginx/1.29.8\n2026/11/04 17:24:11 [notice] 1#1: built by gcc 15.2.0 (Alpine 15.2.0) \n2026/11/04 17:24:11 [notice] 1#1: OS: Linux 6.8.0-117-generic\n2026/11/04 17:24:11 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1073741816:1073741816\n2026/11/04 17:24:11 [notice] 1#1: start worker processes\n2026/11/04 17:24:11 [notice] 1#1: start worker process 29\n2026/11/04 17:24:11 [notice] 1#1: start worker process 30\n2026/11/04 17:24:11 [notice] 1#1: start worker process 31\n2026/11/04 17:24:11 [notice] 1#1: start worker process 32\n2026/11/04 17:24:11 [notice] 1#1: start worker process 33\n2026/11/04 17:24:11 [notice] 1#1: start worker process 34\n2026/11/04 17:24:11 [notice] 1#1: start worker process 35\n2026/11/04 17:24:11 [notice] 1#1: start worker process 36\n10.244.0.1 - - [04/Nov/2026:17:24:17 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [04/Nov/2026:17:24:17 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.246 - - [04/Nov/2026:17:24:17 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [04/Nov/2026:17:24:22 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.246 - - [04/Nov/2026:17:24:24 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.246 - - [04/Nov/2026:17:24:25 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.246 - - [04/Nov/2026:17:24:26 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [04/Nov/2026:17:24:27 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.246 - - [04/Nov/2026:17:24:27 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.246 - - [04/Nov/2026:17:24:29 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [04/Nov/2026:17:24:32 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [04/Nov/2026:17:24:37 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.246 - - [04/Nov/2026:17:24:41 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [04/Nov/2026:17:24:42 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [04/Nov/2026:17:24:47 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.246 - - [04/Nov/2026:17:24:50 +0000] \"GET /orders HTTP/1.1\" 503 33 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [04/Nov/2026:17:24:52 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"","more":88},{"t":7.7,"kind":"run","cmd":"kubectl -n shop rollout history deploy/web; kubectl -n shop rollout history deploy/api; kubectl -n shop rollout history deploy/db; kubectl -n shop rollout history deploy/worker","out":"deployment.apps/web \nREVISION  CHANGE-CAUSE\n1         <none>\n\ndeployment.apps/api \nREVISION  CHANGE-CAUSE\n1         <none>\n2         release 2026.11.3: connection pool settings\n\ndeployment.apps/db \nREVISION  CHANGE-CAUSE\n1         <none>\n\ndeployment.apps/worker \nREVISION  CHANGE-CAUSE\n1         <none>","more":0},{"t":11.9,"kind":"say","text":"Probe failures began at 17:24:32 and became persistent 503s after initial startup. `api` revision 2 is the only recent rollout (`release 2026.11.3: connection pool settings`); its Deployment explicitly sets `DB_PORT=5433`, while PostgreSQL listens on 5432. API logs confirm connection timeouts to `db:5433`. I’m undoing that matching rollout per the runbook."},{"t":11.9,"kind":"run","cmd":"kubectl -n shop rollout undo deploy/api","out":"Warning: resource deployments/api was previously managed with 'kubectl apply'. Rolling back will not update the kubectl.kubernetes.io/last-applied-configuration annotation, which may cause unexpected behavior on future 'kubectl apply' operations. Consider using 'kubectl apply' with your previous configuration file instead.\ndeployment.apps/api rolled back","more":0},{"t":14.4,"kind":"run","cmd":"kubectl -n shop logs deploy/synthetic --since=3m --all-containers=true; kubectl -n shop logs deploy/api --since=3m --all-containers=true","out":"2026-11-04T17:24:13Z GET /orders 000\n2026-11-04T17:24:15Z GET /orders 000\n2026-11-04T17:24:17Z GET /orders 200\n2026-11-04T17:24:19Z GET /orders 200\n2026-11-04T17:24:21Z GET /orders 200\n2026-11-04T17:24:23Z GET /orders 200\n2026-11-04T17:24:25Z GET /orders 200\n2026-11-04T17:24:27Z GET /orders 200\n2026-11-04T17:24:29Z GET /orders 200\n2026-11-04T17:24:32Z GET /orders 503\n2026-11-04T17:24:35Z GET /orders 503\n2026-11-04T17:24:38Z GET /orders 503\n2026-11-04T17:24:41Z GET /orders 503\n2026-11-04T17:24:44Z GET /orders 503\n2026-11-04T17:24:47Z GET /orders 503\n2026-11-04T17:24:50Z GET /orders 503\n2026-11-04T17:24:53Z GET /orders 503\n2026-11-04T17:24:56Z GET /orders 503\n2026-11-04T17:24:59Z GET /orders 503\n2026-11-04T17:25:02Z GET /orders 503\n2026-11-04T17:25:05Z GET /orders 503\n2026-11-04T17:25:08Z GET /orders 503\n2026-11-04T17:25:11Z GET /orders 503\n2026-11-04T17:25:14Z GET /orders 503\n2026-11-04T17:25:17Z GET /orders 503\n2026-11-04T17:25:20Z GET /orders 503\n2026-11-04T17:25:23Z GET /orders 503\n2026-11-04T17:25:26Z GET /orders 503\n2026-11-04T17:25:29Z GET /orders 503\n2026-11-04T17:25:32Z GET /orders 503\n2026-11-04T17:25:35Z GET /orders 503\n2026-11-04T17:25:38Z GET /orders 503\n2026-11-04T17:25:41Z GET /orders 503\nFound 4 pods, using pod/api-9fc94df4b-xtlc9\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","more":11},{"t":14.5,"kind":"run","cmd":"kubectl -n shop rollout status deploy/api --timeout=120s; kubectl -n shop get deploy api -o jsonpath='{.spec.template.spec.containers[0].env}'; kubectl -n shop get pods,endpoints api","out":"deployment \"api\" successfully rolled out\nWarning: v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice\nNAME   ENDPOINTS                             AGE\napi    10.244.0.249:8080,10.244.0.250:8080   92s\nError from server (NotFound): pods \"api\" not found","more":0},{"t":18.8,"kind":"run","cmd":"kubectl -n shop get pods -l app=api -o wide; kubectl -n shop get deploy api -o jsonpath='{.spec.template.spec.containers[0].env}'; kubectl -n shop logs -l app=api --since=1m --all-containers=true --prefix=true; kubectl -n shop logs deploy/synthetic --since=1m --all-containers=true | tail -15","out":"NAME                   READY   STATUS        RESTARTS   AGE   IP             NODE                       NOMINATED NODE   READINESS GATES\napi-7d87b9fcf5-6zzq5   1/1     Running       0          7s    10.244.0.249   oncall-lab-control-plane   <none>           <none>\napi-7d87b9fcf5-rqn6b   1/1     Running       0          6s    10.244.0.250   oncall-lab-control-plane   <none>           <none>\napi-9fc94df4b-szqjk    1/1     Terminating   0          78s   10.244.0.248   oncall-lab-control-plane   <none>           <none>\napi-9fc94df4b-xtlc9    1/1     Terminating   0          79s   10.244.0.247   oncall-lab-control-plane   <none>           <none>\n[pod/api-9fc94df4b-szqjk/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-szqjk/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-szqjk/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-szqjk/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-szqjk/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-7d87b9fcf5-6zzq5/api] api listening on 8080, db=db:5432\n[pod/api-7d87b9fcf5-rqn6b/api] api listening on 8080, db=db:5432\n2026-11-04T17:25:08Z GET /orders 503\n2026-11-04T17:25:11Z GET /orders 503\n2026-11-04T17:25:14Z GET /orders 503\n2026-11-04T17:25:17Z GET /orders 503\n2026-11-04T17:25:20Z GET /orders 503\n2026-11-04T17:25:23Z GET /orders 503\n2026-11-04T17:25:26Z GET /orders 503\n2026-11-04T17:25:29Z GET /orders 503\n2026-11-04T17:25:32Z GET /orders 503\n2026-11-04T17:25:35Z GET /orders 503\n2026-11-04T17:25:38Z GET /orders 503\n2026-11-04T17:25:41Z GET /orders 503\n2026-11-04T17:25:43Z GET /orders 200\n2026-11-04T17:25:45Z GET /orders 200\n2026-11-04T17:25:47Z GET /orders 200","more":0},{"t":22.6,"kind":"run","cmd":"kubectl -n shop get pods,svc,endpoints; kubectl -n shop logs deploy/synthetic --since=30s --all-containers=true | tail -12; kubectl -n shop logs -l app=api --since=30s --all-containers=true --prefix=true","out":"Warning: v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice\nNAME                             READY   STATUS        RESTARTS   AGE\npod/api-7d87b9fcf5-6zzq5         1/1     Running       0          11s\npod/api-7d87b9fcf5-rqn6b         1/1     Running       0          10s\npod/api-9fc94df4b-szqjk          1/1     Terminating   0          82s\npod/api-9fc94df4b-xtlc9          1/1     Terminating   0          83s\npod/db-5c45bf6fd6-bvtm2          1/1     Running       0          100s\npod/synthetic-5cc5f987df-5zlz6   1/1     Running       0          100s\npod/web-86cc98785b-rg4ld         1/1     Running       0          100s\npod/web-86cc98785b-tdqsh         1/1     Running       0          100s\npod/worker-85767c58ff-hn5gd      1/1     Running       0          100s\n\nNAME          TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)    AGE\nservice/api   ClusterIP   10.96.23.162    <none>        8080/TCP   100s\nservice/db    ClusterIP   10.96.105.196   <none>        5432/TCP   100s\nservice/web   ClusterIP   10.96.216.87    <none>        80/TCP     100s\n\nNAME            ENDPOINTS                             AGE\nendpoints/api   10.244.0.249:8080,10.244.0.250:8080   100s\nendpoints/db    10.244.0.240:5432                     100s\nendpoints/web   10.244.0.244:80,10.244.0.245:80       100s\n2026-11-04T17:25:23Z GET /orders 503\n2026-11-04T17:25:26Z GET /orders 503\n2026-11-04T17:25:29Z GET /orders 503\n2026-11-04T17:25:32Z GET /orders 503\n2026-11-04T17:25:35Z GET /orders 503\n2026-11-04T17:25:38Z GET /orders 503\n2026-11-04T17:25:41Z GET /orders 503\n2026-11-04T17:25:43Z GET /orders 200\n2026-11-04T17:25:45Z GET /orders 200\n2026-11-04T17:25:47Z GET /orders 200\n2026-11-04T17:25:49Z GET /orders 200\n[pod/api-7d87b9fcf5-rqn6b/api] api listening on 8080, db=db:5432\n[pod/api-9fc94df4b-szqjk/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-szqjk/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-szqjk/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out\n[pod/api-9fc94df4b-xtlc9/api] ERROR db connect db:5433: timed out","more":1}],"report":"IMPACT: `shop/web /orders` returned 503s from 17:24:32Z until recovery at 17:25:43Z; synthetic probes showed 100% failures during the incident.\n\nROOT CAUSE: Deployment `shop/api`, container `api`, field `env.DB_PORT` was set to `5433`; the PostgreSQL service listens on `5432`. API logs showed connection timeouts to `db:5433`.\n\nACTIONS TAKEN:\n1. Undid the matching `api` rollout, restoring the prior configuration with `db:5432`.\n2. Verified the API rollout completed, both API pods were ready and in service endpoints, and synthetic `/orders` probes returned 200.\n\nSTATUS: resolved — synthetic probes returned consecutive 200s after recovery, and the API pods were ready with DB connections configured for port 5432.\n\nESCALATION: none.\n\nFOLLOW-UP: Add validation to API rollout checks to catch DB port mismatches before deployment."}