{"id":"s8-gpt-6-luna-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/`.\n If a rollout matches the start time, `kubectl -n shop rollout undo deploy/`.\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":3.9,"kind":"say","text":"I’ll follow the runbook in order: establish the synthetic failure window, inspect recent rollouts, then check the affected workloads and only make a scoped change supported by the evidence."},{"t":4.1,"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-7d87b9fcf5-2h52k 1/1 Running 0 81s\npod/api-7d87b9fcf5-4wstj 1/1 Running 0 81s\npod/db-5c45bf6fd6-2q6zn 1/1 Running 0 82s\npod/synthetic-5cc5f987df-ln9xz 1/1 Running 0 81s\npod/web-765c764598-rvrdj 1/1 Running 0 64s\npod/web-765c764598-s8dgf 1/1 Running 0 63s\npod/worker-8d9d856dd-2sxkk 0/1 OOMKilled 3 (48s ago) 64s\n\nNAME READY UP-TO-DATE AVAILABLE AGE\ndeployment.apps/api 2/2 2 2 81s\ndeployment.apps/db 1/1 1 1 82s\ndeployment.apps/synthetic 1/1 1 1 81s\ndeployment.apps/web 2/2 2 2 81s\ndeployment.apps/worker 0/1 1 0 81s\n\nNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE\nservice/api ClusterIP 10.96.10.201 8080/TCP 81s\nservice/db ClusterIP 10.96.132.102 5432/TCP 82s\nservice/web ClusterIP 10.96.60.175 80/TCP 81s\n\nNAME ENDPOINTS AGE\nendpoints/api 10.244.0.114:8080,10.244.0.115:8080 81s\nendpoints/db 10.244.0.113:5432 81s\nendpoints/web 10.244.0.121:80,10.244.0.122:80 81s\n2026-11-04T18:04:42Z GET /orders 000\n2026-11-04T18:04:44Z GET /orders 000\n2026-11-04T18:04:46Z GET /orders 000\n2026-11-04T18:04:48Z GET /orders 200\n2026-11-04T18:04:50Z GET /orders 200\n2026-11-04T18:04:52Z GET /orders 200\n2026-11-04T18:04:54Z GET /orders 200\n2026-11-04T18:04:56Z GET /orders 200\n2026-11-04T18:04:58Z GET /orders 200\n2026-11-04T18:05:04Z GET /orders 000\n2026-11-04T18:05:08Z GET /orders 504\n2026-11-04T18:05:12Z GET /orders 504\n2026-11-04T18:05:16Z GET /orders 504\n2026-11-04T18:05:20Z GET /orders 504","more":10},{"t":7.6,"kind":"run","cmd":"kubectl -n shop get deploy web api db worker -o yaml","out":"apiVersion: v1\nitems:\n- apiVersion: apps/v1\n kind: Deployment\n metadata:\n annotations:\n deployment.kubernetes.io/revision: \"2\"\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 kubernetes.io/change-cause: 'release 2026.11.3: edge routing for orders-v2'\n creationTimestamp: \"2026-11-04T18:04:41Z\"\n generation: 3\n labels:\n app: web\n name: web\n namespace: shop\n resourceVersion: \"313002\"\n uid: 95f41ee4-d5c8-4aa6-98d1-249d990462c7\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:","more":325},{"t":7.6,"kind":"run","cmd":"kubectl -n shop describe pod -l app=worker; kubectl -n shop logs deploy/worker --previous --all-containers=true","out":"Name: worker-8d9d856dd-2sxkk\nNamespace: shop\nPriority: 0\nService Account: default\nNode: oncall-lab-control-plane/172.22.0.2\nStart Time: Wed, 04 Nov 2026 18:04:58 +0000\nLabels: app=worker\n pod-template-hash=8d9d856dd\nAnnotations: \nStatus: Running\nIP: 10.244.0.120\nIPs:\n IP: 10.244.0.120\nControlled By: ReplicaSet/worker-8d9d856dd\nContainers:\n worker:\n Container ID: containerd://a7e7881fe4e990cccaad71f5dfa99a9cf72a9bebcee9907831c992b005e6bf54\n Image: python:3.13-alpine\n Image ID: docker.io/library/python@sha256:7984cf56ceaddebe4fefeb75d64000b9f45d8b77b11a09b24524da6cdc3af0c8\n Port: \n Host Port: \n Command:\n python\n -u\n /app/worker.py\n State: Terminated\n Reason: OOMKilled\n Exit Code: 137\n Started: Wed, 04 Nov 2026 18:05:38 +0000\n Finished: Wed, 04 Nov 2026 18:05:39 +0000\n Last State: Terminated\n Reason: OOMKilled\n Exit Code: 137\n Started: Wed, 04 Nov 2026 18:05:13 +0000\n Finished: Wed, 04 Nov 2026 18:05:14 +0000\n Ready: False\n Restart Count: 3\n Limits:\n memory: 192Mi\n Requests:","more":38},{"t":7.7,"kind":"run","cmd":"kubectl -n shop logs deploy/web --all-containers=true --since=15m; kubectl -n shop logs deploy/api --all-containers=true --since=15m; kubectl -n shop logs deploy/db --all-containers=true --since=15m","out":"Found 2 pods, using pod/web-765c764598-rvrdj\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 18:04:58 [notice] 1#1: using the \"epoll\" event method\n2026/11/04 18:04:58 [notice] 1#1: nginx/1.29.8\n2026/11/04 18:04:58 [notice] 1#1: built by gcc 15.2.0 (Alpine 15.2.0) \n2026/11/04 18:04:58 [notice] 1#1: OS: Linux 6.8.0-117-generic\n2026/11/04 18:04:58 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1073741816:1073741816\n2026/11/04 18:04:58 [notice] 1#1: start worker processes\n2026/11/04 18:04:58 [notice] 1#1: start worker process 28\n2026/11/04 18:04:58 [notice] 1#1: start worker process 29\n2026/11/04 18:04:58 [notice] 1#1: start worker process 30\n2026/11/04 18:04:58 [notice] 1#1: start worker process 31\n2026/11/04 18:04:58 [notice] 1#1: start worker process 32\n2026/11/04 18:04:58 [notice] 1#1: start worker process 33\n2026/11/04 18:04:58 [notice] 1#1: start worker process 34\n2026/11/04 18:04:58 [notice] 1#1: start worker process 35\n10.244.0.1 - - [04/Nov/2026:18:04:59 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [04/Nov/2026:18:05:04 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n2026/11/04 18:05:08 [error] 31#31: *5 upstream timed out (110: Operation timed out) while connecting to upstream, client: 10.244.0.119, server: , request: \"GET /orders HTTP/1.1\", upstream: \"http://10.96.200.200:8080/orders\", host: \"web\"\n10.244.0.119 - - [04/Nov/2026:18:05:08 +0000] \"GET /orders HTTP/1.1\" 504 167 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [04/Nov/2026:18:05:09 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [04/Nov/2026:18:05:14 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n2026/11/04 18:05:16 [error] 34#34: *11 upstream timed out (110: Operation timed out) while connecting to upstream, client: 10.244.0.119, server: , request: \"GET /orders HTTP/1.1\", upstream: \"http://10.96.200.200:8080/orders\", host: \"web\"\n10.244.0.119 - - [04/Nov/2026:18:05:16 +0000] \"GET /orders HTTP/1.1\" 504 167 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [04/Nov/2026:18:05:19 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [04/Nov/2026:18:05:24 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [04/Nov/2026:18:05:29 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [04/Nov/2026:18:05:34 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n2026/11/04 18:05:36 [error] 28#28: *21 upstream timed out (110: Operation timed out) while connecting to upstream, client: 10.244.0.119, server: , request: \"GET /orders HTTP/1.1\", upstream: \"http://10.96.200.200:8080/orders\", host: \"web\"\n10.244.0.119 - - [04/Nov/2026:18:05:36 +0000] \"GET /orders HTTP/1.1\" 504 167 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [04/Nov/2026:18:05:39 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.1 - - [04/Nov/2026:18:05:44 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n2026/11/04 18:05:48 [error] 28#28: *27 upstream timed out (110: Operation timed out) while connecting to upstream, client: 10.244.0.119, server: , request: \"GET /orders HTTP/1.1\", upstream: \"http://10.96.200.200:8080/orders\", host: \"web\"","more":67},{"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 \n2 release 2026.11.3: edge routing for orders-v2\n\ndeployment.apps/api \nREVISION CHANGE-CAUSE\n1 \n\ndeployment.apps/db \nREVISION CHANGE-CAUSE\n1 \n\ndeployment.apps/worker \nREVISION CHANGE-CAUSE\n1 \n2 ","more":0},{"t":14.1,"kind":"say","text":"The failure lines up with the `web` rollout: nginx is timing out to `10.96.200.200:8080`, while the live `api` Service is `10.96.10.201:8080`. The web Deployment now mounts `web-nginx-v3`, unlike its prior revision, so I’m rolling back that matching rollout. The worker OOM is separate from this alert; I’ll avoid changing it without a queue-lag signal."},{"t":14.1,"kind":"run","cmd":"kubectl -n shop get configmap web-nginx web-nginx-v3 -o yaml","out":"apiVersion: v1\nitems:\n- apiVersion: v1\n data:\n default.conf: |\n server {\n listen 80;\n location / { proxy_pass http://api:8080; proxy_connect_timeout 2s; proxy_read_timeout 3s; }\n }\n kind: ConfigMap\n metadata:\n annotations:\n kubectl.kubernetes.io/last-applied-configuration: |\n {\"apiVersion\":\"v1\",\"data\":{\"default.conf\":\"server {\\n listen 80;\\n location / { proxy_pass http://api:8080; proxy_connect_timeout 2s; proxy_read_timeout 3s; }\\n}\\n\"},\"kind\":\"ConfigMap\",\"metadata\":{\"annotations\":{},\"name\":\"web-nginx\",\"namespace\":\"shop\"}}\n creationTimestamp: \"2026-11-04T18:04:41Z\"\n name: web-nginx\n namespace: shop\n resourceVersion: \"312729\"\n uid: 13a6bfd9-5809-4b9c-afab-fbe18f0adbe4\n- apiVersion: v1\n data:\n default.conf: server { listen 80; location /healthz { proxy_pass http://api:8080;\n } location / { proxy_pass http://10.96.200.200:8080; proxy_connect_timeout 2s;\n } }\n kind: ConfigMap\n metadata:\n creationTimestamp: \"2026-11-04T18:04:58Z\"\n name: web-nginx-v3\n namespace: shop\n resourceVersion: \"312891\"\n uid: 79560782-2102-4c8e-8907-a38f03153f0a\nkind: List\nmetadata:\n resourceVersion: \"\"","more":0},{"t":14.2,"kind":"run","cmd":"kubectl -n shop get svc api -o wide; kubectl -n shop get endpoints api -o wide","out":"NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR\napi ClusterIP 10.96.10.201 8080/TCP 91s app=api\nWarning: v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice\nNAME ENDPOINTS AGE\napi 10.244.0.114:8080,10.244.0.115:8080 91s","more":0},{"t":15.8,"kind":"run","cmd":"kubectl -n shop rollout undo deploy/web","out":"Warning: resource deployments/web 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/web rolled back","more":0},{"t":19.0,"kind":"run","cmd":"kubectl -n shop rollout status deploy/web --timeout=120s; kubectl -n shop get pods,deploy,svc,endpoints","out":"deployment \"web\" successfully rolled out\nWarning: v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice\nNAME READY STATUS RESTARTS AGE\npod/api-7d87b9fcf5-2h52k 1/1 Running 0 96s\npod/api-7d87b9fcf5-4wstj 1/1 Running 0 96s\npod/db-5c45bf6fd6-2q6zn 1/1 Running 0 97s\npod/synthetic-5cc5f987df-ln9xz 1/1 Running 0 96s\npod/web-86cc98785b-4rwx5 1/1 Running 0 2s\npod/web-86cc98785b-88l7g 1/1 Running 0 3s\npod/worker-8d9d856dd-2sxkk 0/1 OOMKilled 3 (63s ago) 79s\n\nNAME READY UP-TO-DATE AVAILABLE AGE\ndeployment.apps/api 2/2 2 2 96s\ndeployment.apps/db 1/1 1 1 97s\ndeployment.apps/synthetic 1/1 1 1 96s\ndeployment.apps/web 2/2 2 2 96s\ndeployment.apps/worker 0/1 1 0 96s\n\nNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE\nservice/api ClusterIP 10.96.10.201 8080/TCP 96s\nservice/db ClusterIP 10.96.132.102 5432/TCP 97s\nservice/web ClusterIP 10.96.60.175 80/TCP 96s\n\nNAME ENDPOINTS AGE\nendpoints/api 10.244.0.114:8080,10.244.0.115:8080 96s\nendpoints/db 10.244.0.113:5432 96s\nendpoints/web 10.244.0.123:80,10.244.0.124:80 96s","more":0},{"t":23.4,"kind":"run","cmd":"kubectl -n shop get deploy web -o jsonpath='{.spec.template.spec.volumes[?(@.name==\"conf\")].configMap.name}{\"\\n\"}{.metadata.annotations.deployment\\.kubernetes\\.io/revision}{\"\\n\"}'","out":"web-nginx\n3","more":0},{"t":23.4,"kind":"run","cmd":"kubectl -n shop logs deploy/synthetic --since=3m --all-containers=true","out":"2026-11-04T18:04:42Z GET /orders 000\n2026-11-04T18:04:44Z GET /orders 000\n2026-11-04T18:04:46Z GET /orders 000\n2026-11-04T18:04:48Z GET /orders 200\n2026-11-04T18:04:50Z GET /orders 200\n2026-11-04T18:04:52Z GET /orders 200\n2026-11-04T18:04:54Z GET /orders 200\n2026-11-04T18:04:56Z GET /orders 200\n2026-11-04T18:04:58Z GET /orders 200\n2026-11-04T18:05:04Z GET /orders 000\n2026-11-04T18:05:08Z GET /orders 504\n2026-11-04T18:05:12Z GET /orders 504\n2026-11-04T18:05:16Z GET /orders 504\n2026-11-04T18:05:20Z GET /orders 504\n2026-11-04T18:05:24Z GET /orders 504\n2026-11-04T18:05:28Z GET /orders 504\n2026-11-04T18:05:32Z GET /orders 504\n2026-11-04T18:05:36Z GET /orders 504\n2026-11-04T18:05:40Z GET /orders 504\n2026-11-04T18:05:44Z GET /orders 504\n2026-11-04T18:05:48Z GET /orders 504\n2026-11-04T18:05:52Z GET /orders 504\n2026-11-04T18:05:56Z GET /orders 504\n2026-11-04T18:06:00Z GET /orders 504\n2026-11-04T18:06:04Z GET /orders 504\n2026-11-04T18:06:08Z GET /orders 504\n2026-11-04T18:06:12Z GET /orders 504\n2026-11-04T18:06:16Z GET /orders 504\n2026-11-04T18:06:18Z GET /orders 200\n2026-11-04T18:06:20Z GET /orders 200","more":0},{"t":23.4,"kind":"run","cmd":"kubectl -n shop logs deploy/web --all-containers=true --since=2m","out":"Found 2 pods, using pod/web-86cc98785b-88l7g\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 18:06:14 [notice] 1#1: using the \"epoll\" event method\n2026/11/04 18:06:14 [notice] 1#1: nginx/1.29.8\n2026/11/04 18:06:14 [notice] 1#1: built by gcc 15.2.0 (Alpine 15.2.0) \n2026/11/04 18:06:14 [notice] 1#1: OS: Linux 6.8.0-117-generic\n2026/11/04 18:06:14 [notice] 1#1: getrlimit(RLIMIT_NOFILE): 1073741816:1073741816\n2026/11/04 18:06:14 [notice] 1#1: start worker processes\n2026/11/04 18:06:14 [notice] 1#1: start worker process 28\n2026/11/04 18:06:14 [notice] 1#1: start worker process 29\n2026/11/04 18:06:14 [notice] 1#1: start worker process 30\n2026/11/04 18:06:14 [notice] 1#1: start worker process 31\n2026/11/04 18:06:14 [notice] 1#1: start worker process 32\n2026/11/04 18:06:14 [notice] 1#1: start worker process 33\n2026/11/04 18:06:14 [notice] 1#1: start worker process 34\n2026/11/04 18:06:14 [notice] 1#1: start worker process 35\n10.244.0.1 - - [04/Nov/2026:18:06:15 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.119 - - [04/Nov/2026:18:06:18 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"\n10.244.0.1 - - [04/Nov/2026:18:06:20 +0000] \"GET /healthz HTTP/1.1\" 200 12 \"-\" \"kube-probe/1.37\" \"-\"\n10.244.0.119 - - [04/Nov/2026:18:06:20 +0000] \"GET /orders HTTP/1.1\" 200 36 \"-\" \"curl/8.17.0\" \"-\"","more":0},{"t":33.3,"kind":"run","cmd":"kubectl -n shop logs deploy/synthetic --tail=8 --all-containers=true","out":"2026-11-04T18:06:16Z GET /orders 504\n2026-11-04T18:06:18Z GET /orders 200\n2026-11-04T18:06:20Z GET /orders 200\n2026-11-04T18:06:22Z GET /orders 200\n2026-11-04T18:06:24Z GET /orders 200\n2026-11-04T18:06:26Z GET /orders 200\n2026-11-04T18:06:28Z GET /orders 200\n2026-11-04T18:06:30Z GET /orders 200","more":0}],"report":"IMPACT: `GET /orders` requests through `shop/web` failed from approximately 2026-11-04 18:05:04 UTC; synthetic probes recorded repeated 504s starting at 18:05:08 UTC.\n\nROOT CAUSE: ConfigMap `shop/web-nginx-v3`, field `data.default.conf`, routed requests to stale IP `10.96.200.200:8080` instead of the `api` Service. Deployment `shop/web` referenced that ConfigMap.\n\nACTIONS TAKEN:\n1. Rolled back Deployment `shop/web` to the prior revision, restoring its `web-nginx` ConfigMap reference.\n\nSTATUS: Resolved for the orders alert. The web rollout completed with 2/2 replicas available, and synthetic probes returned 200 continuously from 18:06:18 through 18:06:30 UTC. The worker pod remains OOMKilled (0/1); no WorkerQueueLag alert was supplied, so I made no worker change.\n\nESCALATION: none; the web rollback was within runbook authority and did not risk customer data.\n\nFOLLOW-UP: Keep the web upstream configured with the `api` Service DNS name, and verify `/orders` after future web rollouts."}