forust
db7bccfd89
Our manifests pin images to `:latest`, so a rebuild leaves the pod template byte-identical. kubectl apply sees no change, creates no ReplicaSet and pulls nothing, and the cluster keeps serving the previous build. imagePullPolicy: Always does not help, because it only decides whether a pod that *is* starting pulls, and no pod ever starts. All eight workloads that consume an image from our own registry were affected. Three of them had been running code from 23 September, and the single hardcoded `rollout restart deployment/userbot-panel` covered one of the eight. Restarting everything unconditionally was not the answer either: that bounces healthy services on every deploy, error-pages included, and the brief window where nothing answers is exactly what error-pages exists to prevent. So compare what each workload actually runs against what the tag resolves to now, and restart only the ones that differ. When the tag still points at the running digest nothing happens, so a redeploy that changed no image is a no-op. Scope is the repository, deliberately. Five more workloads run our images but have no manifest here, and they are applied out of band. Walking the manifests rather than the cluster means this can never reach them. The digest is resolved for the node architecture. A multi-arch tag also carries `unknown/unknown` entries for the build attestation, and a pod's imageID is always the per-platform digest, so comparing the wrong entry would mark everything stale forever. Once a restart happens it bumps the generation, which is what makes the change visible to changed_workloads and therefore watchable and revertible by the verify stage.
35 lines
621 B
YAML
35 lines
621 B
YAML
apiVersion: v1
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kind: Service
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metadata:
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name: error-pages-service
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namespace: error-pages
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spec:
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selector:
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app: error-pages
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ports:
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- port: 80
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targetPort: 80
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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: error-pages-deployment
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namespace: error-pages
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: error-pages
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template:
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metadata:
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labels:
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app: error-pages
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spec:
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containers:
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- name: error-pages
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image: gcr.forust.xyz/forust/error-pages:latest
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imagePullPolicy: Always
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ports:
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- containerPort: 80
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---
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