Nguyen Minh Phuc
50c2fe2a1e
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Complete working build of the system learn-python/ teaches. 164 tests, mypy --strict clean, domain coverage 99%.
85 lines
3.4 KiB
YAML
85 lines
3.4 KiB
YAML
apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: {{ include "svcforge.fullname" . }}-worker
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labels:
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{{- include "svcforge.labels" . | nindent 4 }}
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app.kubernetes.io/component: worker
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spec:
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# Plain replicas, no HPA. Concurrency is bounded twice over — by replicas here and by a
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# semaphore inside the claim loop — and the SKIP LOCKED claim makes both safe. The day
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# replicas: 2 stops keeping up, add an HPA. Not before.
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replicas: {{ .Values.worker.replicas }}
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selector:
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matchLabels:
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{{- include "svcforge.selectorLabels" (dict "ctx" $ "component" "worker") | nindent 6 }}
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template:
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metadata:
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labels:
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{{- include "svcforge.labels" . | nindent 8 }}
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{{- include "svcforge.selectorLabels" (dict "ctx" $ "component" "worker") | nindent 8 }}
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spec:
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serviceAccountName: {{ include "svcforge.serviceAccountName" (dict "ctx" $ "component" "worker") }}
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{{- with .Values.image.pullSecrets }}
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imagePullSecrets:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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# The load-bearing one. On SIGTERM the loop stops claiming and finishes the task in
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# hand; 60s is the budget for that. Chaos experiment 2 asserts the pod exits 0 inside
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# it. Lower this and a rolling deploy starts orphaning tasks to lease expiry.
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terminationGracePeriodSeconds: 60
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securityContext:
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{{- include "svcforge.podSecurityContext" . | nindent 8 }}
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containers:
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- name: worker
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image: {{ include "svcforge.image" (dict "ctx" $ "component" "worker") }}
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imagePullPolicy: {{ .Values.image.pullPolicy }}
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securityContext:
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{{- include "svcforge.containerSecurityContext" . | nindent 12 }}
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ports:
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- name: metrics
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containerPort: 9000
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envFrom:
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- secretRef:
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name: {{ include "svcforge.secretName" . }}
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env:
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{{- include "svcforge.env" . | nindent 12 }}
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# The claim loop stamps locked_by with this. Per-pod, so a stuck lease names
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# the pod that holds it — runbook entry 1 depends on that.
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- name: SVCFORGE_WORKER_ID
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valueFrom:
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fieldRef:
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fieldPath: metadata.name
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- name: SVCFORGE_WORKER_CONCURRENCY
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value: {{ .Values.worker.concurrency | quote }}
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- name: OTEL_SERVICE_NAME
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value: svcforge-worker
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# No liveness probe. A worker mid-provision is legitimately busy for minutes;
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# a probe here is a way to kill a healthy provision and learn nothing.
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resources:
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{{- toYaml .Values.worker.resources | nindent 12 }}
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volumeMounts:
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- name: tmp
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mountPath: /tmp
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# helm writes cache/config/repositories under $HELM_*_HOME, which the image
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# points at /tmp/helm. Without this, every helm call fails on a read-only fs.
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- name: helm-home
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mountPath: /tmp/helm
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volumes:
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- name: tmp
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emptyDir: {}
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- name: helm-home
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emptyDir: {}
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{{- with .Values.nodeSelector }}
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nodeSelector:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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{{- with .Values.tolerations }}
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tolerations:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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{{- with .Values.affinity }}
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affinity:
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{{- toYaml . | nindent 8 }}
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{{- end }}
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