100 lines
2.8 KiB
YAML
100 lines
2.8 KiB
YAML
# The API, as a blue-green Rollout.
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#
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# Same shape as a Deployment, but the new version comes up alongside the old,
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# gets checked against Prometheus, and only then takes over the active Service.
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apiVersion: argoproj.io/v1alpha1
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kind: Rollout
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metadata:
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name: nereus-api
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labels:
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app.kubernetes.io/name: nereus-api
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app.kubernetes.io/part-of: nereus
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spec:
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replicas: 2
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revisionHistoryLimit: 3
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selector:
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matchLabels:
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app.kubernetes.io/name: nereus-api
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template:
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metadata:
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labels:
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app.kubernetes.io/name: nereus-api
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app.kubernetes.io/part-of: nereus
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spec:
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imagePullSecrets:
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- name: nereus-registry
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securityContext:
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# distroless nonroot.
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runAsUser: 65532
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runAsGroup: 65532
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runAsNonRoot: true
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seccompProfile:
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type: RuntimeDefault
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containers:
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- name: api
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image: nereus-api:0.1.0
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imagePullPolicy: IfNotPresent
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ports:
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- name: http
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containerPort: 8080
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envFrom:
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- configMapRef:
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name: nereus-api-config
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env:
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- name: DATABASE_URL
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valueFrom:
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secretKeyRef:
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name: nereus-db
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key: DATABASE_URL
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# /healthz ignores Postgres, so a database outage makes pods unready
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# without restarting them.
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livenessProbe:
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httpGet:
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path: /healthz
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port: http
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initialDelaySeconds: 3
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periodSeconds: 10
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timeoutSeconds: 2
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failureThreshold: 3
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# /readyz waits for migrations.
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readinessProbe:
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httpGet:
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path: /readyz
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port: http
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initialDelaySeconds: 3
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periodSeconds: 5
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timeoutSeconds: 3
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failureThreshold: 3
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securityContext:
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allowPrivilegeEscalation: false
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capabilities:
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drop: ["ALL"]
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readOnlyRootFilesystem: true
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volumeMounts:
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- name: tmp
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mountPath: /tmp
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resources:
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requests:
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cpu: 50m
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memory: 64Mi
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limits:
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memory: 256Mi
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volumes:
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- name: tmp
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emptyDir:
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medium: Memory
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sizeLimit: 16Mi
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strategy:
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blueGreen:
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activeService: nereus-api-active
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previewService: nereus-api-preview
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# Auto-promote only if the analysis passes; a failure aborts instead.
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autoPromotionEnabled: true
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# Keep the old ReplicaSet warm so an abort falls straight back.
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scaleDownDelaySeconds: 30
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prePromotionAnalysis:
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templates:
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- templateName: nereus-api-error-rate
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args:
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- name: service
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value: nereus-api-preview
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