113 lines
3 KiB
YAML
113 lines
3 KiB
YAML
# Postgres 17, StatefulSet + headless Service.
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#
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# StatefulSet rather than Deployment for the stable pod name and a PVC that
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# survives the pod.
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: nereus-postgres
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labels:
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app.kubernetes.io/name: nereus-postgres
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app.kubernetes.io/part-of: nereus
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spec:
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clusterIP: None
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selector:
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app.kubernetes.io/name: nereus-postgres
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ports:
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- name: postgres
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port: 5432
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targetPort: postgres
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---
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apiVersion: apps/v1
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kind: StatefulSet
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metadata:
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name: nereus-postgres
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labels:
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app.kubernetes.io/name: nereus-postgres
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app.kubernetes.io/part-of: nereus
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spec:
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serviceName: nereus-postgres
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replicas: 1
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selector:
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matchLabels:
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app.kubernetes.io/name: nereus-postgres
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template:
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metadata:
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labels:
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app.kubernetes.io/name: nereus-postgres
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app.kubernetes.io/part-of: nereus
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spec:
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securityContext:
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# postgres:17-alpine runs as uid 70. The Debian tags use 999.
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runAsUser: 70
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runAsGroup: 70
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fsGroup: 70
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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: postgres
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image: postgres:17-alpine
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ports:
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- name: postgres
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containerPort: 5432
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env:
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- name: POSTGRES_DB
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value: nereus
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- name: POSTGRES_USER
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value: nereus
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- name: POSTGRES_PASSWORD
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valueFrom:
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secretKeyRef:
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name: nereus-db
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key: POSTGRES_PASSWORD
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# Subdirectory, or initdb trips over lost+found on the volume.
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- name: PGDATA
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value: /var/lib/postgresql/data/pgdata
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volumeMounts:
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- name: data
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mountPath: /var/lib/postgresql/data
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- name: runtime
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mountPath: /var/run/postgresql
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- name: tmp
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mountPath: /tmp
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readinessProbe:
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exec:
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command: ["pg_isready", "-U", "nereus", "-d", "nereus"]
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initialDelaySeconds: 5
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periodSeconds: 5
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timeoutSeconds: 3
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failureThreshold: 6
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livenessProbe:
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exec:
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command: ["pg_isready", "-U", "nereus", "-d", "nereus"]
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initialDelaySeconds: 30
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periodSeconds: 15
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timeoutSeconds: 5
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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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resources:
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requests:
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cpu: 100m
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memory: 256Mi
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limits:
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memory: 1Gi
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volumes:
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- name: runtime
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emptyDir: {}
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- name: tmp
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emptyDir:
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sizeLimit: 64Mi
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volumeClaimTemplates:
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- metadata:
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name: data
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spec:
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accessModes: ["ReadWriteOnce"]
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resources:
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requests:
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storage: 5Gi
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