headscale/k8s/postgres/postgres-statefulset.yaml

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: postgres
spec:
  serviceName: postgres
  replicas: 1
  selector:
    matchLabels:
      app: postgres
  template:
    metadata:
      labels:
        app: postgres
    spec:
      containers:
      - name: postgres
        image: "postgres:13"
        imagePullPolicy: IfNotPresent
        env:
        - name: POSTGRES_PASSWORD
          valueFrom:
            secretKeyRef:
              name: postgresql
              key: password
        - name: POSTGRES_USER
          value: headscale
        ports:
        - name: postgres
          protocol: TCP
          containerPort: 5432
        livenessProbe:
          tcpSocket:
            port: 5432
          initialDelaySeconds: 30
          timeoutSeconds: 5
          periodSeconds: 15
        volumeMounts:
        - name: pgdata
          mountPath: /var/lib/postgresql/data
  volumeClaimTemplates:
  - metadata:
      name: pgdata
    spec:
      storageClassName: local-path
      accessModes: ["ReadWriteOnce"]
      resources:
        requests:
          storage: 1Gi