apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: ledger
  namespace: example-apps
spec:
  serviceName: ledger-headless
  replicas: 3
  podManagementPolicy: OrderedReady
  updateStrategy:
    type: RollingUpdate
    rollingUpdate:
      partition: 0
  selector:
    matchLabels:
      app.kubernetes.io/name: ledger
  template:
    metadata:
      labels:
        app.kubernetes.io/name: ledger
    spec:
      terminationGracePeriodSeconds: 30
      securityContext:
        runAsNonRoot: true
        runAsUser: 10001
        fsGroup: 10001
      containers:
        - name: ledger
          image: registry.example.invalid/example-org/ledger:2.1.0
          ports:
            - containerPort: 5432
              name: db
          volumeMounts:
            - name: data
              mountPath: /var/lib/ledger
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes:
          - ReadWriteOnce
        storageClassName: example-fast
        resources:
          requests:
            storage: 10Gi