apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ .Release.Name }}-db
  labels:
    app: {{ .Release.Name }}-db
spec:
  serviceName: {{ .Release.Name }}-db-headless
  replicas: 1
  selector:
    matchLabels:
      app: {{ .Release.Name }}-db
  template:
    metadata:
      labels:
        app: {{ .Release.Name }}-db
    spec:
      containers:
        - name: postgres
          image: {{ .Values.postgres.image }}
          ports:
            - containerPort: 5432
              name: postgres
          env:
            - name: POSTGRES_USER
              value: {{ .Values.postgres.user | quote }}
            - name: POSTGRES_PASSWORD
              value: {{ .Values.postgres.password | quote }}
            - name: POSTGRES_DB
              value: {{ .Values.postgres.database | quote }}
          volumeMounts:
            - name: data
              mountPath: /var/lib/postgresql/data
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes:
          - {{ .Values.postgres.persistence.accessMode }}
        resources:
          requests:
            storage: {{ .Values.postgres.persistence.size }}
        {{- if .Values.postgres.persistence.storageClass }}
        storageClassName: {{ .Values.postgres.persistence.storageClass | quote }}
        {{- end }}