apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ include "postgresql.fullname" . }}
  labels:
    {{- include "postgresql.labels" . | nindent 4 }}
spec:
  serviceName: {{ include "postgresql.fullname" . }}-headless
  replicas: 1
  selector:
    matchLabels:
      {{- include "postgresql.selectorLabels" . | nindent 6 }}
  template:
    metadata:
      labels:
        {{- include "postgresql.selectorLabels" . | nindent 8 }}
    spec:
      securityContext:
        {{- toYaml .Values.podSecurityContext | nindent 8 }}
      containers:
        - name: postgresql
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          securityContext:
            {{- toYaml .Values.securityContext | nindent 12 }}
          ports:
            - name: postgresql
              containerPort: 5432
              protocol: TCP
          envFrom:
            - secretRef:
                name: {{ include "postgresql.fullname" . }}
          env:
            - name: PGDATA
              value: /var/lib/postgresql/data/pgdata
          volumeMounts:
            - name: data
              mountPath: /var/lib/postgresql/data
            - name: config
              mountPath: /etc/postgresql/postgresql.conf
              subPath: postgresql.conf
          args:
            - "-c"
            - "config_file=/etc/postgresql/postgresql.conf"
          livenessProbe:
            exec:
              command:
                - sh
                - -c
                - pg_isready -U $POSTGRES_USER -d $POSTGRES_DB
            initialDelaySeconds: 30
            periodSeconds: 10
            failureThreshold: 6
          readinessProbe:
            exec:
              command:
                - sh
                - -c
                - pg_isready -U $POSTGRES_USER -d $POSTGRES_DB
            initialDelaySeconds: 5
            periodSeconds: 5
          resources:
            {{- toYaml .Values.resources | nindent 12 }}
      volumes:
        - name: data
          persistentVolumeClaim:
            claimName: {{ include "postgresql.fullname" . }}-data
        - name: config
          configMap:
            name: {{ include "postgresql.fullname" . }}-config