postgres-instance

- uri: template://default-provisioners/postgres-instance
  type: postgres-instance
  description: Provisions a dedicated PostgreSQL instance.
  init: |
    randomUsername: user-{{ randAlpha 8 }}
    randomPassword: {{ randAlphaNum 16 | quote }}    
  state: |
    service: pg-{{ .SourceWorkload }}-{{ substr 0 8 .Guid | lower }}
    username: {{ dig "username" .Init.randomUsername .State | quote }}
    password: {{ dig "password" .Init.randomPassword .State | quote }}    
  outputs: |
    host: {{ .State.service }}
    port: 5432
    username: {{ .State.username }}
    password: {{ encodeSecretRef .State.service "password" }}    
  manifests: |
    - apiVersion: v1
      kind: Secret
      metadata:
        name: {{ .State.service }}
        {{ if ne .Namespace "" }}
        namespace: {{ .Namespace }}
        {{ end }}
        annotations:
          k8s.score.dev/source-workload: {{ .SourceWorkload }}
          k8s.score.dev/resource-uid: {{ .Uid }}
          k8s.score.dev/resource-guid: {{ .Guid }}
        labels:
          app.kubernetes.io/managed-by: score-k8s
          app.kubernetes.io/name: {{ .State.service }}
          app.kubernetes.io/instance: {{ .State.service }}
      data:
        password: {{ .State.password | b64enc }}
    - apiVersion: apps/v1
      kind: StatefulSet
      metadata:
        name: {{ .State.service }}
        {{ if ne .Namespace "" }}
        namespace: {{ .Namespace }}
        {{ end }}
        annotations:
          k8s.score.dev/source-workload: {{ .SourceWorkload }}
          k8s.score.dev/resource-uid: {{ .Uid }}
          k8s.score.dev/resource-guid: {{ .Guid }}
        labels:
          app.kubernetes.io/managed-by: score-k8s
          app.kubernetes.io/name: {{ .State.service }}
          app.kubernetes.io/instance: {{ .State.service }}
      spec:
        replicas: 1
        serviceName: {{ .State.service }}
        selector:
          matchLabels:
            app.kubernetes.io/instance: {{ .State.service }}
        template:
          metadata:
            labels:
              app.kubernetes.io/managed-by: score-k8s
              app.kubernetes.io/name: {{ .State.service }}
              app.kubernetes.io/instance: {{ .State.service }}
            annotations:
              k8s.score.dev/source-workload: {{ .SourceWorkload }}
              k8s.score.dev/resource-uid: {{ .Uid }}
              k8s.score.dev/resource-guid: {{ .Guid }}
          spec:
            automountServiceAccountToken: false
            containers:
            - name: postgres-db
              image: mirror.gcr.io/postgres:17-alpine
              ports:
              - name: postgres
                containerPort: 5432
              env:
              - name: PGDATA
                value: /var/lib/postgresql/data/pgdata
              - name: POSTGRES_USER
                value: {{ .State.username | quote }}
              - name: POSTGRES_PASSWORD
                valueFrom:
                  secretKeyRef:
                    name: {{ .State.service }}
                    key: password
              volumeMounts:
              - name: pv-data
                mountPath: /var/lib/postgresql/data
              securityContext:
                runAsUser: 1000
                runAsGroup: 1000
                allowPrivilegeEscalation: false
                privileged: false
                capabilities:
                  drop:
                    - ALL
              readinessProbe:
                exec:
                  command:
                  - pg_isready
                  - -U
                  - {{ .State.username | quote }}
                periodSeconds: 3
            securityContext:
              runAsNonRoot: true
              fsGroup: 1000
              seccompProfile:
                type: RuntimeDefault
        volumeClaimTemplates:
        - metadata:
            name: pv-data
            annotations:
              k8s.score.dev/source-workload: {{ .SourceWorkload }}
              k8s.score.dev/resource-uid: {{ .Uid }}
              k8s.score.dev/resource-guid: {{ .Guid }}
            labels:
              app.kubernetes.io/managed-by: score-k8s
              app.kubernetes.io/name: {{ .State.service }}
              app.kubernetes.io/instance: {{ .State.service }}
          spec:
            accessModes: ["ReadWriteOnce"]
            resources:
              requests:
                storage: 1Gi
    - apiVersion: v1
      kind: Service
      metadata:
        name: {{ .State.service }}
        {{ if ne .Namespace "" }}
        namespace: {{ .Namespace }}
        {{ end }}
        annotations:
          k8s.score.dev/source-workload: {{ .SourceWorkload }}
          k8s.score.dev/resource-uid: {{ .Uid }}
          k8s.score.dev/resource-guid: {{ .Guid }}
        labels:
          app.kubernetes.io/managed-by: score-k8s
          app.kubernetes.io/name: {{ .State.service }}
          app.kubernetes.io/instance: {{ .State.service }}
      spec:
        selector:
          app.kubernetes.io/instance: {{ .State.service }}
        type: ClusterIP
        ports:
        - port: 5432
          targetPort: 5432    
  expected_outputs:
    - host
    - port
    - username
    - password