adding missing postgres e2e test files

config/samples/crd_v1alpha1_databaserequest_postgres.yaml

@@ -0,0 +1,14 @@
+apiVersion: crd.lagoon.sh/v1alpha1
+kind: DatabaseRequest
+metadata:
+  labels:
+    app.kubernetes.io/name: databaserequest
+    app.kubernetes.io/instance: databaserequest-postgres-sample
+    app.kubernetes.io/part-of: dbaas-controller
+    app.kubernetes.io/managed-by: kustomize
+    app.kubernetes.io/created-by: dbaas-controller
+  name: databaserequest-postgres-sample
+spec:
+  name: first-postgres-db
+  scope: development
+  type: postgres

config/samples/crd_v1alpha1_relationaldatabaseprovider_postgres.yaml

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+apiVersion: crd.lagoon.sh/v1alpha1
+kind: RelationalDatabaseProvider
+metadata:
+  labels:
+    app.kubernetes.io/name: dbaas-controller
+    app.kubernetes.io/managed-by: kustomize
+  name: relationaldatabaseprovider-postgres-sample
+spec:
+  type: postgres
+  scope: development
+  connections:
+    - name: primary-test-postgres-connection
+      hostname: postgres-service.postgres
+      passwordSecretRef:
+        name: postgres-secret
+        namespace: postgres
+      port: 5432
+      username: postgres
+      enabled: true

test/e2e/testdata/postgre-client-pod.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: postgres-init-pod
+  namespace: postgres
+spec:
+  restartPolicy: Never
+  containers:
+  - name: postgres-client
+    image: postgres:13
+    command: ["sh", "-c"]
+    args:
+    - |
+      PGPASSWORD=e2e-postgres-password psql -h postgres-service.postgres -U postgres -c "CREATE DATABASE IF NOT EXISTS seed-database;"

test/e2e/testdata/postgres.yaml

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+apiVersion: v1
+kind: Namespace
+metadata:
+  name: postgres
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: postgres
+  namespace: postgres
+  labels:
+    app: postgres
+spec:
+  containers:
+  - name: postgres
+    image: postgres:13
+    env:
+    - name: POSTGRES_PASSWORD
+      value: "e2e-postgres-password"
+    ports:
+    - containerPort: 5432
+      name: postgres
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: postgres-service
+  namespace: postgres
+spec:
+  selector:
+    app: postgres
+  ports:
+  - protocol: TCP
+    port: 5432
+    targetPort: 5432
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: postgres-secret
+  namespace: postgres
+type: Opaque
+data:
+  password: ZTJlLXBvc3RncmVzLXBhc3N3b3Jk