feat: add module3-6

module3/k8s/kustomize/postgres/kustomization.yaml

@@ -0,0 +1,8 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - namespace-postgres.yaml
+  - statefulset-postgres-scrumlr.yaml
+  - service-postgres-scrumlr.yaml
+  - persistentvolumeclaim-postgres-scrumlr.yaml
+  - secret-postgres-scrumlr.yaml

module3/k8s/kustomize/postgres/namespace-postgres.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: postgres

module3/k8s/kustomize/postgres/persistentvolumeclaim-postgres-scrumlr.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: postgres-scrumlr
+  namespace: postgres
+  labels:
+    app.kubernetes.io/name: "postgres"
+    app.kubernetes.io/component: "database"
+    app.kubernetes.io/part-of: "scrumlr"
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 8Gi

module3/k8s/kustomize/postgres/secret-postgres-scrumlr.yaml

@@ -0,0 +1,14 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: postgres-scrumlr
+  namespace: postgres
+  labels:
+    app.kubernetes.io/name: "postgres"
+    app.kubernetes.io/component: "database"
+    app.kubernetes.io/part-of: "scrumlr"
+type: Opaque
+data:
+  # echo -n 'super-secret-password' | base64
+  POSTGRES_USER: c2NydW1scg==  # base64 encoded value of 'scrumlr'
+  POSTGRES_PASSWORD: c3VwZXItc2VjcmV0LXBhc3N3b3Jk  # base64 encoded value of 'super-secret-password'

module3/k8s/kustomize/postgres/service-postgres-scrumlr.yaml

@@ -0,0 +1,18 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: postgres-scrumlr
+  namespace: postgres
+  labels:
+    app.kubernetes.io/name: "postgres"
+    app.kubernetes.io/component: "database"
+    app.kubernetes.io/part-of: "scrumlr"
+spec:
+  type: ClusterIP
+  ports:
+  - port: 5432
+    targetPort: 5432
+  selector:
+    app.kubernetes.io/name: "postgres"
+    app.kubernetes.io/component: "database"
+    app.kubernetes.io/part-of: "scrumlr"

module3/k8s/kustomize/postgres/statefulset-postgres-scrumlr.yaml

@@ -0,0 +1,54 @@
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: postgres-scrumlr
+  namespace: postgres
+  labels:
+    app.kubernetes.io/name: "postgres"
+    app.kubernetes.io/component: "database"
+    app.kubernetes.io/part-of: "scrumlr"
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: "postgres"
+      app.kubernetes.io/component: "database"
+      app.kubernetes.io/part-of: "scrumlr"
+  serviceName: "postgres-scrumlr"
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: "postgres"
+        app.kubernetes.io/component: "database"
+        app.kubernetes.io/part-of: "scrumlr"
+    spec:
+      containers:
+      - name: postgres
+        image: postgres:17.4
+        resources:
+          requests:
+            memory: "256Mi"
+            cpu: "20m"
+          limits:
+            memory: "256Mi"
+        env:
+        - name: POSTGRES_USER
+          valueFrom:
+            secretKeyRef:
+              name: postgres-scrumlr
+              key: POSTGRES_USER
+        - name: POSTGRES_PASSWORD
+          valueFrom:
+            secretKeyRef:
+              name: postgres-scrumlr
+              key: POSTGRES_PASSWORD
+        ports:
+          - containerPort: 5432
+        volumeMounts:
+        - name: postgres
+          mountPath: /var/lib/postgresql/data
+          subPath: postgres
+      volumes:
+      - name: postgres
+        persistentVolumeClaim:
+          claimName: postgres-scrumlr