readded postgres deployment

.github/workflows/stripe-to-invoice.yml

@@ -40,13 +40,67 @@ jobs:
           push: true
           tags: docker.io/kimjunte/stripe_to_invoice:${{ env.GITHUB_REF_SLUG }}
 
+  # --------------------------------------------------
+  # DEPLOY POSTGRES (DEV + PROD)
+  # --------------------------------------------------
+  deploy-db:
+    name: Deploy Postgres (PV + PVC + Deployment)
+    runs-on: mealcraft-runners
+    needs: build
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install kubectl
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y curl ca-certificates gettext
+          curl -LO "https://dl.k8s.io/release/$(curl -sL https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
+          sudo install -m 0755 kubectl /usr/local/bin/kubectl
+
+      - name: Configure kubeconfig (in-cluster)
+        run: |
+          KUBE_HOST="https://$KUBERNETES_SERVICE_HOST:$KUBERNETES_SERVICE_PORT"
+          SA_TOKEN=$(cat /var/run/secrets/kubernetes.io/serviceaccount/token)
+          CA_CERT=/var/run/secrets/kubernetes.io/serviceaccount/ca.crt
+
+          kubectl config set-cluster microk8s \
+            --server="$KUBE_HOST" \
+            --certificate-authority="$CA_CERT"
+
+          kubectl config set-credentials runner --token="$SA_TOKEN"
+
+          kubectl config set-context runner-context \
+            --cluster=microk8s \
+            --user=runner
+
+          kubectl config use-context runner-context
+
+      - name: Decide environment
+        run: |
+          if [[ "$GITHUB_REF" == refs/heads/main || "$GITHUB_REF" == refs/tags/* || "$GITHUB_REF" == refs/heads/release/* ]]; then
+            echo "ENV=prod" >> $GITHUB_ENV
+            echo "NAMESPACE=default" >> $GITHUB_ENV
+            echo "PG_VOLUME=stripe_invoice_prod" >> $GITHUB_ENV
+          else
+            echo "ENV=dev" >> $GITHUB_ENV
+            echo "NAMESPACE=dev" >> $GITHUB_ENV
+            echo "PG_VOLUME=stripe_invoice_dev" >> $GITHUB_ENV
+          fi
+
+      - name: Apply Postgres manifests
+        run: |
+          export ENV NAMESPACE PG_VOLUME
+          envsubst < db/k8s/postgres/stripe-to-invoice-db.yaml | kubectl apply -f -
+
+
   # --------------------------------------------------
   # APPLY DB + APP SECRETS
   # --------------------------------------------------
   secrets:
     name: Apply runtime secrets
     runs-on: mealcraft-runners
-    needs: build
+    needs: deploy-db
 
     steps:
       - uses: actions/checkout@v4

db/k8s/postgres/stripe-to-invoice-db.yaml

@@ -0,0 +1,88 @@
+# --------------------------------------------------
+# PersistentVolume (hostPath on mist)
+# --------------------------------------------------
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: postgres-${ENV}-pv
+spec:
+  capacity:
+    storage: 20Gi
+  accessModes:
+    - ReadWriteOnce
+  persistentVolumeReclaimPolicy: Retain
+  storageClassName: local-storage
+  hostPath:
+    path: /home/kimjunte/k8s_storage/postgres/${PG_VOLUME}
+
+---
+# --------------------------------------------------
+# PersistentVolumeClaim
+# --------------------------------------------------
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: postgres-${ENV}-pvc
+  namespace: ${NAMESPACE}
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 20Gi
+  storageClassName: local-storage
+
+---
+# --------------------------------------------------
+# PostgreSQL Deployment
+# --------------------------------------------------
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: postgres-${ENV}
+  namespace: ${NAMESPACE}
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: postgres
+      env: ${ENV}
+  template:
+    metadata:
+      labels:
+        app: postgres
+        env: ${ENV}
+    spec:
+      containers:
+        - name: postgres
+          image: postgres:16
+          ports:
+            - containerPort: 5432
+          envFrom:
+            - secretRef:
+                name: postgres-${ENV}
+          volumeMounts:
+            - name: postgres-data
+              mountPath: /var/lib/postgresql/data
+      volumes:
+        - name: postgres-data
+          persistentVolumeClaim:
+            claimName: postgres-${ENV}-pvc
+
+---
+# --------------------------------------------------
+# PostgreSQL Service (internal)
+# --------------------------------------------------
+apiVersion: v1
+kind: Service
+metadata:
+  name: postgres-${ENV}
+  namespace: ${NAMESPACE}
+spec:
+  type: ClusterIP
+  selector:
+    app: postgres
+    env: ${ENV}
+  ports:
+    - port: 5432
+      targetPort: 5432