Workflow improvement

.github/workflows/main.yaml

@@ -14,19 +14,17 @@ env:
   SERVICES: db community thread comment vote search popular
 
 jobs:
-  setup-build-publish-deploy:
-    name: Setup, Build, Publish, and Deploy
+  check-cluster:
+    name: Check if GKE cluster exists
     runs-on: ubuntu-latest
-    environment: production
+    outputs:
+      exists: ${{ steps.set-exists.outputs.exists }}
 
     permissions:
       contents: read
       id-token: write
 
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
       - name: Authenticate to Google Cloud
         uses: google-github-actions/auth@v2
         with:
@@ -37,30 +35,46 @@ jobs:
         with:
           project_id: ${{ env.PROJECT_ID }}
 
-      - name: Check if GKE cluster exists
-        id: check-cluster
+      - id: set-exists
         run: |
           if gcloud container clusters describe $CLUSTER_NAME --zone $ZONE --project $PROJECT_ID; then
             echo "exists=true" >> $GITHUB_OUTPUT
           else
-            echo "Cluster does not exist"
             echo "exists=false" >> $GITHUB_OUTPUT
           fi
 
+  build-publish-deploy:
+    name: Build, Publish, and Deploy
+    needs: check-cluster
+    if: needs.check-cluster.outputs.exists == 'true'
+    runs-on: ubuntu-latest
+    environment: production
+
+    permissions:
+      contents: read
+      id-token: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Authenticate to Google Cloud
+        uses: google-github-actions/auth@v2
+        with:
+          credentials_json: ${{ secrets.GCP_SA_KEY }}
+
+      - name: Set up Google Cloud SDK
+        uses: google-github-actions/setup-gcloud@v2
+        with:
+          project_id: ${{ env.PROJECT_ID }}
+
       - name: Set up GKE credentials
-        if: steps.check-cluster.outputs.exists == 'true'
         uses: google-github-actions/get-gke-credentials@v2
         with:
           project_id: ${{ env.PROJECT_ID }}
           cluster_name: ${{ env.CLUSTER_NAME }}
           location: ${{ env.ZONE }}
 
-      - name: Cluster not created. Skip deployment
-        if: steps.check-cluster.outputs.exists == 'false'
-        run: |
-          echo "Cluster doesn't exist — skipping deployment."
-          exit 0
-
       - name: Configure Docker for GCR
         run: |
           gcloud auth configure-docker --quiet