feat: deploy image in internal GCP registry (#45)

.github/workflows/docker-publish.yaml

@@ -20,7 +20,8 @@ jobs:
         platform:
           - linux/amd64
     permissions:
-      contents: read
+      id-token: write
+      contents: write
       packages: write
 
     steps:
@@ -40,6 +41,22 @@ jobs:
       - name: Docker Setup Buildx
         uses: docker/setup-buildx-action@v3
 
+      - name: "Authenticate to Google Cloud"
+        id: google-auth
+        uses: "google-github-actions/auth@v1"
+        with:
+          token_format: "access_token"
+          workload_identity_provider: "${{ secrets.GCP_PRD_GITHUB_WIF }}"
+          service_account: "${{ secrets.GCP_PRD_GITHUB_SA_DOCKER_REGISTRY }}"
+          create_credentials_file: true
+
+      - name: Login to the registry - production
+        uses: docker/login-action@v2
+        with:
+          registry: asia-docker.pkg.dev
+          username: oauth2accesstoken
+          password: "${{ steps.google-auth.outputs.access_token }}"
+
       - name: Docker Login
         uses: docker/login-action@v3
         with:
@@ -59,6 +76,7 @@ jobs:
         with:
           images: |
             zilliqa/otterscan
+            asia-docker.pkg.dev/prj-p-devops-services-tvwmrf63/zilliqa-public/otterscan
           tags: |
             type=ref,enable=false,priority=600,prefix=pr-,suffix=,event=pr
             type=ref,event=branch