Push image to Artifact Registry

.github/workflows/build-docs.yml

@@ -6,7 +6,14 @@ jobs:
   build-docs:
     runs-on: ubuntu-latest
     env:
+      PROJECT_ID: ${{ secrets.GKE_PROJECT }}
       DOTNET_NOLOGO: true
+      GKE_CLUSTER: web-cluster
+      GKE_ZONE: us-central1-a
+      REPOSITORY_ZONE: us-central1
+      REPOSITORY_NAME: nodatime-org
+      DEPLOYMENT_NAME: nodatime-test
+      IMAGE: nodatime.org
 
     steps:
     - name: Check out nodatime.org
@@ -26,8 +33,41 @@ jobs:
         repository: nodatime/nodatime.serialization
         path: nodatime.serialization
 
+    - name: Set up Google auth
+      uses: "google-github-actions/auth@v2"
+      with:
+          credentials_json: "${{ secrets.GKE_SA_KEY }}"
+
+    - name: "Set up gcloud"
+      uses: "google-github-actions/setup-gcloud@v2"
+
+    - name: "Configure Docker auth"
+      run: |-
+        gcloud auth configure-docker ${REPOSITORY_ZONE}-docker.pkg.dev --quiet
+
+    - name "Construct the image tag"
+      run: |-
+        echo "IMAGE_TAG=${REPOSITORY_ZONE}-docker.pkg.dev/$PROJECT_ID/$REPOSITORY_NAME/$IMAGE:$GITHUB_RUN_ID" >> $GITHUB_ENV
+
+    # Note: we don't use GITHUB_SHA in the tag, as we have
+    # potentially three different relevant commits.
     - name: Docker build
       run: |-
         docker build \
+          --tag $IMAGE_TAG \
           -f nodatime.org/build/Dockerfile \
-          .
+          .
+
+    # Push the Docker image to Google Artifact Registry
+    - name: Publish
+      run: |-
+        docker push $IMAGE_TAG
+
+    # Get the GKE credentials so we can deploy to the cluster
+    - uses: google-github-actions/get-gke-credentials@db150f2cc60d1716e61922b832eae71d2a45938f
+      with:
+        cluster_name: ${{ env.GKE_CLUSTER }}
+        location: ${{ env.GKE_ZONE }}
+        credentials: ${{ secrets.GKE_SA_KEY }}
+
+    # TODO: Update the (test) deployment