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Automate Builds

Let's automatically build the Docker image on every push to the main branch.

Assignment

Use the setup-gcloud action to authenticate with GCP.

Use the Workload Identity Federation setup.

Update Your GitHub Action Workflow

Find the full ID of the Workload Identity Provider. You will need this to configure the auth GitHub action.

gcloud iam workload-identity-pools providers describe "my-repo" \
  --location="global" \
  --workload-identity-pool="github" \
  --format="value(name)"

After the step that builds the app with npm run build, add the setup-gcloud steps to set up the gcloud CLI and authenticate with GCP. Set workload_identity_provider to the output of the last command, and set service_account to the email address of the "Cloud Run Deployer" service account you created in the previous lesson. Include the permissions settings in the update to the workflow.
Finally, add a step to build the Docker image and push it to Google Artifact Registry. Replace PROJECT_ID with the output of gcloud config get-value project.
```
gcloud builds submit --tag us-central1-docker.pkg.dev/PROJECT_ID/notely-ar-repo/notely:latest .
```
Commit and push your changes to GitHub, then merge your PR to trigger the CD workflow. Confirm the GitHub Action runs and successfully builds and pushes the Docker image to Google Artifact Registry.

Paste the URL of your GitHub repo into the box and run the GitHub checks.