Getting Started with GitHub Actions - CI/CD Firebase deploy

GitHub Actions are used to automatically run a pipeline on a repository. Uses cases can be to run tests on your code, build your application, and/or deploy your application.

First, you need the Firebase CLI installed, which you can do with npm install -g firebase-tools.

If you don't have set up Firebase hosting for your project yet, you can run:

firebase init hosting

If you already have set up a Firebase project with hosting you can run:

firebase init hosting:github

Follow the CLI prompts.

Set Up a Workflow ​

The CLI prompts should have added the secrets to your GitHub repository and might have set up some workflow files for you. You can alter those, or create a file .github/workflows/deploy.yml. Add this to your file, and make changes according to your project.

name: Deploy
on:
  push:
    branches:
      - main
jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: npm ci
      - run: npm run build
      - uses: FirebaseExtended/action-hosting-deploy@v0
        with:
          repoToken: '${{ secrets.GITHUB_TOKEN }}'
          firebaseServiceAccount: '${{ secrets.FIREBASE_SERVICE_ACCOUNT_PLANT_POINTS }}'
          channelId: live

This tells the file to run when a commit is pushed to the branch main. Then it runs the steps to checkout the code uses: actions/checkout, install dependencies npm ci, build your application with a script in package.json npm run build, and uses FirebaseExtended/action-hosting-deploy to deploy the web app.

Make sure that firebase.json and .firebasearc are present in your codebase for this action to work. You can add the property entryPoint to point toward the folder they are located.

You can read more about the configuration for the Firebase action here.