setup buildx

[jmikedupont2]

To use the docker/setup-buildx-action with GitHub Actions to build and test your Dockerized application, follow these steps:

1. Set Up Your Dockerized Application: Ensure your application is Dockerized and includes a Dockerfile.

2. Create a Docker Compose File (Optional): If needed, create a docker-compose.yml file to define your application's services and dependencies.

3. Configure GitHub Repository: Create a GitHub repository for your project if you haven't already. Push your Dockerized application code, including the Dockerfile and docker-compose file (if used), into this repository.

4. Create a GitHub Actions Workflow: Create a .github/workflows/docker.yml file for your GitHub Actions workflow. This workflow will utilize docker/setup-buildx-action to build and test your Dockerized application.

   name: Docker Workflow
   
   on: [push]
   
   jobs:
    build:
      runs-on: ubuntu-latest
   
      steps:
      - name: Checkout code
        uses: actions/checkout@v2
   
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
   
      - name: Build Docker image
        run: |
          docker buildx create --use
          docker buildx inspect default --bootstrap
          docker buildx build --tag myapp:latest .
   
      - name: Run tests
        run: docker-compose up --abort-on-container-exit

5. Testing Locally: To test your Dockerized application locally:

   • Install Docker on your local machine.
   • Clone your GitHub repository.
   • Navigate to the project directory and run docker-compose up to start your application's containers.
   • Access your application at http://localhost (or the appropriate URL) in your web browser.

6. Customize as Needed: Customize the workflow, Dockerfile, and docker-compose file according to your specific project requirements.

Make sure to replace <base_image> with the actual base image you want to use in your Dockerfile. This example incorporates the docker/setup-buildx-action for improved Docker building capabilities within GitHub Actions.