How can I use Docker commands in GitHub Actions?

How can I use Docker commands in GitHub Actions?

You can use Docker commands in GitHub Actions by defining a job that runs in a Docker container. You can specify the container image in your workflow file.

Can you show me an example of a GitHub Actions workflow using Docker?

Sure! Here's a simple example:

name: CI

on: [push]

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
      - name: Build Docker image
        run: |
          docker build -t my-image .
      - name: Run Docker container
        run: |
          docker run my-image

What if I need to push the Docker image to Docker Hub?

You can add a step to log in to Docker Hub and then push the image. Here's how:

      - name: Log in to Docker Hub
        run: |
          echo ${{ secrets.DOCKER_PASSWORD }} | docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
      - name: Push Docker image
        run: |
          docker push my-image