How can I deploy my Docker application using GitHub Actions?

How can I deploy my Docker application using GitHub Actions?

You can deploy your Docker application using GitHub Actions by creating a workflow file in your repository. This file will define the steps to build your Docker image and push it to a container registry.

What should I include in the workflow file?

In the workflow file, you should include steps for checking out your code, setting up Docker, building the image, and pushing it to a registry like Docker Hub or GitHub Container Registry.

Can you provide a sample workflow file?

Sure! Here's a basic example:

name: CI

on:
  push:
    branches:
      - main

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

What are secrets in GitHub Actions?

Secrets in GitHub Actions are encrypted environment variables that you can use to store sensitive information, like API keys or passwords, without exposing them in your code.