GitHub Actions locally is easy-peasy

When you want to debug your pipeline using GitHub Actions you may use a tool for running this in local. It gives you opportunity do debugging without any commits to your repo. It is really helpful and easy!

Just do install and use ?act? https://nektosact.com/introduction.html

Instruction for MacBook based on M2 Chip

?? You must have Homebrew and Docker Engine pre-installed

The example how to use act for building and pushing Docker images to GitHub Packages.

Step 1: Installing act

brew install act        

Step 2: Prepare your workflow

Open git project directory and create workflow

mkdir -p .github/workflows        

Create build.yml

touch .github/workflows/build.yml        

name: Build
on: push

jobs:
  build:
    name: Build push Docker image
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Build and push
        run: |
          docker login --username ${{ secrets.GHCR_USER }} --password ${{ secrets.GHCR_TOKEN }} ghcr.io
          docker build . --tag ghcr.io/${{ secrets.GHCR_USER }}/application:latest
          docker push ghcr.io/${{ secrets.GHCR_USER }}/application:latest        

Create a base Dockerfile for your build

echo "FROM alpine" >> Dockerfile        

Step 3: Create file with your secrets

touch .secrets
echo .secrets >> .gitignore        

GHCR_TOKEN=ghp_c....91B
GHCR_USER=username        

You have to create the token here https://github.com/settings/tokens (use classic token with rw-permissions for packages)

Step 4: Run act

act push --container-architecture=linux/arm64 --secret-file .secrets        

Sample output:

?? Good job! Your runner was executed locally and it had no affect to commit history of your repository!