GitHub Actions 1 cheatsheet

GitHub Actions 1: Reuse and deploy

4 common GitHub Actions 1 tasks.

Define a reusable workflow

Make a workflow callable from other workflows.

on:
  workflow_call:
    inputs:
      environment:
        type: string
        required: true

Call a reusable workflow

Run a reusable workflow from a job.

jobs:
  deploy:
    uses: ./.github/workflows/deploy.yml
    with:
      environment: staging
    secrets: inherit

Build and push a Docker image

- uses: docker/login-action@v3
  with:
    registry: ghcr.io
    username: ${{ github.actor }}
    password: ${{ secrets.GITHUB_TOKEN }}
- uses: docker/build-push-action@v6
  with:
    push: true
    tags: ghcr.io/${{ github.repository }}:${{ github.sha }}

Create a release from a tag

Create a GitHub release with generated notes using the preinstalled gh CLI.

- run: gh release create "$GITHUB_REF_NAME" --generate-notes
  env:
    GH_TOKEN: ${{ github.token }}