docker.yml

# Build and push the Docker image for GitPod
# - Only pushes if push or release
# - Builds without push for PRs to check the Dockerfile

name: Build GitPod Docker image

on:
    pull_request:
    push:
        branches: [master]
    release:
        types: [published]

jobs:
    push_to_registry:
        if: github.repository == 'nextflow-io/training'
        name: Build + Push Gitpod Docker image
        runs-on: ubuntu-latest
        steps:
            - name: Check out the repo
              uses: actions/checkout@v4

            - name: Login to GitHub Container Registry
              uses: docker/login-action@v3
              with:
                  registry: ghcr.io
                  username: ${{ github.repository_owner }}
                  password: ${{ secrets.GITHUB_TOKEN }}

            - name: Build / push latest image
              uses: docker/build-push-action@v5
              if: github.event_name != 'release'
              with:
                  file: .github/gitpod.Dockerfile
                  push: ${{ github.event_name == 'push' }}
                  tags: ghcr.io/nextflow-io/training:latest

            - name: Push release image
              uses: docker/build-push-action@v5
              if: github.event_name == 'release'
              with:
                  file: .github/gitpod.Dockerfile
                  push: true
                  tags: ghcr.io/nextflow-io/training:${{ github.event.release.tag_name }}