push-container.yaml

---
# This workflow uses actions that are not certified by GitHub.
# They are provided by a third-party and are governed by
# separate terms of service, privacy policy, and support
# documentation.

name: Create and publish a Docker image

on:
  push:
    branches: ['main']
    paths:
      - Dockerfile
      - src/**/*
      - Project.toml
  # to be able to trigger a manual build
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

permissions:
  contents: read
  packages: write

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest

    steps:
      - 
        name: Checkout repository
        uses: actions/checkout@v3
      - 
        name: Log in to the Container registry
        uses: docker/login-action@v2
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - 
        name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
      - 
        name: Build and push Docker image
        uses: docker/build-push-action@v4
        with:
          context: .
          file: Dockerfile
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}