publish-docker-image.yml

name: Publish Docker Image

on:
  push:
    branches:
      - master
    # Publish semver tags as releases.
    tags:
      - 'v*.*.*'

env:
  # Use docker.io for Docker Hub if empty
  REGISTRY: ghcr.io
  # github.repository as <account>/<repo>
  IMAGE_NAME: ${{ github.repository }}


jobs:
  build:

    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - uses: actions/checkout@v4
      - uses: cachix/install-nix-action@v24
        with:
          extra_nix_config: |
            accept-flake-config = true

      - uses: cachix/cachix-action@v12
        with:
          name: sohi
          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
          skipAddingSubstituter: true

      - name: Log into registry ${{ env.REGISTRY }}
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build
        run: |
          nix run .#container.copyToDockerDaemon

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=branch
            type=semver,pattern={{major}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{version}}

      - name: Tag & push
        run: |
          echo '${{ steps.meta.outputs.tags }}' | while IFS= read -r tag; do
            docker tag webcam-filters:latest $tag
            docker push $tag
          done