publish-docker.yml

name: Publish Docker image

on:
  workflow_dispatch:
  push:
    tags:
      - 'v*'

env:
  IMAGE_NAME: ${{ vars.DOCKERHUB_USERNAME }}/${{ vars.DOCKERHUB_REPO }}

jobs:
  push_to_docker:
    name: Push Docker image to Docker Hub
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read
      attestations: write
      id-token: write
    steps:
      - name: Check out the repo
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Extract metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.IMAGE_NAME }}
        
      - name: Build and push
        id: push
        uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          # TODO: add linux/arm/v7 once a workaround is found for https://github.com/docker/build-push-action/issues/1071
          # without downgrading NodeJS
          platforms: linux/amd64,linux/arm64
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          annotations: ${{ steps.meta.outputs.annotations }}