esphome-docs/.github/workflows/docker.yml

name: Build Docker image

on:
  workflow_dispatch:
  push:
    branches:
      - current
    paths:
      - requirements.txt
      - Dockerfile
      - .github/workflows/docker.yml

permissions:
  contents: read
  packages: write

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout source code
        uses: actions/checkout@v3.5.1
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      -
        name: Login to DockerHub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKER_USER }}
          password: ${{ secrets.DOCKER_PASSWORD }}
      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}
      -
        name: Build and push
        id: docker_build
        uses: docker/build-push-action@v4
        with:
          context: .
          push: true
          tags: |
            esphome/esphome-docs:latest
            ghcr.io/esphome/esphome-docs:latest            
          cache-from: ghcr.io/esphome/esphome-docs:latest