docker-publish.yml

name: Tailscale K8S Image

on:
  push:
    branches: [ main, testing ]
    tags: ["v*.*.*"]
  pull_request:
    branches: [ main, testing ]

env:
  REGISTRY: ghcr.io/element-hq
  BASE_TAG: ${{ github.ref_name }}
  IMAGE_NAME: tailscale-k8s

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

    permissions:
      contents: read
      packages: write

    steps:
    - name: Checkout repository
      uses: actions/checkout@v2

    - name: Log into registry ${{ env.REGISTRY }}
      uses: docker/login-action@v1
      with:
        registry: ${{ env.REGISTRY }}
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Extract Docker metadata
      id: meta
      uses: docker/metadata-action@v3
      with:
        images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

    - name: Build and push Docker image
      uses: docker/build-push-action@v2
      with:
        push: ${{ github.event_name != 'pull_request' }}
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}
      if: contains(github.ref_name, '/merge') == false

    - name: Build and push Docker image for PR
      uses: docker/build-push-action@v2
      with:
        push: ${{ github.event_name != 'pull_request' }}
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}
      if: contains(github.ref_name, '/merge')