gns3-server/.github/workflows/docker-build.yml

name: Build and Push Docker Image

on:
  workflow_dispatch:
  push:
    tags:
      - v2.*
      - v3.*

jobs:
  build:
    runs-on: ubuntu-latest
    env:
      DOCKERHUB_ORG: ${{ vars.DOCKERHUB_ORG || 'gns3' }}

    steps:
    - name: Checkout code
      uses: actions/checkout@v7

    - name: Check for stable release
      id: ver
      run: |
        TAG="${GITHUB_REF_NAME#v}"
        echo "tag=$TAG" >> $GITHUB_OUTPUT
        if echo "$TAG" | grep -qE '^[0-9]+\.[0-9]+\.[0-9]+$'; then
          echo "stable=true" >> $GITHUB_OUTPUT
        else
          echo "stable=false" >> $GITHUB_OUTPUT
        fi

    - name: Set up Docker Buildx
      if: steps.ver.outputs.stable == 'true'
      uses: docker/setup-buildx-action@v3

    - name: Login to GitHub Container Registry
      if: steps.ver.outputs.stable == 'true'
      uses: docker/login-action@v4
      with:
        registry: ghcr.io
        username: ${{ github.repository_owner }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Login to Docker Hub
      if: steps.ver.outputs.stable == 'true'
      uses: docker/login-action@v4
      with:
        registry: docker.io
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}

    - name: Build and push
      if: steps.ver.outputs.stable == 'true'
      uses: docker/build-push-action@v6
      with:
        context: .
        push: true
        tags: |
          ${{ env.DOCKERHUB_ORG }}/${{ github.event.repository.name }}:${{ steps.ver.outputs.tag }}
          ${{ env.DOCKERHUB_ORG }}/${{ github.event.repository.name }}:latest
          ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ steps.ver.outputs.tag }}
          ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}:latest