open62541/.github/workflows/docker.yml

name: Build Docker Image

on:
  # Allows triggering the build manually from the Actions UI
  workflow_dispatch:

  # Automatically builds only when Docker or GDS files are modified,
  # keeping the build time of other standard PRs completely unaffected.
  pull_request:
    paths:
      - 'tools/docker/**'
      - 'examples/ci_server.c'
      - 'tools/certs/**'

jobs:
  build-docker:
    name: Build open62541 Docker Image
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@v7
        with:
          submodules: recursive

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      - name: Build Docker Image
        uses: docker/build-push-action@v7
        with:
          context: .
          file: tools/docker/Dockerfile
          tags: open62541/open62541:latest
          push: false  # Only verify the build, do not push to registry
          cache-from: type=gha
          cache-to: type=gha,mode=max