add docker ci/cd

.github/workflows/docker-ci.yml

@@ -0,0 +1,62 @@
+name: run Docker CI
+
+on:
+  push:
+    branches:
+      - main
+      - master
+  pull_request:
+    branches:
+      - main
+      - master
+
+env:
+  CPM_SOURCE_CACHE: ${{ github.workspace }}/cpm_modules
+
+jobs:
+  build:
+    name: CI build docker
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      #
+      # configure and build in GitHub CI as smoke test
+
+      # speed up configure step by installing boost as system lib, also use Ninja for faster builds
+      - name: speed up configure and build
+        shell: bash
+        run: sudo apt-get update && sudo apt-get install -y libboost-all-dev ninja-build
+
+      # use GitHub cache to cache dependencies
+      - uses: actions/cache@v2
+        with:
+          path: "**/cpm_modules"
+          key: ${{ github.workflow }}-cpm-modules-${{ hashFiles('**/CMakeLists.txt', '**/*.cmake') }}
+
+      - name: configure
+        run: cmake -S standalone -B build -G Ninja -D CMAKE_BUILD_TYPE=Release
+
+      - name: build
+        run: cmake --build build
+
+      #
+      # end GitHub CI local build
+
+      - name: set up Docker Buildx for multi-platform support
+        uses: docker/setup-buildx-action@v1
+
+      - name: set up QEMU for multi-platform support
+        uses: docker/setup-qemu-action@v1
+
+      # build image but do NOT push to DockerHub
+      - name: build Docker image
+        uses: docker/build-push-action@v2
+        with:
+          file: ./standalone/Dockerfile
+          platforms: linux/amd64,linux/arm64
+          push: false
+          tags: ${{ secrets.DOCKERHUB_USERNAME }}/webapi:ci
+          cache-from: type=gha
+          cache-to: type=gha,mode=max