add server ci workflow

.github/workflows/docker.yml

@@ -0,0 +1,66 @@
+name: Docker server build
+
+on:
+    # workflow_dispatch:
+    #     inputs:
+    #         python_version:
+    #             description: "Python version"
+    #             type: string
+    #             required: true
+    #             default: "3.8.0"
+    #         pip_version:
+    #             description: "Pip version"
+    #             type: string
+    #             required: true
+    #             default: "23.0.1"
+    #         setuptools_version:
+    #             description: "Setuptools version"
+    #             type: string
+    #             required: true
+    #             default: "69.0.2"
+    #         fwlr_version:
+    #             description: "Flower version"
+    #             type: string
+    #             required: true
+    push
+
+jobs:
+    buildx:
+        name: Test
+        runs-on: ubuntu-22.04
+        steps:
+            - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+
+            - name: Set up QEMU
+              uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0
+              with:
+                  platforms: "arm64"
+
+            - name: Set up Docker Buildx
+              uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
+
+            - name: Login to Docker Hub
+              uses: docker/login-action@343f7c4344506bcbf9b4de18042ae17996df046d # v3.0.0
+              with:
+                username: ${{ secrets.DOCKERHUB_USERNAME }}
+                password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+            - name: Build and push
+              id: build
+              uses: docker/build-push-action@v4a13e500e55cf31b7a5d59a38ab2040ab0f42f56 # v5.1.0
+              with:
+                platforms: linux/amd64,linux/arm64
+                context: src/docker/server
+                build-args: |
+                    PYTHON_VERSION=3.8.0
+                    PIP_VERSION=23.0.1
+                    SETUPTOOLS_VERSION=69.0.2
+                    FLWR_VERSION=1.6.0
+                    UBUNTU_VERSION=22.04
+                tags: flwr/server:1.6.0-py38-ubuntu22.04
+                push: true
+
+            - run: |
+                cat <<EOT >>${GITHUB_STEP_SUMMARY}
+                Server image: ${{steps.build.outputs.imageid}}
+                EOT