github action:

add action to build wrapper container

.github/workflows/push_wrapper.yaml

@@ -0,0 +1,40 @@
+name: ci
+
+on:
+  push:
+    branches: main
+
+jobs:
+  main:
+    runs-on: ubuntu-latest
+    steps:
+      - 
+        name: Checkout
+        uses: actions/checkout@v2
+      - id: sha
+        run: echo "::set-output name=sha::$(git describe --always --tags --dirty)"
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Login to DockerHub
+        uses: docker/login-action@v1 
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PW }}
+      -
+        name: Build and push http wrapper
+        id: docker_build
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./http-wrapper/Dockerfile
+          push: true
+          platforms: linux/amd64
+          tags: leonnicolas/rust-opencl-demo-wrapper:latest, leonnicolas/rust-opencl-demo-wrapper:${{ steps.sha.outputs.sha }}
+      -
+        name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}