Continuous integration build and push to dockerhub (#851)

* Github Action build and push to dockerhub
* Update CONTRIBUTORS

.github/workflows/dockerhub.yml

@@ -0,0 +1,52 @@
+name: CI to Docker Hub
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Extract metadata for Docker
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          images: ${{ secrets.DOCKERHUB_USERNAME }}/${{ secrets.DOCKERHUB_REPOSITORY }}
+
+      - uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+      - name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v2
+        with:
+          context: ./
+          file: ./Dockerfile
+          builder: ${{ steps.buildx.outputs.name }}
+          push: true
+          labels: ${{ steps.meta.outputs.labels }}
+          tags: ${{ steps.meta.outputs.tags }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache
+
+      - name: Image digest
+        run: echo ${{ steps.docker_build.outputs.digest }}

CONTRIBUTORS

@@ -29,8 +29,8 @@ Glandos
 Heimen Stoffels
 James Leong
 Jocelyn Delalande
-Lucas Verney
 Luc Didry
+Lucas Verney
 Marien Fressinaud
 Mathieu Leplatre
 mcnesium
@@ -44,6 +44,7 @@ Richard Coates
 THANOS SIOURDAKIS
 Toover
 Xavier Mehrenberger
+Youe Graillot
 zorun
 
 The manual drawings are from Coline Billon, they are under CC BY 4.0.