feat: github actions

.github/workflows/main.yml

@@ -0,0 +1,42 @@
+# This is a basic workflow to help you get started with Actions
+
+name: CI to Docker Hub with cache
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches:
+        - 'main'
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    if: "startsWith(github.event.head_commit.message, 'v')"
+    steps:
+    - name: Check Out Repo 
+      uses: actions/checkout@v2
+
+    - name: Login to Docker Hub
+      uses: docker/login-action@v1
+      with:
+        username: ${{ secrets.DOCKER_HUB_USERNAME }}
+        password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+
+    - name: Set up Docker Buildx
+      id: buildx
+      uses: docker/setup-buildx-action@v1
+
+    - name: Build and push
+      id: docker_build
+      uses: docker/build-push-action@v2
+      with:
+        context: ./
+        file: ./Dockerfile
+        push: true
+        tags: ${{ secrets.DOCKER_HUB_USERNAME }}/decisions-compartides:${{ github.event.head_commit.message }}
+
+    - name: Image digest
+      run: echo ${{ steps.docker_build.outputs.digest }}