github workflow cleanup (#39)

* adding github action workflows

* github workflow cleanup

Author: xavier-hernandez

.github/workflows/docker-build.yml

@@ -0,0 +1,74 @@
+name: branch build & push
+
+on:
+  #schedule:
+  #  - cron: '50 15 * * *'  #Change this to when you want automatic builds
+  push:
+    paths-ignore:
+    - 'README.md'
+    tags: [ 'v*.*.*' ]
+  workflow_dispatch:
+
+env:
+  REGISTRY: docker.io
+  IMAGE_NAME: ${{ secrets.DOCKERHUB_IMAGE_NAME }}
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      # This is used to complete the identity challenge
+      # with sigstore/fulcio when running outside of PRs.
+      id-token: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+        
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        
+      - name: Setup Docker buildx
+        uses: docker/setup-buildx-action@1
+
+      - 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: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+        
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          push: true
+          tags: ${{ secrets.DOCKERHUB_USERNAME }}/${{ secrets.DOCKERHUB_IMAGE_NAME }}:${{steps.vars.outputs.tag}}
+          platforms: linux/amd64,linux/arm/v7,linux/arm64/v8
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          push: true
+          tags: ${{ secrets.DOCKERHUB_USERNAME }}/${{ secrets.DOCKERHUB_IMAGE_NAME }}:latest
+          platforms: linux/amd64,linux/arm/v7,linux/arm64/v8
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new          
+          
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache