adding GH Actions workflow on shpod

.github/workflows/docker-build-and-push.yml

@@ -0,0 +1,56 @@
+name: shpod
+
+on:
+  push:
+    branches:
+      - 'mastery'
+ 
+
+jobs:
+  dockerize:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Docker meta
+        id: docker_meta
+        uses: crazy-max/ghaction-docker-meta@v1
+        with:
+          # list of Docker images to use as base name for tags
+          images: |
+            bretfisher/shpod
+          # ghcr.io/bretfisher/shpod
+          # add git short SHA as Docker tag
+          tag-sha: true
+      -
+        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
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1 
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+      #   name: Login to GHCR
+      #   if: github.event_name != 'pull_request'
+      #   uses: docker/login-action@v1
+      #   with:
+      #     registry: ghcr.io
+      #     username: ${{ secrets.GHCR_USERNAME }}
+      #     password: ${{ secrets.GHCR_TOKEN }}
+      # -
+        name: Build and push clock
+        uses: docker/build-push-action@v2
+        with:
+          context: vote
+          platforms: linux/amd64,linux/arm64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.docker_meta.outputs.tags }},bretfisher/shpod:latest
+          labels: ${{ steps.docker_meta.outputs.labels }}