add github action

.github/workflows/main.yml

@@ -0,0 +1,48 @@
+# This is a basic workflow to help you get started with Actions
+
+name: Build And Deploy to DockerHub 
+
+# Controls when the action will run. Triggers the workflow on push or pull request
+# events but only for the master branch
+on:
+  push:
+    branches:
+      - master
+env:
+  GITHUB_RUN_ID: ${{ github.run_id }}
+  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  IMAGE_REPO: rsamit/lumen
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      - id: release
+        uses: rymndhng/release-on-push-action@master
+        with:
+          bump_version_scheme: patch 
+
+      - name: Check Output Parameters
+        run: |
+          echo "Got tag name ${{ steps.release.outputs.tag_name }}"
+          echo "Got release version ${{ steps.release.outputs.version }}":
+          echo "Got dockerhub username ${{ secrets.DOCKER_IO_REGISTRY_USER }}":
+          echo "Got dockerhub password ${{ secrets.DOCKER_IO_REGISTRY_PASSWORD }}":
+          echo "Got dockerhub image repo ${{ env.IMAGE_REPO }}":
+
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+
+      # Build docker images and push
+      - name: Build and push Docker images
+        uses: docker/build-push-action@v1.1.0
+        with:
+          username: ${{ secrets.DOCKER_IO_REGISTRY_USER }}
+          password: ${{ secrets.DOCKER_IO_REGISTRY_PASSWORD }}
+          repository: ${{ env.IMAGE_REPO }}
+          tags: latest, ${{ steps.release.outputs.tag_name }}