Create nightly-docker-image.yml

.github/workflows/nightly-docker-image.yml

@@ -0,0 +1,52 @@
+name: Nightly Docker Image CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+  schedule:
+    - cron: "0 0 * * *" # build nightly!
+
+jobs:
+
+  build:
+
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@master
+      -
+        name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+           ${{ runner.os }}-buildx-${{ github.sha }}
+      -
+        name: Login to Docker Hub
+        uses: docker/login-action@v1 
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+
+      - name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v2
+        with:
+          context: ./
+          file: ./Dockerfile
+          builder: ${{ steps.buildx.outputs.name }}
+          push: true
+          tags:  tonimoreno/snmpcollector:nightly
+          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 }}