Build Docker Image using Github Actions

.github/workflows/build.yml

@@ -0,0 +1,15 @@
+name: build-image
+
+on:
+  push:
+    branches-ignore:
+      - master
+
+jobs:
+  build-image:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Build the image
+        uses: docker/build-push-action@v2
+        with:
+          push: false

.github/workflows/tag-and-push.yml

@@ -0,0 +1,23 @@
+name: tag-and-push-image
+
+on:
+  schedule:
+    - cron: '30 2 * * *'
+  push:
+    branches:
+      - master
+      # XXX run on push to branch 'actions' is only temporary for GH Actions testing!
+      - actions
+
+jobs:
+  build-tag-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Load image tags
+        run: 'echo "IMAGE_TAGS=$(cat tags)" >> $GITHUB_ENV'
+      - name: Build the image
+        uses: docker/build-push-action@v2
+        with:
+          push: false
+          tags: ${{ env.IMAGE_TAGS }},latest

tags

@@ -1,3 +1 @@
-1
-1.15
-1.15.4
+1,1.15,1.15.4