Merge pull request #60 from phillc/releases

Move docker release publishing to github actions

Author: phillc

.github/workflows/docker-canary.yml

@@ -0,0 +1,16 @@
+name: Publish Docker Release
+on:
+  release:
+    types: [published]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: Publish latest to Registry
+      uses: elgohr/Publish-Docker-Github-Action@master
+      with:
+        name: linode/linode-cloud-controller-manager
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_PASSWORD }}
+        tags: "latest,${{ GITHUB_REF }}"