Adding publish to docker

.github/main.workflow

@@ -1,83 +0,0 @@
-workflow "Pull Request" {
-  on = "pull_request"
-  resolves = ["Docker Lint [PR]", "Shell Lint [PR]", "Test [PR]"]
-}
-
-action "Docker Lint [PR]" {
-  uses = "docker://replicated/dockerfilelint"
-  args = "Dockerfile"
-}
-
-action "Shell Lint [PR]" {
-  uses = "actions/bin/shellcheck@master"
-  args = "entrypoint.sh"
-}
-
-action "Test [PR]" {
-  uses = "actions/bin/bats@master"
-  args = "test/*.bats"
-}
-
-workflow "Build and Publish" {
-  resolves = [
-    "Docker Lint",
-    "Test",
-    "Docker Login",
-    "Docker Publish",
-  ]
-  on = "push"
-}
-
-action "Master Branch" {
-  uses = "actions/bin/filter@master"
-  args = "branch master"
-}
-
-action "Docker Lint" {
-  uses = "docker://replicated/dockerfilelint"
-  needs = ["Master Branch"]
-  args = "Dockerfile"
-}
-
-action "Shell Lint" {
-  uses = "actions/bin/shellcheck@master"
-  needs = ["Master Branch"]
-  args = "entrypoint.sh"
-}
-
-action "Test" {
-  uses = "actions/bin/bats@master"
-  needs = ["Master Branch"]
-  args = "test/*.bats"
-}
-
-action "Build" {
-  uses = "actions/docker/cli@master"
-  needs = [
-    "Docker Lint",
-    "Test",
-    "Shell Lint",
-  ]
-  args = "build -t yarn ."
-}
-
-action "Docker Tag" {
-  uses = "actions/docker/tag@master"
-  args = "yarn borales/yarn --no-latest"
-  needs = ["Build"]
-}
-
-action "Docker Login" {
-  uses = "actions/docker/login@master"
-  secrets = ["DOCKER_PASSWORD", "DOCKER_USERNAME"]
-  needs = ["Build"]
-}
-
-action "Docker Publish" {
-  uses = "actions/docker/cli@master"
-  needs = [
-    "Docker Login",
-    "Docker Tag",
-  ]
-  args = "push borales/yarn"
-}

.github/workflows/docker-publish.yml

@@ -0,0 +1,21 @@
+name: Publish Docker image
+
+on:
+  push:
+    tags:
+      - 'v*' # Push events to matching v*, i.e. v1.0, v20.15.10
+
+jobs:
+  build:
+    name: Create Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@master
+      - name: Publish to Registry
+        uses: elgohr/Publish-Docker-Github-Action@master
+        with:
+          name: borales/yarn
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+          cache: true

README.md

@@ -22,6 +22,8 @@ jobs:
           cmd: install
 ```
 
+> `cmd` value will be used as a command for Yarn
+
 ### Secrets
 
 * `NPM_AUTH_TOKEN` - **Optional**. The token to use for authentication with the npm registry. Required for `yarn publish` ([more info](https://docs.npmjs.com/getting-started/working_with_tokens))