feat: Update github actions to push to multiple registries

And add documentation for GH actions local dev/testing

.dockerignore

@@ -13,7 +13,7 @@ coverage
 *.json5
 *.yaml
 *.yml
-
+*.env
 
 # exceptions
 !heroku.yml

.github/push-hook-sample.json

@@ -0,0 +1,3 @@
+{
+  "ref": "refs/heads/edge"
+}

.github/workflows/publishImage.yml

@@ -1,4 +1,14 @@
-name: Publish Docker image to Dockerhub
+name: Publish Docker image to registries
+
+# Builds image and tags based on the type of push event:
+# * branch push -> tag is branch name IE context-mod:edge
+# * release (tag) -> tag is release name IE context-mod:0.13.0
+#
+# Then pushes tagged images to multiple registries
+#
+# Based on
+# https://github.com/docker/build-push-action/blob/master/docs/advanced/push-multi-registries.md
+# https://github.com/docker/metadata-action
 
 on:
   push:
@@ -25,12 +35,22 @@ jobs:
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Login to GitHub Container Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
       
       - name: Extract metadata (tags, labels) for Docker
         id: meta
         uses: docker/metadata-action@v3
         with:
-          images: foxxmd/context-mod
+          images: |
+            foxxmd/context-mod
+            ghcr.io/foxxmd/context-mod
           # generate Docker tags based on the following events/attributes
           tags: |
             type=raw,value=latest,enable=${{ endsWith(github.ref, 'master') }}
@@ -40,7 +60,8 @@ jobs:
             latest=false
       
       - name: Build and push Docker image
-        uses: docker/build-push-action@v2
+        if: ${{ !env.ACT }}
+        uses: docker/build-push-action@v3
         with:
           context: .
           push: ${{ github.event_name != 'pull_request' }}

.gitignore

@@ -336,6 +336,7 @@ web_modules/
 # dotenv environment variables file
 .env
 .env.test
+*.env
 
 # parcel-bundler cache (https://parceljs.org/)
 .cache
@@ -391,6 +392,7 @@ dist
 *.json5
 
 !src/Schema/*.json
+!.github/push-hook-sample.json
 !docs/**/*.json5
 !docs/**/*.yaml
 !docs/**/*.json

act.env.example

@@ -0,0 +1,3 @@
+GITHUB_TOKEN=
+DOCKERHUB_USERNAME=
+DOCKER_PASSWORD=

docs/development.md

@@ -1,5 +1,17 @@
 TODO add more development sections...
 
+# Developing/Testing Github Actions
+
+Use [act](https://github.com/nektos/act) to run Github actions locally.
+
+An example secrets file can be found in the project working directory at [act.env.example](act.env.example)
+
+Modify [push-hook-sample.json](.github/push-hook-sample.json) to point to the local branch you want to run a `push` event trigger on, then run this command from the project working directory:
+
+```bash
+act -e .github/push-hook-sample.json --secret-file act.env
+```
+
 # Mocking Reddit API
 
 Using [MockServer](https://www.mock-server.com/)