Upgrade to Groovy 4.0.23, move to Github Actions and GHCR

.github/workflows/main.yml

@@ -0,0 +1,28 @@
+name: Main
+
+on:
+  push:
+    branches:
+      - master
+  # schedule:
+  #   - cron: '0 9 * * MON'
+
+# These environment variables are used in the image builder script used to
+# build Docker images
+env:
+  PACKAGES_TOKEN: ${{ secrets.GITHUB_TOKEN }}     # Token for GHCR
+  PACKAGES_USERNAME: ${{ github.actor }}          # Username for GHCR
+  REPO_NAME: ${{ github.event.repository.name }}  # Repository name (so image_builder can check if it's testing itself)
+  TYPE: ${{ github.event_name }}                  # Event type (push or schedule) (so image_builder doesn't push images to GHCR on schedule)
+
+jobs:
+
+  build-publish-trigger:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Build image, test it, push it dockerhub, notify dependents
+        run: ./pipe_build_up_test.sh

README.md

@@ -1,6 +1,6 @@
-[![CircleCI](https://circleci.com/gh/cyber-dojo-languages/groovy-spock.svg?style=svg)](https://circleci.com/gh/cyber-dojo-languages/groovy-spock)
+[![Github Action (main)](https://github.com/cyber-dojo-languages/groovy-spock/actions/workflows/main.yml/badge.svg)](https://github.com/cyber-dojo-languages/groovy-spock/actions)
 
-## display_name="Groovy, Spock"
-## image_name="cyberdojofoundation/groovy_spock"
+## display_name="Groovy 4.0.23, Spock 2.4"
+## image_name="ghcr.io/cyber-dojo-languages/groovy_spock"
 
 ![cyber-dojo.org home page](https://github.com/cyber-dojo/cyber-dojo/blob/master/shared/home_page_snapshot.png)

docker/Dockerfile.base

@@ -1,7 +1,7 @@
-FROM cyberdojofoundation/groovy:b88c952
+FROM ghcr.io/cyber-dojo-languages/groovy:a7445f4
 LABEL [email protected]
 
-ARG VERSION=4.0.9
+ARG VERSION=4.0.23
 
 RUN mkdir /groovy
 

docker/image_name.json

@@ -1,3 +1,3 @@
 {
-  "image_name": "cyberdojofoundation/groovy_spock"
+  "image_name": "ghcr.io/cyber-dojo-languages/groovy_spock"
 }