added github action to push image and some other fixes

.devcontainer/cuda-opengl/devcontainer.json

@@ -2,6 +2,9 @@
 // README at: https://github.com/devcontainers/templates/tree/main/src/ubuntu
 {
 	"name": "L-CAS Humble CUDA-OpenGL Devcontainer",
+	// Use the below image to not build locally (pushed by GitHub Action)
+	// disable the "build" section below in this case
+	// "image": "lcas.lincoln.ac.uk/devcontainer/lcas/rob2002:cuda-opengl-main",
 	"build": {
 		"dockerfile": "../Dockerfile",
 		"args": {

.github/workflows/dev-container.yml

@@ -7,10 +7,14 @@ on:
   push:
     branches:
       - main
-
+    tags:
+      - '*'
+
 jobs:
   build_devcontainer:
-    runs-on: ubuntu-latest
+    # only run for LCAS repositories
+    if: github.repository_owner == 'LCAS' || github.repository_owner == 'lcas'
+    runs-on: lcas
     strategy:
       matrix:
         config: 
@@ -23,11 +27,36 @@ jobs:
       - name: "image name from repo name"
         id: docker_image_name
         run: echo "docker_image=${{ github.repository }}" | tr '[:upper:]' '[:lower:]' |sed 's/[^0-9,a-z,A-Z,=,_,\/]/-/g' >>${GITHUB_OUTPUT}
-      - name: Build and run dev container task
+
+      - name: Docker Login LCAS
+        # don't attempt to login for PRs
+        if: ${{ github.event_name != 'pull_request' }} 
+        # You may pin to the exact commit or the version.
+        # uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
+        uses: docker/login-action@v2
+        with:
+          # Server address of Docker registry. If not set then will default to Docker Hub
+          registry: lcas.lincoln.ac.uk
+          # Username used to log against the Docker registry
+          username: ${{ secrets.LCAS_REGISTRY_PUSHER }}
+          # Password or personal access token used to log against the Docker registry
+          password: ${{ secrets.LCAS_REGISTRY_TOKEN }}
+
+      - name: Build dev container task
+        if: ${{ github.event_name == 'pull_request' }} 
         uses: devcontainers/[email protected]
         with:
           imageName: lcas.lincoln.ac.uk/devcontainer/${{ steps.docker_image_name.outputs.docker_image }}
           configFile: ./.devcontainer/${{ matrix.config }}/devcontainer.json
           push: never
           imageTag: ${{ matrix.config }}-${{ env.BRANCH }}
+          #runCmd: "bash .devcontainer/run-ci.sh"
+      - name: Build and push dev container image
+        if: ${{ github.event_name != 'pull_request' }} 
+        uses: devcontainers/[email protected]
+        with:
+          imageName: lcas.lincoln.ac.uk/devcontainer/${{ steps.docker_image_name.outputs.docker_image }}
+          configFile: ./.devcontainer/${{ matrix.config }}/devcontainer.json
+          push: always
+          imageTag: ${{ matrix.config }}-${{ env.BRANCH }}
           #runCmd: "bash .devcontainer/run-ci.sh"