Test mostly complete workflow

.github/workflows/build-and-push.yaml

@@ -1,5 +1,5 @@
 name: Build and push container image
-
+# try to follow the example here:  https://gist.github.com/Daniel-ltw/552b90800b07c22e4a83dfa68ada6318
 on:
   push:
     branches:
@@ -11,7 +11,8 @@ jobs:
     env:
       DOCKER_CONFIG: $HOME/.docker
       HUB: ${{ vars.HUB }}
-
+    outputs:
+      image-tag: ${{ steps.build-and-push.outputs.image-tag }}
     steps:
       - name: Generate the image name
         run: |
@@ -25,9 +26,9 @@ jobs:
 
       - name: Maximize build space
         if: steps.changed-files.outputs.any_changed == 'true'
-        uses: easimon/maximize-build-space@master
+        uses: easimon/maximize-build-space@v10
         with:
-          root-reserve-mb: 512
+          root-reserve-mb: 1024
           swap-size-mb: 1024
           remove-dotnet: 'true'
 
@@ -53,20 +54,25 @@ jobs:
           password: ${{ secrets.GAR_SECRET_KEY }}
 
       - name: Build the image and push to artifact registry
+        id: build-and-push
         if: steps.changed-files.outputs.any_changed == 'true'
         uses: jupyterhub/repo2docker-action@master
         with:
           # Make sure username & password/token pair matches your registry credentials
           DOCKER_REGISTRY: us-central1-docker.pkg.dev
-          IMAGE_NAME: ucb-datahub-2018/user-images/${IMAGE}
+          IMAGE_NAME: ${IMAGE}
           # Disable pushing a 'latest' tag, as this often just causes confusion
-          # LATEST_TAG_OFF: true
+          LATEST_TAG_OFF: true
           # Put repo contents in /srv/repo, rather than the default (/home/jovyan). The home directory
           # is mounted over by persistent storage when we are using the built image in a JupyterHub, and
           # so all contents put in /home/jovyan are lost. This particularly prevents any 'start' script from
           # working, as it is needed in runtime.
           REPO_DIR: /srv/repo
 
+      - name: print the image name
+        run: |
+          echo ${{ steps.build-and-push.outputs.IMAGE_SHA_TAG }}
+
       # Lets us monitor disks getting full as images get bigger over time
       - name: Show how much disk space is left
         run: df -h

.github/workflows/open-datahub-pr.yaml

@@ -8,6 +8,7 @@ on:
 
 jobs:
   create-pr:
+    if: ${{ github.event.workflow_run.conclusion == 'success' }}
     runs-on: ubuntu-latest
     env:
       HUB: ${{ vars.HUB }}
@@ -22,9 +23,9 @@ jobs:
       - name: Test if vars works
         run: |
           echo "with vars:"
-          echo ${{ vars.HUB }}
+          echo ${{ vars.IMAGE }}
           echo "no vars:"
-          echo ${HUB}
+          echo ${IMAGE}
 
       - name: Maximize build space
         uses: easimon/maximize-build-space@master