Add CVMFS CI

.github/workflows/cvmfs-ci.yml

@@ -0,0 +1,23 @@
+name: CI with CVMFS
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  test_workflow:
+    runs-on: ubuntu-latest
+    name: Test with CMSSW
+    steps:
+      # checkout the files of this repository
+      - uses: actions/checkout@v4
+      - uses: cvmfs-contrib/github-action-cvmfs@v4
+        with:
+          cvmfs_repositories: 'cms.cern.ch'
+      - name: Set up CMSSW
+        run: | 
+          ls /cvmfs/cms.cern.ch | grep common
+          docker run -v $(pwd):/code -v /cvmfs:/cvmfs:shared -w /home/cmsusr cmscloud/cc7-cms /bin/bash -c "ls /cvmfs/cms.cern.ch"