Using connection string secret variable instead of composing it in the config

Author: datapythonista

azure-pipelines.yml

@@ -120,7 +120,7 @@ jobs:
     condition: true
     env:
       SOURCE_PATH: $(Build.SourcesDirectory)/doc/build/html/
-      AZURE_STORAGE_CONNECTION_STRING: "DefaultEndpointsProtocol=https;AccountName=$(AZURE_STORAGE_ACCOUNT);AccountKey=$(AZURE_STORAGE_ACCESS_KEY)"
+      AZURE_STORAGE_CONNECTION_STRING: $(AZURE_STORAGE_CONNECTION_STRING)
 
   - script: |
       if [ "$(Build.SourceBranch)" == "refs/heads/master" ]; then