Driver Options for Docker Cloudstor Azure Plugin?

Use a different storage endpoint, such as core.cloudapi.de, you can specify it when you install the plugin:

docker plugin install --alias cloudstor:${STORAGE_ACCOUNT} --grant-all-permissions docker4x/cloudstor:18.06.1-ce-azure2 CLOUD_PLATFORM=AZURE AZURE_STORAGE_ACCOUNT_KEY="${STORAGE_KEY}" AZURE_STORAGE_ACCOUNT="${STORAGE_ACCOUNT}" AZURE_STORAGE_ENDPOINT="core.windows.net" DEBUG=1

 
By default, the Public Azure Storage endpoint is used.