Hi @assurehedgedoc which channel in 17.06 did you try?
stable should have cloudstor pre-installed. Did you use
test by any chance?
Please note that the installation commandline for Azure is:
docker plugin install --alias cloudstor:azure --grant-all-permissions docker4x/cloudstor:17.06.0-ce-azure1 CLOUD_PLATFORM=AZURE AZURE_STORAGE_ACCOUNT_KEY="$SA_KEY" AZURE_STORAGE_ACCOUNT="$SA" DEBUG=1
where $SA is a storage account (either one of the five created by the Docker4Azure ARM template or any other Storage Account that you create/manage independently) and $SA_KEY is the access key for the storage account.