Services on Ubuntu do not start on boot after extension is activated on datadisks

Hey There,

We experienced a problem on our Ubuntu 16.04-LTS VMs once again, after enabling the Azure Disk Encryption Extension for datadisks with the -EcnryptFormatAll option.

After deployment of the VM, we enabled the Encryption via Powershell Script and started customizing / installing our software and configurations.

Now after completing the process and reboot the machine, the startup of services like Docker, Postgresql etc. fails. Our idea is, that the python deamon starting the extension and mounting our encryted disk ist not fast enough, so at startup time our services will fail because the depend on data that resides on the datadisk.

Is there any known workaround for this?

We tried to set our services to start after python has mounted the disk but were not successful with it right now.

Greetings Fabian