After initiating Cisco DNA Appliance version 188.8.131.52 and starting an upgrade towards 184.108.40.206 in order to get to 220.127.116.11 I got a strange issue where the appliance system update went fine but the switch to 18.104.22.168 was disabled until Application Updates did not finish.
The real issue here was that Application Updates of Cloud Connectivity – Data Hub got stuck on 12% for 4 days without timing out or finishing. Tried several appliance reboots from CIMC which didn’t help.
Below are the steps that helped sort out Application Updates issues with container pods being stuck at the point of pooling images from the cloud and creation on the Cisco DNA appliance. Of course, this was a long troubleshoot and here I listed only maglev CLI commands that were useful.
I SSH into the appliance and started digging the maglev CLI tool.