fyi, we saw this recur even after switching to an HTTP images mirror. We were seeing deployments fail, and I found a regiond process was again hung in a system call reading a socket from images.maas.io:80. This is our production MAAS so I didn't spend a lot of time debugging it - I kill -9'd the process and MAAS respawned/recovered. But the highlight here is that this does not appear to be specific to SSL connections.
fyi, we saw this recur even after switching to an HTTP images mirror. We were seeing deployments fail, and I found a regiond process was again hung in a system call reading a socket from images.maas.io:80. This is our production MAAS so I didn't spend a lot of time debugging it - I kill -9'd the process and MAAS respawned/ recovered. But the highlight here is that this does not appear to be specific to SSL connections.