AppArmor can interfer with ssh connection from dirac-server to dirac-ce

After running for some 24h locally, it is not more possible to ssh into dirac-ce.

The error is after the key is accepted.

Restarting the cluster helps.

Noticed by @gillardo and @arrabito . Being confirmed by @volodymyr.savchenko .

I note that I made a flux deployment of DPPS v0.0 on a private k8s cluster, it's running for 25days now and does not have this issue. I suspect the problem might be with sshd, the way it's setup, is sensitive to something on laptops, e.g. suspend.