Microk8s: Can't 'sudo snap remove microk8s'

[carmine]

Installed microk8s
Installed kubeflow.
Rather than remove kubeflow, I decided to just remove microk8s. But, it errors:

$ sudo snap remove microk8s
error: cannot perform the following tasks:
- Stop snap "microk8s" services ([start snap.microk8s.daemon-apiserver.service snap.microk8s.daemon-docker.service snap.microk8s.daemon-etcd.service snap.microk8s.daemon-proxy.service snap.microk8s.daemon-scheduler.service snap.microk8s.daemon-kubelet.service snap.microk8s.daemon-controller-manager.service] failed with exit status 5: Failed to start snap.microk8s.daemon-apiserver.service: Unit snap.microk8s.daemon-apiserver.service not found.
Failed to start snap.microk8s.daemon-docker.service: Unit snap.microk8s.daemon-docker.service not found.
Failed to start snap.microk8s.daemon-etcd.service: Unit snap.microk8s.daemon-etcd.service not found.
Failed to start snap.microk8s.daemon-proxy.service: Unit snap.microk8s.daemon-proxy.service not found.
Failed to start snap.microk8s.daemon-scheduler.service: Unit snap.microk8s.daemon-scheduler.service not found.
Failed to start snap.microk8s.daemon-kubelet.service: Unit snap.microk8s.daemon-kubelet.service not found.
Failed to start snap.microk8s.daemon-controller-manager.service: Unit snap.microk8s.daemon-controller-manager.service not found.
)

After that, still can't remove it.

$ snap list
Name              Version  Rev   Tracking  Developer         Notes
core              16-2.33  4830  stable    canonical         core
kubectl           1.10.3   405   stable    canonical         classic
microk8s          v1.10.3  55    beta      canonical         disabled,classic

[ktsakalozos]

Hi @carmine,

The failures in removing the snap are most probably because of mounted endpoints not cleaning up on time. If you do a cat /proc/mounts | grep microk8s you should be able to see what is still mounted. Then you can umount the endpoints manually and try to re-remove the snap.

This has been addressed in the snap in edge. We will be doing a release to beta soon in the meantime could you use the edge channel? sudo snap install microk8s --classic --edge

Thanks.

[carmine]

Thx, will do.

[arno01]

@carmine make sure you run microk8s.reset before snap remove microk8s
https://github.com/juju-solutions/microk8s/blob/608e/README.md#removing-microk8s

[ktsakalozos]

@carmine the recent release that recently hit beta has addressed a number of cases where microk8s is not removed cleanly. Based on our private discussions I gather you are not seeing this issue anymore.

I am closing this for now, please reopen if you see this again. Thank you for reporting the issue.