Running "ceph-salt update" fails with a python stack trace: KeyError

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Environment

SUSE Enterprise Storage 7

Situation

When running "ceph-salt update" the command fails for a node with the following error, excerpt:

SLS: ceph-salt.common.sshkey
State: pkg.installed
Error Description:
An exception occurred in this state: Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/salt/state.py", line 1999, in call
)
File "/usr/lib/python3.6/site-packages/salt/loader.py", line 2036, in wrapper
# improperly loaded
File "/usr/lib/python3.6/site-packages/salt/states/pkg.py", line 1690, in installed
pkgs, refresh = _resolve_capabilities(pkgs, refresh=refresh, **kwargs)
File "/usr/lib/python3.6/site-packages/salt/states/pkg.py", line 1004, in _resolve_capabilities
ret = __salt__["pkg.resolve_capabilities"](pkgs, refresh=refresh, **kwargs)
File "/usr/lib/python3.6/site-packages/salt/modules/zypperpkg.py", line 3130, in resolve_capabilities
refresh_db(root)
File "/usr/lib/python3.6/site-packages/salt/modules/zypperpkg.py", line 1440, in refresh_db
out = __zypper__(root=root).refreshable.call(*refresh_opts)
File "/usr/lib/python3.6/site-packages/salt/modules/zypperpkg.py", line 381, in __call
self.__call_result = __salt__["cmd.run_all"](cmd, **kwargs)
File "/usr/lib/python3.6/site-packages/salt/loader.py", line 1269, in __getitem__
File "/usr/lib/python3.6/site-packages/salt/utils/lazy.py", line 111, in __getitem__
KeyError: 'cmd.run_all'

Resolution

The salt minion service needs to be properly started / restarted using systemd.

Cause

The salt minion service was manually started outside of systemd / not using the systemd service at an earlier point in time using an out dated python / salt version.

Additional Information

The "salt-minion.service" shows the service as "Active: inactive (dead)", however, there are active salt processes on the host listed when running for example:

ps aux | grep salt-minion
root 3070 0.0 0.1 173948 29980 ? Ss Oct01 0:00 /usr/bin/python3 /usr/bin/salt-minion

These processes were started before installing updates that included python and salt updates, since they were started manually, the processes were not restarted automatically after the updates were applied.

It can also be useful to make sure all modules are synced to the minion(s) by on the admin node running:

salt '*' saltutil.sync_all

Disclaimer

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