wishlist: crm conf primitive should complain when an ra-package not installed

[aleksei-burlakov]

When doing
crm configure primitive st-ssh stonith:external/ssh params hostlist=node1
the crm would complain
ERROR: st-ssh: parameter "hostlist" is not known
(because the libglue-devel containing stonith:external/ssh was not installed). The user would rather get the message that stonith:external/ssh or libglue-devel was not installed, than that the parameter "hostlist" is not known.

[liangxin1300]

@aleksei-burlakov Thanks for pointing this!
IMO, maybe crmsh can maintain a map for most used RA, to show which package name that this RA is belonged?
OTOH, does resource-agent already have such a map?
@zzhou1 @gao-yan What do you think? Good to append to the feature list for next release?

[zzhou1]

Agree, this Use case is valid to improve User Experience. From the design wise, the code could be generic and flexible to avoid maintenance burden if any. We could add it to the backlog to do further assessment if possible make it to the next release.

[liangxin1300]

OTOH, does resource-agent already have such a map?

I think it's hard for resource-agent to maintain such a RA-name:package-name map, since for different vendor the package name is different

[aleksei-burlakov]

Maybe, just tell the user the package is not installed, and let him find out which one himself.

[liangxin1300]

I think for most of RA, exitreason from crm_mon can give more details

Although not for this stonith:external/ssh RA:

* st-ssh_start_0 on hanode1 'error' (1): call=26, status='complete', last-rc-change='Mon Nov 14 09:11:19 2022', queued=0ms, exec=1226ms