[ClusterLabs] Parsing the output of crm_mon

[Ken Gaillot]

On Fri, 2022-03-18 at 08:46 +0100, Ulrich Windl wrote:
> Hi!
> 
> Parsing the output of crm_mon I wonder:
> Is there a collection of sample outputs for pacemaker 1 and 2 formats
> showing all types of resources?

Ideally, any parsing should be done of the XML output generated by --
output-as=xml since 2.0.3 and --as-xml before then (the output is
identical other than the outermost tag).

The XML output is stable and only gets backward-compatible additions
once in a long while, but the text output changes more frequently and
significantly.

There's an RNG schema for it, api-result.rng (where it's installed
depends on your build; in the source repository, make generates it
under xml/api).

> 
> Also I realized that the coutput for clone sets in unfortunate:
> Consider a normal primitive like this:
>   * primitive_name    (ocf::heartbeat:agent_name):  Started host-name
> And a clone set:
>   * Clone Set: clone_name [primitive_name]:
> 
> If you want to filter clone sets by resource agent you're lost there.
> It would have been nicht if the format of clone sets were:
>   * Clone Set: clone_name [primitive_name]
> (ocf::heartbeat:agent_name):
> 
> I see that there's the "-R" option that "expands" the clones similar
> as resource groups like this:
>     * primitive_name     (ocf::heartbeat:agent):    Started host-name
> 
> Regards,
> Ulrich
> 
> 
> 
> 
> 
> 
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-- 
Ken Gaillot <kgaillot at redhat.com>