Add blackbox probing of slurm endpoints #147
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Add probing of slurmctld and slurmd ports using the prometheus blackbox exporter. Will allow monitoring/alerting on slurm{ctld,d} being up/reachable.
"Default" (=
everythinglayout) behaviour is to put the blackbox exporter on the prometheus node, on the basis that that removes a failure point. Is that appropriate?Note there are slurm exporters for prometheus but they seem slightly fragile/dependent on specific versions. This is anyway more at the infra layer so probably still useful.
TODO:
Could also add (probably as another job) blackbox probing for e.g. DNS?