If for any cause the operator processing a mon failover is restarted, the
mon canary pods created in order to get the right placement for this
kind of pods can remain in <pending> state forever.
The following labels have been added to the mon canary deployments:
"mon_type" = "canary"
"canary_pvc_name" = <PVC name used for the canary pod>
A separate <removeCanaryDeployments> has been implemented for
removing the dependence of the variable <canaryCleanup>.
This function uses the <canary> labels to obtain the <real>
and <existing> list of mon canary deployments in any moment.
This change, by itself, will avoid most of the problems with
pending canary pods, but as second safe guard measure a call to this
function has been added in the health check, to <force> a canary pod
deletion if the cluster of monitors is healthy and complete (this implies
that no canary pods should be present)
Resolves#3764
[test ceph]
Signed-off-by: Juan Miguel Olmo Martínez <jolmomar@redhat.com>
Juan Miguel Olmo Martínez
b4ae856c70