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Wire event watcher for LateConnections events #887
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Jun 17, 2020
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| package terminationobserver | ||
|
|
||
| import ( | ||
| v1 "k8s.io/api/core/v1" | ||
| "k8s.io/component-base/metrics" | ||
| ) | ||
|
|
||
| // ProcessLateConnectionEvents increment openshift_kube_apiserver_lateconnections_count counter for apiserver reported in LateConnections event. | ||
| // The apiserver received connections very late in the graceful termination process, possibly a sign for a broken load balancer setup. | ||
| func ProcessLateConnectionEvents(event *v1.Event) error { | ||
| // best-effort to guess the source (apiserver) from event | ||
| name := event.InvolvedObject.Name | ||
| if len(name) == 0 { | ||
| name = event.Source.Component | ||
| } | ||
| if len(name) == 0 { | ||
| name = event.Source.Host | ||
| } | ||
| apiServerLateConnectionsCounter.WithLabelValues(event.InvolvedObject.Name).Inc() | ||
| return nil | ||
| } | ||
|
|
||
| var ( | ||
| apiServerLateConnectionsCounter = metrics.NewCounterVec(&metrics.CounterOpts{ | ||
| Name: "openshift_kube_apiserver_lateconnections_count", | ||
| Help: "Report observed late connection count for each API server instance over time", | ||
| }, []string{"name"}) | ||
| ) |
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152 changes: 152 additions & 0 deletions
152
vendor/github.com/openshift/library-go/pkg/operator/eventwatch/controller.go
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11 changes: 11 additions & 0 deletions
11
vendor/github.com/openshift/library-go/pkg/operator/resource/resourceapply/generic.go
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30 changes: 30 additions & 0 deletions
30
vendor/github.com/openshift/library-go/pkg/operator/resource/resourceapply/storage.go
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5
.../openshift/library-go/pkg/operator/staticresourcecontroller/static_resource_controller.go
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@mfojtik who's producing this event, asking for a friend 😉
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openshift/origin#25126