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Merge pull request #69946 from mateuszmatejczyk/annotation

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Add EndpointsLastTriggerTime annotation.
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k8s-ci-robot 2018-10-22 18:28:47 -07:00 committed by GitHub
commit 2f9b65143e
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19
pkg/apis/core/annotation_key_constants.go
View File

@ -82,4 +82,23 @@ const (
//
// Not all cloud providers support this annotation, though AWS & GCE do.
AnnotationLoadBalancerSourceRangesKey = "service.beta.kubernetes.io/load-balancer-source-ranges"
// EndpointsLastChangeTriggerTime is the annotation key, set for endpoints objects, that
// represents the timestamp (stored as RFC 3339 date-time string, e.g. '2018-10-22T19:32:52.1Z')
// of the last change, of some Pod or Service object, that triggered the endpoints object change.
// In other words, if a Pod / Service changed at time T0, that change was observed by endpoints
// controller at T1, and the Endpoints object was changed at T2, the
// EndpointsLastChangeTriggerTime would be set to T0.
//
// The "endpoints change trigger" here means any Pod or Service change that resulted in the
// Endpoints object change.
//
// Given the definition of the "endpoints change trigger", please note that this annotation will
// be set ONLY for endpoints object changes triggered by either Pod or Service change. If the
// Endpoints object changes due to other reasons, this annotation won't be set (or updated if it's
// already set).
//
// This annotation will be used to compute the in-cluster network programming latency SLI, see
// https://github.com/kubernetes/community/blob/master/sig-scalability/slos/network_programming_latency.md
EndpointsLastChangeTriggerTime = "endpoints.kubernetes.io/last-change-trigger-time"
)

19
staging/src/k8s.io/api/core/v1/annotation_key_constants.go
View File

@ -78,4 +78,23 @@ const (
//
// Not all cloud providers support this annotation, though AWS & GCE do.
AnnotationLoadBalancerSourceRangesKey = "service.beta.kubernetes.io/load-balancer-source-ranges"
// EndpointsLastChangeTriggerTime is the annotation key, set for endpoints objects, that
// represents the timestamp (stored as RFC 3339 date-time string, e.g. '2018-10-22T19:32:52.1Z')
// of the last change, of some Pod or Service object, that triggered the endpoints object change.
// In other words, if a Pod / Service changed at time T0, that change was observed by endpoints
// controller at T1, and the Endpoints object was changed at T2, the
// EndpointsLastChangeTriggerTime would be set to T0.
//
// The "endpoints change trigger" here means any Pod or Service change that resulted in the
// Endpoints object change.
//
// Given the definition of the "endpoints change trigger", please note that this annotation will
// be set ONLY for endpoints object changes triggered by either Pod or Service change. If the
// Endpoints object changes due to other reasons, this annotation won't be set (or updated if it's
// already set).
//
// This annotation will be used to compute the in-cluster network programming latency SLI, see
// https://github.com/kubernetes/community/blob/master/sig-scalability/slos/network_programming_latency.md
EndpointsLastChangeTriggerTime = "endpoints.kubernetes.io/last-change-trigger-time"
)