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lib/promscrape/discovery/kubernetes: add __meta_kubernetes_endpoints_label_* and __meta_kuberntes_endpoints_annotation_* labels to role: endpoints

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This syncs kubernetes SD with Prometheus 2.25
See 617c56f55a
This commit is contained in:
Aliaksandr Valialkin 2021-02-15 02:46:14 +02:00
parent 01d82cbf21
commit 38d7e96602
3 changed files with 22 additions and 10 deletions
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1
docs/CHANGELOG.md
View file

@ -9,6 +9,7 @@
* FEATURE: vmalert: add `-datasource.appendTypePrefix` command-line option for querying both Prometheus and Graphite datasource in cluster version of VictoriaMetrics. See [these docs](https://victoriametrics.github.io/vmalert.html#graphite) for details.
* FEATURE: vmauth: add ability to route requests from a single user to multiple destinations depending on the requested paths. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1064
* FEATURE: remove dependency on external programs such as `cat`, `grep` and `cut` when detecting cpu and memory limits inside Docker or LXC container.
* FEATURE: vmagent: add `__meta_kubernetes_endpoints_label_*`, `__meta_kubernetes_endpoints_labelpresent_*`, `__meta_kubernetes_endpoints_annotation_*` and `__meta_kubernetes_endpoints_annotationpresent_*` labels for `role: endpoints` in Kubernetes service discovery. These labels where added in Prometheus 2.25.
* BUGFIX: properly convert regexp tag filters containing escaped dots to non-regexp tag filters. For example, `{foo=~"bar\.baz"}` should be converted to `{foo="bar.baz"}`. Previously it was incorrectly converted to `{foo="bar\.baz"}`, which could result in missing time series for this tag filter.
* BUGFIX: do not spam error logs when discovering Docker Swarm targets without dedicated IP. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1028 .

1
lib/promscrape/discovery/kubernetes/endpoints.go
View file

@ -183,6 +183,7 @@ func getEndpointLabelsForAddressAndPort(podPortsSeen map[*Pod][]int, eps *Endpoi
if svc != nil {
svc.appendCommonLabels(m)
}
eps.Metadata.registerLabelsAndAnnotations("__meta_kubernetes_endpoints", m)
if ea.TargetRef.Kind != "Pod" || p == nil {
return m
}

30
lib/promscrape/discovery/kubernetes/endpoints_test.go
View file

@ -42,7 +42,13 @@ func TestParseEndpointsListSuccess(t *testing.T) {
"selfLink": "/api/v1/namespaces/default/endpoints/kubernetes",
"uid": "0972c7d9-c267-4b93-a090-a417eeb9b385",
"resourceVersion": "150",
"creationTimestamp": "2020-03-16T20:44:25Z"
"creationTimestamp": "2020-03-16T20:44:25Z",
"labels": {
"foo": "bar"
},
"annotations": {
"x": "y"
}
},
"subsets": [
{
@ -91,15 +97,19 @@ func TestParseEndpointsListSuccess(t *testing.T) {
expectedLabelss := [][]prompbmarshal.Label{
discoveryutils.GetSortedLabels(map[string]string{
"__address__": "172.17.0.2:8443",
"__meta_kubernetes_endpoint_address_target_kind": "Pod",
"__meta_kubernetes_endpoint_address_target_name": "coredns-6955765f44-lnp6t",
"__meta_kubernetes_endpoint_hostname": "aaa.bbb",
"__meta_kubernetes_endpoint_node_name": "foobar",
"__meta_kubernetes_endpoint_port_name": "https",
"__meta_kubernetes_endpoint_port_protocol": "TCP",
"__meta_kubernetes_endpoint_ready": "true",
"__meta_kubernetes_endpoints_name": "kubernetes",
"__meta_kubernetes_namespace": "default",
"__meta_kubernetes_endpoint_address_target_kind": "Pod",
"__meta_kubernetes_endpoint_address_target_name": "coredns-6955765f44-lnp6t",
"__meta_kubernetes_endpoint_hostname": "aaa.bbb",
"__meta_kubernetes_endpoint_node_name": "foobar",
"__meta_kubernetes_endpoint_port_name": "https",
"__meta_kubernetes_endpoint_port_protocol": "TCP",
"__meta_kubernetes_endpoint_ready": "true",
"__meta_kubernetes_endpoints_name": "kubernetes",
"__meta_kubernetes_endpoints_annotation_x": "y",
"__meta_kubernetes_endpoints_annotationpresent_x": "true",
"__meta_kubernetes_endpoints_label_foo": "bar",
"__meta_kubernetes_endpoints_labelpresent_foo": "true",
"__meta_kubernetes_namespace": "default",
}),
}
if !reflect.DeepEqual(sortedLabelss, expectedLabelss) {