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Map target infos of endpoints to prometheus meta labels. (#3770)

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This commit is contained in:
Yecheng Fu 2018-03-09 18:07:00 +08:00 committed by Brian Brazil
parent bf7d87aed2
commit 56ed29fbf7
3 changed files with 29 additions and 18 deletions
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15
discovery/kubernetes/endpoints.go
View file

@ -178,10 +178,12 @@ func endpointsSource(ep *apiv1.Endpoints) string {
} }
const ( const (
endpointsNameLabel = metaLabelPrefix + "endpoints_name" endpointsNameLabel = metaLabelPrefix + "endpoints_name"
endpointReadyLabel = metaLabelPrefix + "endpoint_ready" endpointReadyLabel = metaLabelPrefix + "endpoint_ready"
endpointPortNameLabel = metaLabelPrefix + "endpoint_port_name" endpointPortNameLabel = metaLabelPrefix + "endpoint_port_name"
endpointPortProtocolLabel = metaLabelPrefix + "endpoint_port_protocol" endpointPortProtocolLabel = metaLabelPrefix + "endpoint_port_protocol"
endpointAddressTargetKindLabel = metaLabelPrefix + "endpoint_address_target_kind"
endpointAddressTargetNameLabel = metaLabelPrefix + "endpoint_address_target_name"
) )
func (e *Endpoints) buildEndpoints(eps *apiv1.Endpoints) *targetgroup.Group { func (e *Endpoints) buildEndpoints(eps *apiv1.Endpoints) *targetgroup.Group {
@ -210,6 +212,11 @@ func (e *Endpoints) buildEndpoints(eps *apiv1.Endpoints) *targetgroup.Group {
endpointReadyLabel: lv(ready), endpointReadyLabel: lv(ready),
} }
if addr.TargetRef != nil {
target[model.LabelName(endpointAddressTargetKindLabel)] = lv(addr.TargetRef.Kind)
target[model.LabelName(endpointAddressTargetNameLabel)] = lv(addr.TargetRef.Name)
}
pod := e.resolvePodRef(addr.TargetRef) pod := e.resolvePodRef(addr.TargetRef)
if pod == nil { if pod == nil {
// This target is not a Pod, so don't continue with Pod specific logic. // This target is not a Pod, so don't continue with Pod specific logic.

30
discovery/kubernetes/endpoints_test.go
View file

@ -199,20 +199,22 @@ func TestEndpointsDiscoveryAdd(t *testing.T) {
{ {
Targets: []model.LabelSet{ Targets: []model.LabelSet{
{ {
"__address__": "4.3.2.1:9000", "__address__": "4.3.2.1:9000",
"__meta_kubernetes_endpoint_port_name": "testport", "__meta_kubernetes_endpoint_port_name": "testport",
"__meta_kubernetes_endpoint_port_protocol": "TCP", "__meta_kubernetes_endpoint_port_protocol": "TCP",
"__meta_kubernetes_endpoint_ready": "true", "__meta_kubernetes_endpoint_ready": "true",
"__meta_kubernetes_pod_name": "testpod", "__meta_kubernetes_endpoint_address_target_kind": "Pod",
"__meta_kubernetes_pod_ip": "1.2.3.4", "__meta_kubernetes_endpoint_address_target_name": "testpod",
"__meta_kubernetes_pod_ready": "unknown", "__meta_kubernetes_pod_name": "testpod",
"__meta_kubernetes_pod_node_name": "testnode", "__meta_kubernetes_pod_ip": "1.2.3.4",
"__meta_kubernetes_pod_host_ip": "2.3.4.5", "__meta_kubernetes_pod_ready": "unknown",
"__meta_kubernetes_pod_container_name": "c1", "__meta_kubernetes_pod_node_name": "testnode",
"__meta_kubernetes_pod_container_port_name": "mainport", "__meta_kubernetes_pod_host_ip": "2.3.4.5",
"__meta_kubernetes_pod_container_port_number": "9000", "__meta_kubernetes_pod_container_name": "c1",
"__meta_kubernetes_pod_container_port_protocol": "TCP", "__meta_kubernetes_pod_container_port_name": "mainport",
"__meta_kubernetes_pod_uid": "deadbeef", "__meta_kubernetes_pod_container_port_number": "9000",
"__meta_kubernetes_pod_container_port_protocol": "TCP",
"__meta_kubernetes_pod_uid": "deadbeef",
}, },
{ {
"__address__": "1.2.3.4:9001", "__address__": "1.2.3.4:9001",

2
docs/configuration/configuration.md
View file

@ -670,6 +670,8 @@ Available meta labels:
* `__meta_kubernetes_endpoint_ready`: Set to `true` or `false` for the endpoint's ready state. * `__meta_kubernetes_endpoint_ready`: Set to `true` or `false` for the endpoint's ready state.
* `__meta_kubernetes_endpoint_port_name`: Name of the endpoint port. * `__meta_kubernetes_endpoint_port_name`: Name of the endpoint port.
* `__meta_kubernetes_endpoint_port_protocol`: Protocol of the endpoint port. * `__meta_kubernetes_endpoint_port_protocol`: Protocol of the endpoint port.
* `__meta_kubernetes_endpoint_address_target_kind`: Kind of the endpoint address target.
* `__meta_kubernetes_endpoint_address_target_name`: Name of the endpoint address target.
* If the endpoints belong to a service, all labels of the `role: service` discovery are attached. * If the endpoints belong to a service, all labels of the `role: service` discovery are attached.
* For all targets backed by a pod, all labels of the `role: pod` discovery are attached. * For all targets backed by a pod, all labels of the `role: pod` discovery are attached.