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kube-state-metrics
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revert componentstatus

This commit is contained in:
Andy Xie 2018-01-05 21:18:23 +08:00
parent 310ce6c4b1
commit c797923132
5 changed files with 0 additions and 197 deletions
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1
Documentation/README.md
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@ -6,7 +6,6 @@ Any contribution to improving this documentation or adding sample usages will be
Per group of metrics there is one file for each metrics. See each file for specific documentation about the exposed metrics:
* [ComponentStatus Metrics](componentstatus-metrics.md)
* [CronJob Metrics](cronjob-metrics.md)
* [DaemonSet Metrics](daemonset-metrics.md)
* [Deployment Metrics](deployment-metrics.md)

5
Documentation/componentstatus-metrics.md
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@ -1,5 +0,0 @@
# Service Metrics
| Metric name| Metric type | Labels/tags |
| ---------- | ----------- | ----------- |
| kube_componentstatus_status_healthy | Gauge | `name`=&lt;component-name&gt; <br> `status`=&lt;True\|False\|Unknow&gt; |

106
collectors/componentstatus.go
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@ -1,106 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package collectors
import (
"github.com/golang/glog"
"github.com/prometheus/client_golang/prometheus"
"golang.org/x/net/context"
"k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/cache"
)
var (
descComponentStatusStatusHealthy = prometheus.NewDesc(
"kube_componentstatus_status_healthy",
"kube component status healthy status.",
[]string{"name", "status"}, nil,
)
)
type ComponentStatusLister func() (v1.ComponentStatusList, error)
func (csl ComponentStatusLister) List() (v1.ComponentStatusList, error) {
return csl()
}
func RegisterComponentStatusCollector(registry prometheus.Registerer, kubeClient kubernetes.Interface, namespace string) {
client := kubeClient.CoreV1().RESTClient()
glog.Infof("collect componentstatuses with %s", client.APIVersion())
slw := cache.NewListWatchFromClient(client, "componentstatuses", v1.NamespaceAll, fields.Everything())
sinf := cache.NewSharedInformer(slw, &v1.ComponentStatus{}, resyncPeriod)
componentStatusLister := ComponentStatusLister(func() (componentStatuses v1.ComponentStatusList, err error) {
for _, m := range sinf.GetStore().List() {
componentStatuses.Items = append(componentStatuses.Items, *m.(*v1.ComponentStatus))
}
return componentStatuses, nil
})
registry.MustRegister(&componentStatusCollector{store: componentStatusLister})
go sinf.Run(context.Background().Done())
}
type componentStatusStore interface {
List() (componentStatuses v1.ComponentStatusList, err error)
}
// componentStatusCollector collects metrics about all components in the cluster.
type componentStatusCollector struct {
store componentStatusStore
}
// Describe implements the prometheus.Collector interface.
func (csc *componentStatusCollector) Describe(ch chan<- *prometheus.Desc) {
ch <- descComponentStatusStatusHealthy
}
// Collect implements the prometheus.Collector interface.
func (csc *componentStatusCollector) Collect(ch chan<- prometheus.Metric) {
csl, err := csc.store.List()
if err != nil {
ScrapeErrorTotalMetric.With(prometheus.Labels{"resource": "componentstatus"}).Inc()
glog.Errorf("listing component status failed: %s", err)
return
}
ResourcesPerScrapeMetric.With(prometheus.Labels{"resource": "componentstatus"}).Observe(float64(len(csl.Items)))
for _, s := range csl.Items {
csc.collectComponentStatus(ch, s)
}
glog.Infof("collected %d componentstatuses", len(csl.Items))
}
func (csc *componentStatusCollector) collectComponentStatus(ch chan<- prometheus.Metric, s v1.ComponentStatus) {
addConstMetric := func(desc *prometheus.Desc, t prometheus.ValueType, v float64, lv ...string) {
lv = append([]string{s.Name}, lv...)
ch <- prometheus.MustNewConstMetric(desc, t, v, lv...)
}
addGauge := func(desc *prometheus.Desc, v float64, lv ...string) {
addConstMetric(desc, prometheus.GaugeValue, v, lv...)
}
for _, p := range s.Conditions {
if p.Type == v1.ComponentHealthy {
addGauge(descComponentStatusStatusHealthy, boolFloat64(p.Status == v1.ConditionTrue), string(v1.ConditionTrue))
addGauge(descComponentStatusStatusHealthy, boolFloat64(p.Status == v1.ConditionFalse), string(v1.ConditionFalse))
addGauge(descComponentStatusStatusHealthy, boolFloat64(p.Status == v1.ConditionUnknown), string(v1.ConditionUnknown))
break
}
}
}

83
collectors/componentstatus_test.go
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@ -1,83 +0,0 @@
/*
Copyright 2017 The Kubernetes Authors All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package collectors
import (
"testing"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
type mockcomponentStatusStore struct {
list func() (v1.ComponentStatusList, error)
}
func (mcs mockcomponentStatusStore) List() (v1.ComponentStatusList, error) {
return mcs.list()
}
func TestComponentStatusCollector(t *testing.T) {
// Fixed metadata on type and help text. We prepend this to every expected
// output so we only have to modify a single place when doing adjustments.
const metadata = `
# HELP kube_componentstatus_status_healthy kube component status healthy status.
# TYPE kube_componentstatus_status_healthy gauge
`
cases := []struct {
cms v1.ComponentStatusList
metrics []string // which metrics should be checked
want string
}{
// Verify phase enumerations.
{
cms: v1.ComponentStatusList{
Items: []v1.ComponentStatus{
{
ObjectMeta: metav1.ObjectMeta{
Name: "etcd1",
},
Conditions: []v1.ComponentCondition{
{
Type: v1.ComponentHealthy,
Status: v1.ConditionTrue,
},
},
},
},
},
want: metadata + `
kube_componentstatus_status_healthy{name="etcd1",status="False"} 0
kube_componentstatus_status_healthy{name="etcd1",status="True"} 1
kube_componentstatus_status_healthy{name="etcd1",status="Unknown"} 0
`,
metrics: []string{"kube_componentstatus_status_healthy"},
},
}
for _, c := range cases {
dc := &componentStatusCollector{
store: &mockcomponentStatusStore{
list: func() (v1.ComponentStatusList, error) {
return c.cms, nil
},
},
}
if err := gatherAndCompare(dc, c.want, c.metrics); err != nil {
t.Errorf("unexpected collecting result:\n%s", err)
}
}
}

2
main.go
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@ -49,7 +49,6 @@ const (
var (
defaultCollectors = collectorSet{
"componentstatuses": struct{}{},
"daemonsets": struct{}{},
"deployments": struct{}{},
"limitranges": struct{}{},
@ -69,7 +68,6 @@ var (
"endpoints": struct{}{},
}
availableCollectors = map[string]func(registry prometheus.Registerer, kubeClient clientset.Interface, namespace string){
"componentstatuses": kcollectors.RegisterComponentStatusCollector,
"cronjobs": kcollectors.RegisterCronJobCollector,
"daemonsets": kcollectors.RegisterDaemonSetCollector,
"deployments": kcollectors.RegisterDeploymentCollector,