kube-state-metrics

kube-state-metrics 的作用？

一句话概括，Add-on agent to generate and expose cluster-level metrics.

kube-state-metrics 暴露那些对象的指标？

• CronJob Metrics
• DaemonSet Metrics
• Deployment Metrics
• Job Metrics
• LimitRange Metrics
• ode Metrics
• PersistentVolume Metrics
• PersistentVolumeClaim Metrics
• Pod Metrics
• ReplicaSet Metrics
• ReplicationController Metrics
• ResourceQuota Metrics
• Service Metrics
• StatefulSet Metrics
• Namespace Metrics
• Horizontal Pod Autoscaler Metrics
• Endpoint Metrics

如何CURL手动获取metrics暴露的指标数据？

# APISERVER=$(kubectl config view --minify | grep server | cut -f 2- -d ":" | tr -d " ")
# TOKEN=$(kubectl describe secret -n kube-system $(kubectl get secrets -n kube-system | grep ^dashboard | cut -f1 -d ' ') | grep -E '^token' | cut -f2 -d':' | tr -d " ")
# curl --header "Authorization: Bearer $TOKEN" --insecure  "http://10.111.162.5:8080/metrics"