kube-state-metrics

-
#clone kube-state-metrics



[root@k8s-master ~]# git clone https://github.com/kubernetes/kube-state-metrics.git
Cloning into 'kube-state-metrics'...
remote: Enumerating objects: 1, done.
remote: Counting objects: 100% (1/1), done.
remote: Total 18700 (delta 0), reused 0 (delta 0), pack-reused 18699
Receiving objects: 100% (18700/18700), 15.96 MiB | 3.60 MiB/s, done.
Resolving deltas: 100% (11775/11775), done.

#apply config

[root@k8s-master kube-state-metrics]# kubectl apply -f examples/standard
clusterrolebinding.rbac.authorization.k8s.io/kube-state-metrics created
clusterrole.rbac.authorization.k8s.io/kube-state-metrics created
deployment.apps/kube-state-metrics created
serviceaccount/kube-state-metrics created
service/kube-state-metrics created
[root@k8s-master kube-state-metrics]#

#create user

[root@k8s-master kube-state-metrics]# kubectl create clusterrolebinding cluster-admin-binding --clusterrole=cluster-admin --user=root
clusterrolebinding.rbac.authorization.k8s.io/cluster-admin-binding created

#check resources

[root@k8s-master kube-state-metrics]# kubectl get pods -o wide -A
NAMESPACE     NAME                                  READY   STATUS    RESTARTS   AGE     IP              NODE         NOMINATED NODE   READINESS GATES
default       gnotiboot-6b856c4f44-4dt9x            1/1     Running   0          26d     10.244.1.41     k8s-node1    <none>           <none>
default       gnotiboot-6b856c4f44-6drf2            1/1     Running   0          26d     10.244.1.45     k8s-node1    <none>           <none>
default       gnotiboot-6b856c4f44-hlbt8            1/1     Running   0          26d     10.244.1.42     k8s-node1    <none>           <none>
default       gnotiboot-6b856c4f44-nh4l7            1/1     Running   0          26d     10.244.1.44     k8s-node1    <none>           <none>
default       gnotiboot-6b856c4f44-z76xd            1/1     Running   0          26d     10.244.1.43     k8s-node1    <none>           <none>
default       gtomcat                               1/1     Running   0          42d     10.244.1.13     k8s-node1    <none>           <none>
default       nginx-f89759699-5vtq5                 1/1     Running   0          44d     10.244.1.4      k8s-node1    <none>           <none>
default       php-apache-5c4f475bf5-6ch8v           1/1     Running   0          28d     10.244.1.26     k8s-node1    <none>           <none>
kube-system   coredns-66bff467f8-glbj5              1/1     Running   0          44d     10.244.0.3      k8s-master   <none>           <none>
kube-system   coredns-66bff467f8-s9zp2              1/1     Running   0          44d     10.244.0.2      k8s-master   <none>           <none>
kube-system   etcd-k8s-master                       1/1     Running   4          44d     192.168.0.162   k8s-master   <none>           <none>
kube-system   kube-apiserver-k8s-master             1/1     Running   0          44d     192.168.0.162   k8s-master   <none>           <none>
kube-system   kube-controller-manager-k8s-master    1/1     Running   4          44d     192.168.0.162   k8s-master   <none>           <none>
kube-system   kube-proxy-s7kws                      1/1     Running   0          44d     192.168.0.139   k8s-node1    <none>           <none>
kube-system   kube-proxy-wd7dj                      1/1     Running   0          44d     192.168.0.162   k8s-master   <none>           <none>
kube-system   kube-scheduler-k8s-master             1/1     Running   4          44d     192.168.0.162   k8s-master   <none>           <none>
kube-system   kube-state-metrics-6dc5b5b496-4znd5   0/1     Pending   0          4m18s   <none>          <none>       <none>           <none>
kube-system   metricbeat-759cc94485-4p2zs           0/1     Evicted   0          28d     <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-dn4fc           1/1     Running   1          6d23h   192.168.0.139   k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-fbzzl           0/1     Evicted   0          6d23h   <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-g6665           0/1     Evicted   0          6d23h   <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-h56hk           0/1     Evicted   0          6d23h   <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-n9cvz           0/1     Evicted   0          6d23h   <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-twg57           0/1     Evicted   0          6d23h   <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-8wdvl                      1/1     Running   2          28d     192.168.0.139   k8s-node1    <none>           <none>
kube-system   metrics-server-67c75d59f8-7dsrv       1/1     Running   1          28d     192.168.0.139   k8s-node1    <none>           <none>
kube-system   tiller-deploy-66fccb9847-zrcd9        0/1     Pending   0          4h3m    <none>          <none>       <none>           <none>
[root@k8s-master kube-state-metrics]#

#check resources

[root@k8s-master kube-state-metrics]# kubectl get svc -A
NAMESPACE     NAME                          TYPE           CLUSTER-IP       EXTERNAL-IP     PORT(S)                  AGE
default       gnoti-service                 LoadBalancer   10.98.79.19      192.168.0.162   8088:31555/TCP           26d
default       gnotiboot-docker-deployment   ClusterIP      10.98.217.154    <none>          8088/TCP                 27d
default       kubernetes                    ClusterIP      10.96.0.1        <none>          443/TCP                  44d
default       nginx                         NodePort       10.103.162.78    <none>          80:32412/TCP             44d
default       php-apache                    ClusterIP      10.96.104.103    <none>          80/TCP                   28d
kube-system   kube-dns                      ClusterIP      10.96.0.10       <none>          53/UDP,53/TCP,9153/TCP   44d
kube-system   kube-state-metrics            ClusterIP      None             <none>          8080/TCP,8081/TCP        5m58s
kube-system   metrics-server                ClusterIP      10.106.5.120     <none>          443/TCP                  28d
kube-system   tiller-deploy                 ClusterIP      10.110.198.187   <none>          44134/TCP                4h5m
[root@k8s-master kube-state-metrics]#

#patch external ip

[root@k8s-master kube-state-metrics]# kubectl get pods -o wide -A
NAMESPACE     NAME                                  READY   STATUS    RESTARTS   AGE     IP              NODE         NOMINATED NODE   READINESS GATES
default       gnotiboot-6b856c4f44-4dt9x            1/1     Running   0          26d     10.244.1.41     k8s-node1    <none>           <none>
default       gnotiboot-6b856c4f44-6drf2            1/1     Running   0          26d     10.244.1.45     k8s-node1    <none>           <none>
default       gnotiboot-6b856c4f44-hlbt8            1/1     Running   0          26d     10.244.1.42     k8s-node1    <none>           <none>
default       gnotiboot-6b856c4f44-nh4l7            1/1     Running   0          26d     10.244.1.44     k8s-node1    <none>           <none>
default       gnotiboot-6b856c4f44-z76xd            1/1     Running   0          26d     10.244.1.43     k8s-node1    <none>           <none>
default       gtomcat                               1/1     Running   0          42d     10.244.1.13     k8s-node1    <none>           <none>
default       nginx-f89759699-5vtq5                 1/1     Running   0          44d     10.244.1.4      k8s-node1    <none>           <none>
default       php-apache-5c4f475bf5-6ch8v           1/1     Running   0          28d     10.244.1.26     k8s-node1    <none>           <none>
kube-system   coredns-66bff467f8-glbj5              1/1     Running   0          44d     10.244.0.3      k8s-master   <none>           <none>
kube-system   coredns-66bff467f8-s9zp2              1/1     Running   0          44d     10.244.0.2      k8s-master   <none>           <none>
kube-system   etcd-k8s-master                       1/1     Running   4          44d     192.168.0.162   k8s-master   <none>           <none>
kube-system   kube-apiserver-k8s-master             1/1     Running   0          44d     192.168.0.162   k8s-master   <none>           <none>
kube-system   kube-controller-manager-k8s-master    1/1     Running   4          44d     192.168.0.162   k8s-master   <none>           <none>
kube-system   kube-proxy-s7kws                      1/1     Running   0          44d     192.168.0.139   k8s-node1    <none>           <none>
kube-system   kube-proxy-wd7dj                      1/1     Running   0          44d     192.168.0.162   k8s-master   <none>           <none>
kube-system   kube-scheduler-k8s-master             1/1     Running   4          44d     192.168.0.162   k8s-master   <none>           <none>
kube-system   kube-state-metrics-6dc5b5b496-4znd5   0/1     Pending   0          10m     <none>          <none>       <none>           <none>
kube-system   metricbeat-759cc94485-4p2zs           0/1     Evicted   0          28d     <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-dn4fc           1/1     Running   1          6d23h   192.168.0.139   k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-fbzzl           0/1     Evicted   0          6d23h   <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-g6665           0/1     Evicted   0          6d23h   <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-h56hk           0/1     Evicted   0          6d23h   <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-n9cvz           0/1     Evicted   0          6d23h   <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-759cc94485-twg57           0/1     Evicted   0          6d23h   <none>          k8s-node1    <none>           <none>
kube-system   metricbeat-8wdvl                      1/1     Running   2          28d     192.168.0.139   k8s-node1    <none>           <none>
kube-system   metrics-server-67c75d59f8-7dsrv       1/1     Running   1          28d     192.168.0.139   k8s-node1    <none>           <none>
kube-system   tiller-deploy-66fccb9847-zrcd9        0/1     Pending   0          4h9m    <none>          <none>       <none>           <none>


[root@k8s-master kube-state-metrics]# kubectl patch svc kube-state-metrics --namespace=kube-system -p '{"spec": {"type": "ClusterIP", "externalIPs":["192.168.0.162"]}}'
service/kube-state-metrics patched




[root@k8s-master kube-state-metrics]# kubectl get svc -A
NAMESPACE     NAME                          TYPE           CLUSTER-IP       EXTERNAL-IP     PORT(S)                  AGE
default       gnoti-service                 LoadBalancer   10.98.79.19      192.168.0.162   8088:31555/TCP           26d
default       gnotiboot-docker-deployment   ClusterIP      10.98.217.154    <none>          8088/TCP                 27d
default       kubernetes                    ClusterIP      10.96.0.1        <none>          443/TCP                  44d
default       nginx                         NodePort       10.103.162.78    <none>          80:32412/TCP             44d
default       php-apache                    ClusterIP      10.96.104.103    <none>          80/TCP                   28d
kube-system   kube-dns                      ClusterIP      10.96.0.10       <none>          53/UDP,53/TCP,9153/TCP   44d
kube-system   kube-state-metrics            ClusterIP      None             192.168.0.162   8080/TCP,8081/TCP        12m
kube-system   metrics-server                ClusterIP      10.106.5.120     <none>          443/TCP                  28d
kube-system   tiller-deploy                 ClusterIP      10.110.198.187   <none>          44134/TCP                4h11m
#set metricbeat.yml

root@nks-pool-159-w-3x0:~# cat /etc/metricbeat/modules.d/kubernetes.yml 
# Module: kubernetes
# Docs: https://www.elastic.co/guide/en/beats/metricbeat/7.7/metricbeat-module-kubernetes.html

# Node metrics, from kubelet:
#- module: kubernetes
#  metricsets:
#    - node
#    - system
#    - pod
#    - container
#    - volume
#  period: 10s
#  hosts: ["localhost:10250"]
#  ssl.verification_mode: "none"
  #bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
  #ssl.verification_mode: "none"
  #ssl.certificate_authorities:
  #  - /var/run/secrets/kubernetes.io/serviceaccount/service-ca.crt
  #username: "user"
  #password: "secret"

  # Enriching parameters:
 # add_metadata: true
  #labels.dedot: true
  #annotations.dedot: true
  # When used outside the cluster:
  #host: node_name
  # If kube_config is not set, KUBECONFIG environment variable will be checked
  # and if not present it will fall back to InCluster
  #kube_config: ~/.kube/config

# State metrics from kube-state-metrics service:
- module: kubernetes
  metricsets:
    - state_node
    - state_deployment
    - state_replicaset
    - state_statefulset
    - state_pod
    - state_container
    - state_cronjob
    - state_resourcequota
    - state_service
    - state_persistentvolume
    - state_persistentvolumeclaim
    - state_storageclass

  period: 5s
  hosts: ["198.18.0.26:8080/metrics"]
  add_metadata: true

# Kubernetes events
#- module: kubernetes
#  metricsets:
#    - event



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