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heapster安装

安装文件和镜像下载

安装文件下载:

[root@master ~]# git clone https://github.com/kubernetes-retired/heapster.git

或者

[root@master ~]# wget https://github.com/kubernetes-retired/heapster/archive/master.zip
[root@master ~]# unzip master.zip 

两种方式都可以下载安装文件,本文采取第二种方式

镜像下载及打标签

[root@node02 ~]# docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/heapster-grafana-amd64:v5.0.4
[root@node02 ~]# docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/heapster-influxdb-amd64:v1.5.2
[root@node02 ~]# docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/heapster-amd64:v1.5.4

[root@node02 ~]# docker image tag registry.cn-hangzhou.aliyuncs.com/google_containers/heapster-amd64:v1.5.4 k8s.gcr.io/heapster-amd64:v1.5.4 
[root@node02 ~]# docker image tag registry.cn-hangzhou.aliyuncs.com/google_containers/heapster-influxdb-amd64:v1.5.2 k8s.gcr.io/heapster-influxdb-amd64:v1.5.2
[root@node02 ~]# docker image tag registry.cn-hangzhou.aliyuncs.com/google_containers/heapster-grafana-amd64:v5.0.4 k8s.gcr.io/heapster-grafana-amd64:v5.0.4

[root@node02 ~]# docker rmi registry.cn-hangzhou.aliyuncs.com/google_containers/heapster-amd64:v1.5.4 registry.cn-hangzhou.aliyuncs.com/google_containers/heapster-influxdb-amd64:v1.5.2 registry.cn-hangzhou.aliyuncs.com/google_containers/heapster-grafana-amd64:v5.0.4

注意每个节点都需执行以上命令

安装文件修改

[root@master ~]# cd heapster-master/deploy/kube-config/
[root@master kube-config]# pwd
/root/heapster-master/deploy/kube-config
[root@master kube-config]# ll
总用量 0
drwxr-xr-x 2 root root  27 11月 30 2018 google
drwxr-xr-x 2 root root  68 10月 22 15:00 influxdb
drwxr-xr-x 2 root root  32 10月 22 15:02 rbac
drwxr-xr-x 2 root root  38 11月 30 2018 standalone
drwxr-xr-x 2 root root 170 11月 30 2018 standalone-test
drwxr-xr-x 2 root root 145 11月 30 2018 standalone-with-apiserver
[root@master kube-config]# cd influxdb/
[root@master influxdb]# ll
总用量 12
-rw-r--r-- 1 root root 2294 10月 22 14:51 grafana.yaml
-rw-r--r-- 1 root root 1162 10月 22 15:00 heapster.yaml
-rw-r--r-- 1 root root  997 10月 22 14:51 influxdb.yaml
[root@master influxdb]# cd ../rbac/
[root@master rbac]# ll
总用量 4
-rw-r--r-- 1 root root 263 10月 22 15:02 heapster-rbac.yaml

分别修改文件grafana.yamlinfluxdb.yamlheapster.yamlheapster-rbac.yaml

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修改grafana.yaml,port类型为NodePort,nodePort为30011,可通过http://NodeIp:30011方式访问

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修改influxdb.yaml,port类型为NodePort,nodePort为30012,grafana配置数据源会用到

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修改heapster.yaml中的source和sink参数

source: 指定数据获取源

source参数 说明
inClusterConfig 在与heapster的命名空间关联的服务帐户中使用kube config(默认值:true)
kubeletPort 指定kubelet的使用端口,默认10255
kubeletHttps 是否使用https去连接kubelets(默认:false)
insecure 是否使用安全证书(默认:false)
auth 安全认证
useServiceAccount 是否使用K8S的安全令牌(默认:false)

sink: 指定后端数据存储

sink参数 说明
user InfluxDB用户,默认root
pw InfluxDB密码,默认root
db 数据库名,默认k8s
retention 默认infloxDB保留策略的持续时间,默认值0,表示无限
secure 安全连接到InfluxDB(默认:false)
insecuressl 忽略SSL证书有效性(默认值:false)
withfields 使用InfluxDB fields(默认:false)
cluster_name 不同cubernete集群的集群名称(默认:default)
disable_counter_metrics 禁用接收计数器度量以流入数据库(默认:false)
concurrency 并发数(默认:1)

图片.png

修改heapster-rbac.yaml,将权限修改为cluster-admi

执行安装

[root@master kube-config]# pwd
/root/heapster-master/deploy/kube-config
[root@master kube-config]# kubectl apply -f influxdb/
deployment.extensions/monitoring-grafana created
service/monitoring-grafana created
serviceaccount/heapster created
deployment.extensions/heapster created
service/heapster created
deployment.extensions/monitoring-influxdb created
service/monitoring-influxdb created
[root@master kube-config]# kubectl apply -f rbac/heapster-rbac.yaml 
clusterrolebinding.rbac.authorization.k8s.io/heapster created

资源查看

[root@master kube-config]# kubectl get all -n kube-system -o wide |grep -e monitor -e heapster    

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Grafana配置

登录grafana

登陆地址: http://172.27.9.131:30011

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配置DataSource

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url为http://172.27.9.131:30012

导入模板

模板下载

下载地址:https://grafana.com/api/dashboards/3649/revisions/1/download

https://grafana.com/api/dashboards/3646/revisions/1/download

导入

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同理导入kubernetes-node-statistics

查看Grafana

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资源删除

[root@master ~]# kubectl delete -n kube-system  ClusterRoleBinding heapster               
[root@master ~]# kubectl get all -n kube-system -o wide |grep -e monitor -e heapster |awk '{print $1}'|xargs kubectl delete  -n kube-system
[root@master ~]# rm -rf heapster-master master.zip 

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heapster+influxdb+grafana实现kubernetes集群监控

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