k8s kubeedge安装metrics-server监控节点cpu内存使用情况

k8s kubeedge安装metrics-server监控节点cpu内存使用情况

k8s kubeedge安装metrics-server监控节点cpu内存使用情况

官方安装地址: https://kubeedge.io/en/docs/advanced/metrics/

k8s的master节点上安装metrics-server

#在k8s的master节点上执行 #创建目录 mkdir metrics-server #下载deploy文件 wget -O deploy.yaml #修改配置如下,可以参考官方的配置 vim deploy.yaml spec: affinity: nodeAffinity: requiredDuringSchedulingIgnoredDuringExecution: nodeSelectorTerms: - matchExpressions: - key: node-role.kubernetes.io/master operator: Exists tolerations: - key: node-role.kubernetes.io/master operator: Exists effect: NoSchedule hostNetwork: true containers: - args: - --kubelet-insecure-tls - --cert-dir=/tmp - --secure-port=4443 #deploy里的镜像需要翻墙下载 docker pull k8s.gcr.io/metrics-server/metrics-server:v0.4.0 #我先本地翻墙,把镜像下载下来然后导过去的 docker save -o metrics-server-image.tar k8s.gcr.io/metrics-server/metrics-server:v0.4.0 docker load -i metrics-server-image.tar #大家可以在docker hub下载我推上去的镜像 docker push beyondyinjl/metrics-server:v0.4.0 #然后修改镜像名 docker tag beyondyinjl/metrics-server:v0.4.0 k8s.gcr.io/metrics-server/metrics-server:v0.4.0 #应用 kubectl apply -f deploy.yaml #过一会,等启动成功后,使用命令查看内存CPU情况 kubectl top node #回显如下: NAME CPU(cores) CPU% MEMORY(bytes) MEMORY% edge-node-1 2100m 52% 1579Mi 42% k8s-master 1404m 35% 12325Mi 78%

kubeedge节点开启CPU内存的监控

官方文档地址: logs必须激活功能

#在云节点上操作: #用户更改为root sudo su #确保您可以找到kubernetes 的ca.crt和ca.key文件 ls /etc/kubernetes/pki/ #设置环境CLOUDCOREIPS。环境变量设置为指定cloudcore的IP地址 export CLOUDCOREIPS="192.168.3.100" echo $CLOUDCOREIPS cp $GOPATH/src/github.com/kubeedge/kubeedge/build/tools/certgen.sh /etc/kubeedge/ cd /etc/kubeedge/ #从certgen.sh生成证书 /etc/kubeedge/certgen.sh stream #需要在云主机上设置iptables。（此命令应该在每个apiserver部署的节点上执行。) iptables -F && iptables -t nat -F && iptables -t mangle -F && iptables -X iptables -t nat -A OUTPUT -p tcp --dport 10350 -j DNAT --to $CLOUDCOREIPS:10003 #修改云主机 enable: true vim /etc/kubeedge/config/cloudcore.yaml cloudStream: enable: true streamPort: 10003 tlsStreamCAFile: /etc/kubeedge/ca/streamCA.crt tlsStreamCertFile: /etc/kubeedge/certs/stream.crt tlsStreamPrivateKeyFile: /etc/kubeedge/certs/stream.key tlsTunnelCAFile: /etc/kubeedge/ca/rootCA.crt tlsTunnelCertFile: /etc/kubeedge/certs/server.crt tlsTunnelPrivateKeyFile: /etc/kubeedge/certs/server.key tunnelPort: 10004 #重启cloudcore systemctl status cloudcore.service systemctl restart cloudcore.service

#在边缘节点上操作 #修改 enable: true server: 192.168.x.x:10004 vim /etc/kubeedge/config/edgecore.yaml edgeStream: enable: true handshakeTimeout: 30 readDeadline: 15 server: 192.168.3.100:10004 tlsTunnelCAFile: /etc/kubeedge/ca/rootCA.crt tlsTunnelCertFile: /etc/kubeedge/certs/server.crt tlsTunnelPrivateKeyFile: /etc/kubeedge/certs/server.key writeDeadline: 15 #重启edge core systemctl status edgecore.service systemctl restart edgecore.service

shell脚本动态替换

#备份一下 cp /etc/kubeedge/config/edgecore.yaml /etc/kubeedge/config/edgecore.yaml.bak #删除edgeStream的下一行 sed -i '/edgeStream:/{n;d}' /etc/kubeedge/config/edgecore.yaml.bak #在edgeStream的下一行添加一行: enable: true sed -i -e '/edgeStream:/{s|$|\n enable: true|}' /etc/kubeedge/config/edgecore.yaml.bak #删除edgeStream的下第4行 sed -i '/edgeStream:/{n;n;n;n;d}' /etc/kubeedge/config/edgecore.yaml #在edgeStream的下第3行后添加一行,也就是第4行: server: 192.168.3.100:10004 sed -i -e '/edgeStream:/{n;n;n;s|$|\n server: 192.168.3.100:10004|}' /etc/kubeedge/config/edgecore.yaml #这里的 server: cloudIp:10004 会原样写入到文件 sed -i -e '/edgeStream:/{n;n;n;s|$|\n server: cloudIp:10004|}' /etc/kubeedge/config/edgecore.yaml #替换文件中cloudIp为变量$cloudIp的内容如:192.168.3.100 cloudIp=192.168.3.100 sed -i "s/cloudIp/$cloudIp/g" /etc/kubeedge/config/edgecore.yaml

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