kubernetes之metrics |
您所在的位置：网站首页 › linux只之metric › kubernetes之metrics |
|
版权声明：欢迎交流，菲宇运维！ https://cloud.tencent.com/developer/article/1444859 一、metrics-server简介从 Kubernetes 1.8 开始，资源使用指标（如容器 CPU 和内存使用率）通过 Metrics API 在 Kubernetes 中获取, metrics-server 替代了heapster。Metrics Server 实现了Resource Metrics API，Metrics Server 是集群范围资源使用数据的聚合器。 Metrics Server 从每个节点上的 Kubelet 公开的 Summary API 中采集指标信息。 kubernetes metrics server 参考文档 https://github.com/kubernetes-incubator/metrics-server 二、安装metrics-server会用到的yaml文件： https://github.com/kubernetes-incubator/metrics-server/tree/master/deploy/1.8%2B 或者 https://github.com/kubernetes/kubernetes/tree/release-1.11/cluster/addons/metrics-server（建议使用） 下载六个文件并创建 for file in auth-delegator.yaml auth-reader.yaml metrics-apiservice.yaml metrics-server-deployment.yaml metrics-server-service.yaml resource-reader.yaml;do wget https://raw.githubusercontent.com/kubernetes/kubernetes/release-1.11/cluster/addons/metrics-server/$file; done 需要修改的地方： metrics-server-deployment.yaml # --source=kubernetes.summary_api:''--source=kubernetes.summary_api:https://kubernetes.default?kubeletHttps=true&kubeletPort=10250&insecure=trueresource-reader.yaml# resources: podsnodesnamespacesnodes/stats #新加开始运行： kubectl apply -f . root@master metrics# kubectl api-versions admissionregistration.k8s.io/v1beta1 apiextensions.k8s.io/v1beta1 apiregistration.k8s.io/v1 apiregistration.k8s.io/v1beta1 apps/v1 apps/v1beta1 apps/v1beta2 authentication.k8s.io/v1 authentication.k8s.io/v1beta1 authorization.k8s.io/v1 authorization.k8s.io/v1beta1 autoscaling/v1 autoscaling/v2beta1 batch/v1 batch/v1beta1 certificates.k8s.io/v1beta1 crd.projectcalico.org/v1 events.k8s.io/v1beta1 extensions/v1beta1 metrics.k8s.io/v1beta1 #metrics控制器，有说明成功 networking.k8s.io/v1 policy/v1beta1 rbac.authorization.k8s.io/v1 rbac.authorization.k8s.io/v1beta1 scheduling.k8s.io/v1beta1 storage.k8s.io/v1 storage.k8s.io/v1beta1 v1查看pods [root@master metrics]# kubectl get pods -n kube-system NAME READY STATUS RESTARTS AGE coredns-78fcdf6894-cj6tn 1/1 Running 42 26d coredns-78fcdf6894-wfvk8 1/1 Running 42 26d elasticsearch-logging-0 1/1 Running 45 4d elasticsearch-logging-1 1/1 Running 47 4d etcd-master 1/1 Running 42 26d grafana-7f8bcdfbbf-qzln5 1/1 Running 4 13d kibana-logging-7444956bf8-x8qqd 1/1 Running 2 4d kube-apiserver-master 1/1 Running 47 26d kube-controller-manager-master 1/1 Running 43 26d kube-flannel-ds-m4f4j 1/1 Running 33 26d kube-flannel-ds-xvssj 1/1 Running 18 26d kube-proxy-5lw6z 1/1 Running 39 26d kube-proxy-qlhg7 1/1 Running 18 26d kube-scheduler-master 1/1 Running 39 26d kubernetes-dashboard-767dc7d4d-4bt48 1/1 Running 5 5d metrics-server-v0.2.1-84678c956-hbz2b 2/2 Running 0 2m#这个状态是正常的 master新开一个反向代理端口 root@master ~# kubectl proxy --port=8080 Starting to serve on 127.0.0.1:8080 master新开一个窗口查看 [root@master ~]# curl http://localhost:8080/apis/metrics.k8s.io/v1beta1/nodes { "kind": "NodeMetricsList", "apiVersion": "metrics.k8s.io/v1beta1", "metadata": { "selfLink": "/apis/metrics.k8s.io/v1beta1/nodes" }, "items": [ { "metadata": { "name": "master", "selfLink": "/apis/metrics.k8s.io/v1beta1/nodes/master", "creationTimestamp": "2018-09-25T09:48:21Z" }, "timestamp": "2018-09-25T09:48:00Z", "window": "1m0s", "usage": { "cpu": "211m", "memory": "2905388Ki" } }, { "metadata": { "name": "node01", "selfLink": "/apis/metrics.k8s.io/v1beta1/nodes/node01", "creationTimestamp": "2018-09-25T09:48:21Z" }, "timestamp": "2018-09-25T09:48:00Z", "window": "1m0s", "usage": { "cpu": "150m", "memory": "3670276Ki" } } ] }三、测试是否安装成功root@master metrics# kubectl top nodes error: metrics not available yet 说明还未成功，需要等待一会 查看node [root@master metrics]# kubectl top node NAME CPU(cores) CPU% MEMORY(bytes) MEMORY% master 207m 10% 2832Mi 76% node01 144m 4% 3619Mi 37%查看pods [root@master metrics]# kubectl top pods -n kube-system NAME CPU(cores) MEMORY(bytes) coredns-78fcdf6894-cj6tn 2m 11Mi coredns-78fcdf6894-wfvk8 1m 11Mi elasticsearch-logging-0 6m 1347Mi elasticsearch-logging-1 6m 1326Mi etcd-master 17m 84Mi grafana-7f8bcdfbbf-qzln5 0m 21Mi kibana-logging-7444956bf8-x8qqd 4m 83Mi kube-apiserver-master 89m 486Mi kube-controller-manager-master 19m 59Mi kube-flannel-ds-m4f4j 5m 14Mi kube-flannel-ds-xvssj 5m 12Mi kube-proxy-5lw6z 3m 15Mi kube-proxy-qlhg7 3m 16Mi kube-scheduler-master 6m 13Mi kubernetes-dashboard-767dc7d4d-4bt48 0m 11Mi metrics-server-v0.2.1-84678c956-hbz2b 1m 24Mi |
今日新闻 |
推荐新闻 |
| CopyRight 2018-2019 办公设备维修网 版权所有 豫ICP备15022753号-3 |