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}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "td"
}, `name: hello-world`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("td", {
parentName: "tr",
"align": null
}, `表示 HPA 在为 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "td"
}, `hello-word`), ` deployment 执行自动扩缩。`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("tr", {
parentName: "tbody"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("td", {
parentName: "tr",
"align": null
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "td"
}, `minReplicas: 1`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("td", {
parentName: "tr",
"align": null
}, `表示运行的最小副本数不能低于 1。`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("tr", {
parentName: "tbody"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("td", {
parentName: "tr",
"align": null
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "td"
}, `maxReplicas: 10`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("td", {
parentName: "tr",
"align": null
}, `指示 deployment 中的最大副本数不能超过 10。`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("tr", {
parentName: "tbody"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("td", {
parentName: "tr",
"align": null
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "td"
}, `targetAverageUtilization: 50`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("td", {
parentName: "tr",
"align": null
}, `表示当平均运行的 pod 使用超过请求 CPU 的 50% 时，deployment 将扩展 pod。`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("tr", {
parentName: "tbody"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("td", {
parentName: "tr",
"align": null
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "td"
}, `targetAverageValue: 100Mi`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("td", {
parentName: "tr",
"align": null
}, `表示当平均运行的 pod 使用超过 100Mi 的内存时，deployment 将扩展 pod。`)))), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("br", null), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h2", {
"id": "使用资源指标cpu-和内存配置-hpa-以进行扩缩"
}, `使用资源指标（CPU 和内存）配置 HPA 以进行扩缩`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `在 Rancher 2.0.7 及更高版本中创建的集群满足使用 Horizontal Pod Autoscaler 的所有要求（metrics-server 和 Kubernetes 集群配置）。`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `运行以下命令以检查你的安装中是否有可用的指标：`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre"
}, `$ kubectl top nodes
NAME CPU(cores) CPU% MEMORY(bytes) MEMORY%
node-controlplane 196m 9% 1623Mi 42%
node-etcd 80m 4% 1090Mi 28%
node-worker 64m 3% 1146Mi 29%
$ kubectl -n kube-system top pods
NAME CPU(cores) MEMORY(bytes)
canal-pgldr 18m 46Mi
canal-vhkgr 20m 45Mi
canal-x5q5v 17m 37Mi
canal-xknnz 20m 37Mi
kube-dns-7588d5b5f5-298j2 0m 22Mi
kube-dns-autoscaler-5db9bbb766-t24hw 0m 5Mi
metrics-server-97bc649d5-jxrlt 0m 12Mi
$ kubectl -n kube-system logs -l k8s-app=metrics-server
I1002 12:55:32.172841 1 heapster.go:71] /metrics-server --source=kubernetes.summary_api:https://kubernetes.default.svc?kubeletHttps=true&kubeletPort=10250&useServiceAccount=true&insecure=true
I1002 12:55:32.172994 1 heapster.go:72] Metrics Server version v0.2.1
I1002 12:55:32.173378 1 configs.go:61] Using Kubernetes client with master "https://kubernetes.default.svc" and version
I1002 12:55:32.173401 1 configs.go:62] Using kubelet port 10250
I1002 12:55:32.173946 1 heapster.go:128] Starting with Metric Sink
I1002 12:55:32.592703 1 serving.go:308] Generated self-signed cert (apiserver.local.config/certificates/apiserver.crt, apiserver.local.config/certificates/apiserver.key)
I1002 12:55:32.925630 1 heapster.go:101] Starting Heapster API server...
[restful] 2018/10/02 12:55:32 log.go:33: [restful/swagger] listing is available at https:///swaggerapi
[restful] 2018/10/02 12:55:32 log.go:33: [restful/swagger] https:///swaggerui/ is mapped to folder /swagger-ui/
I1002 12:55:32.928597 1 serve.go:85] Serving securely on 0.0.0.0:443
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h2", {
"id": "配置-hpa-以使用-prometheus-自定义指标进行扩缩"
}, `配置 HPA 以使用 Prometheus 自定义指标进行扩缩`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `你可以将 HPA 配置为根据第三方软件提供的自定义指标进行自动扩缩。使用第三方软件进行自动扩缩的最常见用例是使用应用程序级别的指标（即每秒 HTTP 请求数）。HPA 使用 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `custom.metrics.k8s.io`), ` API 来使用这些指标。通过为指标收集解决方案部署自定义指标适配器，你可以启用此 API。`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `对于这个例子，我们将使用 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("a", {
parentName: "p",
"href": "https://prometheus.io/"
}, `Prometheus`), `。我们假设：`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("ul", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ul"
}, `Prometheus 部署在集群中。`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ul"
}, `Prometheus 配置正确，并从 pod、节点、命名空间等收集合适的指标。`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ul"
}, `Prometheus 暴露在以下 URL 和端口：`, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "li"
}, `http://prometheus.mycompany.io:80`))), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `Prometheus 可用于 Rancher 2.0 应用商店中的 Deployment。如果它还没有运行在你的集群中，请在 Rancher 应用商店中部署它。`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `为了让 HPA 使用来自 Prometheus 的自定义指标，`, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("a", {
parentName: "p",
"href": "https://github.com/DirectXMan12/k8s-prometheus-adapter"
}, `k8s-prometheus-adapter`), ` 包需要在你集群的 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `kube-system`), ` 命名空间中。要安装 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `k8s-prometheus-adapter`), `，使用 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("a", {
parentName: "p",
"href": "https://github.com/banzaicloud/banzai-charts"
}, `banzai-charts`), ` 提供的 Helm Chart。`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("ol", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ol"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `在集群中初始化 Helm。`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", {
parentName: "li"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre"
}, `# kubectl -n kube-system create serviceaccount tiller
kubectl create clusterrolebinding tiller --clusterrole cluster-admin --serviceaccount=kube-system:tiller
helm init --service-account tiller
`))), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ol"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `从 GitHub 克隆 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `banzai-charts`), ` 仓库：`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", {
parentName: "li"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre"
}, `# git clone https://github.com/banzaicloud/banzai-charts
`))), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ol"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `安装 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `prometheus-adapter`), ` Chart，指定 Prometheus URL 和端口号：`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", {
parentName: "li"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre"
}, `# helm install --name prometheus-adapter banzai-charts/prometheus-adapter --set prometheus.url="http://prometheus.mycompany.io",prometheus.port="80" --namespace kube-system
`))), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ol"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `检查 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `prometheus-adapter`), ` 是否正常运行。检查服务 pod 并在 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `kube-system`), ` 命名空间中登录。`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ol"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `检查服务 pod 是否处于 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `Running`), ` 状态。输入以下命令：`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", {
parentName: "li"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre"
}, `# kubectl get pods -n kube-system
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `在输出结果中查找 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `Running`), ` 状态。`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", {
parentName: "li"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre"
}, `NAME READY STATUS RESTARTS AGE
...
prometheus-adapter-prometheus-adapter-568674d97f-hbzfx 1/1 Running 0 7h
...
`))), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ol"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `通过输入以下命令检查服务日志，确保服务正常运行：`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", {
parentName: "li"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre"
}, `# kubectl logs prometheus-adapter-prometheus-adapter-568674d97f-hbzfx -n kube-system
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `然后查看日志输出以确认服务正在运行。`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("details", {
id: "prometheus-logs"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("summary", null, "Prometheus Adaptor 日志"), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `...
I0724 10:18:45.696679 1 round_trippers.go:436] GET `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("a", {
parentName: "p",
"href": "https://10.43.0.1:443/api/v1/namespaces/default/pods?labelSelector=app%3Dhello-world"
}, `https://10.43.0.1:443/api/v1/namespaces/default/pods?labelSelector=app%3Dhello-world`), ` 200 OK in 2 milliseconds
I0724 10:18:45.696695 1 round_trippers.go:442] Response Headers:
I0724 10:18:45.696699 1 round_trippers.go:445] Date: Tue, 24 Jul 2018 10:18:45 GMT
I0724 10:18:45.696703 1 round_trippers.go:445] Content-Type: application/json
I0724 10:18:45.696706 1 round_trippers.go:445] Content-Length: 2581
I0724 10:18:45.696766 1 request.go:836] Response Body: {"kind":"PodList","apiVersion":"v1","metadata":{"selfLink":"/api/v1/namespaces/default/pods","resourceVersion":"6237"},"items":[{"metadata":{"name":"hello-world-54764dfbf8-q6l82","generateName":"hello-world-54764dfbf8-","namespace":"default","selfLink":"/api/v1/namespaces/default/pods/hello-world-54764dfbf8-q6l82","uid":"484cb929-8f29-11e8-99d2-067cac34e79c","resourceVersion":"4066","creationTimestamp":"2018-07-24T10:06:50Z","labels":{"app":"hello-world","pod-template-hash":"1032089694"},"annotations":{"cni.projectcalico.org/podIP":"10.42.0.7/32"},"ownerReferences":`, `[{"apiVersion":"extensions/v1beta1","kind":"ReplicaSet","name":"hello-world-54764dfbf8","uid":"4849b9b1-8f29-11e8-99d2-067cac34e79c","controller":true,"blockOwnerDeletion":true}]`, `},"spec":{"volumes":`, `[{"name":"default-token-ncvts","secret":{"secretName":"default-token-ncvts","defaultMode":420}}]`, `,"containers":[{"name":"hello-world","image":"rancher/hello-world","ports":`, `[{"containerPort":80,"protocol":"TCP"}]`, `,"resources":{"requests":{"cpu":"500m","memory":"64Mi"}},"volumeMounts":`, `[{"name":"default-token-ncvts","readOnly":true,"mountPath":"/var/run/secrets/kubernetes.io/serviceaccount"}]`, `,"terminationMessagePath":"/dev/termination-log","terminationMessagePolicy":"File","imagePullPolicy":"Always"}],"restartPolicy":"Always","terminationGracePeriodSeconds":30,"dnsPolicy":"ClusterFirst","serviceAccountName":"default","serviceAccount":"default","nodeName":"34.220.18.140","securityContext":{},"schedulerName":"default-scheduler","tolerations":`, `[{"key":"node.kubernetes.io/not-ready","operator":"Exists","effect":"NoExecute","tolerationSeconds":300},{"key":"node.kubernetes.io/unreachable","operator":"Exists","effect":"NoExecute","tolerationSeconds":300}]`, `},"status":{"phase":"Running","conditions":`, `[{"type":"Initialized","status":"True","lastProbeTime":null,"lastTransitionTime":"2018-07-24T10:06:50Z"},{"type":"Ready","status":"True","lastProbeTime":null,"lastTransitionTime":"2018-07-24T10:06:54Z"},{"type":"PodScheduled","status":"True","lastProbeTime":null,"lastTransitionTime":"2018-07-24T10:06:50Z"}]`, `,"hostIP":"34.220.18.140","podIP":"10.42.0.7","startTime":"2018-07-24T10:06:50Z","containerStatuses":`, `[{"name":"hello-world","state":{"running":{"startedAt":"2018-07-24T10:06:54Z"}},"lastState":{},"ready":true,"restartCount":0,"image":"rancher/hello-world:latest","imageID":"docker-pullable://rancher/hello-world@sha256:4b1559cb4b57ca36fa2b313a3c7dde774801aa3a2047930d94e11a45168bc053","containerID":"docker://cce4df5fc0408f03d4adf82c90de222f64c302bf7a04be1c82d584ec31530773"}]`, `,"qosClass":"Burstable"}}]}
I0724 10:18:45.699525 1 api.go:74] GET `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("a", {
parentName: "p",
"href": "http://prometheus-server.prometheus.34.220.18.140.xip.io/api/v1/query?query=sum%28rate%28container_fs_read_seconds_total%7Bpod_name%3D%22hello-world-54764dfbf8-q6l82%22%2Ccontainer_name%21%3D%22POD%22%2Cnamespace%3D%22default%22%7D%5B5m%5D%29%29+by+%28pod_name%29&time=1532427525.697"
}, `http://prometheus-server.prometheus.34.220.18.140.xip.io/api/v1/query?query=sum%28rate%28container_fs_read_seconds_total%7Bpod_name%3D%22hello-world-54764dfbf8-q6l82%22%2Ccontainer_name%21%3D%22POD%22%2Cnamespace%3D%22default%22%7D%5B5m%5D%29%29+by+%28pod_name%29&time=1532427525.697`), ` 200 OK
I0724 10:18:45.699620 1 api.go:93] Response Body: {"status":"success","data":{"resultType":"vector","result":[{"metric":{"pod_name":"hello-world-54764dfbf8-q6l82"},"value":`, `[1532427525.697,"0"]`, `}]}}
I0724 10:18:45.699939 1 wrap.go:42] GET /apis/custom.metrics.k8s.io/v1beta1/namespaces/default/pods/%2A/fs_read?labelSelector=app%3Dhello-world: (12.431262ms) 200 [`, `[kube-controller-manager/v1.10.1 (linux/amd64) kubernetes/d4ab475/system:serviceaccount:kube-system:horizontal-pod-autoscaler]`, ` 10.42.0.0:24268]
I0724 10:18:51.727845 1 request.go:836] Request Body: {"kind":"SubjectAccessReview","apiVersion":"authorization.k8s.io/v1beta1","metadata":{"creationTimestamp":null},"spec":{"nonResourceAttributes":{"path":"/","verb":"get"},"user":"system:anonymous","group":`, `["system:unauthenticated"]`, `},"status":{"allowed":false}}
...`)))), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("ol", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ol"
}, `检查是否可以从 kubectl 访问 metrics API。`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("ul", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ul"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `如果你直接访问集群，请在 kubectl 配置中输入你的服务器 URL，格式是 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `https://<Kubernetes_URL>:6443`), `：`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", {
parentName: "li"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre"
}, `# kubectl get --raw /apis/custom.metrics.k8s.io/v1beta1
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `如果 API 可访问，你应该会看到类似以下内容的输出：`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("details", {
id: "custom-metrics-api-response"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("summary", null, "API 响应"), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `{"kind":"APIResourceList","apiVersion":"v1","groupVersion":"custom.metrics.k8s.io/v1beta1","resources":[{"name":"pods/fs_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_rss","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_cpu_period","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_cfs_throttled","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_io_time","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_read","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_sector_writes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_user","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/last_seen","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/tasks_state","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_cpu_quota","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/start_time_seconds","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_write","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_cache","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_cfs_periods","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_cfs_throttled_periods","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_reads_merged","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_working_set_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/network_udp_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_inodes_free","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_inodes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_io_time_weighted","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_failures","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_swap","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_cpu_shares","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_memory_swap_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_io_current","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_writes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_failcnt","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_reads","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_writes_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_writes_merged","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/network_tcp_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_max_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_memory_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_memory_reservation_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_load_average_10s","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_system","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_reads_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_sector_reads","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `}]}`))), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("li", {
parentName: "ul"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `如果你通过 Rancher 访问集群，请在 kubectl 配置中输入你的服务器 URL，格式是 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `https://<RANCHER_URL>/k8s/clusters/<CLUSTER_ID>`), `。将 `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `/k8s/clusters/<CLUSTER_ID>`), ` 后缀添加到 API 路径：`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", {
parentName: "li"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre"
}, `# kubectl get --raw /k8s/clusters/<CLUSTER_ID>/apis/custom.metrics.k8s.io/v1beta1
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `如果 API 可访问，你应该会看到类似以下内容的输出：`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("details", {
id: "custom-metrics-api-response-rancher"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("summary", null, "API 响应"), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "li"
}, `{"kind":"APIResourceList","apiVersion":"v1","groupVersion":"custom.metrics.k8s.io/v1beta1","resources":[{"name":"pods/fs_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_rss","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_cpu_period","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_cfs_throttled","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_io_time","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_read","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_sector_writes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_user","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/last_seen","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/tasks_state","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_cpu_quota","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/start_time_seconds","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_write","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_cache","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_cfs_periods","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_cfs_throttled_periods","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_reads_merged","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_working_set_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/network_udp_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_inodes_free","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_inodes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_io_time_weighted","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_failures","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_swap","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_cpu_shares","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_memory_swap_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_io_current","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_writes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_failcnt","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_reads","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_writes_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_writes_merged","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/network_tcp_usage","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/memory_max_usage_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_memory_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/spec_memory_reservation_limit_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_load_average_10s","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/cpu_system","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_reads_bytes","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `},{"name":"pods/fs_sector_reads","singularName":"","namespaced":true,"kind":"MetricValueList","verbs":`, `["get"]`, `}]}`)))));
}
MDXContent.isMDXComponent = true;
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