kubernetes - 指标尚不可用指标-AWS 上的 kubernetes
问题描述
我正在尝试在 AWS 上启用 Metrics Server,并按照以下步骤操作
克隆或下载 Metrics Server 项目。
在编辑器中打开 deploy/1.8+/metrics-server-deployment.yaml 文件。
将以下命令值添加到容器属性中(它应该与图像属性处于同一级别)。
command:
- /metrics-server
- --kubelet-insecure-tls
- 运行 kubectl create -f deploy/1.8+,如 Metrics Server 存储库中所示,以创建部署、服务等。
到目前为止一切正常,我的 metrics-server-pod 运行良好,但是当我这样做时,kubectl top nodes
我收到以下错误
error: metrics not available yet
我什么时候kubectl logs [metrics-server-pod-name] -n kube-system
得到这个
E0611 14:36:57.527048 1 reststorage.go:129] unable to fetch node metrics for node "ip-172-20-xx-xxx.ec2.internal": no metrics known for node
E0611 14:36:57.527069 1 reststorage.go:129] unable to fetch node metrics for node "ip-172-20-xx-xx.ec2.internal": no metrics known for node
E0611 14:36:57.527075 1 reststorage.go:129] unable to fetch node metrics for node "ip-172-xx-114-xxx.ec2.internal": no metrics known for node
E0611 14:36:57.527079 1 reststorage.go:129] unable to fetch node metrics for node "ip-172-xx-xx-xxx.ec2.internal": no metrics known for node
E0611 14:36:57.527084 1 reststorage.go:129] unable to fetch node metrics for node "ip-172-xx-91-xx.ec2.internal": no metrics known for node
E0611 14:36:57.527088 1 reststorage.go:129] unable to fetch node metrics for node "ip-172-20-xx-xxx.ec2.internal": no metrics known for node
E0611 14:37:26.006830 1 manager.go:111] unable to fully collect metrics: [unable to fully scrape metrics from source kubelet_summary:ip-172-xx-36-103.ec2.internal: unable to fetch metrics from Kubelet ip-172-xx-36-103.ec2.internal (172.20.36.xxx): request failed - "401 Unauthorized", response: "Unauthorized", unable to fully scrape metrics from source kubelet_summary:ip-172-xx-65-xx.ec2.internal: unable to fetch metrics from Kubelet ip-172-20-65-xxx.ec2.internal (172.xx.65.xx): request failed - "401 Unauthorized", response: "Unauthorized", unable to fully scrape metrics from source kubelet_summary:ip-172-xx-114-xxx.ec2.internal: unable to fetch metrics from Kubelet ip-172-20-114-223.ec2.internal (172.xx.114.xxx): request failed - "401 Unauthorized", response: "Unauthorized", unable to fully scrape metrics from source kubelet_summary:ip-172-xx-63-xxx.ec2.internal: unable to fetch metrics from Kubelet ip-172-xx-63-xxx.ec2.internal (172.xx.63.xxx): request failed - "401 Unauthorized", response: "Unauthorized", unable to fully scrape metrics from source kubelet_summary:ip-172-xxx-91-xx.ec2.internal: unable to fetch metrics from Kubelet ip-172-xx-91-xxx.ec2.internal (172.xx.91.xxx): request failed - "401 Unauthorized", response: "Unauthorized", unable to fully scrape metrics from source kubelet_summary:ip-172-xxx-96-xxx.ec2.internal: unable to fetch metrics from Kubelet ip-172-xx-96-xxx.ec2.internal (172.xx.96.xxx): request failed - "401 Unauthorized", response: "Unauthorized"]
解决方案
选项一。
添加- --kubelet-preferred-address-types=InternalDNS,InternalIP,ExternalDNS,ExternalIP,Hostname
给你的metrics-server-deployment.yaml
,例如
command:
- /metrics-server
- --kubelet-insecure-tls
- --kubelet-preferred-address-types=InternalDNS,InternalIP,ExternalDNS,ExternalIP,Hostname
如果仍然不起作用,请尝试使用
选项二。
由于 metrics-server 从 coredns 解析主机名,将节点 IP 添加到 coredns configmap
kubectl edit configmap coredns -n kube-system
并添加
apiVersion: v1
data:
Corefile: |
.:53 {
errors
health
hosts {
192.168.199.100 master.qls.com
192.168.199.220 worker.qls.com
fallthrough
}
kubernetes cluster.local in-addr.arpa ip6.arpa {
pods insecure
upstream
fallthrough in-addr.arpa ip6.arpa
}
prometheus :9153
forward . /etc/resolv.conf
cache 30
loop
reload
loadbalance
}
kind: ConfigMap
metadata:
creationTimestamp: "2019-05-17T12:32:08Z"
name: coredns
namespace: kube-system
resourceVersion: "180"
selfLink: /api/v1/namespaces/kube-system/configmaps/coredns
uid: c93e5274-789f-11e9-a0ea-42010a9c0003
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