其他
避坑指南!如何在TKE上安装KubeSphere?
安装步骤
https://kubesphere.io/zh/docs/installing-on-kubernetes/hosted-kubernetes/install-ks-on-tencent-tke/
踩坑与注意事项
(一)cbs磁盘容量以10Gi为倍数
(二)卸载卡住与卸载不干净导致重装失败
编辑资源删除相应finalizer即可。
如果清理不干净,重装还会报错:
通常是关联的一些MutatingWebhookConfiguration,ValidatingWebhookConfiguration,ClusterRole, ClusterRoleBinding等资源没清理,可以根据ks-installer日志定位并清理。
(三)监控不兼容导致看不到超级节点中Pod的监控
KubeSphere部署完后看工作负载的Pod列表,没有超级节点上Pod的监控数据:
是因为KubeSphere启用的监控,采集cadvisor监控数据的采集规则是,访问所有节点的10250端口去拉监控数据,而超级节点的IP是个无法路由的“假”IP,所以拉不到数据。
解决方案:按照以下步骤增加自定义采集规则。
准备secret yaml scrape-config.yaml:
apiVersion: v1
kind: Secret
type: Opaque
metadata:
name: additional-scrape-configs
namespace: kubesphere-monitoring-system
stringData:
additional-scrape-configs.yaml: |-
- job_name: kubelet # eks cadvisor 监控,为兼容 ks 查询,固定 job 名为 kubelet
honor_timestamps: true
metrics_path: '/metrics'
params:
collect[]:
- 'ipvs'
scheme: http
kubernetes_sd_configs:
- role: pod
relabel_configs:
- source_labels: [__meta_kubernetes_pod_annotation_tke_cloud_tencent_com_pod_type]
regex: eklet
action: keep
- source_labels: [__meta_kubernetes_pod_phase]
regex: Running
action: keep
- source_labels: [__meta_kubernetes_pod_ip]
separator: ;
regex: (.*)
target_label: __address__
replacement: ${1}:9100
action: replace
- source_labels: [__meta_kubernetes_pod_name]
separator: ;
regex: (.*)
target_label: pod
replacement: ${1}
action: replace
- source_labels: [__meta_kubernetes_namespace]
separator: ;
regex: (.*)
target_label: namespace
replacement: ${1}
action: replace
metric_relabel_configs:
- source_labels: [__name__]
separator: ;
regex: container_.*
replacement: $1
action: keep
- target_label: metrics_path
replacement: /metrics/cadvisor
action: replace
- job_name: eks # eks cadvisor 之外的其它监控
honor_timestamps: true
metrics_path: '/metrics'
params:
collect[]:
- 'ipvs'
scheme: http
kubernetes_sd_configs:
- role: pod
relabel_configs:
- source_labels: [__meta_kubernetes_pod_annotation_tke_cloud_tencent_com_pod_type]
regex: eklet
action: keep
- source_labels: [__meta_kubernetes_pod_phase]
regex: Running
action: keep
- source_labels: [__meta_kubernetes_pod_ip]
separator: ;
regex: (.*)
target_label: __address__
replacement: ${1}:9100
action: replace
- source_labels: [__meta_kubernetes_pod_name]
separator: ;
regex: (.*)
target_label: pod
replacement: ${1}
action: replace
- source_labels: [__meta_kubernetes_namespace]
separator: ;
regex: (.*)
target_label: namespace
replacement: ${1}
action: replace
metric_relabel_configs:
- source_labels: [__name__]
separator: ;
regex: (container_.*|pod_.*|kubelet_.*)
replacement: $1
action: keep
创建secret:
kubectl apply -f scrape-config.yaml
修改Prometheus CR:
kubectl -n kubesphere-monitoring-system edit prometheuses.monitoring.coreos.com k8s
spec:
additionalScrapeConfigs:
key: additional-scrape-configs.yaml
name: additional-scrape-configs
s-apiserver出现crash
一般是kubesphere的chart包不完善,crd没装完整,可以手动装一下:
kubectl apply -f https://raw.githubusercontent.com/kubesphere/notification-manager/master/config/bundle.yaml
参考: https://kubesphere.com.cn/forum/d/7610-ks-330-ks-apiserver-crash/3
作者简介
imroc
腾讯云开发者社区【技思广益·腾讯技术人原创集】作者
腾讯云原生架构师,负责腾讯云原生产品解决方案与售后的技术支持,根据客户需求输出合理技术方案与最佳实践,为客户业务保驾护航。
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