昆明比较好的网站开发公司,大连专业模板网站制作公司,无极电影网迅雷下载,wordpress分类网站背景在 Kubernetes 开源生态中#xff0c;资源监控有 metrics-server、Prometheus等#xff0c;但这些监控并不能实时推送 Kubernetes 事件#xff0c;监控准确性也不足。当 kubernetes 集群中发生 Pod因为 OOM 、拉取不到镜像、健康检查不通过等错误导致重启#xff0c;集…背景在 Kubernetes 开源生态中资源监控有 metrics-server、Prometheus等但这些监控并不能实时推送 Kubernetes 事件监控准确性也不足。当 kubernetes 集群中发生 Pod因为 OOM 、拉取不到镜像、健康检查不通过等错误导致重启集群管理员其实是不知道的因为 Kubernetes 有自我修复机制Pod宕掉可以重新启动一个。这样让集群管理员很难立即发现服务问题。Kubernetes 事件Kubernetes中事件分为两种Warning事件表示产生这个事件的状态转换是在非预期的状态之间产生的Normal事件表示期望到达的状态和目前达到的状态是一致的例子$ kubectl get eventsLAST SEEN TYPE REASON OBJECT MESSAGE58m Normal ScalingReplicaSet deployment/demo Scaled down replica set demo-8b85c64cb to 05m7s Warning Unhealthy pod/demo-79844f78b8-nd5jz Readiness probe failed: Get http://192.168.1.68:8080/healthCheck: dial tcp 192.168.1.68:8080: connect: connection refused如何监听k8s事件并通知阿里云开源 Kubernetes 事件离线工具 kube-eventer能很好的解决这个问题。kube-eventer 简介kube-eventer 是一个事件发射器它将 kubernetes 事件发送到接收器(例如dingtalkslskafka微信等)。kubernetes 的核心设计概念是状态机。因此Normal 当转移到所需状态时会有事件 Warning。kube-eventer 架构图用法下面是以 钉钉 做为接收器通过钉钉机器人通知到相关人员或者相关群获取钉钉群机器人 Token如下图安装事件处理程序并配置接收器apiVersion: apps/v1beta2kind: Deploymentmetadata: labels: name: kube-eventer name: kube-eventer namespace: kube-systemspec: replicas: 1 selector: matchLabels: app: kube-eventer template: metadata: labels: app: kube-eventer annotations: scheduler.alpha.kubernetes.io/critical-pod: spec: dnsPolicy: ClusterFirstWithHostNet serviceAccount: kube-eventer containers: - image: registry.aliyuncs.com/acs/kube-eventer-amd64:v1.1.0-63e7f98-aliyun name: kube-eventer command: - /kube-eventer - --sourcekubernetes:https://kubernetes.default ## .e.g,dingtalk sink demo - --sinkdingtalk:[your_webhook_url]label[your_cluster_id]level[Normal or Warning (default)] env: # If TZ is assigned, set the TZ value as the time zone - name: TZ value: America/New_York volumeMounts: - name: localtime mountPath: /etc/localtime readOnly: true - name: zoneinfo mountPath: /usr/share/zoneinfo readOnly: true resources: requests: cpu: 100m memory: 100Mi limits: cpu: 500m memory: 250Mi volumes: - name: localtime hostPath: path: /etc/localtime - name: zoneinfo hostPath: path: /usr/share/zoneinfo---apiVersion: rbac.authorization.k8s.io/v1kind: ClusterRolemetadata: name: kube-eventerrules: - apiGroups: - resources: - events verbs: - get - list - watch---apiVersion: rbac.authorization.k8s.io/v1kind: ClusterRoleBindingmetadata: annotations: name: kube-eventerroleRef: apiGroup: rbac.authorization.k8s.io kind: ClusterRole name: kube-eventersubjects: - kind: ServiceAccount name: kube-eventer namespace: kube-system---apiVersion: v1kind: ServiceAccountmetadata: name: kube-eventer namespace: kube-system查看钉钉告警事件支持下列通知程序钉钉阿里云sls服务elasticsearch 服务honeycomb 服务influxdb 数据库kafka 数据库mysql 数据库微信项目地址https://github.com/AliyunContainerService/kube-eventer参考链接https://github.com/AliyunContainerService/kube-eventer
