KubeSphere接入外部Elasticsearch实战示例

Tertia ·
更新时间:2024-11-13
· 746 次阅读

目录

引言

前置步骤

备份 ks-installer

关闭内部 ES 对接外部 ES(如果未开启日志则省略)

关闭内部 ES 并卸载日志相关可插拔组件

创建 namespace

自定义 service 负载均衡 ES 节点

开启日志并对接外部 ES

验证

引言

在安装完成时候可以启用日志组件,这样会安装 ES 组件并可以收集所有部署组件的日志,也可以收集审计日志,然后可以很方便的在 KubeSphere 平台上进行日志查询。

但是在实际使用过程中发现使用 KubeSphere 自身的 ES 会很重,而且官方也建议我们将日志接入到外部的 ES 中减轻 Kubernetes 的压力。

以下为操作实战。

前置步骤

ES 集群需支持 http 协议

1️⃣ 搭建好外部 ES 集群,使用 http 协议(非本文重点)。

测试环境 IP: 172.30.10.226,172.30.10.191,172.30.10.184
port: 9200
username: elastic
password: changeme

2️⃣ 对 ES 做负载均衡。

有三种常见的做法:

使用 nginx 做负载均衡;

单协调节点;

通过自定义 service 和 endpoints 负载均衡。

本文档基于第三种负载均衡方案(通过 endpoints 负载)做对接。

备份 ks-installer

管理员账号登录 KubeSphere,在平台管理 - 集群管理 - CRD 中搜索 clusterconfiguration,在自定义资源中,点击 ks-installer 选择编辑 YAML ,复制备份。

关闭内部 ES 对接外部 ES(如果未开启日志则省略)

集群开启了内部 Elasticsearch,会存在如下系统组件和日志接收器

1️⃣ 系统组件:

2️⃣ 日志接收器:

容器日志、资源事件、审计日志(不开启不会有日志接收器)

接收器地址为内部 Elasticsearch 地址:elasticsearch-logging-data.kubesphere-logging-system.svc:9200

关闭内部 ES 并卸载日志相关可插拔组件

执行命令编辑 ks-installer:

$ kubectl edit cc ks-installer -n kubesphere-system

1️⃣ 卸载日志系统,将 ks-installer 参数的 logging.enabled 字段的值从 true 改为 false

2️⃣ 卸载事件日志系统,将 ks-installer 参数的 events.enabled 字段的值从 true 改为 false

3️⃣ 卸载审计日志系统,将 ks-installer 参数的 auditing.enabled 字段的值从 true 改为 false

4️⃣ 配置文件的最后,删除如下内容:

es: enabledTime: 2022-08-16T10:33:18CST status: enabled events: enabledTime: 2022-04-15T16:22:59CST status: enabled fluentbit: enabledTime: 2022-04-15T16:19:46CST status: enabled logging: enabledTime: 2022-04-15T16:22:59CST status: enabled

执行命令检查安装过程:

$ kubectl logs -n kubesphere-system $(kubectl get pod -n kubesphere-system -l app=ks-install -o jsonpath='{.items[0].metadata.name}') -f #日志出现以下内容说明重启成功 Collecting installation results ... ##################################################### ### Welcome to KubeSphere! ### ##################################################### Console: http://172.30.9.xxx:30880 Account: admin Password: P@88w0rd NOTES: 1. After you log into the console, please check the monitoring status of service components in "Cluster Management". If any service is not ready, please wait patiently until all components are up and running. 2. Please change the default password after login. ##################################################### https://kubesphere.io 2022-08-04 15:53:14 #####################################################

执行命令卸载相关可插拔组件:

###### 卸载 KubeSphere 日志系统 $ kubectl delete inputs.logging.kubesphere.io -n kubesphere-logging-system tail ###### 卸载 KubeSphere 事件系统 $ helm delete ks-events -n kubesphere-logging-system ###### 卸载 KubeSphere 审计 $ helm uninstall kube-auditing -n kubesphere-logging-system $ kubectl delete crd rules.auditing.kubesphere.io $ kubectl delete crd webhooks.auditing.kubesphere.io ###### 卸载包括 Elasticsearch 的日志系统 $ kubectl delete crd fluentbitconfigs.logging.kubesphere.io $ kubectl delete crd fluentbits.logging.kubesphere.io $ kubectl delete crd inputs.logging.kubesphere.io $ kubectl delete crd outputs.logging.kubesphere.io $ kubectl delete crd parsers.logging.kubesphere.io $ kubectl delete deployments.apps -n kubesphere-logging-system fluentbit-operator $ helm uninstall elasticsearch-logging --namespace kubesphere-logging-system $ kubectl delete deployment logsidecar-injector-deploy -n kubesphere-logging-system $ kubectl delete ns kubesphere-logging-system

卸载过程中可能出现如下异常:

crd 资源删除时出现问题,尝试使用如下命令

$ kubectl patch crd/crd名称 -p '{"metadata":{"finalizers":[]}}' --type=merge 创建 namespace $ kubectl create ns kubesphere-logging-system 自定义 service 负载均衡 ES 节点

es-service.yaml

apiVersion: v1 kind: Service metadata: labels: app: es-service name: es-service namespace: kubesphere-logging-system spec: ports: - port: 9200 name: es protocol: TCP targetPort: 9200

es-endpoints.yaml

ip 地址修改为真实要对接的 ES 集群节点的 IP 地址。

apiVersion: v1 kind: Endpoints metadata: labels: app: es-service name: es-service namespace: kubesphere-logging-system subsets: - addresses: - ip: 172.30.10.*** - ip: 172.30.10.*** - ip: 172.30.10.*** ports: - port: 9200 name: es protocol: TCP

执行命令创建自定义 SVC:

$ kubectl apply -f es-service.yaml -n kubesphere-logging-system $ kubectl apply -f es-endpoints.yaml -n kubesphere-logging-system #查看svc $ kubectl get svc -n kubesphere-logging-system NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE es-service ClusterIP 109.233.8.178 <none> 9200/TCP 10d #查看endpoints $ kubectl get ep -n kubesphere-logging-system NAME ENDPOINTS AGE es-service 172.30.10.***:9200,172.30.10.***:9200,172.30.10.***:9200 10d

“平台管理-集群管理-应用负载-服务”搜索 es-service。

es-service 服务地址:es-service.kubesphere-logging-system.svc。

开启日志并对接外部 ES

在平台管理 - 集群管理 - CRD 中搜索 clusterconfiguration,在自定义资源中,点击 ks-installer,修改配置:

开启容器日志、审计日志分别修改

logging.enabled: true

auditing.enabled: true

修改外部 ES 配置

es.basicAuth.enabled: true

es.basicAuth.password

es.basicAuth.username

es.externalElasticsearchUrl

es.externalElasticsearchPort

修改日志保存日期(默认 7 天)

logMaxAge

修改日志索引前缀(默认 logstash)

elkPrefix(开发:dev,测试:sit,生产:prod)

apiVersion: installer.kubesphere.io/v1alpha1 kind: ClusterConfiguration metadata: labels: version: v3.2.1 name: ks-installer namespace: kubesphere-system spec: alerting: enabled: false auditing: enabled: true # false改为true ... es: basicAuth: enabled: true # false改为true password: '****' # 密码 username: '****' # 用户名 data: volumeSize: 20Gi elkPrefix: sit #开发:dev 测试:sit 生产:prod externalElasticsearchPort: '9200' # 端口 externalElasticsearchUrl: es-service.kubesphere-logging-system.svc # 修改es-service logMaxAge: 7 #默认7天即可 master: volumeSize: 4Gi ...

执行命令检查安装过程

$ kubectl logs -n kubesphere-system $(kubectl get pod -n kubesphere-system -l app=ks-install -o jsonpath='{.items[0].metadata.name}') -f #日志出现以下内容说明重启成功 Collecting installation results ... ##################################################### ### Welcome to KubeSphere! ### ##################################################### Console: http://172.30.9.xxx:30880 Account: admin Password: P@88w0rd NOTES: 1. After you log into the console, please check the monitoring status of service components in "Cluster Management". If any service is not ready, please wait patiently until all components are up and running. 2. Please change the default password after login. ##################################################### https://kubesphere.io 2022-08-04 15:53:14 #####################################################

执行命令,查看对应的 ConfigMap 配置:

$ kubectl get configmap kubesphere-config -n kubesphere-system -o yaml #重点如下,看es的配置是否已经生效,host是否为自定义SVC,以及用户名密码索引是否正确 logging: host: http://es-service.kubesphere-logging-system.svc:9200 basicAuth: True username: "****" #此处为你填写的正确用户名 password: "****" #此处为你填写的正确密码 indexPrefix: ks-sit-log #不同环境对应dev\sit\prod auditing: enable: true webhookURL: https://kube-auditing-webhook-svc.kubesphere-logging-system.svc:6443/audit/webhook/event host: http://es-service.kubesphere-logging-system.svc:9200 basicAuth: True username: "****" #此处为你填写的正确用户名 password: "****" #此处为你填写的正确密码 indexPrefix: ks-sit-auditing #不同环境对应dev\sit\prod

执行命令编辑对应 output(如果已自动修改则不需要手动修改):

修改 host

修改索引 (开发、测试、生产前缀分别对应 ks-dev-、ks-sit-、ks-prod-)

#修改es的output $ kubectl edit output es -n kubesphere-logging-system #修改host 和 logstashPrefix # host: es-service.kubesphere-logging-system.svc # logstashPrefix: ks-对应环境-log #如下: spec: es: generateID: true host: es-service.kubesphere-logging-system.svc # host地址 httpPassword: valueFrom: secretKeyRef: key: password name: elasticsearch-credentials httpUser: valueFrom: secretKeyRef: key: username name: elasticsearch-credentials logstashFormat: true logstashPrefix: ks-sit-log # 修改此处为对应环境的日志索引 port: 9200 timeKey: '@timestamp' matchRegex: '(?:kube|service)\.(.*)' #修改es-auditing的output $ kubectl edit output es-auditing -n kubesphere-logging-system #修改host 和 logstashPrefix # host: es-service.kubesphere-logging-system.svc # logstashPrefix: ks-对应环境-auditing #如下 spec: es: generateID: true host: es-service.kubesphere-logging-system.svc # host地址 httpPassword: valueFrom: secretKeyRef: key: password name: elasticsearch-credentials httpUser: valueFrom: secretKeyRef: key: username name: elasticsearch-credentials logstashFormat: true logstashPrefix: ks-sit-auditing # 修改此处为对应环境的日志索引 port: 9200 match: kube_auditing

重启 ks-apiserver

$ kubectl rollout restart deployment ks-apiserver -n kubesphere-system 验证 $ kubectl get po -n kubesphere-logging-system NAME READY STATUS RESTARTS AGE elasticsearch-logging-curator-elasticsearch-curator-276864h2xt2 0/1 Error 0 38h elasticsearch-logging-curator-elasticsearch-curator-276864wc6bs 0/1 Completed 0 38h elasticsearch-logging-curator-elasticsearch-curator-276879865wl 0/1 Completed 0 14h elasticsearch-logging-curator-elasticsearch-curator-276879l7xpf 0/1 Error 0 14h fluent-bit-4vzq5 1/1 Running 0 47h fluent-bit-6ckvm 1/1 Running 0 25h fluent-bit-6jt8d 1/1 Running 0 47h fluent-bit-88crg 1/1 Running 0 47h fluent-bit-9ps6z 1/1 Running 0 47h fluent-bit-djhtx 1/1 Running 0 47h fluent-bit-dmpfv 1/1 Running 0 47h fluent-bit-dtr7z 1/1 Running 0 47h fluent-bit-flxbt 1/1 Running 0 47h fluent-bit-fnxdk 1/1 Running 0 47h fluent-bit-gqbrl 1/1 Running 0 47h fluent-bit-kbzsj 1/1 Running 0 47h fluent-bit-lbnnh 1/1 Running 0 47h fluent-bit-nq4g8 1/1 Running 0 47h fluent-bit-q5shz 1/1 Running 0 47h fluent-bit-qrb7v 1/1 Running 0 47h fluent-bit-r26fk 1/1 Running 0 47h fluent-bit-rfrpd 1/1 Running 0 47h fluent-bit-s8869 1/1 Running 0 47h fluent-bit-sp5k4 1/1 Running 0 47h fluent-bit-vjvhl 1/1 Running 0 47h fluent-bit-xkksv 1/1 Running 0 47h fluent-bit-xrlz4 1/1 Running 0 47h fluentbit-operator-745bf5559f-vnz8w 1/1 Running 0 47h kube-auditing-operator-84857bf967-ftbjr 1/1 Running 0 47h kube-auditing-webhook-deploy-64cfb8c9f8-hf8g8 1/1 Running 0 47h kube-auditing-webhook-deploy-64cfb8c9f8-zf4rd 1/1 Running 0 47h logsidecar-injector-deploy-5fb6fdc6dd-fj5vm 2/2 Running 0 47h logsidecar-injector-deploy-5fb6fdc6dd-qbhdg 2/2 Running 0 47h

日志接收器:

查询审计日志:

以上就是KubeSphere接入外部Elasticsearch实战示例的详细内容,更多关于KubeSphere接入Elasticsearch的资料请关注软件开发网其它相关文章!



示例 elasticsearch

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