上传文件至 kubernetes-MD
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<h1><center>利用kubernetes部署微服务项目</center></h1>
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著作：行癫 <盗版必究>
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------
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## 一：环境准备
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#### 1.kubernetes集群环境
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集群环境检查
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```shell
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[root@master ~]# kubectl get node
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NAME STATUS ROLES AGE VERSION
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master Ready control-plane,master 11d v1.23.1
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node-1 Ready <none> 11d v1.23.1
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node-2 Ready <none> 11d v1.23.1
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node-3 Ready <none> 11d v1.23.1
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```
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#### 2.harbor环境
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harbor环境检查
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<img src="https://xingdian-image.oss-cn-beijing.aliyuncs.com/xingdian-image/image-20220508222722564.png" alt="image-20220508222722564" style="zoom:50%;" />
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## 二：项目准备
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#### 1.项目包
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#### 2.项目端口准备
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| 服务 | 内部端口 | 外部端口 |
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| :---------------------: | :------: | -------- |
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| tensquare_eureka_server | 10086 | 30020 |
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| tensquare_zuul | 10020 | 30021 |
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| tensquare_admin_service | 9001 | 30024 |
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| tensquare_gathering | 9002 | 30022 |
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| mysql | 3306 | 30023 |
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## 三：项目部署
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#### 1.eureka部署
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application.yml文件修改
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```
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spring:
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application:
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name: EUREKA-HA
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---
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#单机配置
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server:
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port: 10086
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eureka:
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instance:
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hostname: localhost
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client:
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register-with-eureka: false
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fetch-registry: false
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service-url:
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defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
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#defaultZone: http://pod主机名称.service名称:端口/eureka/
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```
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Dockerfile创建：
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```shell
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[root@nfs-harbor jdk]# ls
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Dockerfile tensquare_eureka_server-1.0-SNAPSHOT.jar jdk-8u211-linux-x64.tar.gz
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[root@nfs-harbor jdk]# cat Dockerfile
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FROM xingdian
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MAINTAINER "xingdian" <xingdian@gmail.com>
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ADD jdk-8u211-linux-x64.tar.gz /usr/local/
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RUN mv /usr/local/jdk1.8.0_211 /usr/local/java
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ENV JAVA_HOME /usr/local/java/
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ENV PATH $PATH:$JAVA_HOME/bin
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COPY tensquare_eureka_server-1.0-SNAPSHOT.jar /usr/local
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EXPOSE 10086
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CMD java -jar /usr/local/tensquare_eureka_server-1.0-SNAPSHOT.jar
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```
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镜像构建：
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```shell
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[root@nfs-harbor jdk]# docker build -t eureka:v2022.1 .
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```
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上传到镜像仓库：
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```shell
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[root@nfs-harbor jdk]# docker tag eureka:v2022.1 10.0.0.230/xingdian/eureka:v2022.1
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[root@nfs-harbor jdk]# docker push 10.0.0.230/xingdian/eureka:v2022.1
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```
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仓库验证：
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<img src="https://xingdian-image.oss-cn-beijing.aliyuncs.com/xingdian-image/image-20220508224930884.png" alt="image-20220508224930884" style="zoom:50%;" />
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#### 2.tensquare_zuul部署
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Dockerfile创建：
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```shell
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[root@nfs-harbor jdk]# cat Dockerfile
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FROM xingdian
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MAINTAINER "xingdian" <xingdian@gmail.com>
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ADD jdk-8u211-linux-x64.tar.gz /usr/local/
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RUN mv /usr/local/jdk1.8.0_211 /usr/local/java
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ENV JAVA_HOME /usr/local/java/
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ENV PATH $PATH:$JAVA_HOME/bin
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COPY tensquare_zuul-1.0-SNAPSHOT.jar /usr/local
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EXPOSE 10020
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CMD java -jar /usr/local/tensquare_zuul-1.0-SNAPSHOT.jar
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```
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镜像构建：
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```shell
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[root@nfs-harbor jdk]# docker build -t zuul:v2022.1 .
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```
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镜像上传：
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```shell
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[root@nfs-harbor jdk]# docker tag zuul:v2022.1 10.0.0.230/xingdian/zuul:v2022.1
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[root@nfs-harbor jdk]# docker push 10.0.0.230/xingdian/zuul:v2022.1
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```
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仓库验证：
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<img src="https://xingdian-image.oss-cn-beijing.aliyuncs.com/xingdian-image/image-20220508230055752.png" alt="image-20220508230055752" style="zoom:50%;" />
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注意：
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在构建之前使用vim修改源码jar包，修改的内容如下（文件：application.yml）：
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```yml
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server:
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port: 10020 # 端口
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# 基本服务信息
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spring:
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application:
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name: tensquare-zuul # 服务ID
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# Eureka配置
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eureka:
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client:
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service-url:
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#defaultZone: http://192.168.66.103:10086/eureka,http://192.168.66.104:10086/eureka # Eureka访问地址
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#tensquare_eureka_server地址和端口(修改)
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defaultZone: http://10.0.0.220:30020/eureka
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instance:
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prefer-ip-address: true
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# 修改ribbon的超时时间
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ribbon:
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ConnectTimeout: 1500 # 连接超时时间，默认500ms
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ReadTimeout: 3000 # 请求超时时间，默认1000ms
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# 修改hystrix的熔断超时时间
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hystrix:
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command:
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default:
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execution:
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isolation:
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thread:
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timeoutInMillisecond: 2000 # 熔断超时时长，默认1000ms
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# 网关路由配置
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zuul:
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routes:
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admin:
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path: /admin/**
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serviceId: tensquare-admin-service
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gathering:
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path: /gathering/**
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serviceId: tensquare-gathering
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# jwt参数
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jwt:
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config:
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key: itcast
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ttl: 1800000
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```
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#### 3.mysql部署
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镜像获取（使用官方镜像）：
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```shell
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[root@nfs-harbor mysql]# docker pull mysql:5.7.38
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```
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镜像上传：
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```shell
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[root@nfs-harbor mysql]# docker tag mysql:5.7.38 10.0.0.230/xingdian/mysql:v1
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[root@nfs-harbor mysql]# docker push 10.0.0.230/xingdian/mysql:v1
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```
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#### 4.admin_service部署
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Dockerfile创建：
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```shell
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[root@nfs-harbor jdk]# cat Dockerfile
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FROM xingdian
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MAINTAINER "xingdian" <xingdian@gmail.com>
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ADD jdk-8u211-linux-x64.tar.gz /usr/local/
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RUN mv /usr/local/jdk1.8.0_211 /usr/local/java
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ENV JAVA_HOME /usr/local/java/
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ENV PATH $PATH:$JAVA_HOME/bin
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COPY tensquare_admin_service-1.0-SNAPSHOT.jar /usr/local
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EXPOSE 9001
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CMD java -jar /usr/local/tensquare_admin_service-1.0-SNAPSHOT.jar
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```
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镜像构建：
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```shell
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[root@nfs-harbor jdk]# docker build -t admin_service:v2022.1 .
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```
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镜像上传：
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```shell
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[root@nfs-harbor jdk]# docker tag admin_service:v2022.1 10.0.0.230/xingdian/admin_service:v2022.1
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[root@nfs-harbor jdk]# docker push 10.0.0.230/xingdian/admin_service:v2022.1
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```
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注意：
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在构建之前使用vim修改源码jar包，修改的内容如下（文件：application.yml）：
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```yml
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spring:
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application:
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name: tensquare-admin-service #指定服务名
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datasource:
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driverClassName: com.mysql.jdbc.Driver
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#数据库地址(修改)
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url: jdbc:mysql://10.0.0.220:30023/tensquare_user?characterEncoding=UTF8&useSSL=false
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#数据库账户名(修改)
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username: root
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#数据库账户密码(修改)
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password: mysql
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jpa:
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database: mysql
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show-sql: true
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#Eureka配置
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eureka:
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client:
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service-url:
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#defaultZone: http://192.168.66.103:10086/eureka,http://192.168.66.104:10086/eureka
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##tensquare_eureka_server地址和端口(修改)
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defaultZone: http://10.0.0.220:30020/eureka
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instance:
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lease-renewal-interval-in-seconds: 5 # 每隔5秒发送一次心跳
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lease-expiration-duration-in-seconds: 10 # 10秒不发送就过期
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prefer-ip-address: true
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# jwt参数
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jwt:
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config:
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key: itcast
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ttl: 1800000
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```
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#### 5.gathering部署
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Dockerfile创建：
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```shell
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[root@nfs-harbor jdk]# cat Dockerfile
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FROM xingdian
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MAINTAINER "xingdian" <xingdian@gmail.com>
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ADD jdk-8u211-linux-x64.tar.gz /usr/local/
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RUN mv /usr/local/jdk1.8.0_211 /usr/local/java
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ENV JAVA_HOME /usr/local/java/
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ENV PATH $PATH:$JAVA_HOME/bin
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COPY tensquare_gathering-1.0-SNAPSHOT.jar /usr/local
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CMD java -jar /usr/local/tensquare_gathering-1.0-SNAPSHOT.jar
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```
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镜像构建：
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```shell
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[root@nfs-harbor jdk]# docker build -t gathering:v2022.1 .
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```
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镜像上传：
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```shell
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[root@nfs-harbor jdk]# docker tag gathering:v2022.1 10.0.0.230/xingdian/gathering:v2022.1
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[root@nfs-harbor jdk]# docker push 10.0.0.230/xingdian/gathering:v2022.1
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```
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仓库验证：
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<img src="https://xingdian-image.oss-cn-beijing.aliyuncs.com/xingdian-image/image-20220508233621370.png" alt="image-20220508233621370" style="zoom:50%;" />
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注意：
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```yml
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server:
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port: 9002
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spring:
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application:
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name: tensquare-gathering #指定服务名
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datasource:
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driverClassName: com.mysql.jdbc.Driver
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#数据库地址(修改)
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url: jdbc:mysql://10.0.0.220:30023/tensquare_gathering?characterEncoding=UTF8&useSSL=false
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#数据库地址(修改)
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username: root
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#数据库账户密码(修改)
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password: mysql
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jpa:
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database: mysql
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show-sql: true
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#Eureka客户端配置
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eureka:
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client:
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service-url:
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#defaultZone: http://192.168.66.103:10086/eureka,http://192.168.66.104:10086/eureka
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#tensquare_eureka_server地址和端口(修改)
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defaultZone: http://10.0.0.220:30020/eureka
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instance:
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lease-renewal-interval-in-seconds: 5 # 每隔5秒发送一次心跳
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lease-expiration-duration-in-seconds: 10 # 10秒不发送就过期
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prefer-ip-address: true
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```
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## 四：kubernetes集群部署
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#### 1.所有镜像验证
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#### 2.部署eureka
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Eureka之Deployment创建：
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```shell
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[root@master xingdian]# cat Eureka.yaml
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: eureka-deployment
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labels:
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app: eureka
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: eureka
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template:
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metadata:
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labels:
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app: eureka
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spec:
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containers:
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- name: nginx
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image: 10.0.0.230/xingdian/eureka:v2022.1
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ports:
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- containerPort: 10086
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: eureka-service
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labels:
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app: eureka
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spec:
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type: NodePort
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ports:
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- port: 10086
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name: eureka
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targetPort: 10086
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nodePort: 30020
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selector:
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app: eureka
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```
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创建：
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```shell
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[root@master xingdian]# kubectl create -f Eureka.yaml
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deployment.apps/eureka-deployment created
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service/eureka-service created
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```
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验证：
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```shell
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[root@master xingdian]# kubectl get pod
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NAME READY STATUS RESTARTS AGE
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eureka-deployment-69c575d95-hx8s6 1/1 Running 0 2m20s
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[root@master xingdian]# kubectl get svc
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NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
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eureka-service NodePort 10.107.243.240 <none> 10086:30020/TCP 2m22s
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```
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<img src="https://xingdian-image.oss-cn-beijing.aliyuncs.com/xingdian-image/image-20220508235409218.png" alt="image-20220508235409218" style="zoom:50%;" />
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#### 3.部署zuul
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zuul之Deployment创建：
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```shell
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[root@master xingdian]# cat Zuul.yaml
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: zuul-deployment
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labels:
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app: zuul
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: zuul
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template:
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metadata:
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labels:
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app: zuul
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spec:
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containers:
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- name: zuul
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image: 10.0.0.230/xingdian/zuul:v2022.1
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ports:
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- containerPort: 10020
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: zuul-service
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labels:
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app: zuul
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spec:
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type: NodePort
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ports:
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- port: 10020
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name: zuul
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targetPort: 10086
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nodePort: 30021
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selector:
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app: zuul
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```
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创建：
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```shell
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[root@master xingdian]# kubectl create -f Zuul.yaml
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```
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验证：
|
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```shell
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[root@master xingdian]# kubectl get pod
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NAME READY STATUS RESTARTS AGE
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eureka-deployment-69c575d95-hx8s6 1/1 Running 0 7m42s
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zuul-deployment-6d76647cf9-6rmdj 1/1 Running 0 10s
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[root@master xingdian]# kubectl get svc
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NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
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eureka-service NodePort 10.107.243.240 <none> 10086:30020/TCP 7m37s
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kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 11d
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zuul-service NodePort 10.103.35.255 <none> 10020:30021/TCP 5s
|
||||
```
|
||||
|
||||
验证是否加入注册中心：
|
||||
|
||||
|
||||
|
||||
#### 4.mysql部署
|
||||
|
||||
mysql之rc和svc创建：
|
||||
|
||||
```shell
|
||||
[root@master mysql]# cat mysql-svc.yaml
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
name: mysql-svc
|
||||
labels:
|
||||
name: mysql-svc
|
||||
spec:
|
||||
type: NodePort
|
||||
ports:
|
||||
- port: 3306
|
||||
protocol: TCP
|
||||
targetPort: 3306
|
||||
name: http
|
||||
nodePort: 30023
|
||||
selector:
|
||||
name: mysql-pod
|
||||
[root@master mysql]# cat mysql-rc.yaml
|
||||
apiVersion: v1
|
||||
kind: ReplicationController
|
||||
metadata:
|
||||
name: mysql-rc
|
||||
labels:
|
||||
name: mysql-rc
|
||||
spec:
|
||||
replicas: 1
|
||||
selector:
|
||||
name: mysql-pod
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
name: mysql-pod
|
||||
spec:
|
||||
containers:
|
||||
- name: mysql
|
||||
image: 10.0.0.230/xingdian/mysql:v1
|
||||
imagePullPolicy: IfNotPresent
|
||||
ports:
|
||||
- containerPort: 3306
|
||||
env:
|
||||
- name: MYSQL_ROOT_PASSWORD
|
||||
value: "mysql"
|
||||
```
|
||||
|
||||
创建：
|
||||
|
||||
```shell
|
||||
[root@master mysql]# kubectl create -f mysql-rc.yaml
|
||||
replicationcontroller/mysql-rc created
|
||||
[root@master mysql]# kubectl create -f mysql-svc.yaml
|
||||
service/mysql-svc created
|
||||
```
|
||||
|
||||
验证：
|
||||
|
||||
```shell
|
||||
[root@master mysql]# kubectl get pod
|
||||
NAME READY STATUS RESTARTS AGE
|
||||
eureka-deployment-69c575d95-hx8s6 1/1 Running 0 29m
|
||||
mysql-rc-sbdcl 1/1 Running 0 8m41s
|
||||
zuul-deployment-6d76647cf9-gpsms 1/1 Running 0 21m
|
||||
[root@master mysql]# kubectl get svc
|
||||
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
|
||||
eureka-service NodePort 10.107.243.240 <none> 10086:30020/TCP 29m
|
||||
kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 11d
|
||||
mysql-svc NodePort 10.98.4.62 <none> 3306:30023/TCP 9m1s
|
||||
zuul-service NodePort 10.103.35.255 <none> 10020:30021/TCP 22m
|
||||
```
|
||||
|
||||
数据库创建：
|
||||
|
||||
```shell
|
||||
[root@nfs-harbor ~]# mysql -u root -pmysql -h 10.0.0.220 -P 30023
|
||||
Welcome to the MariaDB monitor. Commands end with ; or \g.
|
||||
Your MySQL connection id is 2
|
||||
Server version: 5.7.38 MySQL Community Server (GPL)
|
||||
|
||||
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
|
||||
|
||||
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
|
||||
|
||||
MySQL [(none)]> create database tensquare_user charset=utf8;
|
||||
Query OK, 1 row affected (0.00 sec)
|
||||
|
||||
MySQL [(none)]> create database tensquare_gathering charset=utf8;
|
||||
Query OK, 1 row affected (0.01 sec)
|
||||
|
||||
MySQL [(none)]> exit
|
||||
Bye
|
||||
```
|
||||
|
||||
数据导入：
|
||||
|
||||
```shell
|
||||
[root@nfs-harbor ~]# mysql -u root -pmysql -h 10.0.0.220 -P 30023
|
||||
Welcome to the MariaDB monitor. Commands end with ; or \g.
|
||||
Your MySQL connection id is 3
|
||||
Server version: 5.7.38 MySQL Community Server (GPL)
|
||||
|
||||
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
|
||||
|
||||
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
|
||||
|
||||
MySQL [(none)]> source /var/ftp/share/tensquare_user.sql
|
||||
|
||||
MySQL [tensquare_user]> source /var/ftp/share/tensquare_gathering.sql
|
||||
|
||||
MySQL [tensquare_gathering]> exit
|
||||
Bye
|
||||
```
|
||||
|
||||
验证：
|
||||
|
||||
```shell
|
||||
[root@nfs-harbor ~]# mysql -u root -pmysql -h 10.0.0.220 -P 30023
|
||||
Welcome to the MariaDB monitor. Commands end with ; or \g.
|
||||
Your MySQL connection id is 3
|
||||
Server version: 5.7.38 MySQL Community Server (GPL)
|
||||
|
||||
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
|
||||
|
||||
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
|
||||
|
||||
MySQL [(none)]> show databases;
|
||||
+---------------------+
|
||||
| Database |
|
||||
+---------------------+
|
||||
| information_schema |
|
||||
| mysql |
|
||||
| performance_schema |
|
||||
| sys |
|
||||
| tensquare_gathering |
|
||||
| tensquare_user |
|
||||
+---------------------+
|
||||
6 rows in set (0.00 sec)
|
||||
|
||||
MySQL [(none)]> use tensquare_gathering
|
||||
Reading table information for completion of table and column names
|
||||
You can turn off this feature to get a quicker startup with -A
|
||||
|
||||
Database changed
|
||||
MySQL [tensquare_gathering]> show tables;
|
||||
+-------------------------------+
|
||||
| Tables_in_tensquare_gathering |
|
||||
+-------------------------------+
|
||||
| tb_city |
|
||||
| tb_gathering |
|
||||
+-------------------------------+
|
||||
2 rows in set (0.00 sec)
|
||||
|
||||
MySQL [tensquare_gathering]> use tensquare_user
|
||||
Reading table information for completion of table and column names
|
||||
You can turn off this feature to get a quicker startup with -A
|
||||
|
||||
Database changed
|
||||
MySQL [tensquare_user]> show tables;
|
||||
+--------------------------+
|
||||
| Tables_in_tensquare_user |
|
||||
+--------------------------+
|
||||
| tb_admin |
|
||||
+--------------------------+
|
||||
1 row in set (0.01 sec)
|
||||
```
|
||||
|
||||
#### 5.admin_service部署
|
||||
|
||||
admin_service之Deployment创建：
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# cat Admin-service.yaml
|
||||
apiVersion: apps/v1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
name: admin-deployment
|
||||
labels:
|
||||
app: admin
|
||||
spec:
|
||||
replicas: 1
|
||||
selector:
|
||||
matchLabels:
|
||||
app: admin
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app: admin
|
||||
spec:
|
||||
containers:
|
||||
- name: admin
|
||||
image: 10.0.0.230/xingdian/admin_service:v2022.1
|
||||
ports:
|
||||
- containerPort: 9001
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
name: admin-service
|
||||
labels:
|
||||
app: admin
|
||||
spec:
|
||||
type: NodePort
|
||||
ports:
|
||||
- port: 9001
|
||||
name: admin
|
||||
targetPort: 9001
|
||||
nodePort: 30024
|
||||
selector:
|
||||
app: admin
|
||||
```
|
||||
|
||||
创建：
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# kubectl create -f Admin-service.yaml
|
||||
deployment.apps/admin-deployment created
|
||||
service/admin-service created
|
||||
```
|
||||
|
||||
验证：
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# kubectl get pod
|
||||
NAME READY STATUS RESTARTS AGE
|
||||
admin-deployment-54c5664d69-l2lbc 1/1 Running 0 23s
|
||||
eureka-deployment-69c575d95-mrj66 1/1 Running 0 47m
|
||||
mysql-rc-zgxk4 1/1 Running 0 7m23s
|
||||
zuul-deployment-6d76647cf9-gpsms 1/1 Running 0 39m
|
||||
[root@master xingdian]# kubectl get svc
|
||||
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
|
||||
admin-service NodePort 10.101.251.47 <none> 9001:30024/TCP 6s
|
||||
eureka-service NodePort 10.107.243.240 <none> 10086:30020/TCP 47m
|
||||
kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 11d
|
||||
mysql-svc NodePort 10.98.4.62 <none> 3306:30023/TCP 26m
|
||||
zuul-service NodePort 10.103.35.255 <none> 10020:30021/TCP 39m
|
||||
```
|
||||
|
||||
注册中心验证：
|
||||
|
||||
<img src="https://xingdian-image.oss-cn-beijing.aliyuncs.com/xingdian-image/image-20220509013257937.png" alt="image-20220509013257937" style="zoom:50%;" />
|
||||
|
||||
#### 6.gathering部署
|
||||
|
||||
gathering之Deployment创建：
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# cat Gathering.yaml
|
||||
apiVersion: apps/v1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
name: gathering-deployment
|
||||
labels:
|
||||
app: gathering
|
||||
spec:
|
||||
replicas: 1
|
||||
selector:
|
||||
matchLabels:
|
||||
app: gathering
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app: gathering
|
||||
spec:
|
||||
containers:
|
||||
- name: nginx
|
||||
image: 10.0.0.230/xingdian/gathering:v2022.1
|
||||
ports:
|
||||
- containerPort: 9002
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
name: gathering-service
|
||||
labels:
|
||||
app: gathering
|
||||
spec:
|
||||
type: NodePort
|
||||
ports:
|
||||
- port: 9002
|
||||
name: gathering
|
||||
targetPort: 9002
|
||||
nodePort: 30022
|
||||
selector:
|
||||
app: gathering
|
||||
```
|
||||
|
||||
创建：
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# kubectl create -f Gathering.yaml
|
||||
deployment.apps/gathering-deployment created
|
||||
service/gathering-service created
|
||||
```
|
||||
|
||||
验证：
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# kubectl get pod
|
||||
NAME READY STATUS RESTARTS AGE
|
||||
admin-deployment-54c5664d69-2tqlw 1/1 Running 0 33s
|
||||
eureka-deployment-69c575d95-xzx9t 1/1 Running 0 13m
|
||||
gathering-deployment-6fcdd5d5-wbsxt 1/1 Running 0 27s
|
||||
mysql-rc-zgxk4 1/1 Running 0 28m
|
||||
zuul-deployment-6d76647cf9-jkm7f 1/1 Running 0 12m
|
||||
```
|
||||
|
||||
注册中心验证：
|
||||
|
||||
<img src="https://xingdian-image.oss-cn-beijing.aliyuncs.com/xingdian-image/image-20220509005823566.png" alt="image-20220509005823566" style="zoom:50%;" />
|
||||
|
||||
#### 7.浏览器测试API接口
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,335 @@
|
|||
<h1><center>利用kubernetes部署网站项目</center></h1>
|
||||
|
||||
著作：行癫 <盗版必究>
|
||||
|
||||
------
|
||||
|
||||
## 一：环境准备
|
||||
|
||||
#### 1.kubernetes集群
|
||||
|
||||
集群正常运行，例如使用以下命令检查
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl get node
|
||||
NAME STATUS ROLES AGE VERSION
|
||||
master Ready control-plane,master 5d19h v1.23.1
|
||||
node-1 Ready <none> 5d19h v1.23.1
|
||||
node-2 Ready <none> 5d19h v1.23.1
|
||||
node-3 Ready <none> 5d19h v1.23.1
|
||||
```
|
||||
|
||||
#### 2.harbor私有仓库
|
||||
|
||||
主要给kubernetes集群提供镜像服务
|
||||
|
||||
<img src="https://xingdian-image.oss-cn-beijing.aliyuncs.com/xingdian-image/image-20220502184026483.png" alt="image-20220502184026483" style="zoom:50%;" />
|
||||
## 二：项目部署
|
||||
|
||||
#### 1.镜像构建
|
||||
|
||||
软件下载地址：
|
||||
|
||||
```shell
|
||||
wget https://nginx.org/download/nginx-1.20.2.tar.gz
|
||||
```
|
||||
|
||||
项目包下载地址：
|
||||
|
||||
```shell
|
||||
git clone https://github.com/blackmed/xingdian-project.git
|
||||
```
|
||||
|
||||
构建centos基础镜像Dockerfile文件：
|
||||
|
||||
```shell
|
||||
root@nfs-harbor ~]# cat Dockerfile
|
||||
FROM daocloud.io/centos:7
|
||||
MAINTAINER "xingdianvip@gmail.com"
|
||||
ENV container docker
|
||||
RUN yum -y swap -- remove fakesystemd -- install systemd systemd-libs
|
||||
RUN yum -y update; yum clean all; \
|
||||
(cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done); \
|
||||
rm -f /lib/systemd/system/multi-user.target.wants/*;\
|
||||
rm -f /etc/systemd/system/*.wants/*;\
|
||||
rm -f /lib/systemd/system/local-fs.target.wants/*; \
|
||||
rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
|
||||
rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
|
||||
rm -f /lib/systemd/system/basic.target.wants/*;\
|
||||
rm -f /lib/systemd/system/anaconda.target.wants/*;
|
||||
VOLUME [ "/sys/fs/cgroup" ]
|
||||
CMD ["/usr/sbin/init"]
|
||||
root@nfs-harbor ~]# docker bulid -t xingdian .
|
||||
```
|
||||
|
||||
构建项目镜像：
|
||||
|
||||
```shell
|
||||
[root@nfs-harbor nginx]# cat Dockerfile
|
||||
FROM xingdian
|
||||
ADD nginx-1.20.2.tar.gz /usr/local
|
||||
RUN rm -rf /etc/yum.repos.d/*
|
||||
COPY CentOS-Base.repo /etc/yum.repos.d/
|
||||
COPY epel.repo /etc/yum.repos.d/
|
||||
RUN yum clean all && yum makecache fast
|
||||
RUN yum -y install gcc gcc-c++ openssl openssl-devel pcre-devel zlib-devel make
|
||||
WORKDIR /usr/local/nginx-1.20.2
|
||||
RUN ./configure --prefix=/usr/local/nginx
|
||||
RUN make && make install
|
||||
WORKDIR /usr/local/nginx
|
||||
ENV PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/nginx/sbin
|
||||
EXPOSE 80
|
||||
RUN rm -rf /usr/local/nginx/conf/nginx.conf
|
||||
COPY nginx.conf /usr/local/nginx/conf/
|
||||
RUN mkdir /dist
|
||||
CMD ["nginx", "-g", "daemon off;"]
|
||||
[root@nfs-harbor nginx]# docker build -t nginx:v2 .
|
||||
```
|
||||
|
||||
注意：
|
||||
|
||||
需要事先准备好Centos的Base仓库和epel仓库
|
||||
|
||||
#### 2.上传项目到harbor
|
||||
|
||||
修改镜像tag：
|
||||
|
||||
```shell
|
||||
[root@nfs-harbor ~]# docker tag nginx:v2 10.0.0.230/xingdian/nginx:v2
|
||||
```
|
||||
|
||||
登录私有仓库：
|
||||
|
||||
```shell
|
||||
[root@nfs-harbor ~]# docker login 10.0.0.230
|
||||
Username: xingdian
|
||||
Password:
|
||||
```
|
||||
|
||||
上传镜像：
|
||||
|
||||
```shell
|
||||
[root@nfs-harbor ~]# docker push 10.0.0.230/xingdian/nginx:v2
|
||||
```
|
||||
|
||||
注意：
|
||||
|
||||
默认上传时采用https，因为我们部署的harbor使用的是http，所以再上传之前按照3-1进行修改
|
||||
|
||||
#### 3.kubernetes集群连接harbor
|
||||
|
||||
修改所有kubernetes集群能够访问http仓库，默认访问的是https
|
||||
|
||||
```shell
|
||||
[root@master ~]# vim /etc/systemd/system/multi-user.target.wants/docker.service
|
||||
ExecStart=/usr/bin/dockerd -H fd:// --insecure-registry 10.0.1.13 --containerd=/run/containerd/containerd.sock
|
||||
[root@master ~]# systemctl daemon-reload
|
||||
[root@master ~]# systemctl restart docker
|
||||
```
|
||||
|
||||
kubernetes集群创建secret用于连接harbor
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl create secret docker-registry regcred --docker-server=10.0.0.230 --docker-username=diange --docker-password=QianFeng@123
|
||||
[root@master ~]# kubectl get secret
|
||||
NAME TYPE DATA AGE
|
||||
regcred kubernetes.io/dockerconfigjson 1 19h
|
||||
```
|
||||
|
||||
注意：
|
||||
|
||||
regcred：secret的名字
|
||||
|
||||
--docker-server：指定服务器的地址
|
||||
|
||||
--docker-username：指定harbor的用户
|
||||
|
||||
--docker-password：指定harbor的密码
|
||||
|
||||
#### 4.部署NFS
|
||||
|
||||
部署NFS目的是为了给kubernetes集群提供持久化存储,kubernetes集群也要安装nfs-utils目的是为了支持nfs文件系统
|
||||
|
||||
```shell
|
||||
[root@nfs-harbor ~]# yum -y install nfs-utils
|
||||
[root@nfs-harbor ~]# systemctl start nfs
|
||||
[root@nfs-harbor ~]# systemctl enable nfs
|
||||
```
|
||||
|
||||
创建共享目录并对外共享
|
||||
|
||||
```shell
|
||||
[root@nfs-harbor ~]# mkdir /kubernetes-1
|
||||
[root@nfs-harbor ~]# cat /etc/exports
|
||||
/kubernetes-1 *(rw,no_root_squash,sync)
|
||||
[root@nfs-harbor ~]# exportfs -rv
|
||||
```
|
||||
|
||||
项目放入共享目录下
|
||||
|
||||
```shell
|
||||
[root@nfs-harbor ~]# git clone https://github.com/blackmed/xingdian-project.git
|
||||
[root@nfs-harbor ~]# unzip dist.zip
|
||||
[root@nfs-harbor ~]# cp -r dist/* /kubernetes-1
|
||||
```
|
||||
|
||||
#### 5.创建statefulset部署项目
|
||||
|
||||
该yaml文件中除了statefulset以外还有service、PersistentVolume、StorageClass
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# cat Statefulset.yaml
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
name: nginx
|
||||
labels:
|
||||
app: nginx
|
||||
spec:
|
||||
type: NodePort
|
||||
ports:
|
||||
- port: 80
|
||||
name: web
|
||||
targetPort: 80
|
||||
nodePort: 30010
|
||||
selector:
|
||||
app: nginx
|
||||
---
|
||||
apiVersion: storage.k8s.io/v1
|
||||
kind: StorageClass
|
||||
metadata:
|
||||
name: xingdian
|
||||
provisioner: example.com/external-nfs
|
||||
parameters:
|
||||
server: 10.0.0.230
|
||||
path: /kubernetes-1
|
||||
readOnly: "false"
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: PersistentVolume
|
||||
metadata:
|
||||
name: xingdian-1
|
||||
spec:
|
||||
capacity:
|
||||
storage: 1Gi
|
||||
volumeMode: Filesystem
|
||||
accessModes:
|
||||
- ReadWriteOnce
|
||||
storageClassName: xingdian
|
||||
nfs:
|
||||
path: /kubernetes-1
|
||||
server: 10.0.0.230
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: PersistentVolume
|
||||
metadata:
|
||||
name: xingdian-2
|
||||
spec:
|
||||
capacity:
|
||||
storage: 1Gi
|
||||
volumeMode: Filesystem
|
||||
accessModes:
|
||||
- ReadWriteOnce
|
||||
storageClassName: xingdian
|
||||
nfs:
|
||||
path: /kubernetes-1
|
||||
server: 10.0.0.230
|
||||
---
|
||||
apiVersion: apps/v1
|
||||
kind: StatefulSet
|
||||
metadata:
|
||||
name: web
|
||||
spec:
|
||||
selector:
|
||||
matchLabels:
|
||||
app: nginx
|
||||
serviceName: "nginx"
|
||||
replicas: 2
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app: nginx
|
||||
spec:
|
||||
terminationGracePeriodSeconds: 10
|
||||
containers:
|
||||
- name: nginx
|
||||
image: 10.0.0.230/xingdian/nginx:v2
|
||||
ports:
|
||||
- containerPort: 80
|
||||
name: web
|
||||
volumeMounts:
|
||||
- name: www
|
||||
mountPath: /dist
|
||||
volumeClaimTemplates:
|
||||
- metadata:
|
||||
name: www
|
||||
spec:
|
||||
accessModes: [ "ReadWriteOnce" ]
|
||||
storageClassName: "xingdian"
|
||||
resources:
|
||||
requests:
|
||||
storage: 1Gi
|
||||
```
|
||||
|
||||
#### 6.运行
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# kubectl create -f Statefulset.yaml
|
||||
service/nginx created
|
||||
storageclass.storage.k8s.io/xingdian created
|
||||
persistentvolume/xingdian-1 created
|
||||
persistentvolume/xingdian-2 created
|
||||
statefulset.apps/web created
|
||||
```
|
||||
|
||||
## 三：项目验证
|
||||
|
||||
#### 1.pv验证
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# kubectl get pv
|
||||
NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
|
||||
xingdian-1 1Gi RWO Retain Bound default/www-web-1 xingdian 9m59s
|
||||
xingdian-2 1Gi RWO Retain Bound default/www-web-0 xingdian 9m59s
|
||||
```
|
||||
|
||||
#### 2.pvc验证
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# kubectl get pvc
|
||||
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
|
||||
www-web-0 Bound xingdian-2 1Gi RWO xingdian 10m
|
||||
www-web-1 Bound xingdian-1 1Gi RWO xingdian 10m
|
||||
```
|
||||
|
||||
#### 3.storageClass验证
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# kubectl get storageclass
|
||||
NAME PROVISIONER RECLAIMPOLICY VOLUMEBINDINGMODE ALLOWVOLUMEEXPANSION AGE
|
||||
xingdian example.com/external-nfs Delete Immediate false 10m
|
||||
```
|
||||
|
||||
#### 4.statefulset验证
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# kubectl get statefulset
|
||||
NAME READY AGE
|
||||
web 2/2 13m
|
||||
[root@master xingdian]# kubectl get pod
|
||||
NAME READY STATUS RESTARTS AGE
|
||||
web-0 1/1 Running 0 13m
|
||||
web-1 1/1 Running 0 13m
|
||||
```
|
||||
|
||||
#### 5.service验证
|
||||
|
||||
```shell
|
||||
[root@master xingdian]# kubectl get svc
|
||||
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
|
||||
nginx NodePort 10.111.189.32 <none> 80:30010/TCP 13m
|
||||
```
|
||||
|
||||
#### 6.浏览器访问
|
||||
|
||||
<img src="https://xingdian-image.oss-cn-beijing.aliyuncs.com/xingdian-image/image-20220502193031689.png" alt="image-20220502193031689" style="zoom:80%;" />
|
||||
|
|
@ -0,0 +1,314 @@
|
|||
<h1><center>基于Kubernetes集群构建ES集群</center></h1>
|
||||
|
||||
作者：行癫（盗版必究）
|
||||
|
||||
------
|
||||
|
||||
## 一：环境准备
|
||||
|
||||
#### 1.Kubernetes集群环境
|
||||
|
||||
| 节点 | 地址 |
|
||||
| :---------------: | :---------: |
|
||||
| Kubernetes-Master | 10.9.12.206 |
|
||||
| Kubernetes-Node-1 | 10.9.12.205 |
|
||||
| Kubernetes-Node-2 | 10.9.12.204 |
|
||||
| Kubernetes-Node-3 | 10.9.12.203 |
|
||||
| DNS服务器 | 10.9.12.210 |
|
||||
| 代理服务器 | 10.9.12.209 |
|
||||
| NFS存储 | 10.9.12.250 |
|
||||
|
||||
#### 2.Kuboard集群管理
|
||||
|
||||
|
||||
|
||||
## 二：构建ES集群
|
||||
|
||||
#### 1.持久化存储构建
|
||||
|
||||
1.NFS服务器部署
|
||||
|
||||
略
|
||||
|
||||
2.创建共享目录
|
||||
|
||||
本次采用脚本创建，脚本如下
|
||||
|
||||
```shell
|
||||
[root@xingdiancloud-1 ~]# cat nfs.sh
|
||||
#!/bin/bash
|
||||
read -p "请输入您要创建的共享目录：" dir
|
||||
if [ -d $dir ];then
|
||||
echo "请重新输入共享目录: "
|
||||
read again_dir
|
||||
mkdir $again_dir -p
|
||||
echo "共享目录创建成功"
|
||||
read -p "请输入共享对象：" ips
|
||||
echo "$again_dir ${ips}(rw,sync,no_root_squash)" >> /etc/exports
|
||||
xingdian=`cat /etc/exports |grep "$again_dir" |wc -l`
|
||||
if [ $xingdian -eq 1 ];then
|
||||
echo "成功配置共享"
|
||||
exportfs -rv >/dev/null
|
||||
exit
|
||||
else
|
||||
exit
|
||||
fi
|
||||
else
|
||||
mkdir $dir -p
|
||||
echo "共享目录创建成功"
|
||||
read -p "请输入共享对象：" ips
|
||||
echo "$dir ${ips}(rw,sync,no_root_squash)" >> /etc/exports
|
||||
xingdian=`cat /etc/exports |grep "$dir" |wc -l`
|
||||
if [ $xingdian -eq 1 ];then
|
||||
echo "成功配置共享"
|
||||
exportfs -rv >/dev/null
|
||||
exit
|
||||
else
|
||||
exit
|
||||
fi
|
||||
fi
|
||||
```
|
||||
|
||||
3.创建存储类
|
||||
|
||||
```yaml
|
||||
[root@xingdiancloud-master ~]# vim namespace.yaml
|
||||
apiVersion: v1
|
||||
kind: Namespace
|
||||
metadata:
|
||||
name: logging
|
||||
[root@xingdiancloud-master ~]# vim storageclass.yaml
|
||||
apiVersion: storage.k8s.io/v1
|
||||
kind: StorageClass
|
||||
metadata:
|
||||
annotations:
|
||||
k8s.kuboard.cn/storageNamespace: logging
|
||||
k8s.kuboard.cn/storageType: nfs_client_provisioner
|
||||
name: data-es
|
||||
parameters:
|
||||
archiveOnDelete: 'false'
|
||||
provisioner: nfs-data-es
|
||||
reclaimPolicy: Retain
|
||||
volumeBindingMode: Immediate
|
||||
```
|
||||
|
||||
4.创建存储卷
|
||||
|
||||
```yaml
|
||||
[root@xingdiancloud-master ~]# vim persistenVolume.yaml
|
||||
apiVersion: v1
|
||||
kind: PersistentVolume
|
||||
metadata:
|
||||
annotations:
|
||||
pv.kubernetes.io/bound-by-controller: 'yes'
|
||||
finalizers:
|
||||
- kubernetes.io/pv-protection
|
||||
name: nfs-pv-data-es
|
||||
spec:
|
||||
accessModes:
|
||||
- ReadWriteMany
|
||||
capacity:
|
||||
storage: 100Gi
|
||||
claimRef:
|
||||
apiVersion: v1
|
||||
kind: PersistentVolumeClaim
|
||||
name: nfs-pvc-data-es
|
||||
namespace: kube-system
|
||||
nfs:
|
||||
path: /data/es-data
|
||||
server: 10.9.12.250
|
||||
persistentVolumeReclaimPolicy: Retain
|
||||
storageClassName: nfs-storageclass-provisioner
|
||||
volumeMode: Filesystem
|
||||
```
|
||||
|
||||
注意：存储类和存储卷也可以使用Kuboard界面创建
|
||||
|
||||
#### 2.设定节点标签
|
||||
|
||||
```shell
|
||||
[root@xingdiancloud-master ~]# kubectl label nodes xingdiancloud-node-1 es=log
|
||||
```
|
||||
|
||||
注意：
|
||||
|
||||
所有运行ES的节点需要进行标签的设定
|
||||
|
||||
目的配合接下来的StatefulSet部署ES集群
|
||||
|
||||
#### 3.ES集群部署
|
||||
|
||||
注意：由于ES集群每个节点需要唯一的网络标识，并需要持久化存储，Deployment不能实现该特点只能进行无状态应用的部署，故本次将采用StatefulSet进行部署。
|
||||
|
||||
```yaml
|
||||
apiVersion: apps/v1
|
||||
kind: StatefulSet
|
||||
metadata:
|
||||
name: es
|
||||
namespace: logging
|
||||
spec:
|
||||
serviceName: elasticsearch
|
||||
replicas: 3
|
||||
selector:
|
||||
matchLabels:
|
||||
app: elasticsearch
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app: elasticsearch
|
||||
spec:
|
||||
nodeSelector:
|
||||
es: log
|
||||
initContainers:
|
||||
- name: increase-vm-max-map
|
||||
image: busybox
|
||||
command: ["sysctl", "-w", "vm.max_map_count=262144"]
|
||||
securityContext:
|
||||
privileged: true
|
||||
- name: increase-fd-ulimit
|
||||
image: busybox
|
||||
command: ["sh", "-c", "ulimit -n 65536"]
|
||||
securityContext:
|
||||
privileged: true
|
||||
containers:
|
||||
- name: elasticsearch
|
||||
image: docker.elastic.co/elasticsearch/elasticsearch:7.6.2
|
||||
ports:
|
||||
- name: rest
|
||||
containerPort: 9200
|
||||
- name: inter
|
||||
containerPort: 9300
|
||||
resources:
|
||||
limits:
|
||||
cpu: 500m
|
||||
memory: 4000Mi
|
||||
requests:
|
||||
cpu: 500m
|
||||
memory: 3000Mi
|
||||
volumeMounts:
|
||||
- name: data
|
||||
mountPath: /usr/share/elasticsearch/data
|
||||
env:
|
||||
- name: cluster.name
|
||||
value: k8s-logs
|
||||
- name: node.name
|
||||
valueFrom:
|
||||
fieldRef:
|
||||
fieldPath: metadata.name
|
||||
- name: cluster.initial_master_nodes
|
||||
value: "es-0,es-1,es-2"
|
||||
- name: discovery.zen.minimum_master_nodes
|
||||
value: "2"
|
||||
- name: discovery.seed_hosts
|
||||
value: "elasticsearch"
|
||||
- name: ESJAVAOPTS
|
||||
value: "-Xms512m -Xmx512m"
|
||||
- name: network.host
|
||||
value: "0.0.0.0"
|
||||
- name: node.max_local_storage_nodes
|
||||
value: "3"
|
||||
volumeClaimTemplates:
|
||||
- metadata:
|
||||
name: data
|
||||
labels:
|
||||
app: elasticsearch
|
||||
spec:
|
||||
accessModes: [ "ReadWriteMany" ]
|
||||
storageClassName: data-es
|
||||
resources:
|
||||
requests:
|
||||
storage: 25Gi
|
||||
```
|
||||
|
||||
#### 4.创建Services发布ES集群
|
||||
|
||||
```yaml
|
||||
[root@xingdiancloud-master ~]# vim elasticsearch-svc.yaml
|
||||
kind: Service
|
||||
apiVersion: v1
|
||||
metadata:
|
||||
name: elasticsearch
|
||||
namespace: logging
|
||||
labels:
|
||||
app: elasticsearch
|
||||
spec:
|
||||
selector:
|
||||
app: elasticsearch
|
||||
type: NodePort
|
||||
ports:
|
||||
- port: 9200
|
||||
targetPort: 9200
|
||||
nodePort: 30010
|
||||
name: rest
|
||||
- port: 9300
|
||||
name: inter-node
|
||||
```
|
||||
|
||||
#### 5.访问测试
|
||||
|
||||
注意：
|
||||
|
||||
使用elasticVUE插件访问集群
|
||||
|
||||
集群状态正常
|
||||
|
||||
集群所有节点正常
|
||||
|
||||
|
||||
|
||||
## 三：代理及DNS配置
|
||||
|
||||
#### 1.代理配置
|
||||
|
||||
注意：
|
||||
|
||||
部署略
|
||||
|
||||
在此使用Nginx作为代理
|
||||
|
||||
基于用户的访问控制用户和密码自行创建（htpasswd）
|
||||
|
||||
配置文件如下
|
||||
|
||||
```shell
|
||||
[root@proxy ~]# cat /etc/nginx/conf.d/elasticsearch.conf
|
||||
server {
|
||||
listen 80;
|
||||
server_name es.xingdian.com;
|
||||
location / {
|
||||
auth_basic "xingdiancloud kibana";
|
||||
auth_basic_user_file /etc/nginx/pass;
|
||||
proxy_pass http://地址+端口;
|
||||
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
```
|
||||
|
||||
#### 2.域名解析配置
|
||||
|
||||
注意：
|
||||
|
||||
部署略
|
||||
|
||||
配置如下
|
||||
|
||||
```shell
|
||||
[root@www ~]# cat /var/named/xingdian.com.zone
|
||||
$TTL 1D
|
||||
@ IN SOA @ rname.invalid. (
|
||||
0 ; serial
|
||||
1D ; refresh
|
||||
1H ; retry
|
||||
1W ; expire
|
||||
3H ) ; minimum
|
||||
NS @
|
||||
A DNS地址
|
||||
es A 代理地址
|
||||
AAAA ::1
|
||||
```
|
||||
|
||||
#### 3.访问测试
|
||||
|
||||
略
|
||||
|
|
@ -0,0 +1,684 @@
|
|||
<h1><center>基于kubernetes部署Prometheus和Grafana</center></h1>
|
||||
|
||||
著作：行癫 <盗版必究>
|
||||
|
||||
------
|
||||
|
||||
## 一：环境准备
|
||||
|
||||
#### 1.kubernetes集群正常
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl get node
|
||||
NAME STATUS ROLES AGE VERSION
|
||||
master Ready control-plane,master 36d v1.23.1
|
||||
node-1 Ready <none> 36d v1.23.1
|
||||
node-2 Ready <none> 36d v1.23.1
|
||||
node-3 Ready <none> 36d v1.23.1
|
||||
```
|
||||
|
||||
#### 2.harbor仓库正常
|
||||
|
||||
|
||||
|
||||
## 二：Prometheus部署
|
||||
|
||||
#### 1.node-exporter部署
|
||||
|
||||
node-exporter可以采集机器（物理机、虚拟机、云主机等）的监控指标数据，能够采集到的指标包括CPU, 内存，磁盘，网络，文件数等信息
|
||||
|
||||
创建监控namespace：
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl create ns monitor-sa
|
||||
```
|
||||
|
||||
创建node-export.yaml：
|
||||
|
||||
```shell
|
||||
[root@master ~]# vim node-export.yaml
|
||||
apiVersion: apps/v1
|
||||
kind: DaemonSet # 可以保证k8s集群的每个节点都运行完全一样的pod
|
||||
metadata:
|
||||
name: node-exporter
|
||||
namespace: monitor-sa
|
||||
labels:
|
||||
name: node-exporter
|
||||
spec:
|
||||
selector:
|
||||
matchLabels:
|
||||
name: node-exporter
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
name: node-exporter
|
||||
spec:
|
||||
hostPID: true
|
||||
hostIPC: true
|
||||
hostNetwork: true
|
||||
containers:
|
||||
- name: node-exporter
|
||||
image: prom/node-exporter:v0.16.0
|
||||
#image: 10.0.0.230/xingdian/node-exporter:v0.16.0
|
||||
ports:
|
||||
- containerPort: 9100
|
||||
resources:
|
||||
requests:
|
||||
cpu: 0.15 # 这个容器运行至少需要0.15核cpu
|
||||
securityContext:
|
||||
privileged: true # 开启特权模式
|
||||
args:
|
||||
- --path.procfs
|
||||
- /host/proc
|
||||
- --path.sysfs
|
||||
- /host/sys
|
||||
- --collector.filesystem.ignored-mount-points
|
||||
- '"^/(sys|proc|dev|host|etc)($|/)"'
|
||||
volumeMounts:
|
||||
- name: dev
|
||||
mountPath: /host/dev
|
||||
- name: proc
|
||||
mountPath: /host/proc
|
||||
- name: sys
|
||||
mountPath: /host/sys
|
||||
- name: rootfs
|
||||
mountPath: /rootfs
|
||||
tolerations:
|
||||
- key: "node-role.kubernetes.io/master"
|
||||
operator: "Exists"
|
||||
effect: "NoSchedule"
|
||||
volumes:
|
||||
- name: proc
|
||||
hostPath:
|
||||
path: /proc
|
||||
- name: dev
|
||||
hostPath:
|
||||
path: /dev
|
||||
- name: sys
|
||||
hostPath:
|
||||
path: /sys
|
||||
- name: rootfs
|
||||
hostPath:
|
||||
path: /
|
||||
```
|
||||
|
||||
注意：
|
||||
|
||||
hostNetwork、hostIPC、hostPID都为True时，表示这个Pod里的所有容器，会直接使用宿主机的网络，直接与宿主机进行IPC（进程间通信）通信，可以看到宿主机里正在运行的所有进程。加入了hostNetwork:true会直接将我们的宿主机的9100端口映射出来，从而不需要创建service 在我们的宿主机上就会有一个9100的端口
|
||||
|
||||
创建：
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl apply -f node-export.yaml
|
||||
```
|
||||
|
||||
查看node-exporter是否部署成功：
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl get pods -n monitor-sa -o wide
|
||||
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
|
||||
node-exporter-2cbrg 1/1 Running 0 34m 10.0.0.220 master <none> <none>
|
||||
node-exporter-7rrbh 1/1 Running 0 34m 10.0.0.222 node-2 <none> <none>
|
||||
node-exporter-96v29 1/1 Running 0 34m 10.0.0.221 node-1 <none> <none>
|
||||
node-exporter-bf2j8 1/1 Running 0 34m 10.0.0.223 node-3 <none> <none>
|
||||
```
|
||||
|
||||
注意：
|
||||
|
||||
node-export默认的监听端口是9100，可以看到当前主机获取到的所有监控数据
|
||||
|
||||
```shell
|
||||
[root@master ~]# curl http://10.0.0.220:9100/metrics | grep node_cpu_seconds
|
||||
% Total % Received % Xferd Average Speed Time Time Time Current
|
||||
Dload Upload Total Spent Left Speed
|
||||
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0# HELP node_cpu_seconds_total Seconds the cpus spent in each mode.
|
||||
# TYPE node_cpu_seconds_total counter
|
||||
node_cpu_seconds_total{cpu="0",mode="idle"} 8398.49
|
||||
node_cpu_seconds_total{cpu="0",mode="iowait"} 1.54
|
||||
node_cpu_seconds_total{cpu="0",mode="irq"} 0
|
||||
node_cpu_seconds_total{cpu="0",mode="nice"} 0
|
||||
node_cpu_seconds_total{cpu="0",mode="softirq"} 17.2
|
||||
node_cpu_seconds_total{cpu="0",mode="steal"} 0
|
||||
node_cpu_seconds_total{cpu="0",mode="system"} 70.61
|
||||
node_cpu_seconds_total{cpu="0",mode="user"} 187.04
|
||||
node_cpu_seconds_total{cpu="1",mode="idle"} 8403.82
|
||||
node_cpu_seconds_total{cpu="1",mode="iowait"} 4.95
|
||||
node_cpu_seconds_total{cpu="1",mode="irq"} 0
|
||||
node_cpu_seconds_total{cpu="1",mode="nice"} 0
|
||||
node_cpu_seconds_total{cpu="1",mode="softirq"} 16.75
|
||||
node_cpu_seconds_total{cpu="1",mode="steal"} 0
|
||||
node_cpu_seconds_total{cpu="1",mode="system"} 71.26
|
||||
node_cpu_seconds_total{cpu="1",mode="user"} 190.27
|
||||
100 74016 100 74016 0 0 5878k 0 --:--:-- --:--:-- --:--:-- 6023k
|
||||
|
||||
[root@master ~]# curl http://10.0.0.220:9100/metrics | grep node_load
|
||||
% Total % Received % Xferd Average Speed Time Time Time Current
|
||||
Dload Upload Total Spent Left Speed
|
||||
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0# HELP node_loa
|
||||
1 1m load average.
|
||||
# TYPE node_load1 gauge
|
||||
node_load1 0.2
|
||||
# HELP node_load15 15m load average.
|
||||
# TYPE node_load15 gauge
|
||||
node_load15 0.22
|
||||
# HELP node_load5 5m load average.
|
||||
# TYPE node_load5 gauge
|
||||
node_load5 0.2
|
||||
100 74044 100 74044 0 0 8604k 0 --:--:-- --:--:-- --:--:-- 9038k
|
||||
```
|
||||
|
||||
#### 2.Prometheus安装
|
||||
|
||||
创建sa账号，对sa做rbac授权：
|
||||
|
||||
```shell
|
||||
# 创建一个sa账号monitor
|
||||
[root@master ~]# kubectl create serviceaccount monitor -n monitor-sa
|
||||
|
||||
# 把sa账号monitor通过clusterrolebing绑定到clusterrole上
|
||||
[root@master ~]# kubectl create clusterrolebinding monitor-clusterrolebinding -n monitor-sa --clusterrole=cluster-admin --serviceaccount=monitor-sa:monitor
|
||||
```
|
||||
|
||||
创建prometheus数据存储目录：
|
||||
|
||||
```shell
|
||||
# 将prometheus调度到node-1节点
|
||||
[root@node-1 ~]# mkdir /data && chmod 777 /data
|
||||
```
|
||||
|
||||
创建一个configmap存储卷，用来存放prometheus配置信息：
|
||||
|
||||
```shell
|
||||
[root@master ~]# vim prometheus-cfg.yaml
|
||||
---
|
||||
kind: ConfigMap
|
||||
apiVersion: v1
|
||||
metadata:
|
||||
labels:
|
||||
app: prometheus
|
||||
name: prometheus-config
|
||||
namespace: monitor-sa
|
||||
data:
|
||||
prometheus.yml: |
|
||||
global:
|
||||
scrape_interval: 15s
|
||||
scrape_timeout: 10s
|
||||
evaluation_interval: 1m
|
||||
scrape_configs:
|
||||
- job_name: 'kubernetes-node'
|
||||
kubernetes_sd_configs:
|
||||
- role: node
|
||||
relabel_configs:
|
||||
- source_labels: [__address__]
|
||||
regex: '(.*):10250'
|
||||
replacement: '${1}:9100'
|
||||
target_label: __address__
|
||||
action: replace
|
||||
- action: labelmap
|
||||
regex: __meta_kubernetes_node_label_(.+)
|
||||
- job_name: 'kubernetes-node-cadvisor'
|
||||
kubernetes_sd_configs:
|
||||
- role: node
|
||||
scheme: https
|
||||
tls_config:
|
||||
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
|
||||
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
|
||||
relabel_configs:
|
||||
- action: labelmap
|
||||
regex: __meta_kubernetes_node_label_(.+)
|
||||
- target_label: __address__
|
||||
replacement: kubernetes.default.svc:443
|
||||
- source_labels: [__meta_kubernetes_node_name]
|
||||
regex: (.+)
|
||||
target_label: __metrics_path__
|
||||
replacement: /api/v1/nodes/${1}/proxy/metrics/cadvisor
|
||||
- job_name: 'kubernetes-apiserver'
|
||||
kubernetes_sd_configs:
|
||||
- role: endpoints
|
||||
scheme: https
|
||||
tls_config:
|
||||
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
|
||||
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
|
||||
relabel_configs:
|
||||
- source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
|
||||
action: keep
|
||||
regex: default;kubernetes;https
|
||||
- job_name: 'kubernetes-service-endpoints'
|
||||
kubernetes_sd_configs:
|
||||
- role: endpoints
|
||||
relabel_configs:
|
||||
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape]
|
||||
action: keep
|
||||
regex: true
|
||||
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scheme]
|
||||
action: replace
|
||||
target_label: __scheme__
|
||||
regex: (https?)
|
||||
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path]
|
||||
action: replace
|
||||
target_label: __metrics_path__
|
||||
regex: (.+)
|
||||
- source_labels: [__address__, __meta_kubernetes_service_annotation_prometheus_io_port]
|
||||
action: replace
|
||||
target_label: __address__
|
||||
regex: ([^:]+)(?::\d+)?;(\d+)
|
||||
replacement: $1:$2
|
||||
- action: labelmap
|
||||
regex: __meta_kubernetes_service_label_(.+)
|
||||
- source_labels: [__meta_kubernetes_namespace]
|
||||
action: replace
|
||||
target_label: kubernetes_namespace
|
||||
- source_labels: [__meta_kubernetes_service_name]
|
||||
action: replace
|
||||
target_label: kubernetes_name
|
||||
```
|
||||
|
||||
创建：
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl apply -f prometheus-cfg.yaml
|
||||
configmap/prometheus-config created
|
||||
```
|
||||
|
||||
配置详解：
|
||||
|
||||
```shell
|
||||
---
|
||||
kind: ConfigMap
|
||||
apiVersion: v1
|
||||
metadata:
|
||||
labels:
|
||||
app: prometheus
|
||||
name: prometheus-config
|
||||
namespace: monitor-sa
|
||||
data:
|
||||
prometheus.yml: |
|
||||
global:
|
||||
scrape_interval: 15s #采集目标主机监控据的时间间隔
|
||||
scrape_timeout: 10s # 数据采集超时时间，默认10s
|
||||
evaluation_interval: 1m #触发告警检测的时间，默认是1m
|
||||
scrape_configs: # 配置数据源，称为target，每个target用job_name命名。又分为静态配置和服务发现
|
||||
- job_name: 'kubernetes-node'
|
||||
kubernetes_sd_configs: # 使用的是k8s的服务发现
|
||||
- role: node # 使用node角色，它使用默认的kubelet提供的http端口来发现集群中每个node节点
|
||||
relabel_configs: # 重新标记
|
||||
- source_labels: [__address__] # 配置的原始标签，匹配地址
|
||||
regex: '(.*):10250' #匹配带有10250端口的url
|
||||
replacement: '${1}:9100' #把匹配到的ip:10250的ip保留
|
||||
target_label: __address__ #新生成的url是${1}获取到的ip:9100
|
||||
action: replace # 动作替换
|
||||
- action: labelmap
|
||||
regex: __meta_kubernetes_node_label_(.+) #匹配到下面正则表达式的标签会被保留,如果不做regex正则的话，默认只是会显示instance标签
|
||||
- job_name: 'kubernetes-node-cadvisor' # 抓取cAdvisor数据，是获取kubelet上/metrics/cadvisor接口数据来获取容器的资源使用情况
|
||||
kubernetes_sd_configs:
|
||||
- role: node
|
||||
scheme: https
|
||||
tls_config:
|
||||
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
|
||||
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
|
||||
relabel_configs:
|
||||
- action: labelmap # 把匹配到的标签保留
|
||||
regex: __meta_kubernetes_node_label_(.+) #保留匹配到的具有__meta_kubernetes_node_label的标签
|
||||
- target_label: __address__ # 获取到的地址：__address__="192.168.40.180:10250"
|
||||
replacement: kubernetes.default.svc:443 # 把获取到的地址替换成新的地址kubernetes.default.svc:443
|
||||
- source_labels: [__meta_kubernetes_node_name]
|
||||
regex: (.+) # 把原始标签中__meta_kubernetes_node_name值匹配到
|
||||
target_label: __metrics_path__ #获取__metrics_path__对应的值
|
||||
replacement: /api/v1/nodes/${1}/proxy/metrics/cadvisor
|
||||
# 把metrics替换成新的值api/v1/nodes/k8s-master1/proxy/metrics/cadvisor
|
||||
# ${1}是__meta_kubernetes_node_name获取到的值
|
||||
# 新的url就是https://kubernetes.default.svc:443/api/v1/nodes/k8s-master1/proxy/metrics/cadvisor
|
||||
- job_name: 'kubernetes-apiserver'
|
||||
kubernetes_sd_configs:
|
||||
- role: endpoints # 使用k8s中的endpoint服务发现，采集apiserver 6443端口获取到的数据
|
||||
scheme: https
|
||||
tls_config:
|
||||
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
|
||||
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
|
||||
relabel_configs:
|
||||
- source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
|
||||
# endpoint这个对象的名称空间,endpoint对象的服务名,exnpoint的端口名称
|
||||
action: keep # 采集满足条件的实例，其他实例不采集
|
||||
regex: default;kubernetes;https #正则匹配到的默认空间下的service名字是kubernetes，协议是https的endpoint类型保留下来
|
||||
- job_name: 'kubernetes-service-endpoints'
|
||||
kubernetes_sd_configs:
|
||||
- role: endpoints
|
||||
relabel_configs:
|
||||
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape]
|
||||
action: keep
|
||||
regex: true
|
||||
# 重新打标仅抓取到的具有 "prometheus.io/scrape: true" 的annotation的端点，意思是说如果某个service具有prometheus.io/scrape = true annotation声明则抓取，annotation本身也是键值结构，所以这里的源标签设置为键，而regex设置值true，当值匹配到regex设定的内容时则执行keep动作也就是保留，其余则丢弃。
|
||||
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scheme]
|
||||
action: replace
|
||||
target_label: __scheme__
|
||||
regex: (https?)
|
||||
# 重新设置scheme，匹配源标签__meta_kubernetes_service_annotation_prometheus_io_scheme也就是prometheus.io/scheme annotation，如果源标签的值匹配到regex，则把值替换为__scheme__对应的值。
|
||||
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path]
|
||||
action: replace
|
||||
target_label: __metrics_path__
|
||||
regex: (.+)
|
||||
# 应用中自定义暴露的指标，也许你暴露的API接口不是/metrics这个路径，那么你可以在这个POD对应的service中做一个"prometheus.io/path = /mymetrics" 声明，上面的意思就是把你声明的这个路径赋值给__metrics_path__，其实就是让prometheus来获取自定义应用暴露的metrices的具体路径，不过这里写的要和service中做好约定，如果service中这样写 prometheus.io/app-metrics-path: '/metrics' 那么你这里就要__meta_kubernetes_service_annotation_prometheus_io_app_metrics_path这样写。
|
||||
- source_labels: [__address__, __meta_kubernetes_service_annotation_prometheus_io_port]
|
||||
action: replace
|
||||
target_label: __address__
|
||||
regex: ([^:]+)(?::\d+)?;(\d+)
|
||||
replacement: $1:$2
|
||||
# 暴露自定义的应用的端口，就是把地址和你在service中定义的 "prometheus.io/port = <port>" 声明做一个拼接，然后赋值给__address__，这样prometheus就能获取自定义应用的端口，然后通过这个端口再结合__metrics_path__来获取指标，如果__metrics_path__值不是默认的/metrics那么就要使用上面的标签替换来获取真正暴露的具体路径。
|
||||
- action: labelmap #保留下面匹配到的标签
|
||||
regex: __meta_kubernetes_service_label_(.+)
|
||||
- source_labels: [__meta_kubernetes_namespace]
|
||||
action: replace # 替换__meta_kubernetes_namespace变成kubernetes_namespace
|
||||
target_label: kubernetes_namespace
|
||||
- source_labels: [__meta_kubernetes_service_name]
|
||||
action: replace
|
||||
target_label: kubernetes_name
|
||||
```
|
||||
|
||||
通过deployment部署prometheus：
|
||||
|
||||
```shell
|
||||
[root@master ~]# cat prometheus-deploy.yaml
|
||||
---
|
||||
apiVersion: apps/v1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
name: prometheus-server
|
||||
namespace: monitor-sa
|
||||
labels:
|
||||
app: prometheus
|
||||
spec:
|
||||
replicas: 1
|
||||
selector:
|
||||
matchLabels:
|
||||
app: prometheus
|
||||
component: server
|
||||
#matchExpressions:
|
||||
#- {key: app, operator: In, values: [prometheus]}
|
||||
#- {key: component, operator: In, values: [server]}
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
app: prometheus
|
||||
component: server
|
||||
annotations:
|
||||
prometheus.io/scrape: 'false'
|
||||
spec:
|
||||
nodeName: node-1 # 指定pod调度到哪个节点上
|
||||
serviceAccountName: monitor
|
||||
containers:
|
||||
- name: prometheus
|
||||
image: prom/prometheus:v2.2.1
|
||||
#image: 10.0.0.230/xingdian/prometheus:v2.2.1
|
||||
imagePullPolicy: IfNotPresent
|
||||
command:
|
||||
- prometheus
|
||||
- --config.file=/etc/prometheus/prometheus.yml
|
||||
- --storage.tsdb.path=/prometheus # 数据存储目录
|
||||
- --storage.tsdb.retention=720h # 数据保存时长
|
||||
- --web.enable-lifecycle # 开启热加载
|
||||
ports:
|
||||
- containerPort: 9090
|
||||
protocol: TCP
|
||||
volumeMounts:
|
||||
- mountPath: /etc/prometheus/prometheus.yml
|
||||
name: prometheus-config
|
||||
subPath: prometheus.yml
|
||||
- mountPath: /prometheus/
|
||||
name: prometheus-storage-volume
|
||||
volumes:
|
||||
- name: prometheus-config
|
||||
configMap:
|
||||
name: prometheus-config
|
||||
items:
|
||||
- key: prometheus.yml
|
||||
path: prometheus.yml
|
||||
mode: 0644
|
||||
- name: prometheus-storage-volume
|
||||
hostPath:
|
||||
path: /data
|
||||
type: Directory
|
||||
```
|
||||
|
||||
创建：
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl apply -f prometheus-deploy.yaml
|
||||
deployment.apps/prometheus-server created
|
||||
```
|
||||
|
||||
查看：
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl get pods -o wide -n monitor-sa
|
||||
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
|
||||
prometheus-server-59cb5d648-bxwrb 1/1 Running 0 14m 10.244.2.100 node-1 <none> <none>
|
||||
```
|
||||
|
||||
#### 3.prometheus pod创建service
|
||||
|
||||
```shell
|
||||
[root@master ~]# cat prometheus-svc.yaml
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
name: prometheus
|
||||
namespace: monitor-sa
|
||||
labels:
|
||||
app: prometheus
|
||||
spec:
|
||||
type: NodePort
|
||||
ports:
|
||||
- port: 9090
|
||||
targetPort: 9090
|
||||
protocol: TCP
|
||||
selector:
|
||||
app: prometheus
|
||||
component: server
|
||||
```
|
||||
|
||||
创建：
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl apply -f prometheus-svc.yaml
|
||||
service/prometheus created
|
||||
```
|
||||
|
||||
查看service在物理机映射的端口：
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl get svc -n monitor-sa
|
||||
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
|
||||
prometheus NodePort 10.106.61.80 <none> 9090:32169/TCP 32m
|
||||
```
|
||||
|
||||
#### 4.web界面查看
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
#### 5.Prometheus热加载
|
||||
|
||||
```shell
|
||||
# 为了每次修改配置文件可以热加载prometheus，也就是不停止prometheus，就可以使配置生效，想要使配置生效可用如下热加载命令：
|
||||
[root@master ~]# kubectl get pods -n monitor-sa -o wide -l app=prometheus
|
||||
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
|
||||
prometheus-server-689fb8cdbc-kcsw2 1/1 Running 0 5m39s 10.244.36.70 k8s-node1 <none> <none>
|
||||
|
||||
# 想要使配置生效可用如下命令热加载：
|
||||
[root@master ~]# curl -X POST http://10.244.36.70:9090/-/reload
|
||||
|
||||
# 查看log
|
||||
[root@master ~]# kubectl logs -n monitor-sa prometheus-server-689fb8cdbc-kcsw2
|
||||
```
|
||||
|
||||
注意：
|
||||
|
||||
```shell
|
||||
# 热加载速度比较慢，可以暴力重启prometheus，如修改上面的prometheus-cfg.yaml文件之后，可执行如下强制删除：
|
||||
[root@master ~]# kubectl delete -f prometheus-cfg.yaml
|
||||
[root@master ~]# kubectl delete -f prometheus-deploy.yaml
|
||||
# 然后再通过apply更新：
|
||||
[root@master ~]# kubectl apply -f prometheus-cfg.yaml
|
||||
[root@master ~]# kubectl apply -f prometheus-deploy.yaml
|
||||
#注意：线上最好热加载，暴力删除可能造成监控数据的丢失
|
||||
```
|
||||
|
||||
## 三：Grafana的部署
|
||||
|
||||
#### 1.Grafana介绍
|
||||
|
||||
Grafana是一个跨平台的开源的度量分析和可视化工具，可以将采集的数据可视化的展示，并及时通知给告警接收方
|
||||
|
||||
它主要有以下六大特点：
|
||||
|
||||
1）展示方式：快速灵活的客户端图表，面板插件有许多不同方式的可视化指标和日志，官方库中具有丰富的仪表盘插件，比如热图、折线图、图表等多种展示方式
|
||||
|
||||
2）数据源：Graphite，InfluxDB，OpenTSDB，Prometheus，Elasticsearch，CloudWatch和KairosDB等
|
||||
|
||||
3）通知提醒：以可视方式定义最重要指标的警报规则，Grafana将不断计算并发送通知，在数据达到阈值时通过Slack、PagerDuty等获得通知
|
||||
|
||||
4）混合展示：在同一图表中混合使用不同的数据源，可以基于每个查询指定数据源，甚至自定义数据源
|
||||
|
||||
5）注释：使用来自不同数据源的丰富事件注释图表，将鼠标悬停在事件上会显示完整的事件元数据和标记
|
||||
|
||||
#### 2.Grafana安装
|
||||
|
||||
```shell
|
||||
[root@master prome]# cat grafana.yaml
|
||||
apiVersion: apps/v1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
name: monitoring-grafana
|
||||
namespace: kube-system
|
||||
spec:
|
||||
replicas: 1
|
||||
selector:
|
||||
matchLabels:
|
||||
task: monitoring
|
||||
k8s-app: grafana
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
task: monitoring
|
||||
k8s-app: grafana
|
||||
spec:
|
||||
containers:
|
||||
- name: grafana
|
||||
image: 10.0.0.230/xingdian/heapster-grafana-amd64:v5.0.4
|
||||
#heleicool/heapster-grafana-amd64:v5.0.4
|
||||
ports:
|
||||
- containerPort: 3000
|
||||
protocol: TCP
|
||||
volumeMounts:
|
||||
- mountPath: /etc/ssl/certs
|
||||
name: ca-certificates
|
||||
readOnly: true
|
||||
- mountPath: /var
|
||||
name: grafana-storage
|
||||
env:
|
||||
- name: INFLUXDB_HOST
|
||||
value: monitoring-influxdb
|
||||
- name: GF_SERVER_HTTP_PORT
|
||||
value: "3000"
|
||||
# The following env variables are required to make Grafana accessible via
|
||||
# the kubernetes api-server proxy. On production clusters, we recommend
|
||||
# removing these env variables, setup auth for grafana, and expose the grafana
|
||||
# service using a LoadBalancer or a public IP.
|
||||
- name: GF_AUTH_BASIC_ENABLED
|
||||
value: "false"
|
||||
- name: GF_AUTH_ANONYMOUS_ENABLED
|
||||
value: "true"
|
||||
- name: GF_AUTH_ANONYMOUS_ORG_ROLE
|
||||
value: Admin
|
||||
- name: GF_SERVER_ROOT_URL
|
||||
# If you're only using the API Server proxy, set this value instead:
|
||||
# value: /api/v1/namespaces/kube-system/services/monitoring-grafana/proxy
|
||||
value: /
|
||||
volumes:
|
||||
- name: ca-certificates
|
||||
hostPath:
|
||||
path: /etc/ssl/certs
|
||||
- name: grafana-storage
|
||||
emptyDir: {}
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
labels:
|
||||
# For use as a Cluster add-on (https://github.com/kubernetes/kubernetes/tree/master/cluster/addons)
|
||||
# If you are NOT using this as an addon, you should comment out this line.
|
||||
kubernetes.io/cluster-service: 'true'
|
||||
kubernetes.io/name: monitoring-grafana
|
||||
name: monitoring-grafana
|
||||
namespace: kube-system
|
||||
spec:
|
||||
# In a production setup, we recommend accessing Grafana through an external Loadbalancer
|
||||
# or through a public IP.
|
||||
# type: LoadBalancer
|
||||
# You could also use NodePort to expose the service at a randomly-generated port
|
||||
# type: NodePort
|
||||
ports:
|
||||
- port: 80
|
||||
targetPort: 3000
|
||||
selector:
|
||||
k8s-app: grafana
|
||||
type: NodePort
|
||||
```
|
||||
|
||||
创建：
|
||||
|
||||
```shell
|
||||
[root@master prome]# kubectl apply -f grafana.yaml
|
||||
deployment.apps/monitoring-grafana created
|
||||
service/monitoring-grafana created
|
||||
```
|
||||
|
||||
查看：
|
||||
|
||||
```shell
|
||||
[root@master prome]# kubectl get pods -n kube-system -l task=monitoring -o wide
|
||||
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
|
||||
monitoring-grafana-7c5c6c7486-rbt62 1/1 Running 0 9s 10.244.1.83 node-3 <none> <none>
|
||||
```
|
||||
|
||||
```shell
|
||||
[root@master prome]# kubectl get svc -n kube-system | grep grafana
|
||||
monitoring-grafana NodePort 10.101.77.194 <none> 80:30919/TCP 76s
|
||||
```
|
||||
|
||||
## 四：配置Grafana
|
||||
|
||||
浏览器访问：
|
||||
|
||||
|
||||
|
||||
添加数据源：
|
||||
|
||||
|
||||
|
||||
指定Prometheus地址：
|
||||
|
||||
|
||||
|
||||
导入监控模板：
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
注意：
|
||||
|
||||
官方下载监控模板：https://grafana.com/dashboards?dataSource=prometheus&search=kubernetes
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
展示：
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue