上传文件至 kubernetes-MD
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<h1><center>利用kubernetes部署网站项目</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
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集群正常运行，例如使用以下命令检查
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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 5d19h v1.23.1
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node-1 Ready <none> 5d19h v1.23.1
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node-2 Ready <none> 5d19h v1.23.1
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node-3 Ready <none> 5d19h v1.23.1
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```
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#### 2.harbor私有仓库
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主要给kubernetes集群提供镜像服务
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<img src="https://xingdian-image.oss-cn-beijing.aliyuncs.com/xingdian-image/image-20220502184026483.png" alt="image-20220502184026483" style="zoom:50%;" />
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## 二：项目部署
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#### 1.镜像构建
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软件下载地址：
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```shell
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wget https://nginx.org/download/nginx-1.20.2.tar.gz
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```
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项目包下载地址：
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```shell
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git clone https://github.com/blackmed/xingdian-project.git
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```
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构建centos基础镜像Dockerfile文件：
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```shell
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root@nfs-harbor ~]# cat Dockerfile
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FROM daocloud.io/centos:7
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MAINTAINER "xingdianvip@gmail.com"
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ENV container docker
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RUN yum -y swap -- remove fakesystemd -- install systemd systemd-libs
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RUN yum -y update; yum clean all; \
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(cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done); \
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rm -f /lib/systemd/system/multi-user.target.wants/*;\
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rm -f /etc/systemd/system/*.wants/*;\
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rm -f /lib/systemd/system/local-fs.target.wants/*; \
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rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
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rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
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rm -f /lib/systemd/system/basic.target.wants/*;\
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rm -f /lib/systemd/system/anaconda.target.wants/*;
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VOLUME [ "/sys/fs/cgroup" ]
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CMD ["/usr/sbin/init"]
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root@nfs-harbor ~]# docker bulid -t xingdian .
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```
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构建项目镜像：
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```shell
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[root@nfs-harbor nginx]# cat Dockerfile
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FROM xingdian
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ADD nginx-1.20.2.tar.gz /usr/local
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RUN rm -rf /etc/yum.repos.d/*
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COPY CentOS-Base.repo /etc/yum.repos.d/
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COPY epel.repo /etc/yum.repos.d/
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RUN yum clean all && yum makecache fast
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RUN yum -y install gcc gcc-c++ openssl openssl-devel pcre-devel zlib-devel make
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WORKDIR /usr/local/nginx-1.20.2
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RUN ./configure --prefix=/usr/local/nginx
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RUN make && make install
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WORKDIR /usr/local/nginx
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ENV PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/nginx/sbin
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EXPOSE 80
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RUN rm -rf /usr/local/nginx/conf/nginx.conf
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COPY nginx.conf /usr/local/nginx/conf/
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RUN mkdir /dist
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CMD ["nginx", "-g", "daemon off;"]
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[root@nfs-harbor nginx]# docker build -t nginx:v2 .
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```
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注意：
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需要事先准备好Centos的Base仓库和epel仓库
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#### 2.上传项目到harbor
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修改镜像tag：
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```shell
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[root@nfs-harbor ~]# docker tag nginx:v2 10.0.0.230/xingdian/nginx:v2
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```
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登录私有仓库：
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```shell
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[root@nfs-harbor ~]# docker login 10.0.0.230
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Username: xingdian
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Password:
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```
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上传镜像：
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```shell
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[root@nfs-harbor ~]# docker push 10.0.0.230/xingdian/nginx:v2
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```
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注意：
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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
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#### 3.kubernetes集群连接harbor
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修改所有kubernetes集群能够访问http仓库，默认访问的是https
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```shell
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[root@master ~]# vim /etc/systemd/system/multi-user.target.wants/docker.service
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ExecStart=/usr/bin/dockerd -H fd:// --insecure-registry 10.0.1.13 --containerd=/run/containerd/containerd.sock
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[root@master ~]# systemctl daemon-reload
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[root@master ~]# systemctl restart docker
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```
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kubernetes集群创建secret用于连接harbor
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```shell
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[root@master ~]# kubectl create secret docker-registry regcred --docker-server=10.0.0.230 --docker-username=diange --docker-password=QianFeng@123
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[root@master ~]# kubectl get secret
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NAME TYPE DATA AGE
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regcred kubernetes.io/dockerconfigjson 1 19h
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```
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注意：
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regcred：secret的名字
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--docker-server：指定服务器的地址
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--docker-username：指定harbor的用户
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--docker-password：指定harbor的密码
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#### 4.部署NFS
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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
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```shell
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[root@nfs-harbor ~]# yum -y install nfs-utils
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[root@nfs-harbor ~]# systemctl start nfs
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[root@nfs-harbor ~]# systemctl enable nfs
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```
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创建共享目录并对外共享
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```shell
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[root@nfs-harbor ~]# mkdir /kubernetes-1
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[root@nfs-harbor ~]# cat /etc/exports
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/kubernetes-1 *(rw,no_root_squash,sync)
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[root@nfs-harbor ~]# exportfs -rv
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```
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项目放入共享目录下
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```shell
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[root@nfs-harbor ~]# git clone https://github.com/blackmed/xingdian-project.git
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[root@nfs-harbor ~]# unzip dist.zip
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[root@nfs-harbor ~]# cp -r dist/* /kubernetes-1
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```
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#### 5.创建statefulset部署项目
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该yaml文件中除了statefulset以外还有service、PersistentVolume、StorageClass
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```shell
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[root@master xingdian]# cat Statefulset.yaml
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apiVersion: v1
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kind: Service
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metadata:
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name: nginx
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labels:
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app: nginx
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spec:
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type: NodePort
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ports:
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- port: 80
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name: web
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targetPort: 80
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nodePort: 30010
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selector:
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app: nginx
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---
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apiVersion: storage.k8s.io/v1
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kind: StorageClass
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metadata:
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name: xingdian
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provisioner: example.com/external-nfs
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parameters:
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server: 10.0.0.230
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path: /kubernetes-1
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readOnly: "false"
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---
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apiVersion: v1
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kind: PersistentVolume
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metadata:
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name: xingdian-1
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spec:
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capacity:
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storage: 1Gi
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volumeMode: Filesystem
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accessModes:
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- ReadWriteOnce
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storageClassName: xingdian
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nfs:
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path: /kubernetes-1
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server: 10.0.0.230
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---
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apiVersion: v1
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kind: PersistentVolume
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metadata:
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name: xingdian-2
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spec:
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capacity:
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storage: 1Gi
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volumeMode: Filesystem
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accessModes:
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- ReadWriteOnce
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storageClassName: xingdian
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nfs:
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path: /kubernetes-1
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server: 10.0.0.230
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---
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apiVersion: apps/v1
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kind: StatefulSet
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metadata:
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name: web
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spec:
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selector:
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matchLabels:
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app: nginx
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serviceName: "nginx"
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replicas: 2
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template:
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metadata:
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labels:
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app: nginx
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spec:
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terminationGracePeriodSeconds: 10
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containers:
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- name: nginx
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image: 10.0.0.230/xingdian/nginx:v2
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ports:
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- containerPort: 80
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name: web
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volumeMounts:
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- name: www
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mountPath: /dist
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volumeClaimTemplates:
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- metadata:
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name: www
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spec:
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accessModes: [ "ReadWriteOnce" ]
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storageClassName: "xingdian"
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resources:
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requests:
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storage: 1Gi
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```
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#### 6.运行
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```shell
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[root@master xingdian]# kubectl create -f Statefulset.yaml
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service/nginx created
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storageclass.storage.k8s.io/xingdian created
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persistentvolume/xingdian-1 created
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persistentvolume/xingdian-2 created
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statefulset.apps/web created
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```
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## 三：项目验证
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#### 1.pv验证
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```shell
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[root@master xingdian]# kubectl get pv
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NAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGE
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xingdian-1 1Gi RWO Retain Bound default/www-web-1 xingdian 9m59s
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xingdian-2 1Gi RWO Retain Bound default/www-web-0 xingdian 9m59s
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```
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#### 2.pvc验证
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```shell
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[root@master xingdian]# kubectl get pvc
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NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
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www-web-0 Bound xingdian-2 1Gi RWO xingdian 10m
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www-web-1 Bound xingdian-1 1Gi RWO xingdian 10m
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```
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#### 3.storageClass验证
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```shell
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[root@master xingdian]# kubectl get storageclass
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NAME PROVISIONER RECLAIMPOLICY VOLUMEBINDINGMODE ALLOWVOLUMEEXPANSION AGE
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xingdian example.com/external-nfs Delete Immediate false 10m
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```
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#### 4.statefulset验证
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```shell
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[root@master xingdian]# kubectl get statefulset
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NAME READY AGE
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web 2/2 13m
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[root@master xingdian]# kubectl get pod
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NAME READY STATUS RESTARTS AGE
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web-0 1/1 Running 0 13m
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web-1 1/1 Running 0 13m
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```
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#### 5.service验证
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```shell
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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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nginx NodePort 10.111.189.32 <none> 80:30010/TCP 13m
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```
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#### 6.浏览器访问
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<img src="https://xingdian-image.oss-cn-beijing.aliyuncs.com/xingdian-image/image-20220502193031689.png" alt="image-20220502193031689" style="zoom:80%;" />
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<h1><center>基于Kubernetes集群构建ES集群</center></h1>
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作者：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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| 节点 | 地址 |
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| :---------------: | :---------: |
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| Kubernetes-Master | 10.9.12.206 |
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| Kubernetes-Node-1 | 10.9.12.205 |
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| Kubernetes-Node-2 | 10.9.12.204 |
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| Kubernetes-Node-3 | 10.9.12.203 |
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| DNS服务器 | 10.9.12.210 |
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| 代理服务器 | 10.9.12.209 |
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| NFS存储 | 10.9.12.250 |
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#### 2.Kuboard集群管理
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## 二：构建ES集群
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#### 1.持久化存储构建
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1.NFS服务器部署
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略
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2.创建共享目录
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本次采用脚本创建，脚本如下
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```shell
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[root@xingdiancloud-1 ~]# cat nfs.sh
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#!/bin/bash
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read -p "请输入您要创建的共享目录：" dir
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if [ -d $dir ];then
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echo "请重新输入共享目录: "
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read again_dir
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mkdir $again_dir -p
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echo "共享目录创建成功"
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read -p "请输入共享对象：" ips
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echo "$again_dir ${ips}(rw,sync,no_root_squash)" >> /etc/exports
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xingdian=`cat /etc/exports |grep "$again_dir" |wc -l`
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if [ $xingdian -eq 1 ];then
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echo "成功配置共享"
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exportfs -rv >/dev/null
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exit
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else
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exit
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fi
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else
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mkdir $dir -p
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echo "共享目录创建成功"
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read -p "请输入共享对象：" ips
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echo "$dir ${ips}(rw,sync,no_root_squash)" >> /etc/exports
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xingdian=`cat /etc/exports |grep "$dir" |wc -l`
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if [ $xingdian -eq 1 ];then
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echo "成功配置共享"
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exportfs -rv >/dev/null
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exit
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else
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exit
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fi
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fi
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```
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3.创建存储类
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```yaml
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[root@xingdiancloud-master ~]# vim namespace.yaml
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apiVersion: v1
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kind: Namespace
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metadata:
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name: logging
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[root@xingdiancloud-master ~]# vim storageclass.yaml
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apiVersion: storage.k8s.io/v1
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kind: StorageClass
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metadata:
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annotations:
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k8s.kuboard.cn/storageNamespace: logging
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k8s.kuboard.cn/storageType: nfs_client_provisioner
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name: data-es
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parameters:
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archiveOnDelete: 'false'
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provisioner: nfs-data-es
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reclaimPolicy: Retain
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volumeBindingMode: Immediate
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```
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4.创建存储卷
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```yaml
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[root@xingdiancloud-master ~]# vim persistenVolume.yaml
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apiVersion: v1
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kind: PersistentVolume
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metadata:
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annotations:
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pv.kubernetes.io/bound-by-controller: 'yes'
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finalizers:
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- kubernetes.io/pv-protection
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name: nfs-pv-data-es
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spec:
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accessModes:
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- ReadWriteMany
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capacity:
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storage: 100Gi
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claimRef:
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apiVersion: v1
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kind: PersistentVolumeClaim
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name: nfs-pvc-data-es
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namespace: kube-system
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nfs:
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path: /data/es-data
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server: 10.9.12.250
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persistentVolumeReclaimPolicy: Retain
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storageClassName: nfs-storageclass-provisioner
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volumeMode: Filesystem
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```
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注意：存储类和存储卷也可以使用Kuboard界面创建
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#### 2.设定节点标签
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```shell
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[root@xingdiancloud-master ~]# kubectl label nodes xingdiancloud-node-1 es=log
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```
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注意：
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所有运行ES的节点需要进行标签的设定
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目的配合接下来的StatefulSet部署ES集群
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#### 3.ES集群部署
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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。
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```yaml
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apiVersion: apps/v1
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kind: StatefulSet
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||||
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 +1,217 @@
|
|||
<h1><center>基于kubeadm部署kubernetes集群</center></h1>
|
||||
|
||||
著作：行癫 <盗版必究>
|
||||
|
||||
------
|
||||
|
||||
## 一：环境准备
|
||||
|
||||
三台服务器，一台master，两台node,master节点必须是2核cpu
|
||||
|
||||
| 节点名称 | IP地址 |
|
||||
| :------: | :--------: |
|
||||
| master | 10.0.0.220 |
|
||||
| node-1 | 10.0.0.221 |
|
||||
| node-2 | 10.0.0.222 |
|
||||
| node-3 | 10.0.0.223 |
|
||||
|
||||
#### 1.所有服务器关闭防火墙和selinux
|
||||
|
||||
```shell
|
||||
[root@localhost ~]# systemctl stop firewalld
|
||||
[root@localhost ~]# systemctl disable firewalld
|
||||
[root@localhost ~]# setenforce 0
|
||||
[root@localhost ~]# sed -i '/^SELINUX=/c SELINUX=disabled/' /etc/selinux/config
|
||||
[root@localhost ~]# swapoff -a 临时关闭
|
||||
[root@localhost ~]# sed -i 's/.*swap.*/#&/' /etc/fstab 永久关闭
|
||||
注意：
|
||||
关闭所有服务器的交换分区
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 2.保证yum仓库可用
|
||||
|
||||
```shell
|
||||
[root@localhost ~]# yum clean all
|
||||
[root@localhost ~]# yum makecache fast
|
||||
注意：
|
||||
使用国内yum源
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 3.修改主机名
|
||||
|
||||
```shell
|
||||
[root@localhost ~]# hostnamectl set-hostname master
|
||||
[root@localhost ~]# hostnamectl set-hostname node-1
|
||||
[root@localhost ~]# hostnamectl set-hostname node-2
|
||||
[root@localhost ~]# hostnamectl set-hostname node-3
|
||||
注意：
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 4.添加本地解析
|
||||
|
||||
```shell
|
||||
[root@master ~]# cat >> /etc/hosts <<eof
|
||||
10.0.0.220 master
|
||||
10.0.0.221 node-1
|
||||
10.0.0.222 node-2
|
||||
10.0.0.223 node-3
|
||||
eof
|
||||
注意：
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 5.安装容器
|
||||
|
||||
```shell
|
||||
[root@master ~]# yum install -y yum-utils device-mapper-persistent-data lvm2
|
||||
[root@master ~]# yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
|
||||
[root@master ~]# yum -y install docker-ce
|
||||
[root@master ~]# systemctl start docker
|
||||
[root@master ~]# systemctl enable docker
|
||||
注意：
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 6.安装kubeadm和kubelet
|
||||
|
||||
```shell
|
||||
[root@master ~]# cat >> /etc/yum.repos.d/kubernetes.repo <<eof
|
||||
[kubernetes]
|
||||
name=Kubernetes
|
||||
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
|
||||
enabled=1
|
||||
gpgcheck=0
|
||||
repo_gpgcheck=0
|
||||
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
|
||||
eof
|
||||
[root@master ~]# yum -y install kubeadm kubelet kubectl ipvsadm
|
||||
注意：
|
||||
所有节点操作
|
||||
这里安装的是最新版本（也可以指定版本号：kubeadm-1.19.4）
|
||||
```
|
||||
|
||||
#### 7.配置kubelet的cgroups
|
||||
|
||||
```shell
|
||||
[root@master ~]# cat >/etc/sysconfig/kubelet<<EOF
|
||||
KUBELET_EXTRA_ARGS="--cgroup-driver=cgroupfs --pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/google_containers/pause-amd64:3.1"
|
||||
EOF
|
||||
k8s.gcr.io/pause:3.6
|
||||
```
|
||||
|
||||
#### 8.加载内核模块
|
||||
|
||||
```shell
|
||||
[root@master ~]# modprobe br_netfilter
|
||||
注意：
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 9.修改内核参数
|
||||
|
||||
```shell
|
||||
[root@master ~]# cat >> /etc/sysctl.conf <<eof
|
||||
net.bridge.bridge-nf-call-ip6tables = 1
|
||||
net.bridge.bridge-nf-call-iptables = 1
|
||||
vm.swappiness=0
|
||||
eof
|
||||
[root@master ~]# sysctl -p
|
||||
net.bridge.bridge-nf-call-ip6tables = 1
|
||||
net.bridge.bridge-nf-call-iptables = 1
|
||||
vm.swappiness = 0
|
||||
注意：
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
## 二：部署Kubernetes
|
||||
|
||||
#### 1.镜像下载
|
||||
|
||||
```shell
|
||||
https://www.xingdiancloud.cn/index.php/s/6GyinxZwSRemHPz
|
||||
注意：
|
||||
下载后上传到所有节点
|
||||
```
|
||||
|
||||
#### 2.镜像导入
|
||||
|
||||
```shell
|
||||
[root@master ~]# cat image_load.sh
|
||||
#!/bin/bash
|
||||
image_path=`pwd`
|
||||
for i in `ls "${image_path}" | grep tar`
|
||||
do
|
||||
docker load < $i
|
||||
done
|
||||
[root@master ~]# bash image_load.sh
|
||||
注意：
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 3.master节点初始化
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubeadm init --kubernetes-version=1.23.1 --pod-network-cidr=10.244.0.0/16 --apiserver-advertise-address=10.0.0.220
|
||||
|
||||
Your Kubernetes control-plane has initialized successfully!
|
||||
|
||||
To start using your cluster, you need to run the following as a regular user:
|
||||
|
||||
mkdir -p $HOME/.kube
|
||||
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
|
||||
sudo chown $(id -u):$(id -g) $HOME/.kube/config
|
||||
|
||||
Alternatively, if you are the root user, you can run:
|
||||
|
||||
export KUBECONFIG=/etc/kubernetes/admin.conf
|
||||
|
||||
You should now deploy a pod network to the cluster.
|
||||
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
|
||||
https://kubernetes.io/docs/concepts/cluster-administration/addons/
|
||||
|
||||
Then you can join any number of worker nodes by running the following on each as root:
|
||||
|
||||
kubeadm join 10.0.0.220:6443 --token mzrm3c.u9mpt80rddmjvd3g \
|
||||
--discovery-token-ca-cert-hash sha256:fec53dfeacc5187d3f0e3998d65bd3e303fa64acd5156192240728567659bf4a
|
||||
```
|
||||
|
||||
#### 4.安装pod插件
|
||||
|
||||
```shell
|
||||
[root@master ~]# wget http://www.xingdiancloud.cn:92/index.php/s/3Ad7aTxqPPja24M/download/flannel.yaml
|
||||
[root@master ~]# kubectl create -f flannel.yaml
|
||||
```
|
||||
|
||||
#### 5.将node加入工作节点
|
||||
|
||||
```shell
|
||||
[root@node-1 ~]# kubeadm join 10.0.0.220:6443 --token mzrm3c.u9mpt80rddmjvd3g --discovery-token-ca-cert-hash sha256:fec53dfeacc5187d3f0e3998d65bd3e303fa64acd5156192240728567659bf4a
|
||||
注意：
|
||||
这里使用的是master初始化产生的token
|
||||
这里的token时间长了会改变，需要使用命令获取，见下期内容
|
||||
没有记录集群 join 命令的可以通过以下方式重新获取:
|
||||
kubeadm token create --print-join-command --ttl=0
|
||||
```
|
||||
|
||||
#### 6.master节点查看集群状态
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl get nodes
|
||||
NAME STATUS ROLES AGE VERSION
|
||||
master Ready control-plane,master 26m v1.23.1
|
||||
node-1 Ready <none> 4m45s v1.23.1
|
||||
node-2 Ready <none> 4m40s v1.23.1
|
||||
node-3 Ready <none> 4m46s v1.23.1
|
||||
```
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,953 @@
|
|||
<h1><center>基于kubeadm部署kubernetes集群</center></h1>
|
||||
|
||||
著作：行癫 <盗版必究>
|
||||
|
||||
------
|
||||
|
||||
## 一：环境准备
|
||||
|
||||
三台服务器，一台master，两台node,master节点必须是2核cpu
|
||||
|
||||
| 节点名称 | IP地址 |
|
||||
| :------: | :--------: |
|
||||
| master | 10.0.0.220 |
|
||||
| node-1 | 10.0.0.221 |
|
||||
| node-2 | 10.0.0.222 |
|
||||
| node-3 | 10.0.0.223 |
|
||||
|
||||
#### 1.所有服务器关闭防火墙和selinux
|
||||
|
||||
```shell
|
||||
[root@localhost ~]# systemctl stop firewalld
|
||||
[root@localhost ~]# systemctl disable firewalld
|
||||
[root@localhost ~]# setenforce 0
|
||||
[root@localhost ~]# sed -i '/^SELINUX=/c SELINUX=disabled/' /etc/selinux/config
|
||||
[root@localhost ~]# swapoff -a 临时关闭
|
||||
[root@localhost ~]# sed -i 's/.*swap.*/#&/' /etc/fstab 永久关闭
|
||||
注意：
|
||||
关闭所有服务器的交换分区
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 2.保证yum仓库可用
|
||||
|
||||
```shell
|
||||
[root@localhost ~]# yum clean all
|
||||
[root@localhost ~]# yum makecache fast
|
||||
注意：
|
||||
使用国内yum源
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 3.修改主机名
|
||||
|
||||
```shell
|
||||
[root@localhost ~]# hostnamectl set-hostname master
|
||||
[root@localhost ~]# hostnamectl set-hostname node-1
|
||||
[root@localhost ~]# hostnamectl set-hostname node-2
|
||||
[root@localhost ~]# hostnamectl set-hostname node-3
|
||||
注意：
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 4.添加本地解析
|
||||
|
||||
```shell
|
||||
[root@master ~]# cat >> /etc/hosts <<eof
|
||||
10.0.0.220 master
|
||||
10.0.0.221 node-1
|
||||
10.0.0.222 node-2
|
||||
10.0.0.223 node-3
|
||||
eof
|
||||
注意：
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 5.安装容器运行时
|
||||
|
||||
```shell
|
||||
第一步：Installing containerd
|
||||
链接地址：https://github.com/containerd/containerd/blob/main/docs/getting-started.md
|
||||
[root@master ~]# wget https://github.com/containerd/containerd/releases/download/v1.6.8/containerd-1.6.8-linux-amd64.tar.gz
|
||||
[root@master ~]# tar xf containerd-1.6.8-linux-amd64.tar.gz
|
||||
[root@master ~]# cp bin/* /usr/local/bin
|
||||
创建systemctl管理服务启动文件
|
||||
/usr/local/lib/systemd/system/containerd.service
|
||||
/etc/systemd/system/multi-user.target.wants/containerd.service
|
||||
[root@master ~]# cat containerd.service
|
||||
# Copyright The containerd Authors.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
[Unit]
|
||||
Description=containerd container runtime
|
||||
Documentation=https://containerd.io
|
||||
After=network.target local-fs.target
|
||||
|
||||
[Service]
|
||||
#uncomment to enable the experimental sbservice (sandboxed) version of containerd/cri integration
|
||||
#Environment="ENABLE_CRI_SANDBOXES=sandboxed"
|
||||
ExecStartPre=-/sbin/modprobe overlay
|
||||
ExecStart=/usr/local/bin/containerd
|
||||
|
||||
Type=notify
|
||||
Delegate=yes
|
||||
KillMode=process
|
||||
Restart=always
|
||||
RestartSec=5
|
||||
# Having non-zero Limit*s causes performance problems due to accounting overhead
|
||||
# in the kernel. We recommend using cgroups to do container-local accounting.
|
||||
LimitNPROC=infinity
|
||||
LimitCORE=infinity
|
||||
LimitNOFILE=infinity
|
||||
# Comment TasksMax if your systemd version does not supports it.
|
||||
# Only systemd 226 and above support this version.
|
||||
TasksMax=infinity
|
||||
OOMScoreAdjust=-999
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
[root@master ~]# systemctl daemon-reload
|
||||
[root@master ~]# systemctl start containerd
|
||||
|
||||
第二步：Installing runc
|
||||
链接地址：https://github.com/opencontainers/runc/releases
|
||||
[root@master ~]# wget https://github.com/opencontainers/runc/releases/download/v1.1.4/runc.amd64
|
||||
[root@master ~]# install -m 755 runc.amd64 /usr/local/sbin/runc
|
||||
|
||||
第三步：Installing CNI plugins
|
||||
链接地址：https://github.com/containernetworking/plugins/releases
|
||||
[root@master ~]# wget https://github.com/containernetworking/plugins/releases/download/v1.1.1/cni-plugins-linux-amd64-v1.1.1.tgz
|
||||
[root@master ~]# mkdir -p /opt/cni/bin
|
||||
[root@master ~]# tar Cxzvf /opt/cni/bin cni-plugins-linux-amd64-v1.1.1.tgz
|
||||
./
|
||||
./macvlan
|
||||
./static
|
||||
./vlan
|
||||
./portmap
|
||||
./host-local
|
||||
./vrf
|
||||
./bridge
|
||||
./tuning
|
||||
./firewall
|
||||
./host-device
|
||||
./sbr
|
||||
./loopback
|
||||
./dhcp
|
||||
./ptp
|
||||
./ipvlan
|
||||
./bandwidth
|
||||
|
||||
注意：
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 6.安装kubeadm和kubelet
|
||||
|
||||
```shell
|
||||
国外仓库：
|
||||
[root@master ~]# cat >> /etc/yum.repos.d/kubernetes.repo <<eof
|
||||
[kubernetes]
|
||||
name=Kubernetes
|
||||
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-\$basearch
|
||||
enabled=1
|
||||
gpgcheck=1
|
||||
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
|
||||
exclude=kubelet kubeadm kubectl
|
||||
eof
|
||||
[root@master ~]# yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes
|
||||
|
||||
国内仓库：
|
||||
[root@master ~]# cat >> /etc/yum.repos.d/kubernetes.repo <<eof
|
||||
[kubernetes]
|
||||
name=Kubernetes
|
||||
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
|
||||
enabled=1
|
||||
gpgcheck=0
|
||||
repo_gpgcheck=0
|
||||
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
|
||||
eof
|
||||
[root@master ~]# yum -y install kubeadm kubelet kubectl ipvsadm
|
||||
注意：
|
||||
所有节点操作
|
||||
这里安装的是最新版本（也可以指定版本号：kubeadm-1.25.0）
|
||||
|
||||
修改kubelet配置
|
||||
[root@master ~]# cat /etc/sysconfig/kubelet
|
||||
KUBELET_EXTRA_ARGS="--pod-infra-container-image=registry.aliyuncs.com/google_containers/pause:3.6"
|
||||
|
||||
[root@master ~]# cat /etc/systemd/system/multi-user.target.wants/kubelet.service
|
||||
[Unit]
|
||||
Description=kubelet: The Kubernetes Node Agent
|
||||
Documentation=https://kubernetes.io/docs/
|
||||
Wants=network-online.target
|
||||
After=network-online.target
|
||||
|
||||
[Service]
|
||||
ExecStart=/usr/bin/kubelet \
|
||||
--container-runtime=remote \
|
||||
--container-runtime-endpoint=unix:///run//containerd/containerd.sock
|
||||
Restart=always
|
||||
StartLimitInterval=0
|
||||
RestartSec=10
|
||||
|
||||
[Install]
|
||||
WantedBy=multi-user.target
|
||||
```
|
||||
|
||||
#### 7.加载内核模块
|
||||
|
||||
```shell
|
||||
[root@master ~]# modprobe br_netfilter
|
||||
注意：
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
#### 8.修改内核参数
|
||||
|
||||
```shell
|
||||
[root@master ~]# cat >> /etc/sysctl.conf <<eof
|
||||
net.bridge.bridge-nf-call-ip6tables = 1
|
||||
net.bridge.bridge-nf-call-iptables = 1
|
||||
vm.swappiness=0
|
||||
net.ipv4.ip_forward=1
|
||||
eof
|
||||
[root@master ~]# sysctl -p
|
||||
net.bridge.bridge-nf-call-ip6tables = 1
|
||||
net.bridge.bridge-nf-call-iptables = 1
|
||||
vm.swappiness = 0
|
||||
注意：
|
||||
所有节点操作
|
||||
```
|
||||
|
||||
## 二：部署Kubernetes
|
||||
|
||||
#### 1.镜像下载
|
||||
|
||||
```shell
|
||||
[root@master ~]# cat image.sh
|
||||
ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/etcd:3.5.4-0
|
||||
ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/coredns:v1.9.3
|
||||
ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy:v1.25.0
|
||||
ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/kube-scheduler:v1.25.0
|
||||
ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/kube-controller-manager:v1.25.0
|
||||
ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/kube-apiserver:v1.25.0
|
||||
ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.6
|
||||
ctr -n k8s.io i pull -k registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.8
|
||||
|
||||
#flannel镜像
|
||||
ctr -n k8s.io i pull docker.io/rancher/mirrored-flannelcni-flannel-cni-plugin:v1.1.0
|
||||
ctr -n k8s.io i pull docker.io/rancher/mirrored-flannelcni-flannel:v0.19.2
|
||||
|
||||
ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/etcd:3.5.4-0 registry.k8s.io/etcd:3.5.4-0
|
||||
ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/coredns:v1.9.3 registry.k8s.io/coredns/coredns:v1.9.3
|
||||
ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.8 k8s.gcr.io/pause:3.6
|
||||
ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy:v1.25.0 registry.k8s.io/kube-proxy:v1.25.0
|
||||
ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-scheduler:v1.25.0 registry.k8s.io/kube-scheduler:v1.25.0
|
||||
ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-controller-manager:v1.25.0 registry.k8s.io/kube-controller-manager:v1.25.0
|
||||
ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/kube-apiserver:v1.25.0 registry.k8s.io/kube-apiserver:v1.25.0
|
||||
ctr -n k8s.io i tag registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.8 registry.k8s.io/pause:3.8
|
||||
[root@master ~]# bash image.sh
|
||||
注意：
|
||||
所有节点操作
|
||||
|
||||
注意：
|
||||
[root@master ~]# kubeadm config images list //获取所需要的镜像
|
||||
registry.k8s.io/kube-apiserver:v1.25.0
|
||||
registry.k8s.io/kube-controller-manager:v1.25.0
|
||||
registry.k8s.io/kube-scheduler:v1.25.0
|
||||
registry.k8s.io/kube-proxy:v1.25.0
|
||||
registry.k8s.io/pause:3.8
|
||||
registry.k8s.io/etcd:3.5.4-0
|
||||
registry.k8s.io/coredns/coredns:v1.9.3
|
||||
```
|
||||
|
||||
#### 3.master节点初始化
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubeadm init --kubernetes-version=1.23.1 --pod-network-cidr=10.244.0.0/16 --apiserver-advertise-address=10.0.0.220
|
||||
|
||||
Your Kubernetes control-plane has initialized successfully!
|
||||
|
||||
To start using your cluster, you need to run the following as a regular user:
|
||||
|
||||
mkdir -p $HOME/.kube
|
||||
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
|
||||
sudo chown $(id -u):$(id -g) $HOME/.kube/config
|
||||
|
||||
Alternatively, if you are the root user, you can run:
|
||||
|
||||
export KUBECONFIG=/etc/kubernetes/admin.conf
|
||||
|
||||
You should now deploy a pod network to the cluster.
|
||||
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
|
||||
https://kubernetes.io/docs/concepts/cluster-administration/addons/
|
||||
|
||||
Then you can join any number of worker nodes by running the following on each as root:
|
||||
|
||||
kubeadm join 10.0.2.150:6443 --token tlohed.bwgh4tt5erbc2zhg \
|
||||
--discovery-token-ca-cert-hash sha256:9b28238c55bf5b2e5e0d68c6303e50bf6f12e7e07126897c846a4f5328157e16
|
||||
```
|
||||
|
||||
#### 4.安装pod插件
|
||||
|
||||
```shell
|
||||
[root@master ~]# vi kube-flannel.yaml
|
||||
---
|
||||
kind: Namespace
|
||||
apiVersion: v1
|
||||
metadata:
|
||||
name: kube-flannel
|
||||
labels:
|
||||
pod-security.kubernetes.io/enforce: privileged
|
||||
---
|
||||
kind: ClusterRole
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
metadata:
|
||||
name: flannel
|
||||
rules:
|
||||
- apiGroups:
|
||||
- ""
|
||||
resources:
|
||||
- pods
|
||||
verbs:
|
||||
- get
|
||||
- apiGroups:
|
||||
- ""
|
||||
resources:
|
||||
- nodes
|
||||
verbs:
|
||||
- list
|
||||
- watch
|
||||
- apiGroups:
|
||||
- ""
|
||||
resources:
|
||||
- nodes/status
|
||||
verbs:
|
||||
- patch
|
||||
---
|
||||
kind: ClusterRoleBinding
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
metadata:
|
||||
name: flannel
|
||||
roleRef:
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
kind: ClusterRole
|
||||
name: flannel
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: flannel
|
||||
namespace: kube-flannel
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: ServiceAccount
|
||||
metadata:
|
||||
name: flannel
|
||||
namespace: kube-flannel
|
||||
---
|
||||
kind: ConfigMap
|
||||
apiVersion: v1
|
||||
metadata:
|
||||
name: kube-flannel-cfg
|
||||
namespace: kube-flannel
|
||||
labels:
|
||||
tier: node
|
||||
app: flannel
|
||||
data:
|
||||
cni-conf.json: |
|
||||
{
|
||||
"name": "cbr0",
|
||||
"cniVersion": "0.3.1",
|
||||
"plugins": [
|
||||
{
|
||||
"type": "flannel",
|
||||
"delegate": {
|
||||
"hairpinMode": true,
|
||||
"isDefaultGateway": true
|
||||
}
|
||||
},
|
||||
{
|
||||
"type": "portmap",
|
||||
"capabilities": {
|
||||
"portMappings": true
|
||||
}
|
||||
}
|
||||
]
|
||||
}
|
||||
net-conf.json: |
|
||||
{
|
||||
"Network": "10.244.0.0/16",
|
||||
"Backend": {
|
||||
"Type": "vxlan"
|
||||
}
|
||||
}
|
||||
---
|
||||
apiVersion: apps/v1
|
||||
kind: DaemonSet
|
||||
metadata:
|
||||
name: kube-flannel-ds
|
||||
namespace: kube-flannel
|
||||
labels:
|
||||
tier: node
|
||||
app: flannel
|
||||
spec:
|
||||
selector:
|
||||
matchLabels:
|
||||
app: flannel
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
tier: node
|
||||
app: flannel
|
||||
spec:
|
||||
affinity:
|
||||
nodeAffinity:
|
||||
requiredDuringSchedulingIgnoredDuringExecution:
|
||||
nodeSelectorTerms:
|
||||
- matchExpressions:
|
||||
- key: kubernetes.io/os
|
||||
operator: In
|
||||
values:
|
||||
- linux
|
||||
hostNetwork: true
|
||||
priorityClassName: system-node-critical
|
||||
tolerations:
|
||||
- operator: Exists
|
||||
effect: NoSchedule
|
||||
serviceAccountName: flannel
|
||||
initContainers:
|
||||
- name: install-cni-plugin
|
||||
#image: flannelcni/flannel-cni-plugin:v1.1.0 for ppc64le and mips64le (dockerhub limitations may apply)
|
||||
image: docker.io/rancher/mirrored-flannelcni-flannel-cni-plugin:v1.1.0
|
||||
command:
|
||||
- cp
|
||||
args:
|
||||
- -f
|
||||
- /flannel
|
||||
- /opt/cni/bin/flannel
|
||||
volumeMounts:
|
||||
- name: cni-plugin
|
||||
mountPath: /opt/cni/bin
|
||||
- name: install-cni
|
||||
#image: flannelcni/flannel:v0.19.2 for ppc64le and mips64le (dockerhub limitations may apply)
|
||||
image: docker.io/rancher/mirrored-flannelcni-flannel:v0.19.2
|
||||
command:
|
||||
- cp
|
||||
args:
|
||||
- -f
|
||||
- /etc/kube-flannel/cni-conf.json
|
||||
- /etc/cni/net.d/10-flannel.conflist
|
||||
volumeMounts:
|
||||
- name: cni
|
||||
mountPath: /etc/cni/net.d
|
||||
- name: flannel-cfg
|
||||
mountPath: /etc/kube-flannel/
|
||||
containers:
|
||||
- name: kube-flannel
|
||||
#image: flannelcni/flannel:v0.19.2 for ppc64le and mips64le (dockerhub limitations may apply)
|
||||
image: docker.io/rancher/mirrored-flannelcni-flannel:v0.19.2
|
||||
command:
|
||||
- /opt/bin/flanneld
|
||||
args:
|
||||
- --ip-masq
|
||||
- --kube-subnet-mgr
|
||||
resources:
|
||||
requests:
|
||||
cpu: "100m"
|
||||
memory: "50Mi"
|
||||
limits:
|
||||
cpu: "100m"
|
||||
memory: "50Mi"
|
||||
securityContext:
|
||||
privileged: false
|
||||
capabilities:
|
||||
add: ["NET_ADMIN", "NET_RAW"]
|
||||
env:
|
||||
- name: POD_NAME
|
||||
valueFrom:
|
||||
fieldRef:
|
||||
fieldPath: metadata.name
|
||||
- name: POD_NAMESPACE
|
||||
valueFrom:
|
||||
fieldRef:
|
||||
fieldPath: metadata.namespace
|
||||
- name: EVENT_QUEUE_DEPTH
|
||||
value: "5000"
|
||||
volumeMounts:
|
||||
- name: run
|
||||
mountPath: /run/flannel
|
||||
- name: flannel-cfg
|
||||
mountPath: /etc/kube-flannel/
|
||||
- name: xtables-lock
|
||||
mountPath: /run/xtables.lock
|
||||
volumes:
|
||||
- name: run
|
||||
hostPath:
|
||||
path: /run/flannel
|
||||
- name: cni-plugin
|
||||
hostPath:
|
||||
path: /opt/cni/bin
|
||||
- name: cni
|
||||
hostPath:
|
||||
path: /etc/cni/net.d
|
||||
- name: flannel-cfg
|
||||
configMap:
|
||||
name: kube-flannel-cfg
|
||||
- name: xtables-lock
|
||||
hostPath:
|
||||
path: /run/xtables.lock
|
||||
type: FileOrCreate
|
||||
[root@master ~]# kubectl create -f kube-flannel.yaml
|
||||
```
|
||||
|
||||
#### 5.将node加入工作节点
|
||||
|
||||
```shell
|
||||
[root@node-1 ~]# kubeadm join 10.0.0.220:6443 --token mzrm3c.u9mpt80rddmjvd3g --discovery-token-ca-cert-hash sha256:fec53dfeacc5187d3f0e3998d65bd3e303fa64acd5156192240728567659bf4a
|
||||
注意：
|
||||
这里使用的是master初始化产生的token
|
||||
这里的token时间长了会改变，需要使用命令获取，见下期内容
|
||||
没有记录集群 join 命令的可以通过以下方式重新获取:
|
||||
kubeadm token create --print-join-command --ttl=0
|
||||
```
|
||||
|
||||
#### 6.master节点查看集群状态
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl get node
|
||||
NAME STATUS ROLES AGE VERSION
|
||||
master Ready control-plane 7m v1.25.0
|
||||
node-1 Ready <none> 2m7s v1.25.0
|
||||
node-2 Ready <none> 50s v1.25.0
|
||||
node-3 Ready <none> 110s v1.25.0
|
||||
```
|
||||
|
||||
## 三：部署Dashboard
|
||||
|
||||
#### 1.kube-proxy 开启 ipvs
|
||||
|
||||
```shell
|
||||
[root@master ~]# kubectl get configmap kube-proxy -n kube-system -o yaml > kube-proxy-configmap.yaml
|
||||
[root@master ~]# sed -i 's/mode: ""/mode: "ipvs"/' kube-proxy-configmap.yaml
|
||||
[root@master ~]# kubectl apply -f kube-proxy-configmap.yaml
|
||||
[root@master ~]# rm -f kube-proxy-configmap.yaml
|
||||
[root@master ~]# kubectl get pod -n kube-system | grep kube-proxy | awk '{system("kubectl delete pod "$1" -n kube-system")}'
|
||||
```
|
||||
|
||||
#### 2.Dashboard安装脚本
|
||||
|
||||
```shell
|
||||
[root@master ~]# cat dashboard.yaml
|
||||
# Copyright 2017 The Kubernetes Authors.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
|
||||
apiVersion: v1
|
||||
kind: Namespace
|
||||
metadata:
|
||||
name: kubernetes-dashboard
|
||||
|
||||
---
|
||||
|
||||
apiVersion: v1
|
||||
kind: ServiceAccount
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard
|
||||
namespace: kubernetes-dashboard
|
||||
|
||||
---
|
||||
|
||||
kind: Service
|
||||
apiVersion: v1
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard
|
||||
namespace: kubernetes-dashboard
|
||||
spec:
|
||||
type: NodePort
|
||||
ports:
|
||||
- port: 443
|
||||
targetPort: 8443
|
||||
selector:
|
||||
k8s-app: kubernetes-dashboard
|
||||
|
||||
---
|
||||
|
||||
apiVersion: v1
|
||||
kind: Secret
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard-certs
|
||||
namespace: kubernetes-dashboard
|
||||
type: Opaque
|
||||
|
||||
---
|
||||
|
||||
apiVersion: v1
|
||||
kind: Secret
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard-csrf
|
||||
namespace: kubernetes-dashboard
|
||||
type: Opaque
|
||||
data:
|
||||
csrf: ""
|
||||
|
||||
---
|
||||
|
||||
apiVersion: v1
|
||||
kind: Secret
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard-key-holder
|
||||
namespace: kubernetes-dashboard
|
||||
type: Opaque
|
||||
|
||||
---
|
||||
|
||||
kind: ConfigMap
|
||||
apiVersion: v1
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard-settings
|
||||
namespace: kubernetes-dashboard
|
||||
|
||||
---
|
||||
|
||||
kind: Role
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard
|
||||
namespace: kubernetes-dashboard
|
||||
rules:
|
||||
# Allow Dashboard to get, update and delete Dashboard exclusive secrets.
|
||||
- apiGroups: [""]
|
||||
resources: ["secrets"]
|
||||
resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs", "kubernetes-dashboard-csrf"]
|
||||
verbs: ["get", "update", "delete"]
|
||||
# Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map.
|
||||
- apiGroups: [""]
|
||||
resources: ["configmaps"]
|
||||
resourceNames: ["kubernetes-dashboard-settings"]
|
||||
verbs: ["get", "update"]
|
||||
# Allow Dashboard to get metrics.
|
||||
- apiGroups: [""]
|
||||
resources: ["services"]
|
||||
resourceNames: ["heapster", "dashboard-metrics-scraper"]
|
||||
verbs: ["proxy"]
|
||||
- apiGroups: [""]
|
||||
resources: ["services/proxy"]
|
||||
resourceNames: ["heapster", "http:heapster:", "https:heapster:", "dashboard-metrics-scraper", "http:dashboard-metrics-scraper"]
|
||||
verbs: ["get"]
|
||||
|
||||
---
|
||||
|
||||
kind: ClusterRole
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard
|
||||
rules:
|
||||
# Allow Metrics Scraper to get metrics from the Metrics server
|
||||
- apiGroups: ["metrics.k8s.io"]
|
||||
resources: ["pods", "nodes"]
|
||||
verbs: ["get", "list", "watch"]
|
||||
|
||||
---
|
||||
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: RoleBinding
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard
|
||||
namespace: kubernetes-dashboard
|
||||
roleRef:
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
kind: Role
|
||||
name: kubernetes-dashboard
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: kubernetes-dashboard
|
||||
namespace: kubernetes-dashboard
|
||||
|
||||
---
|
||||
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: ClusterRoleBinding
|
||||
metadata:
|
||||
name: kubernetes-dashboard
|
||||
roleRef:
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
kind: ClusterRole
|
||||
name: kubernetes-dashboard
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: kubernetes-dashboard
|
||||
namespace: kubernetes-dashboard
|
||||
|
||||
---
|
||||
|
||||
kind: Deployment
|
||||
apiVersion: apps/v1
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: kubernetes-dashboard
|
||||
namespace: kubernetes-dashboard
|
||||
spec:
|
||||
replicas: 1
|
||||
revisionHistoryLimit: 10
|
||||
selector:
|
||||
matchLabels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
spec:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
containers:
|
||||
- name: kubernetes-dashboard
|
||||
image: kubernetesui/dashboard:v2.6.1
|
||||
imagePullPolicy: Always
|
||||
ports:
|
||||
- containerPort: 8443
|
||||
protocol: TCP
|
||||
args:
|
||||
- --auto-generate-certificates
|
||||
- --namespace=kubernetes-dashboard
|
||||
# Uncomment the following line to manually specify Kubernetes API server Host
|
||||
# If not specified, Dashboard will attempt to auto discover the API server and connect
|
||||
# to it. Uncomment only if the default does not work.
|
||||
# - --apiserver-host=http://my-address:port
|
||||
volumeMounts:
|
||||
- name: kubernetes-dashboard-certs
|
||||
mountPath: /certs
|
||||
# Create on-disk volume to store exec logs
|
||||
- mountPath: /tmp
|
||||
name: tmp-volume
|
||||
livenessProbe:
|
||||
httpGet:
|
||||
scheme: HTTPS
|
||||
path: /
|
||||
port: 8443
|
||||
initialDelaySeconds: 30
|
||||
timeoutSeconds: 30
|
||||
securityContext:
|
||||
allowPrivilegeEscalation: false
|
||||
readOnlyRootFilesystem: true
|
||||
runAsUser: 1001
|
||||
runAsGroup: 2001
|
||||
volumes:
|
||||
- name: kubernetes-dashboard-certs
|
||||
secret:
|
||||
secretName: kubernetes-dashboard-certs
|
||||
- name: tmp-volume
|
||||
emptyDir: {}
|
||||
serviceAccountName: kubernetes-dashboard
|
||||
nodeSelector:
|
||||
"kubernetes.io/os": linux
|
||||
# Comment the following tolerations if Dashboard must not be deployed on master
|
||||
tolerations:
|
||||
- key: node-role.kubernetes.io/master
|
||||
effect: NoSchedule
|
||||
|
||||
---
|
||||
|
||||
kind: Service
|
||||
apiVersion: v1
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: dashboard-metrics-scraper
|
||||
name: dashboard-metrics-scraper
|
||||
namespace: kubernetes-dashboard
|
||||
spec:
|
||||
ports:
|
||||
- port: 8000
|
||||
targetPort: 8000
|
||||
selector:
|
||||
k8s-app: dashboard-metrics-scraper
|
||||
|
||||
---
|
||||
|
||||
kind: Deployment
|
||||
apiVersion: apps/v1
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: dashboard-metrics-scraper
|
||||
name: dashboard-metrics-scraper
|
||||
namespace: kubernetes-dashboard
|
||||
spec:
|
||||
replicas: 1
|
||||
revisionHistoryLimit: 10
|
||||
selector:
|
||||
matchLabels:
|
||||
k8s-app: dashboard-metrics-scraper
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: dashboard-metrics-scraper
|
||||
spec:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
containers:
|
||||
- name: dashboard-metrics-scraper
|
||||
image: kubernetesui/metrics-scraper:v1.0.8
|
||||
ports:
|
||||
- containerPort: 8000
|
||||
protocol: TCP
|
||||
livenessProbe:
|
||||
httpGet:
|
||||
scheme: HTTP
|
||||
path: /
|
||||
port: 8000
|
||||
initialDelaySeconds: 30
|
||||
timeoutSeconds: 30
|
||||
volumeMounts:
|
||||
- mountPath: /tmp
|
||||
name: tmp-volume
|
||||
securityContext:
|
||||
allowPrivilegeEscalation: false
|
||||
readOnlyRootFilesystem: true
|
||||
runAsUser: 1001
|
||||
runAsGroup: 2001
|
||||
serviceAccountName: kubernetes-dashboard
|
||||
nodeSelector:
|
||||
"kubernetes.io/os": linux
|
||||
# Comment the following tolerations if Dashboard must not be deployed on master
|
||||
tolerations:
|
||||
- key: node-role.kubernetes.io/master
|
||||
effect: NoSchedule
|
||||
volumes:
|
||||
- name: tmp-volume
|
||||
emptyDir: {}
|
||||
```
|
||||
|
||||
#### 3.创建证书
|
||||
|
||||
```shell
|
||||
[root@k8s-master ~]# mkdir dashboard-certs
|
||||
[root@k8s-master ~]# cd dashboard-certs/
|
||||
#创建命名空间
|
||||
[root@k8s-master ~]# kubectl create namespace kubernetes-dashboard
|
||||
# 创建私钥key文件
|
||||
[root@k8s-master ~]# openssl genrsa -out dashboard.key 2048
|
||||
#证书请求
|
||||
[root@k8s-master ~]# openssl req -days 36000 -new -out dashboard.csr -key dashboard.key -subj '/CN=dashboard-cert'
|
||||
#自签证书
|
||||
[root@k8s-master ~]# openssl x509 -req -in dashboard.csr -signkey dashboard.key -out dashboard.crt
|
||||
#创建kubernetes-dashboard-certs对象
|
||||
[root@k8s-master ~]# kubectl create secret generic kubernetes-dashboard-certs --from-file=dashboard.key --from-file=dashboard.crt -n kubernetes-dashboard
|
||||
```
|
||||
|
||||
#### 4.创建管理员
|
||||
|
||||
```shell
|
||||
创建账户
|
||||
[root@k8s-master ~]# vim dashboard-admin.yaml
|
||||
apiVersion: v1
|
||||
kind: ServiceAccount
|
||||
metadata:
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
name: dashboard-admin
|
||||
namespace: kubernetes-dashboard
|
||||
#保存退出后执行
|
||||
[root@k8s-master ~]# kubectl create -f dashboard-admin.yaml
|
||||
为用户分配权限
|
||||
[root@k8s-master ~]# vim dashboard-admin-bind-cluster-role.yaml
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: ClusterRoleBinding
|
||||
metadata:
|
||||
name: dashboard-admin-bind-cluster-role
|
||||
labels:
|
||||
k8s-app: kubernetes-dashboard
|
||||
roleRef:
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
kind: ClusterRole
|
||||
name: cluster-admin
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: dashboard-admin
|
||||
namespace: kubernetes-dashboard
|
||||
#保存退出后执行
|
||||
[root@k8s-master ~]# kubectl create -f dashboard-admin-bind-cluster-role.yaml
|
||||
```
|
||||
|
||||
#### 5.安装 Dashboard
|
||||
|
||||
```shell
|
||||
[root@master dashboard-certs]# kubectl create -f dashboard.yaml
|
||||
```
|
||||
|
||||
#### 6.获取token
|
||||
|
||||
```shell
|
||||
[root@master dashboard-certs]# kubectl -n kubernetes-dashboard create token dashboard-admin
|
||||
eyJhbGciOiJSUzI1NiIsImtpZCI6InlBck13aTFMR2daR3htTmxSdG5XbGJjOVFLWmdMZlgzRU10TmJWRFNEMk0ifQ.eyJhdWQiOlsiaHR0cHM6Ly9rdWJlcm5ldGVzLmRlZmF1bHQuc3ZjLmNsdXN0ZXIubG9jYWwiXSwiZXhwIjoxNjYyMjE0MTA3LCJpYXQiOjE2NjIyMTA1MDcsImlzcyI6Imh0dHBzOi8va3ViZXJuZXRlcy5kZWZhdWx0LnN2Yy5jbHVzdGVyLmxvY2FsIiwia3ViZXJuZXRlcy5pbyI6eyJuYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsInNlcnZpY2VhY2NvdW50Ijp7Im5hbWUiOiJkYXNoYm9hcmQtYWRtaW4iLCJ1aWQiOiIwOTRhYWI2NC05NTkyLTRjYTctOWI3MS0yNDEwMmI5ODA1YjcifX0sIm5iZiI6MTY2MjIxMDUwNywic3ViIjoic3lzdGVtOnNlcnZpY2VhY2NvdW50Omt1YmVybmV0ZXMtZGFzaGJvYXJkOmRhc2hib2FyZC1hZG1pbiJ9.MQfc83l08PsAqmBHRzwgE_TsZGct0Sul1lM7Ks0ssf29DtXt22u9hHisvaLmQ64sNsvb_D7r47kDDTxZPbIJP_A2mBuHFqy_dnryUmqlTj7KFJm4PdObwiMTlnBch-v7HqxJKLuA6XXLxtpNrbLWqqG47Bc2kvvcF4BzSkiDhe-s5L0PS-WY753QjV0C9v63G8KJDxkQEGVC4PjqfXSclLi_jvIe4n3UqhUNHPl85JWgBhJHTTAei3Ztp7IMweztR_P30p6BiXEF0Kmcv8Nb7Xsk2dx5avYyiTRZTpq4pBkvAMKlCbXyKufh78mil_oNdaA8Q_AeFWFwgDx9UrGoFA
|
||||
```
|
||||
|
||||
#### 7.创建kubeconfig
|
||||
|
||||
```shell
|
||||
获取certificate-authority-data：
|
||||
[root@master ~]# CURRENT_CONTEXT=$(kubectl config current-context)
|
||||
[root@master ~]# CURRENT_CLUSTER=$(kubectl config view --raw -o=go-template='{{range .contexts}}{{if eq .name "'''${CURRENT_CONTEXT}'''"}}{{ index .context "cluster" }}{{end}}{{end}}')
|
||||
[root@master ~]# kubectl config view --raw -o=go-template='{{range .clusters}}{{if eq .name "'''${CURRENT_CLUSTER}'''"}}"{{with index .cluster "certificate-authority-data" }}{{.}}{{end}}"{{ end }}{{ end }}'
|
||||
"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"
|
||||
|
||||
[root@master ~]# cat config
|
||||
apiVersion: v1
|
||||
clusters:
|
||||
- cluster:
|
||||
certificate-authority-data: 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
|
||||
server: https://10.0.2.150:6443
|
||||
name: kubernetes
|
||||
contexts:
|
||||
- context:
|
||||
cluster: kubernetes
|
||||
user: dashboard-admin
|
||||
name: dashboard-admin@kubernetes
|
||||
current-context: dashboard-admin@kubernetes
|
||||
kind: Config
|
||||
preferences: {}
|
||||
users:
|
||||
- name: dashboard-admin
|
||||
user:
|
||||
token: eyJhbGciOiJSUzI1NiIsImtpZCI6InlBck13aTFMR2daR3htTmxSdG5XbGJjOVFLWmdMZlgzRU10TmJWRFNEMk0ifQ.eyJhdWQiOlsiaHR0cHM6Ly9rdWJlcm5ldGVzLmRlZmF1bHQuc3ZjLmNsdXN0ZXIubG9jYWwiXSwiZXhwIjoxNjYyMjE0MjcwLCJpYXQiOjE2NjIyMTA2NzAsImlzcyI6Imh0dHBzOi8va3ViZXJuZXRlcy5kZWZhdWx0LnN2Yy5jbHVzdGVyLmxvY2FsIiwia3ViZXJuZXRlcy5pbyI6eyJuYW1lc3BhY2UiOiJrdWJlcm5ldGVzLWRhc2hib2FyZCIsInNlcnZpY2VhY2NvdW50Ijp7Im5hbWUiOiJkYXNoYm9hcmQtYWRtaW4iLCJ1aWQiOiIwOTRhYWI2NC05NTkyLTRjYTctOWI3MS0yNDEwMmI5ODA1YjcifX0sIm5iZiI6MTY2MjIxMDY3MCwic3ViIjoic3lzdGVtOnNlcnZpY2VhY2NvdW50Omt1YmVybmV0ZXMtZGFzaGJvYXJkOmRhc2hib2FyZC1hZG1pbiJ9.bHK9jgpCAQIAxwurh05zzndo22hWEzoDnfFRS3VDWAfoD0YOsTF6RbHFSshn0Vm-Xv1sEIgmVkjgftP2Pq_saMs-WdgHfTLz2CjxWpkYV4WQcMs4WJq9Lx5SQeNxw9mEh8c085nnx368GWkENHSsldKP-O6YliWQAP8qpOiUWrJqhteVQi0GD7EYmOPlnKFZF2YKaROYFvn9P8JiCL8rRTZ5GUYIty9LRLkh3daFXj67krk4v3pNLqdHcKKwkv8vFN4hl6RbgA3nY
|
||||
```
|
||||
|
||||
|
|
@ -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