【k8s】搭建步骤
搭建步骤
基础概念:https://www.cnblogs.com/sxdcgaq8080/p/10640879.html
=======================================环境准备阶段=========================================
1.新建三个虚拟机CentOS
参考地址:https://www.cnblogs.com/sxdcgaq8080/p/7466529.html
master 4G 50G
Node1 2G 40G
Node2 2G 40G
【需要注意的是,三台服务器上尽量不要已经安装了docker,否则会导致etcd安装失败,因为版本匹配的问题!!】
2.分别设置root账号 密码
3.分别启动网卡,获得IP,让本机的xshell可以连接上几台服务器
参考地址:https://www.cnblogs.com/sxdcgaq8080/p/9178926.html
4.分别修改静态主机名为
参考地址:https://www.cnblogs.com/sxdcgaq8080/p/10616441.html
192.168.92.131 k8s-master
192.168.92.132 k8s-node1
192.168.92.133 k8s-node2
分别在三台主机上输入命令
192.168.92.131输入:
- hostnamectl --static set-hostname k8s-master
192.168.92.132输入:
- hostnamectl --static set-hostname k8s-node1
192.168.92.133输入:
- hostnamectl --static set-hostname k8s-node2
5.分别在三台服务器的/etc/hosts文件中添加
- 192.168.92.131 k8s-master
- 192.168.92.131 etcd
- 192.168.92.131 registry
- 192.168.92.132 k8s-node1
- 192.168.92.133 k8s-node2
使用以下命令修改即可:
- vi /etc/hosts
6.分别关闭并禁用三台服务器的防火墙
参考地址:https://www.cnblogs.com/sxdcgaq8080/p/10032829.html
使用以下命令:【先停用,后禁用】
- systemctl stop firewalld.service
- systemctl disable firewalld.service
再使用查看命令查看,如果是如下效果,说明成功
- firewall-cmd --state
====================================主要安装步骤开始=====================================
一、主节点安装
主节点需要安装
etcd 存储数据中心
flannel k8s的一种网络方案
kubernetes 【包含:kube-api-server controllerManager Scheduler 】
1.etcd的安装
1.1 命令
- yum install -y etcd
1.2 修改配置文件
命令
- vi /etc/etcd/etcd.conf
修改内容为:
- # [member]
- ETCD_NAME=master
- ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
- #ETCD_WAL_DIR=""
- #ETCD_SNAPSHOT_COUNT=""
- #ETCD_HEARTBEAT_INTERVAL=""
- #ETCD_ELECTION_TIMEOUT=""
- #ETCD_LISTEN_PEER_URLS="http://localhost:2380"
- ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379,http://0.0.0.0:4001"
- #ETCD_MAX_SNAPSHOTS=""
- #ETCD_MAX_WALS=""
- #ETCD_CORS=""
- #
- #[cluster]
- #ETCD_INITIAL_ADVERTISE_PEER_URLS="http://localhost:2380"
- # if you use different ETCD_NAME (e.g. test), set ETCD_INITIAL_CLUSTER value for this name, i.e. "test=http://..."
- #ETCD_INITIAL_CLUSTER="default=http://localhost:2380"
- #ETCD_INITIAL_CLUSTER_STATE="new"
- #ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
- ETCD_ADVERTISE_CLIENT_URLS="http://etcd:2379,http://etcd:4001"
- #ETCD_DISCOVERY=""
- #ETCD_DISCOVERY_SRV=""
- #ETCD_DISCOVERY_FALLBACK="proxy"
- #ETCD_DISCOVERY_PROXY=""
- #ETCD_STRICT_RECONFIG_CHECK="false"
- #ETCD_AUTO_COMPACTION_RETENTION=""
- #ETCD_ENABLE_V2="true"
- #
- #[proxy]
- #ETCD_PROXY="off"
- #ETCD_PROXY_FAILURE_WAIT=""
- #ETCD_PROXY_REFRESH_INTERVAL=""
- #ETCD_PROXY_DIAL_TIMEOUT=""
- #ETCD_PROXY_WRITE_TIMEOUT=""
- #ETCD_PROXY_READ_TIMEOUT=""
- #
- #[security]
- #ETCD_CERT_FILE=""
- #ETCD_KEY_FILE=""
- #ETCD_CLIENT_CERT_AUTH="false"
- #ETCD_TRUSTED_CA_FILE=""
- #ETCD_AUTO_TLS="false"
- #ETCD_PEER_CERT_FILE=""
- #ETCD_PEER_KEY_FILE=""
- #ETCD_PEER_CLIENT_CERT_AUTH="false"
- #ETCD_PEER_TRUSTED_CA_FILE=""
- #ETCD_PEER_AUTO_TLS="false"
- #
- #[logging]
- #ETCD_DEBUG="false"
- # examples for -log-package-levels etcdserver=WARNING,security=DEBUG
- #ETCD_LOG_PACKAGE_LEVELS=""
- #
- #[profiling]
- #ETCD_ENABLE_PPROF="false"
- #ETCD_METRICS="basic"
- #
- #[auth]
- #ETCD_AUTH_TOKEN="simple"
1.3 启动etcd服务并验证
启动etcd服务命令
- systemctl start etcd
设置etcd服务自启动
- systemctl enable etcd
检查健康状况
- etcdctl -C http://etcd:2379 cluster-health
- etcdctl -C http://etcd:4001 cluster-health
2.安装flannel
2.1 安装命令
- yum install -y flannel
2.2 配置flannel
命令:
- vi /etc/sysconfig/flanneld
修改内容为:
- # Flanneld configuration options
- # etcd url location. Point this to the server where etcd runs
- FLANNEL_ETCD_ENDPOINTS="http://etcd:2379"
- # etcd config key. This is the configuration key that flannel queries
- # For address range assignment
- FLANNEL_ETCD_PREFIX="/atomic.io/network"
- # Any additional options that you want to pass
- #FLANNEL_OPTIONS=""
2.3 配置etcd中关于flannel的key
命令
- etcdctl mk /atomic.io/network/config '{ "Network": "10.0.0.0/16" }'
2.4 启动flannel服务,并设置开机自启
- systemctl start flanneld.service
- systemctl enable flanneld.service
3.安装kubernetes
3.1 安装命令
- yum install kubernetes
3.2安装后,需要修改配置
配置修改是为了下面这些需要运行的组件
kube-api-server
kuber-scheduler
kube-controller-manager
命令:
- vi /etc/kubernetes/apiserver
更改内容为:
- ###
- # kubernetes system config
- #
- # The following values are used to configure the kube-apiserver
- #
- # The address on the local server to listen to.
- KUBE_API_ADDRESS="--address=0.0.0.0"
- # The port on the local server to listen on.
- KUBE_API_PORT="--port=8080"
- # Port minions listen on
- KUBELET_PORT="--kubelet-port=10250"
- # Comma separated list of nodes in the etcd cluster
- KUBE_ETCD_SERVERS="--etcd-servers=http://etcd:2379"
- # Address range to use for services
- KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16"
- # default admission control policies
- # KUBE_ADMISSION_CONTROL="--admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota"
- KUBE_ADMISSION_CONTROL="--admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ResourceQuota"
- # Add your own!
- KUBE_API_ARGS=""
命令:
- vi /etc/kubernetes/config
更改内容为:
- ###
- # kubernetes system config
- #
- # The following values are used to configure various aspects of all
- # kubernetes services, including
- #
- # kube-apiserver.service
- # kube-controller-manager.service
- # kube-scheduler.service
- # kubelet.service
- # kube-proxy.service
- # logging to stderr means we get it in the systemd journal
- KUBE_LOGTOSTDERR="--logtostderr=true"
- # journal message level, is debug
- KUBE_LOG_LEVEL="--v=0"
- # Should this cluster be allowed to run privileged docker containers
- KUBE_ALLOW_PRIV="--allow-privileged=false"
- # How the controller-manager, scheduler, and proxy find the apiserver
- KUBE_MASTER="--master=http://k8s-master:8080"
3.3 分别启动三个组件服务,并且设置为自启动
- systemctl start kube-apiserver.service
- systemctl start kube-controller-manager.service
- systemctl start kube-scheduler.service
- systemctl enable kube-apiserver.service
- systemctl enable kube-controller-manager.service
- systemctl enable kube-scheduler.service
4.安装docker
参考地址:https://www.cnblogs.com/sxdcgaq8080/p/9178918.html
docker一定要最后安装,否则报错,解决方法:https://www.cnblogs.com/sxdcgaq8080/p/10622695.html
4.1 安装docker命令:
- yum install -y docker
4.2 启动docker服务命令:
- service docker start
4.3 docker加入自启动服务命令:
- chkconfig docker on
二.子节点安装
子节点安装需要安装以下组件:
flannel
kubernetes
docker
【注意,两个子节点都要按照下面步骤安装】
1.flannel安装
1.1 安装命令:
- yum install flannel
1.2 配置flannel
修改配置文件:
- vi /etc/sysconfig/flanneld
配置文件修改为下:
- # Flanneld configuration options
- # etcd url location. Point this to the server where etcd runs
- FLANNEL_ETCD_ENDPOINTS="http://etcd:2379"
- # etcd config key. This is the configuration key that flannel queries
- # For address range assignment
- FLANNEL_ETCD_PREFIX="/atomic.io/network"
- # Any additional options that you want to pass
- #FLANNEL_OPTIONS=""
1.3 启动flannel服务并设置自启动
- systemctl start flanneld.service
- systemctl enable flanneld.service
2.安装kubernetes
2.1 安装命令
- yum install kubernetes
2.2 配置文件修改
子节点上需要运行的kubernetes组件是:
kubelet
kubernetes-proxy
修改配置文件命令:
- vi /etc/kubernetes/config
两个子节点都修改配置文件内容为:
- ###
- # kubernetes system config
- #
- # The following values are used to configure various aspects of all
- # kubernetes services, including
- #
- # kube-apiserver.service
- # kube-controller-manager.service
- # kube-scheduler.service
- # kubelet.service
- # kube-proxy.service
- # logging to stderr means we get it in the systemd journal
- KUBE_LOGTOSTDERR="--logtostderr=true"
- # journal message level, is debug
- KUBE_LOG_LEVEL="--v=0"
- # Should this cluster be allowed to run privileged docker containers
- KUBE_ALLOW_PRIV="--allow-privileged=false"
- # How the controller-manager, scheduler, and proxy find the apiserver
- KUBE_MASTER="--master=http://k8s-master:8080"
修改配置文件命令:
- vi /etc/kubernetes/kubelet
此处的配置文件内容,需要注意区分【k8s-node1】和【k8s-node2】,分别在两个节点上的配置文件的内容:
【红色字体标注部分,需要自行修改】
- ###
- # kubernetes kubelet (minion) config
- # The address for the info server to serve on (set to 0.0.0.0 or "" for all interfaces)
- KUBELET_ADDRESS="--address=0.0.0.0"
- # The port for the info server to serve on
- # KUBELET_PORT="--port=10250"
- # You may leave this blank to use the actual hostname
- KUBELET_HOSTNAME="--hostname-override=k8s-node1"
- # location of the api-server
- KUBELET_API_SERVER="--api-servers=http://k8s-master:8080"
- # pod infrastructure container
- KUBELET_POD_INFRA_CONTAINER="--pod-infra-container-image=registry.access.redhat.com/rhel7/pod-infrastructure:latest"
- # Add your own!
- KUBELET_ARGS=""
2.3 分别启动两个子节点上的kubelet服务和kube-proxy服务,并设置自启动
- systemctl start kubelet.service
- systemctl start kube-proxy.service
- systemctl enable kubelet.service
- systemctl enable kube-proxy.service
3.docker安装
分别在两个子节点上执行如下命令:
3.1 安装docker命令:
- yum install -y docker
3.2 启动docker服务命令:
- service docker start
3.3 docker加入自启动服务命令:
- chkconfig docker on
================================================================
************************* 到此处,k8s集群搭建完成 ************************
================================================================
三.验证集群状态
1.master节点执行命令,查看端点信息
- kubectl get endpoints
2.master节点执行命令,查看集群信息
- kubectl cluster-info
3.master节点执行命令,获取节点信息
- kubectl get nodes
如上,即k8s集群良好!!!!
===========================================================================
参考地址:https://www.jianshu.com/p/7d1fb03b8925
【k8s】搭建步骤的更多相关文章
- Java Web 环境搭建步骤(超详细,包括前期安装步骤)
Java Web 环境搭建步骤 安装对应版本的JDK 配置环境变量 本人安装的路径是C盘,在path中加入C:\Program Files\Java\jdk1.8.0_65\bin 测试配置成功,cm ...
- Linux vagrant+virtualbox环境搭建步骤
Linux vagrant+virtualbox环境搭建步骤 Vagrant 是一款用来构建虚拟开发环境的工具,非常适合 php/python/ruby/java 这类语言开发 web 应用. 我们可 ...
- SSH三大框架合辑的搭建步骤
v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VM ...
- cocos2d-lua 3.5 android搭建步骤
cocos2d-lua 3.5 android搭建步骤 如何安装eclipse,jdk,android sdk,ndk这里都不说了,资料很多,而且以前用eclipse搭建cocos2d-x-c++的时 ...
- IIS HTTP文件服务器搭建步骤
利用IIS搭建HTTP文件服务器,可下载.上传(用户名验证) 1.右键网站,添加应用程序 2.物理路径,选择系统的目录配置,上一层 别名:CAPI3FileService 3.效果如下: 4.(以下步 ...
- [转]MonkeyRunner在Windows下的Eclipse开发环境搭建步骤(兼解决网上Jython配置出错的问题)
MonkeyRunner在Windows下的Eclipse开发环境搭建步骤(兼解决网上Jython配置出错的问题) 网上有一篇shangdong_chu网友写的文章介绍如何在Eclipse上配置M ...
- mysql 主从搭建步骤
mysql 主从搭建步骤 1:主库开启master端bin-log 2:主库创建备份用户 3:主库全备 4:从库导入全备数据 5:从库修改change master to信息 6:从库slave st ...
- Hadoop集群搭建步骤
实验性操作是在虚拟机里进行的,除了搭建hadoop本身的操作之外,遇到的其它问题总结如下: 1. 虚拟机挂载windows磁盘: 添加硬件,要保证该硬件此时没有被读写访问等,因为挂载后,该磁盘在宿主机 ...
- 在Android Studio上测试运行,Unity发布成Android包的环境搭建步骤
我用的是unity5.4.3版本,jdk是1.8.0_131版本,Android-SDK是r24.4.1版本,Android-NDK是r13b版本,作者是刚开始写博客,希望对在unity摸索的人有 ...
随机推荐
- Cling项目demo实现Android+DLNA实现
dlna多屏互动技术在Android和ios上面应用很广,所以自己为了学习,就官方提供的远吗进行了学习. http://4thline.org/projects/cling 由于是一个maven构建的 ...
- Java 连接远程Linux 服务器执行 shell 脚本查看 CPU、内存、硬盘信息
pom.xml jar 包支持 <dependency> <groupId>com.jcraft</groupId> <artifactId>jsch& ...
- (mysql)触发器、事件、事务、函数
1.事务操作原理:事务开启之后Start transaction,所有的操作都会临时保存到事务日志.只有在得到commit才会关闭,否则清空:2.设置回滚点: savepoint 回滚点名字: 回到 ...
- jquery-实用例子
一:jquery实现全选取消反选 3元运算:条件?真值:假值 <!DOCTYPE html> <html lang="en"> <head> & ...
- 洛谷P2613有理数取余
传送门 #include <iostream> #include <cstdio> #include <cstring> #include <algorith ...
- 和为k的最长子数组及其延伸
问题1: /** * 问题描述: * 给定一个无序数组arr,其中元素可正.可负.可0, * 求arr所有的子数组中正数与负数个数相等的最长子数组长度 * * 解题思路:对数组进行处理,正数为1,负数 ...
- hdu 6118度度熊的交易计划(费用流)
度度熊的交易计划 Time Limit: 12000/6000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total S ...
- T-SQL语句3
一.删除表 1.drop table语句 drop table database_name,schema_name,table_name 2.删除数据表 drop table dbo.t_delete ...
- rabbitmq route
AMQP AMQP协议是一个高级抽象层消息通信协议,RabbitMQ是AMQP协议的实现.它主要包括以下组件: 1.Server(broker): 接受客户端连接,实现AMQP消息队列和路由功能的进程 ...
- 实现C语言字符串操作的库函数 包括基本的字符串复制 字符串长度 字符串比较等多种函数(C代码)
头文件 "mystring.h" #ifndef _MYSTR_H #define _MYSTR_H #include <stdio.h> #include <s ...