1.虚拟机筹备
三台centos8虚拟机采纳nat形式连贯外网所以虚拟机固定ip地址1.1 nat形式连贯外网
此处不介绍1.2 虚拟机应用固定ip地址
留神点1：
vmware外部网络的设置，抉择nat的vmware8网卡后，不勾选dhcp服务
留神点2：
虚拟机外部设置文件/etc/sysconfig/network-script/ifcfg-ens##
批改以下值：
BOOTPROTO=staticONBOOT=yesIPADDR=192.168.*.*NETMASK=255.255.*.*GATEWAY=192.168.*.*DNS1=114.114.114.114控制台执行
nmcli c reload1.3 创立普通用户
useradd ###(用户名)usermod -aG docker ###(用户名)passwd ###vi /etc/sudoers找到这一行："root ALL=(ALL) ALL"，在上面增加"xxx ALL=(ALL) ALL"(这里的xxx是你的用户名)2.虚拟机环境筹备
2.1 配置hosts文件
批改/etc/hosts文件，退出以下
IP name2.2docker装置
yum config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repoyum install -y --setopt=obsoletes=0 docker-ce-18.06.1.ce-3.el7systemctl start dockersystemctl enable docker2.3更换docker仓库
# 此处批改为中科大仓库vi /etc/docker/daemon.json"registry-mirrors": ["https://docker.mirrors.ustc.edu.cn"]2.4 敞开selinux和swap
sed -i '/^SELINUX/s/enforcing/disabled/' /etc/selinux/configsed -i 's/.*swap.*/#&/' /etc/fstab2.5敞开防火墙
systemctl stop firewalld.servicesystemctl disable firewalld.service2.6同步时区
timedatectl set-timezone Asia/Shanghai3集群装置
3.1 下载rke
wget https://github.com/rancher/rke/releases/download/v1.1.4/rke_linux-amd64chmod +x rke_linux_amd643.2 开始配置cluster.yaml
执行 ./rke_linux_amd64 config[+] Cluster Level SSH Private Key Path [~/.ssh/id_rsa]: [+] Number of Hosts [1]: 主机数量[+] SSH Address of host (1) [none]: ip地址[+] SSH Port of host (1) [22]: 端口[+] SSH Private Key Path of host (ip地址) [none]: [-] You have entered empty SSH key path, trying fetch from SSH key parameter[+] SSH Private Key of host (ip地址) [none]: [-] You have entered empty SSH key, defaulting to cluster level SSH key: ~/.ssh/id_rsa[+] SSH User of host (ip地址) [ubuntu]: 用户名[+] Is host (ip地址) a Control Plane host (y/n)? [y]: 管制立体[+] Is host (ip地址) a Worker host (y/n)? [n]: 工作节点[+] Is host (ip地址) an etcd host (y/n)? [n]: etcd服务[+] Override Hostname of host (ip地址) [none]: 重命名节点[+] Internal IP of host (ip地址) [none]: [+] Docker socket path on host (ip地址) [/var/run/docker.sock]: [+] Network Plugin Type (flannel, calico, weave, canal) [canal]: calico(网络插件抉择)[+] Authentication Strategy [x509]: [+] Authorization Mode (rbac, none) [rbac]: [+] Kubernetes Docker image [rancher/hyperkube:v1.18.6-rancher1]: [+] Cluster domain [cluster.local]: [+] Service Cluster IP Range [10.43.0.0/16]: [+] Enable PodSecurityPolicy [n]: [+] Cluster Network CIDR [10.42.0.0/16]: [+] Cluster DNS Service IP [10.43.0.10]: [+] Add addon manifest URLs or YAML files [no]:3.3 初始化集群至实现
./rke_linux_amd64 upmv kube_config_cluster.yml .kube/config3.4 装置kubectl工具
cat > /etc/yum.repos.d/kubernetes.repo << END[kubernetes]name = kubernetesbaseurl = https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64gpgchek = 1gpgkey = https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpgenable = 1ENDyum install kubectl-1.18.6