k8s系列-07-kubespray方案基础环境准备
主旨
| hostname |
IP地址 |
角色 |
cpu |
memory |
| node-1 |
192.168.112.130 | master |
>=2 |
>=2 |
| node-2 |
192.168.112.131 | master |
>=2 |
>=2 |
| node-3 |
192.168.112.132 | worker |
>=2 |
>=2 |
修改主机名
192.168.112.130 操作，操作完毕之后需要重新连接：
[yunweijia@localhost ~]$ sudo vim /etc/hostname# 清空文件原内容，写入下面信息node-1[yunweijia@localhost ~]$ sudo hostname node-1[yunweijia@localhost ~]$ bash[yunweijia@node-1 ~]$
192.168.112.131 操作：
[yunweijia@localhost ~]$ sudo vim /etc/hostname# 清空文件原内容，写入下面信息node-2[yunweijia@localhost ~]$ sudo hostname node-2[yunweijia@localhost ~]$ bash[yunweijia@node-2 ~]$
192.168.112.132 操作，操作完毕之后需要重新连接：
[yunweijia@localhost ~]$ sudo vim /etc/hostname# 清空文件原内容，写入下面信息node-3[yunweijia@localhost ~]$ sudo hostname node-3[yunweijia@localhost ~]$ bash[yunweijia@node-3 ~]$
关闭安全策略
[yunweijia@node-1 ~]$ sudo systemctl stop firewalld.service[yunweijia@node-1 ~]$ sudo systemctl disable firewalld.service
[yunweijia@node-1 ~]$ sudo setenforce 0[yunweijia@node-1 ~]$ sudo vim /etc/selinux/configSELINUX=enforcing # 该行注释掉，新建行内容如下：SELINUX=disabled[yunweijia@node-1 ~]$
[yunweijia@node-1 ~]$ su root密码：[root@node-1 yunweijia]# iptables -F && iptables -X && iptables -F -t nat && iptables -X -t nat && iptables -P FORWARD ACCEPT[root@node-1 yunweijia]# exitexit[yunweijia@node-1 ~]$
[yunweijia@node-1 ~]$ sudo service dnsmasq stopRedirecting to /bin/systemctl stop dnsmasq.service[yunweijia@node-1 ~]$ sudo systemctl disable dnsmasq[yunweijia@node-1 ~]$
以下步骤，要在所有的服务器上进行操作，操作内容一致，只写一遍了。
[yunweijia@node-1 ~]$ sudo vim /etc/sysctl.d/kubernetes.confnet.bridge.bridge-nf-call-ip6tables = 1net.bridge.bridge-nf-call-iptables = 1net.ipv4.ip_nonlocal_bind = 1net.ipv4.ip_forward = 1vm.swappiness = 0vm.overcommit_memory = 1[yunweijia@node-1 ~]$ sudo sysctl -p /etc/sysctl.d/kubernetes.conf
[]$ sudo yum remove -y docker*[]$ sudo rm -f /etc/docker/daemon.json