0. 给每个主机设置不同的主机名 sudo hostnamectl set-hostname node1 sudo reboot 1.双机互信 [root@node1 ~]# uname -n node1.shuishui.com [root@node1 ~]# sudo vi /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 192.168.80.135 node1 192.168.80.136 node2 [root@node1 ~]# ping node2 PING node2 (192.168.80.136) 56(84) bytes of data. 64 bytes from node2.shuishui.com (172.16.7.20): icmp_seq=1 ttl=64 time=1.41 ms ----------------------------------- 2.ssh免密码登录 [root@node1 ~]# ssh-keygen -t rsa -P '' # /生成空密码 直接回车即可 cd ~/.ssh/ #进.ssh文件： ls #查看文件是否有id_rsa(私钥),id_rsa.pub(公钥) cat ~/.ssh/id_rsa.pub >>authorized_keys #本机免密 cat ~/.ssh/id_rsa.pub >> known_hosts #把秘钥拷贝一份，追加到known_hosts文件中 ls #查看是否有known_hosts文件 ———————————————— ssh-copy-id -i id_rsa.pub root@对方主机名。 [root@node1 ~]# ssh-copy-id -f -i ~/.ssh/id_rsa.pub node2 #发送到node2 实质是向对方的authorized_keys 写入公钥, 向那个主机中写入,就可以免密登录那个主机 #添加资源 3 . pacemaker,corosync 搭建 sudo apt install pacemaker crmsh -y 需要在: corosync 中/etc/corosync/corosync.conf 添加nodelist 中添加节点 sudo crm primitive webip ocf:heartbeat:IPaddr parms ip="192.168.80.110" nic="ens33" cidr_netmask="" broadcast="192.168.80.255" primitive webserver systemd:cockpit op start timeout=10s op stop timeout=10s
