Server Building and Management (9-1)

1. Server:

192.168.9.106 admin192.168.9.107 node1192.168.9.108 node2

2. Create Deph account and give sudo permission: (3 units)

创建账号[[email protected] ~]# mkdir /app/userhome -p[[email protected] ~]# useradd -d /app/userhome/deph deph[[email protected] ~]# passwd deph赋予sudo权限[[email protected] ~]# echo "deph ALL = (root) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/deph[[email protected] ~]# sudo chmod 0440 /etc/sudoers.d/deph修改sudo配置文件#此处有一个小坑，使用不同账户，执行执行脚本时候sudo经常会碰到 sudo: sorry, you must have a tty to run sudo这个情况，其实修改一下sudo的配置就好了，用vi /etc/sudoers (最好用visudo命令)，注释掉 Default requiretty 一行[[email protected] ~]# visudo#Default requiretty

3. Establish the trust of the admin host and Node nodes

#创建秘钥[[email protected] ~]# su - deph[[email protected] ~]$ ssh-keygen#分发公钥[[email protected] ~]$ ssh-copy-id [email protected][[email protected] ~]$ ssh-copy-id [email protected]#修改 管理节点的~/.ssh/config文件，ceph-deploy以便ceph-deploy能够以您创建的用户身份登录Ceph节点[[email protected] ~]$ vim .ssh/configHost adminHostname adminUser dephHost node1Hostname node1User dephHost node2Hostname node2User deph#修改权限[[email protected] ~]$ cd .ssh/[[email protected] .ssh]$ chmod 600 config#测试登录ssh[[email protected] ~]$ ssh node1[[email protected] ~]$ exitlogoutConnection to node1 closed.[[email protected] ~]$ ssh node2[[email protected] ~]$ exitlogoutConnection to node2 closed

4. Modify the Repo file

#移动原repo文件[[email protected] ~]$ exit[[email protected] ~]# cd /etc/yum.repos.d/[[email protected] yum.repos.d]# mkdir source[[email protected] yum.repos.d]# mv C* source/[[email protected] yum.repos.d]# mv e* source/#修改yum源，官网的yum源可能会很慢，下载aliyun源[[email protected] yum.repos.d]# curl http://mirrors.aliyun.com/repo/Centos-7.repo >/etc/yum.repos.d/CentOS-Base.repo [[email protected] yum.repos.d]# curl http://mirrors.aliyun.com/repo/epel-7.repo >/etc/yum.repos.d/epel.repo[[email protected] yum.repos.d]# sed -i ‘/aliyuncs/d‘ /etc/yum.repos.d/CentOS-Base.repo[[email protected] yum.repos.d]# sed -i ‘/aliyuncs/d‘ /etc/yum.repos.d/epel.repo [[email protected] yum.repos.d]# yum makecache

Server Building and Management (9-1)