Ubuntu14.04 CEPH 集群搭建（一）

 

(备注：此一共用到4台机器。分别命名为ceph-admin ,ceph0,ceph1,ceph2.其中ceph-admin作为deploy 机器用于部署，ceph-admin,ceph0作为mon,ceph1，作为OSD，ceph2作为元数据服务器）

0.配置IP/主机名

    vi /etc/network/interfaces

 改eth0配置为

auto eth0

iface eth0 inet static

address 192.168.8.235 (根据具体情况填写)

netmask 255.255.255.0 (根据具体情况填写)

gateway 192.168.8.1   (根据具体情况填写)

dns-nameservers 192.168.1.6, 8.8.8.8 (根据具体情况填写)

配置完成后重启网络

#/etc/init.d/networking restart

主机配置：

#vi /etc/hostname 改为指定的主机名，我这里命名为ceph0

#vi /etc/hosts 修改 127.0.1.1 后的主机名为ceph0,

192.168.8.235  ceph0

重启机器

 

 

1.在每台机器上创建ceph用户，

udo useradd -d /home/ceph -m ceph
sudo passwd ceph

 

2.在每个Ceph节点中为用户增加 root 权限

echo "ceph ALL = (root) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/ceph
sudo chmod 0440 /etc/sudoers.d/ceph

 

3.安装ssh服务器

sudo yum install openssh-server

 

4.用无密码的SSH连接到每个Ceph节点来配置你的 ceph-deploy 管理节点. 保留密码为空:

ssh-keygen
Generating public/private key pair.
Enter file in which to save the key (/ceph-client/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /ceph-client/.ssh/id_rsa.
Your public key has been saved in /ceph-client/.ssh/id_rsa.pub.

 

5.复制秘钥至每个Ceph节点.

ssh-copy-id ceph0@ceph-server

  ssh-copy-id ceph1@ceph-server

 

6.修改你的ceph-deploy 管理节点的 ~/.ssh/config 文件使它能像你创建的用户(比如, ceph)一样记录至Ceph节点 .

Host ceph-server
Hostname ceph-server.fqdn-or-ip-address.com
User ceph

 

7.更新你的仓库并安装ceph-deploy  (ceph-admin节点上安装ceph-deploy，用于部署)

sudo apt-get update && sudo apt-get install ceph-deploy