Ubuntu安装Ceph

## 添加release key
$ wget -q -O- 'https://download.ceph.com/keys/release.asc' | sudo apt-key add -
## 添加ceph软件源
$ echo deb https://download.ceph.com/debian-{ceph-stable-release}/ $(lsb_release -sc) main | sudo tee /etc/apt/sources.list.d/ceph.list
## 更新软件源并安装
$ sudo apt update
$ sudo apt install ceph-deploy

## 配置各个结点的hosts文件
$ cat /etc/hosts 
## 配置各个结点的无密码登录
$ ssh-keygen      ##生成密码
$ ssh-copy-id <node_ip>
$ mkdir my_cluster
$ cd my_cluster 
$ ceph-deploy new <initial-monitor-nodes>   ## 创造集群，部署新的monitor结点
## 配置 Ceph.conf配置文件

## 安装ceph到各个结点
$ sudo ceph-deploy install <ceph-node1> <ceph-node2> 

## 获取密钥key,在my_cluster目录下生成几个key 
$ ceph-deploy mon create-initial
## 初始化磁盘
$ sudo ceph-deploy disk zap <osd-server-name>:<disk-name>
## 准备OSD 
$ ceph-deploy osd prepare <node_name>:<data-disk>:<journal-disk>
## 激活OSD 
$ ceph-deploy osd activate <node_name>:<data_disk_partition>
## 分发key 
$ ceph-deploy admin <admin-node> <ceph-node
## 赋予权限
$ sudo chmod +r /etc/ceph/ceph.client.admin.keyring
## 查看集群状态
$ ceph health