Ubuntu安裝Ceph

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

## 配置各個結點的hosts文件
$ cat /etc/hosts 
## 配置各個結點的無密碼登錄
$ ssh-keygen      ##生成密碼
$ ssh-copy-id <node_ip>
$ mkdir my_cluster
$ cd my_cluster 
$ ceph-deploy new <initial-monitor-nodes>   ## 創造集羣，部署新的monitor結點
## 配置 Ceph.conf配置文件

## 安裝ceph到各個結點
$ sudo ceph-deploy install <ceph-node1> <ceph-node2> 

## 獲取密鑰key,在my_cluster目錄下生成幾個key 
$ ceph-deploy mon create-initial
## 初始化磁盤
$ sudo ceph-deploy disk zap <osd-server-name>:<disk-name>
## 準備OSD 
$ ceph-deploy osd prepare <node_name>:<data-disk>:<journal-disk>
## 激活OSD 
$ ceph-deploy osd activate <node_name>:<data_disk_partition>
## 分發key 
$ ceph-deploy admin <admin-node> <ceph-node
## 賦予權限
$ sudo chmod +r /etc/ceph/ceph.client.admin.keyring
## 查看集羣狀態
$ ceph health