ceph-deploy部署

ip地址          主机名        操作系统        磁盘    
172.21.16.8　　 ceph1       centos7.6      3*10G
172.21.16.10　　ceph2       centos7.6　　   3*10G
172.21.16.11　　ceph3       centos7.6      3*10G
确保三台机器防火墙和selinux全部关闭

[cephadmin@ceph1 ~]$ yum -y install ntpdate ntp 
[cephadmin@ceph1 ~]$ ntpdate cn.ntp.org.cn 
[cephadmin@ceph1 ~]$ systemctl restart ntpd && systemctl enable ntpd
三台机器都要执行

[cephadmin@ceph1 ~]$ useradd cephadmin 
[cephadmin@ceph1 ~]$ echo "cephadmin" | passwd --stdin cephadmin 
[cephadmin@ceph1 ~]$ echo "cephadmin ALL = (root) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/cephadmin 
[cephadmin@ceph1 ~]$ chmod 0440 /etc/sudoers.d/cephadmin

第一台机器
[cephadmin@ceph1 ~]$ hostnamectl set-hostname ceph1 
第二台机器
[cephadmin@ceph1 ~]$ hostnamectl set-hostname ceph2 
第三台机器
[cephadmin@ceph1 ~]$ hostnamectl set-hostname ceph3

[cephadmin@ceph1 ~]$ cat /etc/hosts
172.21.0.8  ceph1
172.21.0.10 ceph2
172.21.0.11 ceph3

[cephadmin@ceph1 ~]$ ssh-keygen
[cephadmin@ceph1 ~]$ ssh-copy-id cephadmin@ceph1 
[cephadmin@ceph1 ~]$ ssh-copy-id cephadmin@ceph2 
[cephadmin@ceph1 ~]$ ssh-copy-id cephadmin@ceph3

[cephadmin@ceph1 ~]$sudo yum install -y ceph ceph-radosgw

[cephadmin@ceph1 ~]$ sudo yum install -y ceph-deploy python-pip

[cephadmin@ceph1 ~]$mkdir my-cluster 
[cephadmin@ceph1 ~]$cd my-cluster 
[cephadmin@ceph1 ~]$ceph-deploy new ceph1 ceph2 ceph3
[cephadmin@ceph1 ~]$vim ceph.conf 
[global] 
..... 
public network = 172.21.16.0/20
cluster network = 172.21.16.0/20

[cephadmin@ceph1 ~]$ ceph-deploy mon create-initial #/配置初始 monitors并收集所有密钥
[cephadmin@ceph1 ~]$ ceph-deploy admin ceph1 ceph2 ceph3 #把配置信息拷贝到各节点
[cephadmin@ceph1 ~]$sudo chown -R cephadmin:cephadmin /etc/ceph #三台机器都需要执行
[cephadmin@ceph1 ~]$ ceph -s 
  cluster:
    id:     d64f9fbf-b948-4e50-84f0-b30073161ef6
    health: HEALTH_OK
 
  services:
    mon: 3 daemons, quorum ceph1,ceph2,ceph3
    mgr: ceph1(active), standbys: ceph2, ceph3
    osd: 9 osds: 9 up, 9 in
 
  data:
    pools:   0 pools, 0 pgs
    objects: 0 objects, 0B
    usage:   9.04GiB used, 80.9GiB / 90.0GiB avail
    pgs:     

for dev in /dev/vdb /dev/vdc /dev/vdd;do ceph-deploy disk zap ceph1 $dev;ceph-deploy osd create ceph1 --data $dev;ceph-deploy disk zap ceph2 $dev;ceph-deploy osd create ceph2 --data $dev;ceph-deploy disk zap ceph3 $dev;ceph-deploy osd create ceph3 --data $dev; done

 ceph-deploy mgr create ceph1 ceph2 ceph3

[cephadmin@ceph1 ~]$ ceph mgr module enable dashboard