Ceph 手动部署
Posted ygtff
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规划集群
- 生产环境
- 至少3台物理机组成Ceph集群
- 双网卡
- 测试环境
- 1台主机也可以
- 单网卡也可以
准备工作
-
在所有Ceph节点上安装NTP
[root
@test
~]# yum install ntp
-
在所有Ceph节点上检查Iptables规则,确定打开6789端口,及
6800:7300
端口[root
@test
~]# iptables -A INPUT -i eth0 -p tcp -s
10.10
.
8.0
/
24
--dport
6789
-j ACCEPT
[root
@test
~]# iptables -A INPUT -i eth0 -p tcp -s
10.10
.
8.0
/
24
--dport
6800
:
7300
-j ACCEPT
-
关闭SELinux
[root
@test
~]# setenforce
0
获取Ceph包
-
添加源,在/etc/yum.repos.d/目录下创建ceph.repo
[root
@test
~]# cd /etc/yum.repos.d/
[root
@test
~]# touch ceph.repo
将下面的内容复制到ceph.repo中,但是注意将ceph-release字段替换为想要安装的ceph版本,这里安装的是jewel版本;
将distro替换为自己系统的版本,当前用的是el7
[ceph]
name=Ceph packages
for
$basearch
baseurl=http:
//download.ceph.com/rpm-ceph-release/distro/$basearch
enabled=
1
priority=
2
gpgcheck=
1
type=rpm-md
gpgkey=https:
//download.ceph.com/keys/release.asc
[ceph-noarch]
name=Ceph noarch packages
baseurl=http:
//download.ceph.com/rpm-ceph-release/distro/noarch
enabled=
1
priority=
2
gpgcheck=
1
type=rpm-md
gpgkey=https:
//download.ceph.com/keys/release.asc
[ceph-source]
name=Ceph source packages
baseurl=http:
//download.ceph.com/rpm-ceph-release/distro/SRPMS
enabled=
0
priority=
2
gpgcheck=
1
type=rpm-md
gpgkey=https:
//download.ceph.com/keys/release.asc
[root
@test
~]# cat ceph.repo
[ceph]
name=Ceph packages
for
$basearch
baseurl=http:
//download.ceph.com/rpm-jewel/el7/$basearch
enabled=
1
priority=
2
gpgcheck=
1
type=rpm-md
gpgkey=https:
//download.ceph.com/keys/release.asc
[ceph-noarch]
name=Ceph noarch packages
baseurl=http:
//download.ceph.com/rpm-jewel/el7/noarch
enabled=
1
priority=
2
gpgcheck=
1
type=rpm-md
gpgkey=https:
//download.ceph.com/keys/release.asc
[ceph-source]
name=Ceph source packages
baseurl=http:
//download.ceph.com/rpm-jewel/el7/SRPMS
enabled=
0
priority=
2
gpgcheck=
1
type=rpm-md
gpgkey=https:
//download.ceph.com/keys/release.asc
-
安装ceph包
[root
@test
~]# yum install ceph
[root
@test
~]# rpm -qa | grep ceph
ceph-mds-
10.2
.
10
-
0
.el7.x86_64
ceph-
10.2
.
10
-
0
.el7.x86_64
libcephfs1-
10.2
.
10
-
0
.el7.x86_64
python-cephfs-
10.2
.
10
-
0
.el7.x86_64
ceph-common-
10.2
.
10
-
0
.el7.x86_64
ceph-base-
10.2
.
10
-
0
.el7.x86_64
ceph-osd-
10.2
.
10
-
0
.el7.x86_64
ceph-mon-
10.2
.
10
-
0
.el7.x86_64
ceph-selinux-
10.2
.
10
-
0
.el7.x86_64
手动部署
配置Ceph
-
配置ceph.conf
[root
@test
~]# touch ceph.conf
-
生成Ceph Cluster ID
[root
@test
~]# uuidgen
1ea51317-3ccf-4a59-88ef-7d86f7ee1c3b
[root
@test
~]# echo
"fsid = 1ea51317-3ccf-4a59-88ef-7d86f7ee1c3b"
>> /etc/ceph/ceph.conf
[root
@test
~]# cat ceph.conf
[global]
fsid = 1ea51317-3ccf-4a59-88ef-7d86f7ee1c3b
部署Monitor
-
配置中添加初始Monitor hostname
[root
@test
~]# echo
"mon_initial_members = test"
>> /etc/ceph/ceph.conf
-
配置中添加初始Monitor IP地址
[root
@test
~]# echo
"mon_host = 10.10.8.19"
>> /etc/ceph/ceph.conf
-
生成Monitor的keyring
[root
@test
~]# ceph-authtool --create-keyring /tmp/ceph.mon.keyring --gen-key -n mon. --cap mon
'allow *'
-
生成client的keyring
[root
@test
~]# ceph-authtool --create-keyring /etc/ceph/ceph.client.admin.keyring --gen-key -n client.admin --set-uid=
0
--cap mon
'allow *'
--cap osd
'allow *'
--cap mds
'allow'
-
将client keyring加入到monitor keyring
[root
@test
~]# ceph-authtool /tmp/ceph.mon.keyring --
import
-keyring /etc/ceph/ceph.client.admin.keyring
-
生成monmap
[root
@test
~]# monmaptool --create --add test
10.10
.
8.19
--fsid 1ea51317-3ccf-4a59-88ef-7d86f7ee1c3b /tmp/monmap
-
创建Monitor目录
[root
@test
~]# mkdir /var/lib/ceph/mon/ceph-test
-
创建Monitor
[root
@test
~]# ceph-mon --mkfs -i test --monmap /tmp/monmap --keyring /tmp/ceph.mon.keyring
-
填充ceph.conf
将以下内容添加到ceph.conf中,注意替换相关字段
public
network = network[, network]
cluster network = network[, network]
auth cluster required = cephx
auth service required = cephx
auth client required = cephx
osd journal size = n
[root
@test
~]# cat /etc/ceph/ceph.conf
[global]
fsid = 1ea51317-3ccf-4a59-88ef-7d86f7ee1c3b
mon initial members = test
mon_host =
10.10
.
8.19
public_network =
10.10
.
8.0
/
24
cluster_network =
10.10
.
8.0
/
24
osd_journal_size =
2048
-
创建done文件
[root
@test
~]# touch /var/lib/ceph/mon/ceph-test/done
-
修改权限
[root
@test
~]# chown ceph:ceph /var/lib/ceph/mon/ceph-test/ -R
-
启动Monitor服务
[root
@test
~]# systemctl start ceph-mon
@test
.service
-
验证
[root
@test
~]# ceph -s
cluster 1ea51317-3ccf-4a59-88ef-7d86f7ee1c3b
health HEALTH_ERR
no osds
monmap e1:
1
mons at test=
10.10
.
8.19
:
6789
/
0
election epoch
3
, quorum
0
test
osdmap e1:
0
osds:
0
up,
0
in
flags sortbitwise,require_jewel_osds
pgmap v2:
64
pgs,
1
pools,
0
bytes data,
0
objects
0
kB used,
0
kB /
0
kB avail
64
creating
部署OSD
-
生成OSD的UUID
[root
@test
~]# uuidgen
8ff77024-27dd-423b-9f66-0a7cefcd3f53
-
创建OSD
[root
@test
~]# ceph osd create 8ff77024-27dd-423b-9f66-0a7cefcd3f53
0
-
创建OSD目录
[root
@test
~]# mkdir /var/lib/ceph/osd/ceph-
0
-
格式化OSD磁盘
[root
@test
~]# mkfs -t xfs /dev/vdb
-
挂载OSD磁盘
[root
@test
~]# mount /dev/vdb /var/lib/ceph/osd/ceph-
0
/
-
初始化OSD
[root
@test
~]# ceph-osd -i
0
--mkfs --mkkey --osd-uuid 8ff77024-27dd-423b-9f66-0a7cefcd3f53
-
注册OSD keyring
[root
@test
~]# ceph auth add osd.
0
osd
'allow *'
mon
'allow profile osd'
-i /var/lib/ceph/osd/ceph-
0
/keyring
-
添加host到CRUSH map
[root
@test
~]# ceph osd tree
ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY
-
1
0
root
default
0
0
osd.
0
down
0
1.0000
[root
@test
~]# ceph osd crush add-bucket test host
-
移动host到CRUSH map中的root
[root
@test
~]# ceph osd crush move test root=
default
-
添加OSD到CRUSH下的host
[root
@test
~]# ceph osd crush add osd.
0
1.0
host=test
-
修改权限
[root
@test
~]# chown ceph:ceph /var/lib/ceph/osd/ceph-
0
/ -R
-
启动OSD服务
[root
@test
~]# systemctl start ceph-osd
@0
.service
-
验证
[root
@test
~]# ceph -s
cluster 1ea51317-3ccf-4a59-88ef-7d86f7ee1c3b
health HEALTH_OK
monmap e1:
1
mons at test=
10.10
.
8.19
:
6789
/
0
election epoch
3
, quorum
0
test
osdmap e12:
1
osds:
1
up,
1
in
flags sortbitwise,require_jewel_osds
pgmap v16:
64
pgs,
1
pools,
0
bytes data,
0
objects
2080
MB used,
18389
MB /
20470
MB avail
64
active+clean
[root
@test
~]# ceph osd tree
ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY
-
1
1.00000
root
default
-
2
1.00000
host test
0
1.00000
osd.
0
up
1.00000
1.00000
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