基于docker的ceph集群
ceph部署环境
| 主机名称 | 内网IP |
|---|---|
| node01 | 192.168.0.1 |
| node02 | 192.168.0.2 |
| node03 | 192.168.0.3 |
虚机开启selinux：
vi /etc/selinux/config设置：
SELINUX=enforcing设置目录权限：
mkdir -p /etc/ceph
mkdir -p /var/lib/ceph
chcon -Rt svirt_sandbox_file_t /etc/ceph
chcon -Rt svirt_sandbox_file_t /var/lib/ceph如果系统只有一个数据盘，并且数据盘已经分区，需要对数据盘进行分区删除，并进行格式化处理。
格式化命令如下：
mkfs.ext4 /dev/vdb下面我们采用docker进行安装，ceph/daemon的版本为tag-build-master-jewel-centos-7。
node01启动monitor
启动monitor：
docker run -d --name=mon --net=host \
--restart=always \
-v /etc/ceph:/etc/ceph \
-v /var/lib/ceph:/var/lib/ceph \
-e MON_IP=192.168.0.1 \
-e CEPH_PUBLIC_NETWORK=192.168.0.0/24 \
ceph/daemon:tag-build-master-jewel-centos-7 mon查看ceph状态：
docker exec b3cc55582498 ceph -s执行结果：
# docker exec b3cc55582498 ceph -s
cluster 05527e2d-5d80-4c85-8d35-7dcddafa197e
health HEALTH_ERR
no osds
monmap e1: 1 mons at {iZbp1isotv99f45cg37lxgZ=192.168.0.1:6789/0}
election epoch 3, quorum 0 iZbp1isotv99f45cg37lxgZ
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拷贝node01配置文件到其他机器
scp -r /etc/ceph/ceph* root@192.168.0.2:/etc/ceph/
scp -r /var/lib/ceph/bootstrap-* root@192.168.0.2:/var/lib/ceph/
scp -r /etc/ceph/ceph* root@192.168.0.3:/etc/ceph/
scp -r /var/lib/ceph/bootstrap-* root@192.168.0.3:/var/lib/ceph/其他节点启动monitor
在node02上执行：
docker run -d --name=mon --net=host \
--restart=always \
-v /etc/ceph:/etc/ceph \
-v /var/lib/ceph:/var/lib/ceph \
-e MON_IP=192.168.0.2 \
-e CEPH_PUBLIC_NETWORK=192.168.0.0/24 \
ceph/daemon:tag-build-master-jewel-centos-7 mon在node03上执行：
docker run -d --name=mon --net=host \
--restart=always \
-v /etc/ceph:/etc/ceph \
-v /var/lib/ceph:/var/lib/ceph \
-e MON_IP=192.168.0.3 \
-e CEPH_PUBLIC_NETWORK=192.168.0.0/24 \
ceph/daemon:tag-build-master-jewel-centos-7 mon查看ceph状态：
docker exec b3cc55582498 ceph -s执行结果：
#docker exec b3cc55582498 ceph -s
cluster 230a93b6-3876-4d69-bffe-c0c054c49653
health HEALTH_ERR
no osds
monmap e3: 3 mons at {iZbp1isotv99f45cg37lxfZ=192.168.0.1:6789/0,iZbp1isotv99f45cg37lxiZ=192.168.0.2:6789/0,iZbp1isotv99f45cg37lxjZ=192.168.0.3:6789/0}
election epoch 6, quorum 0,1,2 iZbp1isotv99f45cg37lxjZ,iZbp1isotv99f45cg37lxfZ,iZbp1isotv99f45cg37lxiZ
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在所有节点部署osd
docker run -d --name=osd1 --net=host \
--restart=always \
-v /etc/ceph:/etc/ceph \
-v /var/lib/ceph/:/var/lib/ceph/ \
-v /dev/:/dev/ --privileged=true \
-e OSD_FORCE_ZAP=1 \
-e OSD_DEVICE=/dev/vdb \
ceph/daemon:tag-build-master-jewel-centos-7 osd_ceph_disk查看ceph状态：
docker exec b3cc55582498 ceph -s执行结果：
# docker exec b3cc55582498 ceph -s
cluster 230a93b6-3876-4d69-bffe-c0c054c49653
health HEALTH_ERR
37 pgs are stuck inactive for more than 300 seconds
27 pgs degraded
3 pgs peering
37 pgs stuck inactive
64 pgs stuck unclean
27 pgs undersized
monmap e3: 3 mons at {iZbp1isotv99f45cg37lxfZ=192.168.0.1:6789/0,iZbp1isotv99f45cg37lxiZ=192.168.0.2:6789/0,iZbp1isotv99f45cg37lxjZ=192.168.0.3:6789/0}
election epoch 6, quorum 0,1,2 iZbp1isotv99f45cg37lxjZ,iZbp1isotv99f45cg37lxfZ,iZbp1isotv99f45cg37lxiZ
osdmap e10: 3 osds: 3 up, 3 in
flags sortbitwise,require_jewel_osds
pgmap v11: 64 pgs, 1 pools, 0 bytes data, 0 objects
35320 kB used, 699 GB / 699 GB avail
34 creating
27 active+undersized+degraded
3 creating+peering在node01部署mds
docker run -d --name=mds --net=host \
--restart=always \
-v /etc/ceph:/etc/ceph \
-v /var/lib/ceph/:/var/lib/ceph/ \
-e CEPHFS_CREATE=1 \
ceph/daemon:tag-build-master-jewel-centos-7 mds
查看ceph状态：
docker exec b3cc55582498 ceph -s执行结果：
# docker exec b3cc55582498 ceph -s
cluster 230a93b6-3876-4d69-bffe-c0c054c49653
health HEALTH_WARN
4 pgs peering
monmap e3: 3 mons at {iZbp1isotv99f45cg37lxfZ=10.135.204.114:6789/0,iZbp1isotv99f45cg37lxiZ=10.135.204.132:6789/0,iZbp1isotv99f45cg37lxjZ=10.135.204.107:6789/0}
election epoch 6, quorum 0,1,2 iZbp1isotv99f45cg37lxjZ,iZbp1isotv99f45cg37lxfZ,iZbp1isotv99f45cg37lxiZ
fsmap e4: 1/1/1 up {0=iZbp1isotv99f45cg37lxjZ=up:creating}
osdmap e13: 3 osds: 3 up, 3 in
flags sortbitwise,require_jewel_osds
pgmap v20: 80 pgs, 3 pools, 0 bytes data, 0 objects
100 MB used, 2098 GB / 2098 GB avail
64 active+clean
12 creating
4 creating+peering在node01部署gateway
docker run -d --name=rgw -p 80:80 \
--restart=always \
-v /etc/ceph:/etc/ceph -v \
/var/lib/ceph/:/var/lib/ceph/ \
ceph/daemon:tag-build-master-jewel-centos-7 rgw
查看ceph状态：
docker exec b3cc55582498 ceph -s执行结果：
# docker exec b3cc55582498 ceph -s
cluster 230a93b6-3876-4d69-bffe-c0c054c49653
health HEALTH_OK
monmap e3: 3 mons at {iZbp1isotv99f45cg37lxfZ=10.135.204.114:6789/0,iZbp1isotv99f45cg37lxiZ=10.135.204.132:6789/0,iZbp1isotv99f45cg37lxjZ=10.135.204.107:6789/0}
election epoch 6, quorum 0,1,2 iZbp1isotv99f45cg37lxjZ,iZbp1isotv99f45cg37lxfZ,iZbp1isotv99f45cg37lxiZ
fsmap e5: 1/1/1 up {0=iZbp1isotv99f45cg37lxjZ=up:active}
osdmap e14: 3 osds: 3 up, 3 in
flags sortbitwise,require_jewel_osds
pgmap v26: 88 pgs, 4 pools, 2068 bytes data, 20 objects
101 MB used, 2098 GB / 2098 GB avail
80 active+clean
8 creating参考
https://judexzhu.gitbooks.io/ceph-docker-deployment/content/Ceph-Docker%20Deployment.html
http://www.jianshu.com/p/f08ed7287416
https://v.qq.com/x/page/h0191o7rpfe.html