GlusterFS作为OpenStack后端存储

创建3个卷images、volumes、instances分别对接openstack的glance、cinder、nova组件

images卷用于存放OpenStack镜像

volumes卷用于存放OpenStack硬盘

instances卷用于存放OpenStack云主机

1、创建卷

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gluster volume create images replica 3 \

controller1:/data/brick1/image  controller2:/data/brick1/image  compute01:/data/brick1/image \

controller1:/data/brick2/image  controller2:/data/brick2/image  compute01:/data/brick2/image \

controller1:/data/brick3/image  controller2:/data/brick3/image  compute01:/data/brick3/image

  
gluster volume create volumes replica 3 \

controller1:/data/brick1/volume  controller2:/data/brick1/volume  compute01:/data/brick1/volume \

controller1:/data/brick2/volume  controller2:/data/brick2/volume  compute01:/data/brick2/volume \

controller1:/data/brick3/volume  controller2:/data/brick3/volume  compute01:/data/brick3/volume

  
gluster volume create instances replica 3 \

controller1:/data/brick1/instance  controller2:/data/brick1/instance  compute01:/data/brick1/instance \

controller1:/data/brick2/instance  controller2:/data/brick2/instance  compute01:/data/brick2/instance \

controller1:/data/brick3/instance  controller2:/data/brick3/instance  compute01:/data/brick3/instance

2、启动卷

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gluster volume start images
gluster volume start volumes
gluster volume start instances

3、添加images、instances到fstab自动挂载

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controller1:/images   /var/lib/glance/images   glusterfs  defaults,_netdev,backupvolfile-server=controller2,backupvolfile-server=compute01   0 0

controller1:/instances   /var/lib/nova/instances   glusterfs  defaults,_netdev,backupvolfile-server=controller2,backupvolfile-server=compute01   0 0

mount -a 挂载

上述挂载方式使用backupvolfile起到了高可用性，避免单点故障

nova、glance节点要挂载到instances、images的相关目录，根据实际服务部署情况调整，cinder不太一样，下边会说到。

4、设置相关权限

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chown -R nova.nova /var/lib/nova/instances

chown -R glance.glance/var/lib/glance/images

chown -R nova:nova /data/brick1/instance

chown -R nova:nova /data/brick2/instance

chown -R nova:nova /data/brick3/instance

chown -R glance:glance /data/brick1/image

chown -R glance:glance /data/brick2/image

chown -R glance:glance /data/brick3/image

chown -R cinder:cinder /data/brick1/volume

chown -R cinder:cinder /data/brick2/volume

chown -R cinder:cinder /data/brick3/volume

nova要有instance、cinder要有volume、glance要有image的读写权限，根据节点上的服务，给相应的权限。

5、配置cinder

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cp /etc/cinder/cinder.conf{,.bak}

openstack-config --set/etc/cinder/cinder.conf DEFAULT volume_drivercinder.volume.drivers.glusterfs.GlusterfsDriver

openstack-config --set/etc/cinder/cinder.conf DEFAULT glusterfs_shares_config /etc/cinder/shares.conf

openstack-config --set /etc/cinder/cinder.confDEFAULT glusterfs_mount_point_base /var/lib/cinder/volumes

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touch /etc/cinder/shares.conf

vim /etc/cinder/shares.conf  #添加以下内容

controller1:/volumes

controller2:/volumes

compute01:/volumes

#设置相关权限

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chown -R cinder.cinder/etc/cinder/shares.conf

chown -R cinder:cinder /var/lib/cinder/*

6、重启openstack相关服务

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openstack-service restart nova
openstack-service restart cinder
openstack-service restart glance

7、验证cinder

本文转自Jacken_yang 51CTO博客，原文链接：http://blog.51cto.com/linuxnote/1826501，如需转载请自行联系原作者

GlusterFS作为OpenStack后端存储

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