每个服务都需要做的如下：
配置服务的时候，步骤如下：
- 创建服务同名的用户（除了keystone），添加到services这个project和admin这个role
- 创建services和endpoint
- 修改配置文件：需要指定keystone和rabbitmq的地址
- 更新数据库（除了swift）
swift是用不到上面的数据库的。
安装swift软件包
Memcached 是一个高性能的分布式内存对象缓存系统，用于动态Web应用以减轻数据库负载。它通过在内存中缓存数据和对象来减少读取数据库的次数，从而提高动态、数据库驱动网站的速度。
创建服务同名用户：
# openstack user create swift --password redhat
添加swift用户admin权限：
# openstack role add --user swift --project services admin
创建服务：
# openstack service create --name swift object-store
创建endpoint：
openstack endpoint create --region RegionOne --publicurl 'http://192.168.179.140:8080/v1/AUTH_%(tenant_id)s' --internalurl 'http://192.168.179.140:8080/v1/AUTH_%(tenant_id)s' --adminurl 'http://192.168.179.140:8080' 32103224f7054cb1a75e57f80c7037d5
修改配置文件：
/etc/swift/
配置的服务：
服务介绍：
代理服务器 proxy server
负责swift各个组件之间的通信
接收用户的请求
存储服务器：
容器服务
对象服务
账户服务
一致性服务：
auditor 定期检查zone1和zone2 之间数据有没有问题，是否损坏
replicate 复制，修复数据
update 如果修复没有成功，就会等一段时间再次修复，这个功能是由update来完成的
修改配置文件：
随机生成一个值
准备底层磁盘：
[root@osp3 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 100G 0 disk
©À©¤sda1 8:1 0 60G 0 part /
©¸©¤sda2 8:2 0 4G 0 part [SWAP]
sr0 11:0 1 3.8G 0 rom /iso
[root@osp3 ~]# fdisk /dev/sda
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 107.4 GB, 107374182400 bytes, 209715200 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x00062bf0
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 125831167 62914560 83 Linux
/dev/sda2 125831168 134219775 4194304 82 Linux swap / Solaris
Command (m for help): n
Partition type:
p primary (2 primary, 0 extended, 2 free)
e extended
Select (default p): p
Partition number (3,4, default 3):
First sector (134219776-209715199, default 134219776):
Using default value 134219776
Last sector, +sectors or +size{K,M,G} (134219776-209715199, default 209715199): +15G
Partition 3 of type Linux and of size 15 GiB is set
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
[root@osp3 ~]# partprobe
Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0 has been opened read-only.
Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0 has been opened read-only.
Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0 has been opened read-only.
[root@osp3 ~]#
创建逻辑卷：
[root@osp3 ~]# pvs
[root@osp3 ~]# pvcreate /dev/sda3
Physical volume "/dev/sda3" successfully created
[root@osp3 ~]# vgcreate vg0 /dev/sda3
Volume group "vg0" successfully created
[root@osp3 ~]# pvs
PV VG Fmt Attr PSize PFree
/dev/sda3 vg0 lvm2 a-- 15.00g 15.00g
[root@osp3 ~]# vgs
VG #PV #LV #SN Attr VSize VFree
vg0 1 0 0 wz--n- 15.00g 15.00g
[root@osp3 ~]# lvs
[root@osp3 ~]# lvcreate -L 2G -n lv1 vg0
Logical volume "lv1" created.
[root@osp3 ~]# lvcreate -L 2G -n lv2 vg0
Logical volume "lv2" created.
[root@osp3 ~]# lvcreate -L 2G -n lv3 vg0
Logical volume "lv3" created.
[root@osp3 ~]# mkfs.xfs /dev/vg0/lv1
meta-data=/dev/vg0/lv1 isize=256 agcount=4, agsize=131072 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524288, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@osp3 ~]# mkfs.xfs /dev/vg0/lv2
meta-data=/dev/vg0/lv2 isize=256 agcount=4, agsize=131072 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524288, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@osp3 ~]# mkfs.xfs /dev/vg0/lv3
meta-data=/dev/vg0/lv3 isize=256 agcount=4, agsize=131072 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524288, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
挂载点必须在下面的目录中：/srv/node
修改存储的所属权限为swift：
创建ring：
/etc/swift下创建后缀为.builder的ring文件
# swift-ring-builder account.builder create 12 2 1
# swift-ring-builder container.builder create 12 2 1
# swift-ring-builder object.builder create 12 2 1
12: 2的12次幂
2表示副本数
1表示间隔，当ring创建好了以后，如果想要rebalance 1个小时候才能做
下面开始配置指定每个ring到底如何使用zone：
# swift-ring-builder object.builder add z1-192.168.179.140:6200/z1 100 #/srv/node/z1
# swift-ring-builder object.builder add z1-192.168.179.140:6200/z1 100
# swift-ring-builder object.builder add z2-192.168.179.140:6200/z2 100
# swift-ring-builder account.builder add z1-192.168.179.140:6202/z1 100
# swift-ring-builder account.builder add z2-192.168.179.140:6202/z2 100
# swift-ring-builder container.builder add z1-192.168.179.140:6201/z1 100
# swift-ring-builder container.builder add z2-192.168.179.140:6201/z2 100
100表示权重， 可以不指定即默认
分配vnode 到zone中：rebalance
swift-ring-builder account.builder rebalance
swift-ring-builder container.builder rebalance
swift-ring-builder object.builder rebalance
