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zz:OpenStackSwiftAllInOne安装部署流程与简单使用

原作者: [db:作者] 来自: [db:来源] 收藏邀请

https://www.cnblogs.com/fczjuever/archive/2013/05/11/3073151.html

首先要感谢liu大神的翻译与试验，http://www.cnblogs.com/yuki-lau/

简介

　　本文详细描述使用单台服务器部署一个Swift开发版本的过程，单台服务器运行所有Swift服务，并模拟运行具有4个结点的Swift集群。其中，这里的“服务器”可以是物理机也可以是虚拟机。

　　已验证的部署环境：

VMWare 7.1.2 Ubuntu-11.10-desktop-32位
PC物理机 Ubuntu-11.10-desktop-64位
PC物理机 Ubuntu-12.04-desktop-64位

　　本文档基于：

官方文档：Swift 1.7.6-dev documentation
Swift版本：1.7.6
python-swiftclient版本：1.2.0

　　请确保安装的Swift版本和本文档中的版本相同。如有问题，请参考官网的更新文档。

1. 安装依赖包和核心代码

1. 以root身份登录。

# sudo su - root

2. 安装必须的依赖包、库。

# apt-get install python-software-properties

# add-apt-repository ppa:swift-core/release

# apt-get update

# apt-get install curl gcc git-core memcached python-coverage python-dev python-nose python-setuptools python-simplejson python-xattr sqlite3 xfsprogs python-eventlet python-greenlet python-pastedeploy python-netifaces python-pip

# pip install mock

3. 创建swift用户和组。在此，我们直接使用root作为用户名和组名。

　　接下来，需要选择使用一个分区作为存储（Using a partition for storage）或使用一个回环设备作为存储（Using a loopback device for storage），本文档使用回环设备作为存储。若希望使用一个单独的分区作为存储，请参阅这里。

2. 使用回环设备作为存储

1. 创建存储文件夹。

# mkdir /srv

2. 调整seek的值，可以创建一个更大或更小的分区。

# dd if=/dev/zero of=/srv/swift-disk bs=1024 count=0 seek=1000000

# mkfs.xfs -i size=1024 /srv/swift-disk

3. 编辑/etc/fstab并添加如下一行。

/srv/swift-disk /mnt/sdb1 xfs loop,noatime,nodiratime,nobarrier,logbufs=8 0 0

4. 创建挂载文件夹，并挂载。

# mkdir /mnt/sdb1

# mount /mnt/sdb1

5. 创建4个子节点文件夹。

# mkdir /mnt/sdb1/1 /mnt/sdb1/2 /mnt/sdb1/3 /mnt/sdb1/4

6. 改变权限，root:root对应<your-user-name>:<your-group-name>。

# chown root:root /mnt/sdb1/*

7. 为4个子节点创建同步链接。

# for x in {1..4}; do ln -s /mnt/sdb1/$x /srv/$x; done

8. 创建server等文件夹，并改编权限。注意，不要忘记/etc/swift /srv/[1-4]/最后一个“/”。

# mkdir -p /etc/swift/object-server /etc/swift/container-server /etc/swift/account-server /srv/1/node/sdb1 /srv/2/node/sdb2 /srv/3/node/sdb3 /srv/4/node/sdb4 /var/run/swift

# chown -R root:root /etc/swift /srv/[1-4]/ /var/run/swift

9. 编辑文件/etc/rc.local，在exit 0 之前添加如下4行。

# mkdir -p /var/cache/swift /var/cache/swift2 /var/cache/swift3 /var/cache/swift4

# chown root:root /var/cache/swift*

# mkdir -p /var/run/swift

# chown root:root /var/run/swift

3. 设置Rsync

1. 创建文件/etc/rsyncd.conf，内容如下：

uid = root

gid = root

log file = /var/log/rsyncd.log

pid file = /var/run/rsyncd.pid

address = 127.0.0.1

[account6012]

max connections = 25

path = /srv/1/node/

read only = false

lock file = /var/lock/account6012.lock

[account6022]

max connections = 25

path = /srv/2/node/

read only = false

lock file = /var/lock/account6022.lock

[account6032]

max connections = 25

path = /srv/3/node/

read only = false

lock file = /var/lock/account6032.lock

[account6042]

max connections = 25

path = /srv/4/node/

read only = false

lock file = /var/lock/account6042.lock

[container6011]

max connections = 25

path = /srv/1/node/

read only = false

lock file = /var/lock/container6011.lock

[container6021]

max connections = 25

path = /srv/2/node/

read only = false

lock file = /var/lock/container6021.lock

[container6031]

max connections = 25

path = /srv/3/node/

read only = false

lock file = /var/lock/container6031.lock

[container6041]

max connections = 25

path = /srv/4/node/

read only = false

lock file = /var/lock/container6041.lock

[object6010]

max connections = 25

path = /srv/1/node/

read only = false

lock file = /var/lock/object6010.lock

[object6020]

max connections = 25

path = /srv/2/node/

read only = false

lock file = /var/lock/object6020.lock

[object6030]

max connections = 25

path = /srv/3/node/

read only = false

lock file = /var/lock/object6030.lock

[object6040]

max connections = 25

path = /srv/4/node/

read only = false

lock file = /var/lock/object6040.lock

2. 编辑文件/etc/default/rsync，设置参数RSYNC_ENABLE为true。

RSYNC_ENABLE=true

3. 启动rsync服务

# service rsync restart

4. 设置独立日志（可选）

1. 创建文件/etc/rsyslog.d/10-swift.conf，内容如下：

# Uncomment the following to have a log containing all logs together

#local1,local2,local3,local4,local5.* /var/log/swift/all.log

# Uncomment the following to have hourly proxy logs for stats processing

#$template HourlyProxyLog,"/var/log/swift/hourly/%$YEAR%%$MONTH%%$DAY%%$HOUR%"

#local1.*;local1.!notice ?HourlyProxyLog

local1.*;local1.!notice /var/log/swift/proxy.log

local1.notice /var/log/swift/proxy.error

local1.* ~

local2.*;local2.!notice /var/log/swift/storage1.log

local2.notice /var/log/swift/storage1.error

local2.* ~

local3.*;local3.!notice /var/log/swift/storage2.log

local3.notice /var/log/swift/storage2.error

local3.* ~

local4.*;local4.!notice /var/log/swift/storage3.log

local4.notice /var/log/swift/storage3.error

local4.* ~

local5.*;local5.!notice /var/log/swift/storage4.log

local5.notice /var/log/swift/storage4.error

local5.* ~

2. 编辑文件/etc/rsyslog.conf，更改参数$PrivDropToGroup为adm。

$PrivDropToGroup adm

3. 创建swift每小时的文件夹。

# mkdir -p /var/log/swift/hourly

4. 更改swift的log文件夹权限。

# chown -R syslog.adm /var/log/swift

# chmod -R g+w /var/log/swift

5. 重启rsyslog服务。

# service rsyslog restart

5. 获取代码并设置测试环境

　　若不打算在全root权限下安装Swift，则需要切换回guest权限。此处，我们全部使用root安装。

1. 创建文件夹。

# mkdir ~/bin

2. 从git上获取swift代码，下载到本地。

# git clone https://github.com/openstack/swift.git

3. 安装Swift的开发版本。

# cd ~/swift

# python setup.py develop

# cd ..

4. 从git上获取python-swiftclient代码，下载到本地。

# git clone https://github.com/openstack/python-swiftclient.git

5. 安装python-swiftclient的开发版本。

# cd ~/python-swiftclient

# python setup.py develop

# cd ..

6. 编辑文件~/.bashrc，并在文件尾添加如下内容：

export SWIFT_TEST_CONFIG_FILE=/etc/swift/test.conf

export PATH=${PATH}:~/bin

7. 执行。

# . ~/.bashrc

6. 配置结点

1. 创建文件/etc/swift/proxy-server.conf，文件内容如下：

[DEFAULT]

bind_port = 8080

user = root

log_facility = LOG_LOCAL1

eventlet_debug = true

[pipeline:main]

pipeline = healthcheck cache tempauth proxy-logging proxy-server

[app:proxy-server]

use = egg:swift#proxy

allow_account_management = true

account_autocreate = true

[filter:tempauth]

use = egg:swift#tempauth

user_admin_admin = admin .admin .reseller_admin

user_test_tester = testing .admin

user_test2_tester2 = testing2 .admin

user_test_tester3 = testing3

[filter:healthcheck]

use = egg:swift#healthcheck

[filter:cache]

use = egg:swift#memcache

[filter:proxy-logging]

use = egg:swift#proxy_logging

2. 创建文件/etc/swift/swift.conf，文件内容如下：

[swift-hash]

# random unique string that can never change (DO NOT LOSE)

swift_hash_path_suffix = jtangfs

3. 创建文件/etc/swift/account-server/1.conf，文件内容如下：

[DEFAULT]

devices = /srv/1/node

mount_check = false

disable_fallocate = true

bind_port = 6012

user = root

log_facility = LOG_LOCAL2

recon_cache_path = /var/cache/swift

eventlet_debug = true

[pipeline:main]

pipeline = recon account-server

[app:account-server]

use = egg:swift#account

[filter:recon]

use = egg:swift#recon

[account-replicator]

vm_test_mode = yes

[account-auditor]

[account-reaper]

4. 创建文件/etc/swift/account-server/2.conf，文件内容如下：

[DEFAULT]

devices = /srv/2/node

mount_check = false

disable_fallocate = true

bind_port = 6022

user = root

log_facility = LOG_LOCAL3

recon_cache_path = /var/cache/swift2

eventlet_debug = true

[pipeline:main]

pipeline = recon account-server

[app:account-server]

use = egg:swift#account

[filter:recon]

use = egg:swift#recon

[account-replicator]

vm_test_mode = yes

[account-auditor]

[account-reaper]

5. 创建文件/etc/swift/account-server/3.conf，文件内容如下：

[DEFAULT]

devices = /srv/3/node

mount_check = false

disable_fallocate = true

bind_port = 6032

user = root

log_facility = LOG_LOCAL4

recon_cache_path = /var/cache/swift3

eventlet_debug = true

[pipeline:main]

pipeline = recon account-server

[app:account-server]

use = egg:swift#account

[filter:recon]

use = egg:swift#recon

[account-replicator]

vm_test_mode = yes

[account-auditor]

[account-reaper]

6. 创建文件/etc/swift/account-server/4.conf，文件内容如下：

[DEFAULT]

devices = /srv/4/node

mount_check = false

disable_fallocate = true

bind_port = 6042

user = root

log_facility = LOG_LOCAL5

recon_cache_path = /var/cache/swift4

eventlet_debug = true

[pipeline:main]

pipeline = recon account-server

[app:account-server]

use = egg:swift#account

[filter:recon]

use = egg:swift#recon

[account-replicator]

vm_test_mode = yes

[account-auditor]

[account-reaper]

7. 创建文件/etc/swift/container-server/1.conf，文件内容如下：

[DEFAULT]

devices = /srv/1/node

mount_check = false

disable_fallocate = true

bind_port = 6011

user = root

log_facility = LOG_LOCAL2

recon_cache_path = /var/cache/swift

eventlet_debug = true

[pipeline:main]

pipeline = recon container-server

[app:container-server]

use = egg:swift#container

[filter:recon]

use = egg:swift#recon

[container-replicator]

vm_test_mode = yes

[container-updater]

[container-auditor]

[container-sync]

8. 创建文件/etc/swift/container-server/2.conf，文件内容如下：

[DEFAULT]

devices = /srv/2/node

mount_check = false

disable_fallocate = true

bind_port = 6021

user = root

log_facility = LOG_LOCAL3

recon_cache_path = /var/cache/swift2

eventlet_debug = true

[pipeline:main]

pipeline = recon container-server

[app:container-server]

use = egg:swift#container

[filter:recon]

use = egg:swift#recon

[container-replicator]

vm_test_mode = yes

[container-updater]

[container-auditor]

[container-sync]

9. 创建文件/etc/swift/container-server/3.conf，文件内容如下：

[DEFAULT]

devices = /srv/3/node

mount_check = false

disable_fallocate = true

bind_port = 6031

user = root

log_facility = LOG_LOCAL4

recon_cache_path = /var/cache/swift3

eventlet_debug = true

[pipeline:main]

pipeline = recon container-server

[app:container-server]

use = egg:swift#container

[filter:recon]

use = egg:swift#recon

[container-replicator]

vm_test_mode = yes

[container-updater]

[container-auditor]

[container-sync]

10. 创建文件/etc/swift/container-server/4.conf，文件内容如下：

[DEFAULT]

devices = /srv/4/node

mount_check = false

disable_fallocate = true

bind_port = 6041

user = root

log_facility = LOG_LOCAL5

recon_cache_path = /var/cache/swift4

eventlet_debug = true

[pipeline:main]

pipeline = recon container-server

[app:container-server]

use = egg:swift#container

[filter:recon]

use = egg:swift#recon

[container-replicator]

vm_test_mode = yes

[container-updater]

[container-auditor]

[container-sync]

11. 创建文件/etc/swift/object-server/1.conf，文件内容如下：

[DEFAULT]

devices = /srv/1/node

mount_check = false

disable_fallocate = true

bind_port = 6010

user = root

log_facility = LOG_LOCAL2

recon_cache_path = /var/cache/swift

eventlet_debug = true

[pipeline:main]

pipeline = recon object-server

[app:object-server]

use = egg:swift#object

[filter:recon]

use = egg:swift#recon

[object-replicator]

vm_test_mode = yes

[object-updater]

[object-auditor]

12. 创建文件/etc/swift/object-server/2.conf，文件内容如下：

[DEFAULT]

devices = /srv/2/node

mount_check = false

disable_fallocate = true

bind_port = 6020

user = root

log_facility = LOG_LOCAL3

recon_cache_path = /var/cache/swift2

eventlet_debug = true

[pipeline:main]

pipeline = recon object-server

[app:object-server]

use = egg:swift#object

[filter:recon]

use = egg:swift#recon

[object-replicator]

vm_test_mode = yes

[object-updater]

[object-auditor]

13. 创建文件/etc/swift/object-server/3.conf，文件内容如下：

[DEFAULT]

devices = /srv/3/node

mount_check = false

disable_fallocate = true

bind_port = 6030

user = root

log_facility = LOG_LOCAL4

recon_cache_path = /var/cache/swift3

eventlet_debug = true

[pipeline:main]

pipeline = recon object-server

[app:object-server]

use = egg:swift#object

[filter:recon]

use = egg:swift#recon

[object-replicator]

vm_test_mode = yes

[object-updater]

[object-auditor]

14. 创建文件/etc/swift/object-server/4.conf，文件内容如下：

[DEFAULT]

devices = /srv/4/node

mount_check = false

disable_fallocate = true

bind_port = 6040

user = root

log_facility = LOG_LOCAL5

recon_cache_path = /var/cache/swift4

eventlet_debug = true

[pipeline:main]

pipeline = recon object-server

[app:object-server]

use = egg:swift#object

[filter:recon]

use = egg:swift#recon

[object-replicator]

vm_test_mode = yes

[object-updater]

[object-auditor]

7. 创建Swift运行脚本

1. 创建脚本~/bin/resetswift，内容如下。注意，如果使用的是单独分区存储需要将/srv/swift-disk替换为/dev/sdb1；如果没有创建rsyslog作为独立日志，则需要移除find /var/log/swift... 这一行。

#!/bin/bash

swift-init all stop

find /var/log/swift -type f -exec rm -f {} \;

sudo umount /mnt/sdb1

sudo mkfs.xfs -f -i size=1024 /srv/swift-disk

sudo mount /mnt/sdb1

sudo mkdir /mnt/sdb1/1 /mnt/sdb1/2 /mnt/sdb1/3 /mnt/sdb1/4

sudo chown root:root /mnt/sdb1/*

mkdir -p /srv/1/node/sdb1 /srv/2/node/sdb2 /srv/3/node/sdb3 /srv/4/node/sdb4

sudo rm -f /var/log/debug /var/log/messages /var/log/rsyncd.log /var/log/syslog

find /var/cache/swift* -type f -name *.recon -exec rm -f {} \;

sudo service rsyslog restart

sudo service memcached restart

2. 创建脚本~/bin/remakerings，内容如下：

#!/bin/bash

cd /etc/swift

rm -f *.builder *.ring.gz backups/*.builder backups/*.ring.gz

swift-ring-builder object.builder create 18 3 1

swift-ring-builder object.builder add z1-127.0.0.1:6010/sdb1 1

swift-ring-builder object.builder add z2-127.0.0.1:6020/sdb2 1

swift-ring-builder object.builder add z3-127.0.0.1:6030/sdb3 1

swift-ring-builder object.builder add z4-127.0.0.1:6040/sdb4 1

swift-ring-builder object.builder rebalance

swift-ring-builder container.builder create 18 3 1

swift-ring-builder container.builder add z1-127.0.0.1:6011/sdb1 1

swift-ring-builder container.builder add z2-127.0.0.1:6021/sdb2 1

swift-ring-builder container.builder add z3-127.0.0.1:6031/sdb3 1

swift-ring-builder container.builder add z4-127.0.0.1:6041/sdb4 1

swift-ring-builder container.builder rebalance

swift-ring-builder account.builder create 18 3 1

swift-ring-builder account.builder add z1-127.0.0.1:6012/sdb1 1

swift-ring-builder account.builder add z2-127.0.0.1:6022/sdb2 1

swift-ring-builder account.builder add z3-127.0.0.1:6032/sdb3 1

swift-ring-builder account.builder add z4-127.0.0.1:6042/sdb4 1

swift-ring-builder account.builder rebalance

3. 创建脚本~/bin/startmain，内容如下：

#!/bin/bash

swift-init main start

4. 创建脚本~/bin/startrest，内容如下：

#!/bin/bash

swift-init rest start

5. 更改脚本权限。

# chmod +x ~/bin/*

6. 创建rings。

# remakerings

7. 执行功能单元测试，出现“Unable to read test config /etc/swift/test.conf – file not found”，可不必理会，或手动复制过去（配置文件在swift/test/sample.conf）。

# cd ~/swift

# ./.unittests

8. 运行swift，出现“Unable to increase file descriptor limit. Running as non-root?”警告为正常现象，不必理会。

# startmain

8. 简单使用

　　完成安装部署后，可以使用swift --help命令查看Swift帮助信息。

# swift --help

Usage: swift <command> [options] [args]

Commands:

stat [container] [object]

Displays information for the account, container, or object depending on the

args given (if any).

list [options] [container]

Lists the containers for the account or the objects for a container. -p or

--prefix is an option that will only list items beginning with that prefix.

-d or --delimiter is option (for container listings only) that will roll up

items with the given delimiter (see Cloud Files general documentation for

what this means).

upload [options] container file_or_directory [file_or_directory] [...]

Uploads to the given container the files and directories specified by the

remaining args. -c or --changed is an option that will only upload files

that have changed since the last upload. -S <size> or --segment-size <size>

and --leave-segments are options as well (see --help for more).

post [options] [container] [object]

Updates meta information for the account, container, or object depending on

the args given. If the container is not found, it will be created

automatically; but this is not true for accounts and objects. Containers

also allow the -r (or --read-acl) and -w (or --write-acl) options. The -m

or --meta option is allowed on all and used to define the user meta data

items to set in the form Name:Value. This option can be repeated. Example:

post -m Color:Blue -m Size:Large

download --all OR download container [options] [object] [object] ...

Downloads everything in the account (with --all), or everything in a

container, or a list of objects depending on the args given. For a single

object download, you may use the -o [--output] <filename> option to

redirect the output to a specific file or if "-" then just redirect to

stdout.

delete [options] --all OR delete container [options] [object] [object] ...

Deletes everything in the account (with --all), or everything in a

container, or a list of objects depending on the args given. Segments of

manifest objects will be deleted as well, unless you specify the

--leave-segments option.

Example:

swift -A https://auth.api.rackspacecloud.com/v1.0 -U user -K key stat

Options:

--version show program's version number and exit

-h, --help show this help message and exit

-s, --snet Use SERVICENET internal network

-v, --verbose Print more info

-q, --quiet Suppress status output

-A AUTH, --auth=AUTH URL for obtaining an auth token

-V AUTH_VERSION, --auth-version=AUTH_VERSION

Specify a version for authentication. Defaults to 1.0.

-U USER, --user=USER User name for obtaining an auth token.

-K KEY, --key=KEY Key for obtaining an auth token.

--os-username=<auth-user-name>

Openstack username. Defaults to env[OS_USERNAME].

--os-password=<auth-password>

Openstack password. Defaults to env[OS_PASSWORD].

--os-tenant-id=<auth-tenant-id>

OpenStack tenant ID. Defaults to env[OS_TENANT_ID]

--os-tenant-name=<auth-tenant-name>

Openstack tenant name. Defaults to

env[OS_TENANT_NAME].

--os-auth-url=<auth-url>

Openstack auth URL. Defaults to env[OS_AUTH_URL].

--os-auth-token=<auth-token>

Openstack token. Defaults to env[OS_AUTH_TOKEN]

--os-storage-url=<storage-url>

Openstack storage URL. Defaults to env[OS_STORAGE_URL]

--os-region-name=<region-name>

Openstack region name. Defaults to env[OS_REGION_NAME]

--os-service-type=<service-type>

Openstack Service type. Defaults to

env[OS_SERVICE_TYPE]

--os-endpoint-type=<endpoint-type>

Openstack Endpoint type. Defaults to

env[OS_ENDPOINT_TYPE]

--insecure Allow swiftclient to access insecure keystone server.

The keystone's certificate will not be verified.

1. 获取一个 X-Storage-Url 和 X-Auth-Token。

# curl -v -H 'X-Storage-User: test:tester' -H 'X-Storage-Pass: testing' http://127.0.0.1:8080/auth/v1.0

　　可以得到以下返回信息：

* About to connect() to 127.0.0.1 port 8080 (#0)

* Trying 127.0.0.1... connected

* Connected to 127.0.0.1 (127.0.0.1) port 8080 (#0)

> GET /auth/v1.0 HTTP/1.1

> User-Agent: curl/7.19.7 (i486-pc-linux-gnu) libcurl/7.19.7 OpenSSL/0.9.8k zlib/1.2.3.3 libidn/1.15

> Host: 127.0.0.1:8080

> Accept: */*

> X-Storage-User: test:tester

> X-Storage-Pass: testing

< HTTP/1.1 200 OK

< X-Storage-Url: http://127.0.0.1:8080/v1/AUTH_test

< X-Storage-Token: AUTH_tk6474e5ee0cb04832b9d2a168e1a164d8

< X-Auth-Token: AUTH_tk6474e5ee0cb04832b9d2a168e1a164d8

< Content-Length: 0

< Date: Mon, 04 Jul 2011 01:36:57 GMT

* Connection #0 to host 127.0.0.1 left intact

*Closing connection #0

2. 检查账户。注意，X-Auth-Token:与<token-from-x-auth-token-above>之间存在一个空格，一定不能丢。

# curl -v -H 'X-Auth-Token: <token-from-x-auth-token-above>' <url-from-x-storage-url-above>

3. 检查Swift工作。

# swift -A http://127.0.0.1:8080/auth/v1.0 -U test:tester -K testing stat

　　正确情况下，应该输出以下信息：

Account: AUTH_test

Containers: 0

Objects: 0

Bytes: 0

Accept-Ranges: bytes

4. 创建container，创建一个名称为container_test的container（目录），注意使用当前的token。

# curl -X PUT -D - -H "X-Auth_Token:AUTH_tk6474e5ee0cb04832b9d2a168e1a164d8" http://127.0.0.1:8080/v1/AUTH_test/container_test

　　正确情况下，应该得到以下信息：

HTTP/1.1 201 Created

Content-Length: 0

Content-Type: text/html; charset=UTF-8

Date: Mon, 04 Jul 2011 01:39:38 GMT

5. 查看test用户的container列表，发现只有一个目录：container_test。

# swift -A http://127.0.0.1:8080/auth/v1.0 -U test:tester -K testing list

container_test

6. 上传Object（文件），上传hello文件到container_test目录中。

# swift -A http://127.0.0.1:8080/auth/v1.0 -U test:tester -K testing upload container_test /root/hello

root/hello

7. 查看目录中的内容，查看container_test目录中的内容。

# swift -A http://127.0.0.1:8080/auth/v1.0 -U test:tester -K testing list container_test

root/hello

8. 下载Object（文件）下载container_test下的object。

# swift -A http://127.0.0.1:8080/auth/v1.0 -U test:tester -K testing download container_test

　　将container_test目录内的所有内容下载到目前所在目录。注意：如果上传文件的时候，有嵌套目录，则上传到Swift上后，也是以嵌套目录的形式存在，下载后，会在当前目录创建一样的嵌套目录。

补充说明：

　　现在已经完成SAIO的部署了，下面介绍一下系统环境的改变：

　　1. ~/swift目录下存放Swift与python-swiftclient的源代码与执行脚本。

~/swift/bin目录下存放执行脚本。
~/swift/swift_1.7.6目录下存放Swift的源代码。
~/swift/python-swiftclient_1.2.0目录下存放Swift客户端的源代码。

　　2. /usr/local/lib/python2.7/dist-packages、/usr/share/pyshared、/usr/bin、/usr/local/bin等目录下存放Swift与python-swiftclient安装后的程序文件。

　　3. Swift的回环设备挂载在/mnt/sdb1目录上。

　　4. 回环设备对应的文件为/srv/swift-disk。

　　5. 四个存储节点对应的实际存储空间（即共享上述回环设备）——/mnt/sdb1/1、/mnt/sdb1/2、/mnt/sdb1/3、/mnt/sdb1/4。

　　6. 四个存储节点指向实际存储空间的软链接——/srv/1、/srv/2、/srv/3、/srv/4。

　　7. 四个存储节点的对应的虚拟挂载点——/srv/1/node/sdb1、/srv/2/node/sdb2、/srv/2/node/sdb2、/srv/2/node/sdb2。

　　8. Swift运行时所需目录/var/run/swift，用于存放各个服务进程的pid文件等内容。

　　9. Swift临时缓存的目录（姑且这么理解）——/var/cache/swift、/var/cache/swift2、/var/cache/swift3、/var/cache/swift4。

　　10. /etc/swift目录中存放Swift自身的配置文件。

/etc/swift/object-server目录中存放四个存储节点的Object Server配置文件。
/etc/swift/container-server目录中存放四个存储节点的Container Server配置文件。
/etc/swift/account-server目录中存放四个存储节点的Account Server配置文件。
/etc/swift/proxy-server.conf为Proxy Server的配置文件。
/etc/swift/swift.conf为Swift哈希后缀的配置文件。
backups目录、*.builder文件和*.ring.rz文件都是Ring的相关文件，其中*.ring.rz文件记录了生成的Ring。
test.conf文件是Swift单元测试所需的文件。

　　11. /var/log/swift目录下存放rsyslog独立日志工具输出的日志文件。

　　12. 其他被创建的文件：

/etc/rsyncd.conf，作为rsync数据镜像备份工具的配置文件。
/etc/rsyslog.d/10-swift.conf，作为rsyslog独立日志工具的配置文件。

　　13. 其他被修改的文件：

/etc/fstab，回环设备挂载相关配置文件。
/etc/rc.local，使得系统在启动时自动创建一些Swift所需的目录，这些目录可能在系统关闭后丢失。
/etc/default/rsync，使rsync能开机启动。
/etc/rsyslog.conf，改变rsyslog工具所在的Group。
~/.bashrc，使新增的环境变量生效。

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zz:OpenStackSwiftAllInOne安装部署流程与简单使用

2. 使用回环设备作为存储

3. 设置Rsync

4. 设置独立日志（可选）

5. 获取代码并设置测试环境

6. 配置结点

7. 创建Swift运行脚本

8. 简单使用

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