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OpenStack Mitaka : How to use Swift
2016/05/11
 
This section shows how to use Swift Storage from Clients.
This section shows how to use Swift Storage from Clients.
This example shows to configure like the environment below.
                                    |
     +------------------+           |           +-----------------+
     | [ Control Node ] |10.0.0.30  |  10.0.0.50|  [ Proxy Node ] |
     |     Keystone     |-----------+-----------|                 |
     +------------------+           |           +-----------------+          +----------------+
                                    |                               10.0.0.20|  [ ClientPC ]  |
        +---------------------------+--------------------------+-------------|                |
        |                           |                          |             +----------------+
        |10.0.0.71                  |10.0.0.72                 |10.0.0.73 
+-------+----------+       +--------+---------+       +--------+---------+
| [Storage Node#1] |       | [Storage Node#2] |       | [Storage Node#3] |
|                  |-------|                  |-------|                  |
+------------------+       +------------------+       +------------------+

[1] Add a user for using Swift on Keystone Control Node.
By the way, if you'd like to use Swift Quickly, it's unnecessarry to add a new user, it's posibble to use with existing admin or swift user on Keystone.
# add swiftservice project

[root@dlp ~(keystone)]#
openstack project create --domain default --description "Swift Service Project" swiftservice

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | Swift Service Project            |
| domain_id   | dc18e12756a54ce7aea35e99f01decd8 |
| enabled     | True                             |
| id          | 71b31e1fe4c84e12a0cc6f08c479a20d |
| is_domain   | False                            |
| name        | swiftservice                     |
| parent_id   | dc18e12756a54ce7aea35e99f01decd8 |
+-------------+----------------------------------+

# add SwiftOperator role

[root@dlp ~(keystone)]#
openstack role create SwiftOperator

+-----------+----------------------------------+
| Field     | Value                            |
+-----------+----------------------------------+
| domain_id | None                             |
| id        | 0e0064b5be404cdeb1aaff129efa14ec |
| name      | SwiftOperator                    |
+-----------+----------------------------------+

# add a user

[root@dlp ~(keystone)]#
openstack user create --domain default --project swiftservice --password userpassword user01

+--------------------+----------------------------------+
| Field              | Value                            |
+--------------------+----------------------------------+
| default_project_id | 71b31e1fe4c84e12a0cc6f08c479a20d |
| domain_id          | dc18e12756a54ce7aea35e99f01decd8 |
| enabled            | True                             |
| id                 | 3409ddc81f6942b2a297dc827b50d1e2 |
| name               | user01                           |
+--------------------+----------------------------------+

# add the user in SwiftOperator role

[root@dlp ~(keystone)]#
openstack role add --project swiftservice --user user01 SwiftOperator
[2] Work on a Client from here and later.
Install Keystoneclient, Swiftclient on a Client first.
# install from Mitaka, EPEL

[root@client ~]#
yum --enablerepo=centos-openstack-mitaka,epel -y install python-keystoneclient python-swiftclient
[3] Load environment variables first. ( it's just the value for a user added in [1] )
[root@client ~]#
vi ~/keystonerc_swift
export OS_PROJECT_DOMAIN_NAME=default
export OS_USER_DOMAIN_NAME=default
export OS_PROJECT_NAME=swiftservice
export OS_USERNAME=user01
export OS_PASSWORD=userpassword
export OS_AUTH_URL=http://10.0.0.30:35357/v3
export OS_IDENTITY_API_VERSION=3
export PS1='[\u@\h \W(swift)]\$ '
[root@client ~]#
chmod 600 ~/keystonerc_swift

[root@client ~]#
source ~/keystonerc_swift

[root@client ~(swift)]#
echo "source ~/keystonerc_swift " >> ~/.bash_profile
# display status

[root@client ~(swift)]#
swift stat

        Account: AUTH_71b31e1fe4c84e12a0cc6f08c479a20d
     Containers: 0
        Objects: 0
          Bytes: 0
X-Put-Timestamp: 1463054733.04389
    X-Timestamp: 1463054733.04389
     X-Trans-Id: txbc124714cfa0490ead55f-005734718c
   Content-Type: text/plain; charset=utf-8
[4] Create a Container for saving files.
[root@client ~(swift)]#
swift post test_container

[root@client ~(swift)]#
swift list

test_container    
# just created

[5] Upload a file on local to the Container.
# upload test.txt

[root@client ~(swift)]#
swift upload test_container test.txt

test.txt
[root@client ~(swift)]#
swift list test_container

test.txt    
# just uploaded

[6] Download a file from Swift Storage to local.
# remove a file on local

[root@client ~(swift)]#
rm test.txt
[root@client ~(swift)]#
swift download test_container test.txt

test.txt [auth 0.243s, headers 0.497s, total 0.497s, 0.000 MB/s]
[root@client ~(swift)]#
total 12
-rw-------. 1 root root 985 Jan  8  2015 anaconda-ks.cfg
-rw-------  1 root root 279 May 12 21:05 keystonerc_swift
-rw-r--r--  1 root root  10 May 12 21:07 test.txt
[7] Delete a file on Swift Storage.
[root@client ~(swift)]#
swift delete test_container test.txt

test.txt
[root@client ~(swift)]#
swift list test_container

test2.txt    
# test.txt is just deleted

[8] Delete a Container on Swift Storage.
[root@client ~(swift)]#
swift delete test_container

[root@client ~(swift)]#
swift list

# just deleted
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