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OpenStack Kilo : How to use Swift
2015/06/20
 
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 --description "Swift Service Project" swiftservice 

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | Swift Service Project            |
| enabled     | True                             |
| id          | 89c17437e2cb40dbb095f5701e56f6af |
| name        | swiftservice                     |
+-------------+----------------------------------+
# add swiftoperator role

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

+-------+----------------------------------+
| Field | Value                            |
+-------+----------------------------------+
| id    | 0506b8a83e91472badcb3484b7c3b1f3 |
| name  | swiftoperator                    |
+-------+----------------------------------+
# add a user

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

+------------+----------------------------------+
| Field      | Value                            |
+------------+----------------------------------+
| email      | None                             |
| enabled    | True                             |
| id         | e257da9f32504f369a55c85a9b12bfd1 |
| name       | user01                           |
| project_id | 89c17437e2cb40dbb095f5701e56f6af |
| username   | user01                           |
+------------+----------------------------------+
# add the user in swiftoperator role

[root@dlp ~(keystone)]#
openstack role add --project swiftservice --user user01 swiftoperator 

+-------+----------------------------------+
| Field | Value                            |
+-------+----------------------------------+
| id    | 0506b8a83e91472badcb3484b7c3b1f3 |
| name  | swiftoperator                    |
+-------+----------------------------------+
[2] Work on a Client from here and later.
Install Keystoneclient, Swiftclient on a Client first.
# install from RDO, EPEL

[root@client ~]#
yum --enablerepo=openstack-kilo,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_ID=default
export OS_USER_DOMAIN_ID=default
export OS_PROJECT_NAME=swiftservice
export OS_TENANT_NAME=swiftservice
export OS_USERNAME=user01
export OS_PASSWORD=userpassword
export OS_AUTH_URL=http://10.0.0.30:35357/v2.0
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_89c17437e2cb40dbb095f5701e56f6af
     Containers: 0
        Objects: 0
          Bytes: 0
X-Put-Timestamp: 1434716113.34726
     Connection: keep-alive
    X-Timestamp: 1434716113.34726
     X-Trans-Id: txb2af469551f14ee39bb6e-00558407d1
   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)]#
ll 

total 12
-rw-------. 1 root root 985 Jan  8 07:52 anaconda-ks.cfg
-rw-------  1 root root 279 Jun 19 21:15 keystonerc_swift
-rw-r--r--  1 root root  30 Jun 19 21:15 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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