Ubuntu 20.04
Sponsored Link

OpenStack Ussuri : How to use Swift
2020/06/17
 
This section shows how to use Swift Storage from Clients.
This example is based on the emvironment like follows.
------------+---------------------------+-------------+---
            |                           |             |
        eth0|10.0.0.30              eth0|10.0.0.50    |
+-----------+-----------+   +-----------+-----------+ |
|    [ Control Node ]   |   |    [  Proxy Node  ]   | |
|                       |   |                       | |
|  MariaDB    RabbitMQ  |   |      Swift Proxy      | |
|  Memcached  httpd     |   |                       | |
|  Keystone             |   |                       | |
+-----------------------+   +-----------------------+ |
                                                      |
------------+---------------------------+-------------+-------------+-----------
        eth0|10.0.0.71              eth0|10.0.0.72              eth0|10.0.0.73
+-----------+-----------+   +-----------+-----------+   +-----------+-----------+
|   [ Storage Node#1 ]  |   |   [ Storage Node#2 ]  |   |   [ Storage Node#3 ]  |
|                       |   |                       |   |                       |
|     Swift-Account     |   |     Swift-Account     |   |     Swift-Account     |
|    Swift-Container    |   |    Swift-Container    |   |    Swift-Container    |
|     Swift-Object      |   |     Swift-Object      |   |     Swift-Object      |
+-----------------------+   +-----------------------+   +-----------------------+

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

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

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | Swift Service Project            |
| domain_id   | default                          |
| enabled     | True                             |
| id          | d8bb1c05ec824d338cde82051073de69 |
| is_domain   | False                            |
| name        | swiftservice                     |
| options     | {}                               |
| parent_id   | default                          |
| tags        | []                               |
+-------------+----------------------------------+

# create [SwiftOperator] role

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

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | None                             |
| domain_id   | None                             |
| id          | c30c7815125e4c87aaeb82ca636ea5b5 |
| name        | SwiftOperator                    |
| options     | {}                               |
+-------------+----------------------------------+

# add a user

root@dlp ~(keystone)#
openstack user create --domain default --project swiftservice --password userpassword swiftuser01

+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | d8bb1c05ec824d338cde82051073de69 |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 9d9281d07be147f9a3daf39e3cb164b8 |
| name                | swiftuser01                      |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

# add the user to [SwiftOperator] role

root@dlp ~(keystone)#
openstack role add --project swiftservice --user swiftuser01 SwiftOperator
[2] Work on a Client from here and later.
Install Keystoneclient, Swiftclient on a Client first.
root@client:~#
apt -y install python3-openstackclient python3-keystoneclient python3-swiftclient
[3] Load environment variables first. ( it's just the value for a user added in [1] )
ubuntu@client:~$
vi ~/keystonerc_swift
export OS_PROJECT_DOMAIN_NAME=default
export OS_USER_DOMAIN_NAME=default
export OS_PROJECT_NAME=swiftservice
export OS_USERNAME=swiftuser01
export OS_PASSWORD=userpassword
export OS_AUTH_URL=http://10.0.0.30:5000/v3
export OS_IDENTITY_API_VERSION=3
export PS1='\u@\h \W(swift)\$ '
ubuntu@client:~$
chmod 600 ~/keystonerc_swift

ubuntu@client:~$
source ~/keystonerc_swift

ubuntu@client ~(swift)$
echo "source ~/keystonerc_swift " >> ~/.bash_profile
# show status

ubuntu@client ~(swift)$
swift stat

               Account: AUTH_d8bb1c05ec824d338cde82051073de69
            Containers: 0
               Objects: 0
                 Bytes: 0
          Content-Type: text/plain; charset=utf-8
           X-Timestamp: 1592377139.83212
       X-Put-Timestamp: 1592377139.83212
                  Vary: Accept
            X-Trans-Id: txc1dfdcc87d6147f4ad094-005ee9bf33
X-Openstack-Request-Id: txc1dfdcc87d6147f4ad094-005ee9bf33
[4] Create a Container for saving files.
ubuntu@client ~(swift)$
openstack container create test_container

+---------------------------------------+----------------+------------------------------------+
| account                               | container      | x-trans-id                         |
+---------------------------------------+----------------+------------------------------------+
| AUTH_d8bb1c05ec824d338cde82051073de69 | test_container | txbbe3b198abea406c8b82e-005ee9bf50 |
+---------------------------------------+----------------+------------------------------------+

ubuntu@client ~(swift)$
openstack container list

+----------------+
| Name           |
+----------------+
| test_container |
+----------------+
[5] Upload a file on local to the Container.
# upload [testfile.txt]

ubuntu@client ~(swift)$
openstack object create test_container testfile.txt

+--------------+----------------+----------------------------------+
| object       | container      | etag                             |
+--------------+----------------+----------------------------------+
| testfile.txt | test_container | e9409172a4036cc688f169c72131e921 |
+--------------+----------------+----------------------------------+

ubuntu@client ~(swift)$
openstack object list test_container

+--------------+
| Name         |
+--------------+
| testfile.txt |
+--------------+
[6] Download a file from Swift Storage to local.
ubuntu@client ~(swift)$
rm testfile.txt
ubuntu@client ~(swift)$
openstack object save test_container testfile.txt

ubuntu@client ~(swift)$
total 56
drwx------  5 root root  4096 Jun 17 16:01 ./
drwxr-xr-x 20 root root  4096 Jun  2 10:34 ../
-rw-------  1 root root  3487 Jun 17 15:40 .bash_history
-rw-r--r--  1 root root  3106 Dec  5  2019 .bashrc
drwx------  2 root root  4096 Jun  2 10:35 .cache/
-rw-r--r--  1 root root   161 Dec  5  2019 .profile
drwx------  2 root root  4096 Jun  2 10:29 .ssh/
-rw-------  1 root root 15171 Jun 17 16:00 .viminfo
-rw-------  1 root root   281 Jun 17 14:50 keystonerc_swift
drwxr-xr-x  3 root root  4096 Jun  2 10:29 snap/
-rw-r--r--  1 root root     9 Jun 17 16:01 testfile.txt
[7] Delete a file on Swift Storage.
ubuntu@client ~(swift)$
openstack object delete test_container testfile.txt

ubuntu@client ~(swift)$
openstack object list test_container

# [testfile.txt] has been removed

[8] Delete a Container on Swift Storage.
ubuntu@client ~(swift)$
openstack container delete test_container

ubuntu@client ~(swift)$
openstack container list

# [test_container] has been removed
Matched Content