OpenStack Ocata : How to use Swift

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 eth0|10.0.0.61 | +-----------+-----------+ +-----------+-----------+ +-----------+-----------+ | | [ Control Node ] | | [ Proxy Node ] | | [ Client ] | | | | | | | | | | MariaDB RabbitMQ | | Swift Proxy | | Swift Client | | | 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 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 | default | | enabled | True | | id | d88f1025bb6f4cb9944c1ddbdf21a5ca | | is_domain | False | | name | swiftservice | | parent_id | default | +-------------+----------------------------------+ # add SwiftOperator role [root@dlp ~(keystone)]#  openstack role create SwiftOperator  +-----------+----------------------------------+ | Field | Value | +-----------+----------------------------------+ | domain_id | None | | id | 1384940441b84c0ba07a713661b284fe | | name | SwiftOperator | +-----------+----------------------------------+ # add a user [root@dlp ~(keystone)]#  openstack user create --domain default --project swiftservice --password userpassword swiftuser01  +---------------------+----------------------------------+ | Field | Value | +---------------------+----------------------------------+ | default_project_id | d88f1025bb6f4cb9944c1ddbdf21a5ca | | domain_id | default | | enabled | True | | id | 29a962e911cf4b83a1925144629cdcfc | | name | swiftuser01 | | options | {} | | password_expires_at | None | +---------------------+----------------------------------+ # add the user in 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.

# install from Ocata, EPEL [root@client ~]#  yum --enablerepo=centos-openstack-ocata,epel -y install python-openstackclient 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=swiftuser01 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 # show status [root@client ~(swift)]#  swift stat  Account: AUTH_d88f1025bb6f4cb9944c1ddbdf21a5ca Containers: 0 Objects: 0 Bytes: 0 X-Put-Timestamp: 1488704758.88310 X-Timestamp: 1488704758.88310 X-Trans-Id: tx72c1cc187a9a41b5ac104-0058bbd4f6 Content-Type: text/plain; charset=utf-8 X-Openstack-Request-Id: tx72c1cc187a9a41b5ac104-0058bbd4f6

[4]	Create a Container for saving files.

[root@client ~(swift)]#  openstack container create test_container  +---------------------------------------+----------------+------------------------------------+ | account | container | x-trans-id | +---------------------------------------+----------------+------------------------------------+ | AUTH_d88f1025bb6f4cb9944c1ddbdf21a5ca | test_container | tx5e8b3c3cb177459a8520b-0058bbd50b | +---------------------------------------+----------------+------------------------------------+ [root@client ~(swift)]#  openstack container list  +----------------+ | Name | +----------------+ | test_container | +----------------+

[5]	Upload a file on local to the Container.

# upload test.txt [root@client ~(swift)]#  openstack object create test_container test.txt  +----------+----------------+----------------------------------+ | object | container | etag | +----------+----------------+----------------------------------+ | test.txt | test_container | d8e8fca2dc0f896fd7cb4cb0031ba249 | +----------+----------------+----------------------------------+ [root@client ~(swift)]#  openstack object list test_container  +----------+ | Name | +----------+ | test.txt | +----------+

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

# remove local file [root@client ~(swift)]#  rm test.txt [root@client ~(swift)]#  openstack object save test_container test.txt  [root@client ~(swift)]#  ll  total 12 -rw-------. 1 root root 1441 Dec 19 16:24 anaconda-ks.cfg -rw-------. 1 root root 284 Mar 5 18:05 keystonerc_swift -rw-r--r--. 1 root root 5 Mar 5 18:07 test.txt

[7]	Delete a file on Swift Storage.

[root@client ~(swift)]#  openstack object delete test_container test.txt  [root@client ~(swift)]#  openstack object list test_container  # test.txt is deleted

[8]	Delete a Container on Swift Storage.

[root@client ~(swift)]#  openstack container delete test_container  [root@client ~(swift)]#  openstack container list  # test_container is deleted