Note

This documentation is for OMERO 5.2. This version is now in maintenance mode and will only be updated in the event of critical bugs or security concerns. OMERO 5.3 is expected before the end of 2016.

Manage sessions

The omero sessions plugin manage user sessions stored locally on disk. Several sessions can be active simultaneously, but only one will be used for a single invocation of bin/omero:

$ bin/omero sessions -h

Login

The omero login command is a shortcut for the omero sessions login subcommand which creates a connection to the server. If no argument is specified, the interface will ask for the connection credentials:

$ bin/omero login
Previously logged in to localhost:4064 as root
Server: [localhost:4064]
Username: [root]
Password:

Some of the options available to the omero login command are:

connection

Pass a connection string under the form [USER@]SERVER[:PORT] to instantiate a connection:

$ bin/omero login username@servername
Password:
$ bin/omero login username@servername:14064
Password:

-s SERVER, --server SERVER

Set the name of the server to connect to:

$ bin/omero login -s servername
Username: [username]

-u USER, --user USER

Set the name of the user to connect as:

$ bin/omero login -u username -s servername
Password:

-p PORT, --port PORT

Set the port to use for connection. Default: 4064:

$ bin/omero login -u username -s servername -p 14064
Password:

-g GROUP, --group GROUP

Set the group to use for initalizing a connection:

$ bin/omero login -u username -s servername -g my_group
Password:

-k KEY, --key KEY

Use a valid session key to join an existing connection.

This option only requires a server argument:

$ bin/omero login servername -k 22fccb8b-d04c-49ec-9d52-116a163728ca

-w PASSWORD, --password PASSWORD

Set the password to use for the connection.

--sudo ADMINUSER

Create a connection as another user.

The sudo functionality is available to administrators as well as group owners:

$ bin/omero login --sudo root -s servername -u username
Password for root:
$ bin/omero login --sudo owner -s servername -u username
Password for owner:

Multiple sessions

Stored sessions can be listed using the omero sessions list command:

$ bin/omero sessions list
 Server    | User | Group           | Session                              | Active    | Started
-----------+------+-----------------+--------------------------------------+-----------+--------------------------
 localhost | test | read-annotate-2 | 22fccb8b-d04c-49ec-9d52-116a163728ca | Logged in | Fri Nov 23 14:55:25 2012
 localhost | root | system          | 1f800a16-1dc2-407a-8a85-fb44005306be | True      | Fri Nov 23 14:55:18 2012
(2 rows)

Session keys can then be reused to switch between stored sessions using the omero login -k option:

$ bin/omero sessions login -k 22fccb8b-d04c-49ec-9d52-116a163728ca
Server: [localhost]
Joined session 1f800a16-1dc2-407a-8a85-fb44005306be (root@localhost:4064).
$ bin/omero sessions list
 Server    | User | Group           | Session                              | Active    | Started
-----------+------+-----------------+--------------------------------------+-----------+--------------------------
 localhost | test | read-annotate-2 | 22fccb8b-d04c-49ec-9d52-116a163728ca | True      | Fri Nov 23 14:55:25 2012
 localhost | root | system          | 1f800a16-1dc2-407a-8a85-fb44005306be | Logged in | Fri Nov 23 14:55:18 2012
(2 rows)

Sessions directory

By default sessions are saved locally on disk under the OMERO user directory located at ~/omero/sessions. The location of the current session file can be retrieved using the omero sessions file command:

$ bin/omero sessions file
/Users/ome/omero/sessions/localhost/root/aec828e1-79bf-41f3-91e6-a4ac76ff1cd5

To customize the OMERO user directory, use the OMERO_USERDIR environment variable:

   $ export OMERO_USERDIR=/tmp/omero_dir
   $ bin/omero login root@localhost:4064 -w omero
   Created session bf7b9fee-5e3f-40fa-94a6-1e23ceb43dbd (root@localhost:4064). Idle timeout: 10.0 min. Current group: system
   $ bin/omero sessions file
/tmp/omero_dir/omero/sessions/localhost/root/bf7b9fee-5e3f-40fa-94a6-1e23ceb43dbd
   $ bin/omero logout

If you want to use a custom directory for sessions exclusively, use the OMERO_SESSIONDIR environment variable:

$ export OMERO_SESSIONDIR=/tmp/my_sessions
$ bin/omero login root@localhost:4064 -w omero
Created session bf7b9fee-5e3f-40fa-94a6-1e23ceb43dbd (root@localhost:4064). Idle timeout: 10.0 min. Current group: system
$ bin/omero sessions file
/tmp/my_sessions/localhost/root/bf7b9fee-5e3f-40fa-94a6-1e23ceb43dbd
$ bin/omero logout

Note

The OMERO_SESSION_DIR environment variable introduced in 5.1.0 to specify a custom sessions directory is deprecated in 5.1.1 and above in favor of OMERO_SESSIONDIR.

If you have been using OMERO_SESSION_DIR and want to upgrade your custom sessions directory without losing locally stored sessions:

• either set OMERO_SESSIONDIR to point at the same location as OMERO_SESSION_DIR/omero/sessions
• or move all local sessions stored under the OMERO_SESSION_DIR/omero/sessions directory under the OMERO_SESSION_DIR directory and replace OMERO_SESSION_DIR by OMERO_SESSIONDIR.

Switching current group

The sessions group command can be used to switch the group of your current session:

$ bin/omero group list          # list your groups
$ bin/omero sessions group 2    # switch to group by ID or Name