Deprecate keystone CLI

bp deprecate-cli

The keystone CLI is superceded by the OpenStack unified CLI (OSC), so let’s get rid of it as soon as we can.

Problem Description

The keystone CLI is superceded by OSC, as such it’s a waste for us to continue maintaining it. Since we can’t just delete it we need to deprecate it first.

Proposed Change

The keystone CLI will print out Python’s usual deprecation warning message when it’s run. By using Python’s regular warnings module users can disable the warning message, see https://docs.python.org/2/using/cmdline.html#cmdoption-W

The help text (keystone --help) will be updated to also say that the command is deprecated.

This is part of a larger effort to get rid of the keystone command for good.

Alternatives

1. Engage in a major effort to fully support the keystone command, including implement all the identity V3 commands, duplicating the work of the OSC.
2. Make keystone a wrapper around the OSC.

Security Impact

The keystone CLI will only be patched for security and critical fixes since it’s deprecated.

Notifications Impact

None. Notifications don’t use the keystone CLI.

Other End User Impact

Users will see a message every time unless they use -W to disable the warnings.

Performance Impact

None.

Other Deployer Impact

Deployers will eventually need to move to using the unified CLI.

Developer Impact

Developers will need to move to using the unified CLI.

Implementation

Assignee(s)

Primary assignee:

<blk-u> Brant Knudson

Work Items

• Change keystone CLI to print the deprecation warning when run.
• Change keystone help text to print that it’s deprecated.
• Change keystone man page to say that it’s deprecated.

Dependencies

None.

Documentation Impact

The documentation should change all keystone commands to the equivalent openstack command.

References

• https://docs.python.org/2/using/cmdline.html#cmdoption-W
• http://docs.openstack.org/developer/python-openstackclient/