zun/doc/source/cli/zun-status.rst
Hongbin Lu 7cc9500f5a Trivial fixes in upgrade check docs
This addresses the outstanding comments in
https://review.openstack.org/#/c/611418/

Change-Id: I77c977b6b9af0c31304ae6848fcde2b522c0c4d8
2018-10-21 19:19:38 +00:00

84 lines
1.9 KiB
ReStructuredText

==========
zun-status
==========
-------------------------------------
CLI interface for Zun status commands
-------------------------------------
Synopsis
========
::
zun-status <category> <command> [<args>]
Description
===========
:program:`zun-status` is a tool that provides routines for checking the
status of a Zun deployment.
Options
=======
The standard pattern for executing a :program:`zun-status` command is::
zun-status <category> <command> [<args>]
Run without arguments to see a list of available command categories::
zun-status
Categories are:
* ``upgrade``
Detailed descriptions are below:
You can also run with a category argument such as ``upgrade`` to see a list of
all commands in that category::
zun-status upgrade
These sections describe the available categories and arguments for
:program:`zun-status`.
Upgrade
~~~~~~~
.. _zun-status-checks:
``zun-status upgrade check``
Performs a release-specific readiness check before restarting services with
new code. For example, missing or changed configuration options,
incompatible object states, or other conditions that could lead to
failures while upgrading.
**Return Codes**
.. list-table::
:widths: 20 80
:header-rows: 1
* - Return code
- Description
* - 0
- All upgrade readiness checks passed successfully and there is nothing
to do.
* - 1
- At least one check encountered an issue and requires further
investigation. This is considered a warning but the upgrade may be OK.
* - 2
- There was an upgrade status check failure that needs to be
investigated. This should be considered something that stops an
upgrade.
* - 255
- An unexpected error occurred.
**History of Checks**
**3.0.0 (Stein)**
* Sample check to be filled in with checks as they are added in Stein.