249 lines
12 KiB
ReStructuredText
249 lines
12 KiB
ReStructuredText
=================
|
|
Command Structure
|
|
=================
|
|
|
|
OpenStackClient has a consistent and predictable format for all of its commands.
|
|
|
|
Commands take the form::
|
|
|
|
openstack [<global-options>] <object-1> <action> [<object-2>] [<command-arguments>]
|
|
|
|
* All long options names begin with two dashes (``--``) and use a single dash
|
|
(``-``) internally between words (``--like-this``). Underscores (``_``) are
|
|
not used in option names.
|
|
|
|
|
|
Global Options
|
|
--------------
|
|
|
|
Global options are global in the sense that they apply to every command
|
|
invocation regardless of action to be performed. They include authentication
|
|
credentials and API version selection. Most global options have a corresponding
|
|
environment variable that may also be used to set the value. If both are
|
|
present, the command-line option takes priority. The environment variable
|
|
names are derived from the option name by dropping the leading dashes (``--``),
|
|
converting each embedded dash (``-``) to an underscore (``_``), and converting
|
|
to upper case.
|
|
|
|
For example, the default value of ``--os-username`` can be set by defining
|
|
the environment variable ``OS_USERNAME``.
|
|
|
|
|
|
Command Object(s) and Action
|
|
----------------------------
|
|
|
|
Commands consist of an object described by one or more words followed by
|
|
an action. Commands that require two objects have the primary object ahead
|
|
of the action and the secondary object after the action. Any positional
|
|
arguments identifying the objects shall appear in the same order as the
|
|
objects. In badly formed English it is expressed as "(Take) object1
|
|
(and perform) action (using) object2 (to it)."
|
|
|
|
::
|
|
|
|
<object-1> <action> <object-2>
|
|
|
|
Examples:
|
|
|
|
.. code-block:: bash
|
|
|
|
$ group add user <group> <user>
|
|
|
|
$ volume type list # 'volume type' is a two-word single object
|
|
|
|
|
|
Command Arguments and Options
|
|
-----------------------------
|
|
|
|
Each command may have its own set of options distinct from the global options.
|
|
They follow the same style as the global options and always appear between
|
|
the command and any positional arguments the command requires.
|
|
|
|
|
|
Objects
|
|
-------
|
|
|
|
The objects consist of one or more words to compose a unique name.
|
|
Occasionally when multiple APIs have a common name with common
|
|
overlapping purposes there will be options to select which object to use, or
|
|
the API resources will be merged, as in the ``quota`` object that has options
|
|
referring to both Compute and Volume quotas.
|
|
|
|
* ``access token``: (**Identity**) long-lived OAuth-based token
|
|
* ``availability zone``: (**Compute**, **Network**, **Volume**) a logical partition of hosts or block storage or network services
|
|
* ``aggregate``: (**Compute**) a grouping of servers
|
|
* ``backup``: (**Volume**) a volume copy
|
|
* ``catalog``: (**Identity**) service catalog
|
|
* ``command``: (**Internal**) installed commands in the OSC process
|
|
* ``configuration``: (**Internal**) openstack client configuration
|
|
* ``console log``: (**Compute**) server console text dump
|
|
* ``console url``: (**Compute**) server remote console URL
|
|
* ``consumer``: (**Identity**) OAuth-based delegatee
|
|
* ``container``: (**Object Storage**) a grouping of objects
|
|
* ``credentials``: (**Identity**) specific to identity providers
|
|
* ``domain``: (**Identity**) a grouping of projects
|
|
* ``ec2 credentials``: (**Identity**) AWS EC2-compatible credentials
|
|
* ``endpoint``: (**Identity**) the base URL used to contact a specific service
|
|
* ``extension``: (**Compute**, **Identity**, **Network**, **Volume**) OpenStack server API extensions
|
|
* ``federation protocol``: (**Identity**) the underlying protocol used while federating identities
|
|
* ``flavor``: (**Compute**) predefined server configurations: ram, root disk, etc
|
|
* ``group``: (**Identity**) a grouping of users
|
|
* ``host``: (**Compute**) - the physical computer running a hypervisor
|
|
* ``hypervisor``: (**Compute**) the virtual machine manager
|
|
* ``hypervisor stats``: (**Compute**) hypervisor statistics over all compute nodes
|
|
* ``identity provider``: (**Identity**) a source of users and authentication
|
|
* ``image``: (**Image**) a disk image
|
|
* ``ip fixed``: (**Compute**, **Network**) - an internal IP address assigned to a server
|
|
* ``ip floating``: (**Compute**, **Network**) - a public IP address that can be mapped to a server
|
|
* ``ip floating pool``: (**Compute**, **Network**) - a pool of public IP addresses
|
|
* ``keypair``: (**Compute**) an SSH public key
|
|
* ``limits``: (**Compute**, **Volume**) resource usage limits
|
|
* ``mapping``: (**Identity**) a definition to translate identity provider attributes to Identity concepts
|
|
* ``module``: (**Internal**) - installed Python modules in the OSC process
|
|
* ``network``: (**Compute**, **Network**) - a virtual network for connecting servers and other resources
|
|
* ``object``: (**Object Storage**) a single file in the Object Storage
|
|
* ``policy``: (**Identity**) determines authorization
|
|
* ``port``: (**Network**) - a virtual port for connecting servers and other resources to a network
|
|
* ``project``: (**Identity**) owns a group of resources
|
|
* ``quota``: (**Compute**, **Volume**) resource usage restrictions
|
|
* ``region``: (**Identity**) a subset of an OpenStack deployment
|
|
* ``request token``: (**Identity**) temporary OAuth-based token
|
|
* ``role``: (**Identity**) a policy object used to determine authorization
|
|
* ``role assignment``: (**Identity**) a relationship between roles, users or groups, and domains or projects
|
|
* ``router``: (**Network**) - a virtual router
|
|
* ``security group``: (**Compute**, **Network**) - groups of network access rules
|
|
* ``security group rule``: (**Compute**, **Network**) - the individual rules that define protocol/IP/port access
|
|
* ``server``: (**Compute**) virtual machine instance
|
|
* ``server dump``: (**Compute**) a dump file of a server created by features like kdump
|
|
* ``server image``: (**Compute**) saved server disk image
|
|
* ``service``: (**Identity**) a cloud service
|
|
* ``service provider``: (**Identity**) a resource that consumes assertions from an ``identity provider``
|
|
* ``snapshot``: (**Volume**) a point-in-time copy of a volume
|
|
* ``subnet``: (**Network**) - a contiguous range of IP addresses assigned to a network
|
|
* ``subnet pool``: (**Network**) - a pool of subnets
|
|
* ``token``: (**Identity**) a bearer token managed by Identity service
|
|
* ``usage``: (**Compute**) display host resources being consumed
|
|
* ``user``: (**Identity**) individual cloud resources users
|
|
* ``user role``: (**Identity**) roles assigned to a user
|
|
* ``volume``: (**Volume**) block volumes
|
|
* ``volume type``: (**Volume**) deployment-specific types of volumes available
|
|
|
|
|
|
Plugin Objects
|
|
--------------
|
|
|
|
The following are known `Objects` used by OpenStack :doc:`plugins`. These are
|
|
listed here to avoid name conflicts when creating new plugins. For a complete
|
|
list check out :doc:`plugin-commands`.
|
|
|
|
* ``action definition``: (**Workflow Engine (Mistral)**)
|
|
* ``action execution``: (**Workflow Engine (Mistral)**)
|
|
* ``baremetal``: (**Baremetal (Ironic)**)
|
|
* ``congress datasource``: (**Policy (Congress)**)
|
|
* ``congress driver``: (**Policy (Congress)**)
|
|
* ``congress policy``: (**Policy (Congress)**)
|
|
* ``congress policy rule``: (**Policy (Congress)**)
|
|
* ``cron trigger``: (**Workflow Engine (Mistral)**)
|
|
* ``dataprocessing data source``: (**Data Processing (Sahara)**)
|
|
* ``dataprocessing image``: (**Data Processing (Sahara)**)
|
|
* ``dataprocessing image tags``: (**Data Processing (Sahara)**)
|
|
* ``dataprocessing plugin``: (**Data Processing (Sahara)**)
|
|
* ``message-broker cluster``: (**Message Broker (Cue)**)
|
|
* ``message flavor``: (**Messaging (Zaqar)**)
|
|
* ``orchestration resource``: (**Orchestration (Heat)**)
|
|
* ``orchestration template``: (**Orchestration (Heat)**)
|
|
* ``pool``: (**Messaging (Zaqar)**)
|
|
* ``ptr record``: (**DNS (Designate)**)
|
|
* ``queue``: (**Messaging (Zaqar)**)
|
|
* ``recordset``: (**DNS (Designate)**)
|
|
* ``secret``: (**Key Manager (Barbican)**)
|
|
* ``secret container``: (**Key Manager (Barbican)**)
|
|
* ``secret order``: (**Key Manager (Barbican)**)
|
|
* ``software config``: (**Orchestration (Heat)**)
|
|
* ``software deployment``: (**Orchestration (Heat)**)
|
|
* ``stack event``: (**Orchestration (Heat)**)
|
|
* ``stack hook``: (**Orchestration (Heat)**)
|
|
* ``stack output``: (**Orchestration (Heat)**)
|
|
* ``stack resource``: (**Orchestration (Heat)**)
|
|
* ``stack snapshot``: (**Orchestration (Heat)**)
|
|
* ``stack template``: (**Orchestration (Heat)**)
|
|
* ``task exeuction``: (**Workflow Engine (Mistral)**)
|
|
* ``tld``: (**DNS (Designate)**)
|
|
* ``workbook``: (**Workflow Engine (Mistral)**)
|
|
* ``workflow``: (**Workflow Engine (Mistral)**)
|
|
* ``workflow execution``: (**Workflow Engine (Mistral)**)
|
|
* ``zone``: (**DNS (Designate)**)
|
|
* ``zone blacklist``: (**DNS (Designate)**)
|
|
* ``zone transfer``: (**DNS (Designate)**)
|
|
|
|
|
|
Actions
|
|
-------
|
|
|
|
The actions used by OpenStackClient are defined below to provide a consistent
|
|
meaning to each action. Many of them have logical opposite actions.
|
|
Those actions with an opposite action are noted in parens if applicable.
|
|
|
|
* ``authorize`` - authorize a token (used in OAuth)
|
|
* ``add`` (``remove``) - add some object to a container object; the command
|
|
is built in the order of ``container add object <container> <object>``,
|
|
the positional arguments appear in the same order
|
|
* ``create`` (``delete``) - create a new occurrence of the specified object
|
|
* ``delete`` (``create``) - delete specific occurrences of the specified objects
|
|
* ``issue`` (``revoke``) - issue a token
|
|
* ``list`` - display summary information about multiple objects
|
|
* ``lock`` (``unlock``) - lock one or more servers so that non-admin user won't be able to execute actions
|
|
* ``migrate`` - move a server to a different host; ``--live`` performs a
|
|
live migration if possible
|
|
* ``pause`` (``unpause``) - stop one or more servers and leave them in memory
|
|
* ``reboot`` - forcibly reboot a server
|
|
* ``rebuild`` - rebuild a server using (most of) the same arguments as in the original create
|
|
* ``remove`` (``add``) - remove an object from a group of objects
|
|
* ``rescue`` (``unrescue``) - reboot a server in a special rescue mode allowing access to the original disks
|
|
* ``resize`` - change a server's flavor
|
|
* ``restore`` - restore a heat stack snapshot or restore a server in soft-deleted state
|
|
* ``resume`` (``suspend``) - return one or more suspended servers to running state
|
|
* ``revoke`` (``issue``) - revoke a token
|
|
* ``save`` - download an object locally
|
|
* ``set`` (``unset``) - set a property on the object, formerly called metadata
|
|
* ``shelve`` (``unshelve``) - shelve one or more servers
|
|
* ``show`` - display detailed information about the specific object
|
|
* ``start`` (``stop``) - start one or more servers
|
|
* ``stop`` (``start``) - stop one or more servers
|
|
* ``suspend`` (``resume``) - stop one or more servers and save to disk freeing memory
|
|
* ``unlock`` (``lock``) - unlock one or more servers
|
|
* ``unpause`` (``pause``) - return one or more paused servers to running state
|
|
* ``unrescue`` (``rescue``) - return a server to normal boot mode
|
|
* ``unset`` (``set``) - remove an attribute of the object
|
|
* ``unshelve`` (``shelve``) - unshelve one or more servers
|
|
|
|
|
|
Implementation
|
|
--------------
|
|
|
|
The command structure is designed to support seamless addition of plugin
|
|
command modules via ``setuptools`` entry points. The plugin commands must
|
|
be subclasses of Cliff's ``command.Command`` object. See :doc:`plugins` for
|
|
more information.
|
|
|
|
|
|
Command Entry Points
|
|
--------------------
|
|
|
|
Commands are added to the client using ``setuptools`` entry points in ``setup.cfg``.
|
|
There is a single common group ``openstack.cli`` for commands that are not versioned,
|
|
and a group for each combination of OpenStack API and version that is
|
|
supported. For example, to support Identity API v3 there is a group called
|
|
``openstack.identity.v3`` that contains the individual commands. The command
|
|
entry points have the form::
|
|
|
|
action_object = fully.qualified.module.vXX.object:ActionObject
|
|
|
|
For example, the ``list user`` command for the Identity API is identified in
|
|
``setup.cfg`` with::
|
|
|
|
openstack.identity.v3 =
|
|
# ...
|
|
list_user = openstackclient.identity.v3.user:ListUser
|
|
# ...
|