Client for OpenStack services
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Matt Riedemann 752a2db332 Optimize _prep_server_detail to avoid redundant find_resource
When showing a server or doing a rebuild, we already have
the latest version of the server so _prep_server_detail
getting the server again is an unnecessary performance hit.

ShowServer is pretty obvious here. For RebuildServer, the
compute API actually refreshes the server before returning
it in the response, so the client already gets the latest
when the rebuild call returns.

The only other usage of _prep_server_detail that does require
a refresh is CreateServer since the POST /servers response is
a minimal version of the server object.

This adds a new refresh kwarg, backward compatible by default,
to _prep_server_detail but changes ShowServer and RebuildServer
to no longer refresh.

Change-Id: Ib1c9c424ed1cafc2dfd8be90af8de8a774bdfbf0
2018-06-08 11:46:29 -04:00
doc Allow setting network-segment on subnet update 2018-06-06 11:56:39 +02:00
examples osc-lib: api.auth 2016-06-30 08:57:59 -05:00
openstackclient Optimize _prep_server_detail to avoid redundant find_resource 2018-06-08 11:46:29 -04:00
playbooks/osc-devstack Make osc-functional-devstack-tips actually use tips 2018-02-05 17:00:08 -06:00
releasenotes Allow setting network-segment on subnet update 2018-06-06 11:56:39 +02:00
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README.rst

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OpenStackClient

Latest Version

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OpenStackClient (aka OSC) is a command-line client for OpenStack that brings the command set for Compute, Identity, Image, Object Store and Block Storage APIs together in a single shell with a uniform command structure.

The primary goal is to provide a unified shell command structure and a common language to describe operations in OpenStack.

  • PyPi - package installation
  • Online Documentation
  • Launchpad project - release management
  • Blueprints - feature specifications
  • Bugs - issue tracking
  • Source
  • Developer - getting started as a developer
  • Contributing - contributing code
  • Testing - testing code
  • IRC: #openstack-sdks on Freenode (irc.freenode.net)
  • License: Apache 2.0

Getting Started

OpenStack Client can be installed from PyPI using pip:

pip install python-openstackclient

There are a few variants on getting help. A list of global options and supported commands is shown with --help:

openstack --help

There is also a help command that can be used to get help text for a specific command:

openstack help
openstack help server create

If you want to make changes to the OpenStackClient for testing and contribution, make any changes and then run:

python setup.py develop

or:

pip install -e .

Configuration

The CLI is configured via environment variables and command-line options as listed in https://docs.openstack.org/python-openstackclient/latest/cli/authentication.html.

Authentication using username/password is most commonly used:

export OS_AUTH_URL=<url-to-openstack-identity>
export OS_IDENTITY_API_VERSION=3
export OS_PROJECT_NAME=<project-name>
export OS_PROJECT_DOMAIN_NAME=<project-domain-name>
export OS_USERNAME=<username>
export OS_USER_DOMAIN_NAME=<user-domain-name>
export OS_PASSWORD=<password>  # (optional)

The corresponding command-line options look very similar:

--os-auth-url <url>
--os-identity-api-version 3
--os-project-name <project-name>
--os-project-domain-name <project-domain-name>
--os-username <username>
--os-user-domain-name <user-domain-name>
[--os-password <password>]

If a password is not provided above (in plaintext), you will be interactively prompted to provide one securely.

Authentication may also be performed using an already-acquired token and a URL pointing directly to the service API that presumably was acquired from the Service Catalog:

export OS_TOKEN=<token>
export OS_URL=<url-to-openstack-service>

The corresponding command-line options look very similar:

--os-token <token>
--os-url <url-to-openstack-service>