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#!/usr/bin/env python
# osc-lib.py - Example using OSC as a library
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
OpenStackClient Library Examples
This script shows the basic use of the OpenStackClient ClientManager
as a library.
"""
import argparse
import logging
import sys
import common
from os_client_config import config as cloud_config
from openstackclient.common import clientmanager
LOG = logging.getLogger('')
def run(opts):
"""Run the examples"""
# Do configuration file handling
cc = cloud_config.OpenStackConfig()
LOG.debug("defaults: %s", cc.defaults)
cloud = cc.get_one_cloud(
cloud=opts.cloud,
argparse=opts,
)
LOG.debug("cloud cfg: %s", cloud.config)
# Loop through extensions to get API versions
# Currently API versions are statically selected. Once discovery
# is working this can go away...
api_version = {}
for mod in clientmanager.PLUGIN_MODULES:
version_opt = getattr(opts, mod.API_VERSION_OPTION, None)
if version_opt:
api = mod.API_NAME
api_version[api] = version_opt
# Set up certificate verification and CA bundle
# NOTE(dtroyer): This converts from the usual OpenStack way to the single
# requests argument and is an app-specific thing because
# we want to be like OpenStackClient.
if opts.cacert:
verify = opts.cacert
else:
verify = not opts.insecure
# Get a ClientManager
# Collect the auth and config options together and give them to
# ClientManager and it will wrangle all of the goons into place.
client_manager = clientmanager.ClientManager(
cli_options=cloud,
verify=verify,
api_version=api_version,
)
# At this point we have a working client manager with a configured
# session and authentication plugin. From here on it is the app
# making the decisions. Need to talk to two clouds? Make another
# client manager with different opts. Or use a config file and load it
# directly into the plugin. This example doesn't show that (yet).
# Do useful things with it
# Look in the object store
c_list = client_manager.object_store.container_list()
print("Name\tCount\tBytes")
for c in c_list:
print("%s\t%d\t%d" % (c['name'], c['count'], c['bytes']))
if len(c_list) > 0:
# See what is in the first container
o_list = client_manager.object_store.object_list(c_list[0]['name'])
print("\nObject")
for o in o_list:
print(f"{o}")
# Look at the compute flavors
flavor_list = client_manager.compute.flavors.list()
print("\nFlavors:")
for f in flavor_list:
print(f"{f}")
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='ClientManager Example')
opts = common.base_parser(
clientmanager.build_plugin_option_parser(parser),
).parse_args()
common.configure_logging(opts)
sys.exit(common.main(opts, run))
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