138 lines
5.1 KiB
Python
138 lines
5.1 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import argparse
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import json
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from oslo_utils import netutils
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import requests
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import six
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from ironic_discoverd.common.i18n import _
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_DEFAULT_URL = 'http://' + netutils.get_my_ipv4() + ':5050/v1'
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_ERROR_ENCODING = 'utf-8'
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def _prepare(base_url, auth_token):
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base_url = (base_url or _DEFAULT_URL).rstrip('/')
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if not base_url.endswith('v1'):
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base_url += '/v1'
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headers = {'X-Auth-Token': auth_token} if auth_token else {}
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return base_url, headers
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class ClientError(requests.HTTPError):
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"""Error returned from a server."""
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def __init__(self, response):
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# discoverd returns error message in body
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msg = response.content.decode(_ERROR_ENCODING)
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super(ClientError, self).__init__(msg, response=response)
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@classmethod
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def raise_if_needed(cls, response):
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"""Raise exception if response contains error."""
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if response.status_code >= 400:
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raise cls(response)
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def introspect(uuid, base_url=None, auth_token=None,
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new_ipmi_password=None, new_ipmi_username=None):
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"""Start introspection for a node.
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:param uuid: node uuid
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:param base_url: *ironic-discoverd* URL in form: http://host:port[/ver],
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defaults to ``http://<current host>:5050/v1``.
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:param auth_token: Keystone authentication token.
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:param new_ipmi_password: if set, *ironic-discoverd* will update IPMI
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password to this value.
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:param new_ipmi_username: if new_ipmi_password is set, this values sets
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new IPMI user name. Defaults to one in
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driver_info.
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"""
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if not isinstance(uuid, six.string_types):
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raise TypeError(_("Expected string for uuid argument, got %r") % uuid)
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if new_ipmi_username and not new_ipmi_password:
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raise ValueError(_("Setting IPMI user name requires a new password"))
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base_url, headers = _prepare(base_url, auth_token)
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params = {'new_ipmi_username': new_ipmi_username,
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'new_ipmi_password': new_ipmi_password}
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res = requests.post("%s/introspection/%s" % (base_url, uuid),
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headers=headers, params=params)
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ClientError.raise_if_needed(res)
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def get_status(uuid, base_url=None, auth_token=None):
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"""Get introspection status for a node.
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New in ironic-discoverd version 1.0.0.
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:param uuid: node uuid.
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:param base_url: *ironic-discoverd* URL in form: http://host:port[/ver],
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defaults to ``http://<current host>:5050/v1``.
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:param auth_token: Keystone authentication token.
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:raises: *requests* library HTTP errors.
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"""
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if not isinstance(uuid, six.string_types):
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raise TypeError(_("Expected string for uuid argument, got %r") % uuid)
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base_url, headers = _prepare(base_url, auth_token)
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res = requests.get("%s/introspection/%s" % (base_url, uuid),
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headers=headers)
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ClientError.raise_if_needed(res)
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return res.json()
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def discover(uuids, base_url=None, auth_token=None):
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"""Post node UUID's for discovery.
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DEPRECATED. Use introspect instead.
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"""
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if not all(isinstance(s, six.string_types) for s in uuids):
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raise TypeError(_("Expected list of strings for uuids argument, "
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"got %s") % uuids)
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base_url, headers = _prepare(base_url, auth_token)
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headers['Content-Type'] = 'application/json'
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res = requests.post(base_url + "/discover",
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data=json.dumps(uuids), headers=headers)
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ClientError.raise_if_needed(res)
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if __name__ == '__main__': # pragma: no cover
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parser = argparse.ArgumentParser(description='Discover nodes.')
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parser.add_argument('cmd', metavar='cmd',
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choices=['introspect', 'get_status'],
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help='command: introspect or get_status.')
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parser.add_argument('uuid', metavar='UUID', type=str,
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help='node UUID.')
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parser.add_argument('--base-url', dest='base_url', action='store',
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default=_DEFAULT_URL,
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help='base URL, default to localhost.')
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parser.add_argument('--auth-token', dest='auth_token', action='store',
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default='',
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help='Keystone token.')
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args = parser.parse_args()
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func = globals()[args.cmd]
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try:
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res = func(uuid=args.uuid, base_url=args.base_url,
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auth_token=args.auth_token)
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except Exception as exc:
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print('Error:', exc)
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else:
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if res:
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print(json.dumps(res))
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