starlingx/utilities
Code Issues Proposed changes

python-cephclient: rewrite to use ceph-mgr restful plugin

Browse Source 
Not using any of the existing python-cephclient package.
(it's a new package sharing the same name). Released
under Apache-2.0 license as part of StarlingX.

Additional commits:
- create session on first API request
- add missing osd_remove function
- add timeout when retrieving url and password
- sanitize osd ID input
- osd_crush_tree discards json output

Story: 2003605
Task: 28860

Depends-On: I31fb9aac89c44bbce24939197446caa987d395cb
Change-Id: I1952a12032bcd08d17786bd817d1e15ce36d5afd
Signed-off-by: Daniel Badea <daniel.badea@windriver.com>
This commit is contained in:
Daniel Badea 2019-02-25 12:50:27 +00:00
parent 55111603e1
commit ea0a829ab2
13 changed files with 6501 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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SRC_DIR="python-cephclient"
TIS_PATCH_VER=0

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Summary: Handle Ceph API calls and provide status updates via alarms
Name: python-cephclient
Version: 13.2.2.0
Release: %{tis_patch_ver}%{?_tis_dist}
License: Apache-2.0
Group: base
Packager: Wind River <info@windriver.com>
URL: https://github.com/openstack/stx-integ/tree/master/ceph/python-cephclient/python-cephclient'
Source0: %{name}-%{version}.tar.gz
BuildArch: noarch
BuildRequires: python
BuildRequires: python2-pip
BuildRequires: python2-wheel
Requires: python
Requires: python-ipaddress
Requires: python2-six
Requires: python2-requests
Provides: python-cephclient
%description
A client library in Python for Ceph Mgr RESTful plugin providing REST API
access to the cluster over an SSL-secured connection. Python API is compatible
with the old Python Ceph client at
https://github.com/dmsimard/python-cephclient that no longer works in Ceph
mimic because Ceph REST API component was removed.
%define debug_package %{nil}
%prep
%autosetup -p 1 -n %{name}-%{version}
rm -rf .pytest_cache
rm -rf python_cephclient.egg-info
rm -f requirements.txt
%build
%{__python} setup.py build
%py2_build_wheel
%install
%{__python2} setup.py install --skip-build --root %{buildroot}
mkdir -p $RPM_BUILD_ROOT/wheels
install -m 644 dist/*.whl $RPM_BUILD_ROOT/wheels/
%clean
rm -rf $RPM_BUILD_ROOT
%files
%defattr(-,root,root,-)
%license LICENSE
%{python2_sitelib}/cephclient
%{python2_sitelib}/*.egg-info
%package wheels
Summary: %{name} wheels
%description wheels
Contains python wheels for %{name}
%files wheels
/wheels/*

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.pytest_cache
*.egg-info

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#
# Copyright (c) 2019 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#

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#
# Copyright (c) 2019 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
class CephClientException(Exception):
message = "generic ceph client exception"
def __init__(self, *args, **kwargs):
if "message" not in kwargs:
try:
message = self.message.format(*args, **kwargs)
except Exception: # noqa
message = '{}, args:{}, kwargs: {}'.format(
self.message, args, kwargs)
else:
message = kwargs["message"]
super(CephClientException, self).__init__(message)
class CephMonRestfulListKeysError(CephClientException):
message = "Failed to get ceph-mgr restful plugin keys. {}"
class CephMonRestfulJsonError(CephClientException):
message = "Failed to decode ceph-mgr restful plugin JSON response: {}"
class CephMonRestfulMissingUserCredentials(CephClientException):
message = "Failed to get ceph-mgr restful plugin credentials for user: {}"
class CephMgrDumpError(CephClientException):
message = "Failed to get ceph manager info. {}"
class CephMgrJsonError(CephClientException):
message = "Failed to decode ceph manager JSON response: {}"
class CephMgrMissingRestfulService(CephClientException):
message = "Missing restful service. Available services: {}"
class CephClientFormatNotSupported(CephClientException):
message = "Command '{prefix}' does not support request format '{format}'"
class CephClientResponseFormatNotImplemented(CephClientException):
message = ("Can't decode response. Support for '{format}' format "
"is not implemented. Response: {reason}")
class CephClientFunctionNotImplemented(CephClientException):
message = "Function '{name}' is not implemented"
class CephClientInvalidChoice(CephClientException):
message = ("Function '{function}' does not support option "
"{option}='{value}'. Supported values are: {supported}")
class CephClientTypeError(CephClientException):
message = ("Expecting option '{name}' of type {expected}. "
"Got {actual} instead")
class CephClientValueOutOfBounds(CephClientException):
message = ("Argument '{name}' should be within range: {min} .. {max} "
". Got value '{actual}' instead")
class CephClientInvalidPgid(CephClientException):
message = ("Argument '{name}' is not a valid Ceph PG id. Expected "
"n.xxx where n is an int > 0, xxx is a hex number > 0. "
"Got value '{actual}' instead")
class CephClientInvalidIPAddr(CephClientException):
message = ("Argument '{name}' should be a valid IPv4 or IPv6 address. "
"Got value '{actual}' instead")
class CephClientInvalidOsdIdValue(CephClientException):
message = ("Invalid OSD ID value '{osdid}'. Should start with 'osd.'")
class CephClientInvalidOsdIdType(CephClientException):
message = ("Invalid OSD ID type for '{osdid}'. "
"Expected integer or 'osd.NNN'")
class CephClientNoSuchUser(CephClientException):
message = ("No such user '{user}'.")
class CephClientIncorrectPassword(CephClientException):
message = ("Incorrect password for user '{user}'.")

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#
# Copyright (c) 2019 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#

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#
# Copyright (c) 2019 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
import six
from cephclient.client import CephClient
from cephclient.exception import CephClientFunctionNotImplemented
from cephclient.exception import CephClientInvalidOsdIdValue
from cephclient.exception import CephClientTypeError
class CephWrapper(CephClient):
def __init__(self, endpoint=''):
super(CephWrapper, self).__init__()
def auth_import(self, body='json', timeout=None):
raise CephClientFunctionNotImplemented(name='auth_import')
def _sanitize_osdid_to_str(self, _id):
if isinstance(_id, six.string_types):
prefix = 'osd.'
if not _id.startswith(prefix):
try:
int(_id)
except ValueError:
raise CephClientInvalidOsdIdValue(
osdid=_id)
_id = prefix + _id
elif isinstance(_id, six.integer_types):
_id = 'osd.{}'.format(_id)
else:
raise CephClientInvalidOsdIdValue(
osdid=_id)
return _id
def _sanitize_osdid_to_int(self, _id):
if isinstance(_id, six.string_types):
prefix = 'osd.'
if _id.startswith(prefix):
_id = _id[len(prefix):]
try:
_id = int(_id)
except ValueError:
raise CephClientInvalidOsdIdValue(
osdid=_id)
elif not isinstance(_id, six.integer_types):
raise CephClientInvalidOsdIdValue(
osdid=_id)
return _id
def osd_create(self, uuid, body='json', timeout=None, params=None):
"""create new osd (with optional UUID and ID)
Notes:
1. osd create declares it accepts osd id as string but only works when
given an integer value; it automatically generates an ID otherwise
instead of using the one provided by 'osd create id=...'
2. old cephclient passes osd id through params dictionary
"""
kwargs = dict(uuid=uuid, body=body, timeout=timeout)
try:
kwargs['id'] = self._sanitize_osdid_to_int(params['id'])
except (KeyError, TypeError):
pass
return self._request('osd create', **kwargs)
def osd_rm(self, ids, body='json', timeout=None):
"""remove osd(s) <id> [<id>...], or use <any|all> to remove all osds """
if isinstance(ids, list):
ids = [self._sanitize_osdid_to_str(_id)
for _id in ids]
else:
ids = self._sanitize_osdid_to_str(ids)
return super(CephWrapper, self).osd_rm(
ids=ids, body=body, timeout=timeout)
def osd_remove(self, ids, body='json', timeout=None):
return self.osd_rm(ids, body=body, timeout=timeout)
def osd_down(self, ids, body='json', timeout=None):
"""set osd(s) <id> [<id>...] down, or use <any|all> to set all osds down """
if isinstance(ids, list):
ids = [self._sanitize_osdid_to_str(_id)
for _id in ids]
else:
ids = self._sanitize_osdid_to_str(ids)
return super(CephWrapper, self).osd_down(
ids=ids, body=body, timeout=timeout)
OSD_CRUSH_TREE_CONVERTED_FIELDS = [
'crush_weight', 'depth', 'id', 'name', 'type', 'type_id']
def _osd_crush_tree_convert_node(self, node):
return {k: node[k] for k in self.OSD_CRUSH_TREE_CONVERTED_FIELDS
if k in node}
def _osd_crush_tree_populate_tree(self, node, node_map):
children = node.get('children')
node = self._osd_crush_tree_convert_node(node)
if children:
node['items'] = []
for _id in children:
node['items'].append(
self._osd_crush_tree_populate_tree(
node_map[_id], node_map))
return node
def osd_crush_tree(self, shadow=None, body='json', timeout=None):
"""dump crush buckets and items in a tree view """
response, _body = super(CephWrapper, self).osd_crush_tree(
shadow=shadow, body=body, timeout=timeout)
trees = []
if response.ok and body == 'json' \
and 'output' in _body:
node_map = {}
root_nodes = []
for node in _body['output']:
node_map[node['id']] = node
if node['type'] == 'root':
root_nodes.append(node)
for root in root_nodes:
trees.append(
self._osd_crush_tree_populate_tree(
root, node_map))
_body['output'] = trees
return response, _body
def _osd_crush_rule_by_ruleset(self, ruleset, timeout=None):
response, _body = self.osd_crush_rule_dump(
body='json', timeout=timeout)
if not response.ok:
return response, _body
name = None
for rule in _body['output']:
if rule.get('ruleset') == ruleset:
name = rule.get('rule_name')
_body['output'] = dict(rule=name)
return response, _body
def _osd_crush_ruleset_by_rule(self, rule, timeout=None):
response, _body = self.osd_crush_rule_dump(
name=rule, body='json', timeout=timeout)
return response, _body
def osd_pool_create(self, pool, pg_num, pgp_num=None, pool_type=None,
erasure_code_profile=None, ruleset=None,
expected_num_objects=None, body='json', timeout=None):
"""create pool
Notes:
1. map 'ruleset' to 'rule' (assuming 1:1 correspondence)
"""
response, _body = self._osd_crush_rule_by_ruleset(ruleset)
if not response.ok:
return response, _body
rule = _body['output']['rule']
return super(CephWrapper, self).osd_pool_create(
pool, pg_num, pgp_num=pgp_num, pool_type=pool_type,
erasure_code_profile=erasure_code_profile, rule=rule,
expected_num_objects=expected_num_objects, body=body,
timeout=timeout)
def osd_get_pool_param(self, pool, var, body='json', timeout=None):
"""get pool parameter <var> """
if var == 'crush_ruleset':
response, _body = super(CephWrapper, self).osd_pool_get(
pool, 'crush_rule', body='json', timeout=timeout)
if response.ok:
rule = _body['output']['crush_rule']
del _body['output']['crush_rule']
response, _body = self._osd_crush_ruleset_by_rule(
rule, timeout=timeout)
if response.ok:
_body['output'] = dict(
crush_ruleset=_body['output']['ruleset'])
return response, _body
else:
return super(CephWrapper, self).osd_pool_get(
pool, var, body=body, timeout=timeout)
def osd_pool_set(self, pool, var, val, force=None,
body='json', timeout=None):
"""set pool parameter <var> to <val> """
return super(CephWrapper, self).osd_pool_set(
pool=pool, var=var, val=str(val),
force=force, body=body, timeout=timeout)
def osd_set_pool_param(self, pool, var, val, force=None,
body='json', timeout=None):
"""set pool parameter <var> to <val> """
if var == 'crush_ruleset':
var = 'crush_rule'
response, _body = self._osd_crush_rule_by_ruleset(
val, timeout=timeout)
if not response.ok:
return response, _body
val = _body['output']['rule']
return super(CephWrapper, self).osd_pool_set(
pool, var, str(val), force=None,
body=body, timeout=timeout)
def osd_get_pool_quota(self, pool, body='json', timeout=None):
"""obtain object or byte limits for pool """
return super(CephWrapper, self).osd_pool_get_quota(
pool, body=body, timeout=timeout)
def osd_set_pool_quota(self, pool, field, val, body='json', timeout=None):
"""set object or byte limit on pool """
return super(CephWrapper, self).osd_pool_set_quota(
pool, field, str(val), body=body, timeout=timeout)
def osd_pool_set_quota(self, pool, field, val,
body='json', timeout=None):
"""set object or byte limit on pool """
return super(CephWrapper, self).osd_pool_set_quota(
pool=pool, field=field, val=str(val),
body=body, timeout=timeout)
def _auth_convert_caps(self, caps):
if caps:
if not isinstance(caps, dict):
raise CephClientTypeError(
name='caps',
actual=type(caps),
expected=dict)
_caps = []
for key, value in list(caps.items()):
_caps.append(key)
_caps.append(value)
caps = _caps
return caps
def auth_add(self, entity, caps=None, body='json', timeout=None):
"""add auth info for <entity> from input file, or random key if no input is given, and/or any caps specified in the command """
caps = self._auth_convert_caps(caps)
return super(CephWrapper, self).auth_add(
entity, caps=caps, body=body, timeout=timeout)
def auth_caps(self, entity, caps, body='json', timeout=None):
"""update caps for <name> from caps specified in the command """
caps = self._auth_convert_caps(caps)
return super(CephWrapper, self).auth_caps(
entity, caps=caps, body=body, timeout=timeout)
def auth_get_or_create(self, entity, caps=None, body='json', timeout=None):
"""add auth info for <entity> from input file, or random key if no input given, and/or any caps specified in the command """
caps = self._auth_convert_caps(caps)
return super(CephWrapper, self).auth_get_or_create(
entity, caps, body=body, timeout=timeout)
def auth_get_or_create_key(self, entity, caps=None,
body='json', timeout=None):
"""get, or add, key for <name> from system/caps pairs specified in the command. If key already exists, any given caps must match the existing caps for that key. """
caps = self._auth_convert_caps(caps)
response, _body = super(CephWrapper, self).auth_get_or_create_key(
entity, caps, body=body, timeout=timeout)
if response.ok:
_body['output'] = _body['output']
return response, _body
def osd_set_key(self, key, sure=None, body='json', timeout=None):
"""set <key> """
return self.osd_set(key, sure=sure, body=body, timeout=timeout)

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ipaddress
requests
six

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#!/usr/bin/env python
#
# Copyright (c) 2019 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
import setuptools
setuptools.setup(
name='python-cephclient',
packages=['cephclient'],
version='13.2.2.0',
url='https://github.com/openstack/stx-integ/tree/master/ceph/python-cephclient/python-cephclient', # noqa E501
author='Daniel Badea',
author_email='daniel.badea@windriver.com',
description=(
'A client library in Python for Ceph Mgr RESTful plugin '
'providing REST API access to the cluster over an SSL-secured '
'connection. Python API is compatible with the old Python '
'Ceph client at https://github.com/dmsimard/python-cephclient '
'that no longer works in Ceph mimic because Ceph REST API '
'component was removed.'),
license='Apache-2.0',
keywords='ceph rest api ceph-rest-api client library',
install_requires=['ipaddress', 'requests', 'six'],
classifiers=[
'License :: OSI Approved :: Apache Software License',
'Development Status :: 1 - Alpha',
'Intended Audience :: Developers',
'Intended Audience :: System Administrators',
'Intended Audience :: Information Technology',
'Programming Language :: Python',
'Topic :: Utilities'
])

6
ceph/python-cephclient/python-cephclient/test-requirements.txt Normal file
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# The order of packages is significant, because pip processes them in the order
# of appearance. Changing the order has an impact on the overall integration
# process, which may cause wedges in the gate later.
flake8
pytest

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ceph/python-cephclient/python-cephclient/tox.ini Normal file
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[tox]
envlist = py27,pep8
skipsdist = True
toxworkdir = /tmp/{env:USER}_ceph_manager_tox
[testenv]
setenv = VIRTUAL_ENV={envdir}
usedevelop = True
install_command = pip install --no-binary --upgrade --force-reinstall {opts} {packages}
deps = -r{toxinidir}/test-requirements.txt
commands = py.test {posargs}
whitelist_externals = bash
[testenv:pep8]
commands =
flake8 {posargs}
[flake8]
exclude = .venv,.git,.tox,dist,doc,*lib/python*,*egg,build