2014-04-24 16:31:04 +02:00
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# This code is part of Ansible, but is an independent component.
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# This particular file snippet, and this file snippet only, is BSD licensed.
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# Modules you write using this snippet, which is embedded dynamically by Ansible
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# still belong to the author of the module, and may assign their own license
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# to the complete work.
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#
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# Copyright (c), James Laska
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification,
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# are permitted provided that the following conditions are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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2014-03-10 22:11:24 +01:00
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import os
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import re
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import types
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import ConfigParser
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class RegistrationBase(object):
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def __init__(self, module, username=None, password=None):
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self.module = module
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self.username = username
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self.password = password
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def configure(self):
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raise NotImplementedError("Must be implemented by a sub-class")
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def enable(self):
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# Remove any existing redhat.repo
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redhat_repo = '/etc/yum.repos.d/redhat.repo'
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if os.path.isfile(redhat_repo):
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os.unlink(redhat_repo)
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def register(self):
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raise NotImplementedError("Must be implemented by a sub-class")
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def unregister(self):
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raise NotImplementedError("Must be implemented by a sub-class")
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def unsubscribe(self):
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raise NotImplementedError("Must be implemented by a sub-class")
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def update_plugin_conf(self, plugin, enabled=True):
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plugin_conf = '/etc/yum/pluginconf.d/%s.conf' % plugin
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if os.path.isfile(plugin_conf):
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cfg = ConfigParser.ConfigParser()
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cfg.read([plugin_conf])
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if enabled:
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cfg.set('main', 'enabled', 1)
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else:
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cfg.set('main', 'enabled', 0)
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fd = open(plugin_conf, 'rwa+')
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cfg.write(fd)
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fd.close()
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def subscribe(self, **kwargs):
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raise NotImplementedError("Must be implemented by a sub-class")
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class Rhsm(RegistrationBase):
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def __init__(self, module, username=None, password=None):
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RegistrationBase.__init__(self, module, username, password)
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self.config = self._read_config()
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self.module = module
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def _read_config(self, rhsm_conf='/etc/rhsm/rhsm.conf'):
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'''
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Load RHSM configuration from /etc/rhsm/rhsm.conf.
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Returns:
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* ConfigParser object
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'''
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# Read RHSM defaults ...
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cp = ConfigParser.ConfigParser()
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cp.read(rhsm_conf)
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# Add support for specifying a default value w/o having to standup some configuration
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# Yeah, I know this should be subclassed ... but, oh well
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def get_option_default(self, key, default=''):
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sect, opt = key.split('.', 1)
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if self.has_section(sect) and self.has_option(sect, opt):
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return self.get(sect, opt)
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else:
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return default
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cp.get_option = types.MethodType(get_option_default, cp, ConfigParser.ConfigParser)
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return cp
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def enable(self):
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'''
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Enable the system to receive updates from subscription-manager.
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This involves updating affected yum plugins and removing any
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conflicting yum repositories.
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'''
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RegistrationBase.enable(self)
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self.update_plugin_conf('rhnplugin', False)
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self.update_plugin_conf('subscription-manager', True)
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def configure(self, **kwargs):
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'''
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Configure the system as directed for registration with RHN
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Raises:
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* Exception - if error occurs while running command
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'''
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args = ['subscription-manager', 'config']
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# Pass supplied **kwargs as parameters to subscription-manager. Ignore
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# non-configuration parameters and replace '_' with '.'. For example,
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# 'server_hostname' becomes '--system.hostname'.
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for k,v in kwargs.items():
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if re.search(r'^(system|rhsm)_', k):
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args.append('--%s=%s' % (k.replace('_','.'), v))
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self.module.run_command(args, check_rc=True)
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@property
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def is_registered(self):
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'''
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Determine whether the current system
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Returns:
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* Boolean - whether the current system is currently registered to
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RHN.
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'''
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# Quick version...
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if False:
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return os.path.isfile('/etc/pki/consumer/cert.pem') and \
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os.path.isfile('/etc/pki/consumer/key.pem')
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args = ['subscription-manager', 'identity']
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rc, stdout, stderr = self.module.run_command(args, check_rc=False)
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if rc == 0:
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return True
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else:
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return False
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def register(self, username, password, autosubscribe, activationkey):
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'''
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Register the current system to the provided RHN server
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Raises:
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* Exception - if error occurs while running command
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'''
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args = ['subscription-manager', 'register']
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# Generate command arguments
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if activationkey:
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args.append('--activationkey "%s"' % activationkey)
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else:
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if autosubscribe:
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args.append('--autosubscribe')
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if username:
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args.extend(['--username', username])
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if password:
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args.extend(['--password', password])
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# Do the needful...
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rc, stderr, stdout = self.module.run_command(args, check_rc=True)
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def unsubscribe(self):
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'''
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Unsubscribe a system from all subscribed channels
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Raises:
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* Exception - if error occurs while running command
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'''
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args = ['subscription-manager', 'unsubscribe', '--all']
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rc, stderr, stdout = self.module.run_command(args, check_rc=True)
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def unregister(self):
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'''
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Unregister a currently registered system
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Raises:
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* Exception - if error occurs while running command
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'''
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args = ['subscription-manager', 'unregister']
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rc, stderr, stdout = self.module.run_command(args, check_rc=True)
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def subscribe(self, regexp):
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'''
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Subscribe current system to available pools matching the specified
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regular expression
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Raises:
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* Exception - if error occurs while running command
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'''
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# Available pools ready for subscription
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available_pools = RhsmPools(self.module)
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for pool in available_pools.filter(regexp):
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pool.subscribe()
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class RhsmPool(object):
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'''
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Convenience class for housing subscription information
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'''
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def __init__(self, module, **kwargs):
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self.module = module
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for k,v in kwargs.items():
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setattr(self, k, v)
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def __str__(self):
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return str(self.__getattribute__('_name'))
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def subscribe(self):
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args = "subscription-manager subscribe --pool %s" % self.PoolId
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rc, stdout, stderr = self.module.run_command(args, check_rc=True)
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if rc == 0:
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return True
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else:
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return False
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class RhsmPools(object):
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"""
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This class is used for manipulating pools subscriptions with RHSM
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"""
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def __init__(self, module):
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self.module = module
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self.products = self._load_product_list()
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def __iter__(self):
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return self.products.__iter__()
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def _load_product_list(self):
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"""
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2014-05-03 18:40:05 +02:00
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Loads list of all available pools for system in data structure
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2014-03-10 22:11:24 +01:00
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"""
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args = "subscription-manager list --available"
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rc, stdout, stderr = self.module.run_command(args, check_rc=True)
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products = []
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for line in stdout.split('\n'):
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# Remove leading+trailing whitespace
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line = line.strip()
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2014-05-03 18:40:05 +02:00
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# An empty line implies the end of an output group
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2014-03-10 22:11:24 +01:00
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if len(line) == 0:
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continue
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# If a colon ':' is found, parse
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elif ':' in line:
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(key, value) = line.split(':',1)
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key = key.strip().replace(" ", "") # To unify
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value = value.strip()
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if key in ['ProductName', 'SubscriptionName']:
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# Remember the name for later processing
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products.append(RhsmPool(self.module, _name=value, key=value))
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elif products:
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# Associate value with most recently recorded product
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products[-1].__setattr__(key, value)
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# FIXME - log some warning?
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#else:
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# warnings.warn("Unhandled subscription key/value: %s/%s" % (key,value))
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return products
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def filter(self, regexp='^$'):
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'''
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Return a list of RhsmPools whose name matches the provided regular expression
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'''
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r = re.compile(regexp)
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for product in self.products:
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if r.search(product._name):
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yield product
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