mirror of https://github.com/ansible/ansible.git
Michael DeHaan
12 years ago
commit
d0ded631d6
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#!/usr/bin/python
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DOCUMENTATION = '''
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---
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module: rhnreg_ks
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short_description: Manage Red Hat Network registration using the C(rhnreg_ks) command
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description:
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- Manage registration to the Red Hat Network.
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version_added: "1.2"
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author: James Laska
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notes:
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- In order to register a system, rhnreg_ks requires either a username and password, or an activationkey.
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requirements:
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- rhnreg_ks
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options:
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state:
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description:
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- whether to register (C(present)), or unregister (C(absent)) a system
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required: false
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choices: [ "present", "absent" ]
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default: "present"
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username:
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description:
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- Red Hat Network username
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required: False
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default: null
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password:
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description:
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- Red Hat Network password
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required: False
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default: null
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server_url:
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description:
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- Specify an alternative Red Hat Network server URL
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required: False
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default: Current value of I(serverURL) from C(/etc/sysconfig/rhn/up2date) is the default
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activationkey:
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description:
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- supply an activation key for use with registration
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required: False
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default: null
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channels:
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description:
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- Optionally specify a list of comma-separated channels to subscribe to upon successful registration.
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required: false
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default: []
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examples:
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- code: rhnreg_ks state=absent username=joe_user password=somepass
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description: Unregister system from RHN.
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- code: rhnreg_ks state=present username=joe_user password=somepass
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description: Register as user I(joe_user) with password I(somepass) and auto-subscribe to available content.
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- code: rhnreg_ks state=present activationkey=1-222333444 enable_eus=true
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description: Register with activationkey I(1-222333444) and enable extended update support.
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- code: rhnreg_ks state=present username=joe_user password=somepass server_url=https://xmlrpc.my.satellite/XMLRPC
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description: Register as user I(joe_user) with password I(somepass) against a satellite server specified by I(server_url).
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- code: rhnreg_ks state=present username=joe_user password=somepass channels=rhel-x86_64-server-6-foo-1,rhel-x86_64-server-6-bar-1
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description: Register as user I(joe_user) with password I(somepass) and enable channels I(rhel-x86_64-server-6-foo-1) and I(rhel-x86_64-server-6-bar-1).
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'''
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import sys
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import os
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import re
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import types
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import subprocess
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import ConfigParser
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import shlex
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import xmlrpclib
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import urlparse
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# Attempt to import rhn client tools
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sys.path.insert(0, '/usr/share/rhn')
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try:
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import up2date_client
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import up2date_client.config
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except ImportError, e:
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module.fail_json(msg="Unable to import up2date_client. Is 'rhn-client-tools' installed?\n%s" % e)
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class CommandException(Exception):
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pass
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def run_command(args):
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'''
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Convenience method to run a command, specified as a list of arguments.
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Returns:
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* tuple - (stdout, stder, retcode)
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'''
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# Coerce into a string
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if isinstance(args, str):
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args = shlex.split(args)
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# Run desired command
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proc = subprocess.Popen(args, stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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(stdout, stderr) = proc.communicate()
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returncode = proc.poll()
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if returncode != 0:
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cmd = ' '.join(args)
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raise CommandException("Command failed (%s): %s\n%s" % (returncode, cmd, stdout))
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return (stdout, stderr, returncode)
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class RegistrationBase (object):
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def __init__(self, username=None, password=None):
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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 Rhn(RegistrationBase):
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def __init__(self, username=None, password=None, filename=None):
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RegistrationBase.__init__(self, username, password)
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self.config = self._read_config(filename)
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def _read_config(self, filename=None):
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'''
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Read configuration from /etc/sysconfig/rhn/up2date
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'''
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self.config = up2date_client.config.initUp2dateConfig(filename)
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# Add support for specifying a default value w/o having to standup some
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# configuration. Yeah, I know this should be subclassed ... but, oh
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# well
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def get_option_default(self, key, default=''):
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if self.has_key(key):
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return self[key]
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else:
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return default
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self.config.get_option = types.MethodType(get_option_default, self.config, up2date_client.config.Config)
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return self.config
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@property
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def hostname(self):
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'''
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Return the non-xmlrpc RHN hostname. This is a convenience method
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used for displaying a more readable RHN hostname.
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Returns: str
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'''
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url = urlparse.urlparse(self.config['serverURL'])
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return url.netloc.replace('xmlrpc.','')
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@property
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def systemid(self):
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systemid = None
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xpath_str = "//member[name='system_id']/value/string"
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if os.path.isfile(self.config['systemIdPath']):
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fd = open(self.config['systemIdPath'], 'r')
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xml_data = fd.read()
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fd.close()
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# Ugh, xml parsing time ...
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# First, try parsing with libxml2 ...
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if systemid is None:
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try:
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import libxml2
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doc = libxml2.parseDoc(xml_data)
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ctxt = doc.xpathNewContext()
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systemid = ctxt.xpathEval(xpath_str)[0].content
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doc.freeDoc()
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ctxt.xpathFreeContext()
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except ImportError:
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pass
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# m-kay, let's try with lxml now ...
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if systemid is None:
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try:
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from lxml import etree
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root = etree.fromstring(xml_data)
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systemid = root.xpath(xpath_str)[0].text
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except ImportError:
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pass
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# Strip the 'ID-' prefix
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if systemid is not None and systemid.startswith('ID-'):
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systemid = systemid[3:]
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return int(systemid)
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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 is registered.
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Returns: True|False
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'''
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return os.path.isfile(self.config['systemIdPath'])
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def configure(self, server_url):
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'''
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Configure system for registration
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'''
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self.config.set('serverURL', server_url)
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self.config.save()
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def enable(self):
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'''
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Prepare the system for RHN registration. This includes ...
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* enabling the rhnplugin yum plugin
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* disabling the subscription-manager yum plugin
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'''
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RegistrationBase.enable(self)
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self.update_plugin_conf('rhnplugin', True)
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self.update_plugin_conf('subscription-manager', False)
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def register(self, enable_eus=False, activationkey=None):
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'''
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Register system to RHN. If enable_eus=True, extended update
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support will be requested.
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'''
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register_cmd = "rhnreg_ks --username '%s' --password '%s' --force" % (self.username, self.password)
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if enable_eus:
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register_cmd += " --use-eus-channel"
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if activationkey is not None:
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register_cmd += " --activationkey '%s'" % activationkey
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# FIXME - support --profilename
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# FIXME - support --systemorgid
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run_command(register_cmd)
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def api(self, method, *args):
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'''
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Convenience RPC wrapper
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'''
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if not hasattr(self, 'server') or self.server is None:
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url = "https://xmlrpc.%s/rpc/api" % self.hostname
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self.server = xmlrpclib.Server(url, verbose=0)
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self.session = self.server.auth.login(self.username, self.password)
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func = getattr(self.server, method)
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return func(self.session, *args)
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def unregister(self):
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'''
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Unregister a previously registered system
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'''
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# Initiate RPC connection
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self.api('system.deleteSystems', [self.systemid])
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# Remove systemid file
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os.unlink(self.config['systemIdPath'])
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def subscribe(self, channels=[]):
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if len(channels) <= 0:
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return
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current_channels = self.api('channel.software.listSystemChannels', self.systemid)
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new_channels = [item['channel_label'] for item in current_channels]
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new_channels.extend(channels)
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return self.api('channel.software.setSystemChannels', self.systemid, new_channels)
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def _subscribe(self, channels=[]):
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'''
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Subscribe to requested yum repositories using 'rhn-channel' command
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'''
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rhn_channel_cmd = "rhn-channel --user='%s' --password='%s'" % (self.username, self.password)
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(stdout, stderr, rc) = run_command(rhn_channel_cmd + " --available-channels")
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# Enable requested repoid's
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for wanted_channel in channels:
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# Each inserted repo regexp will be matched. If no match, no success.
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for availaible_channel in stdout.rstrip().split('\n'): # .rstrip() because of \n at the end -> empty string at the end
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if re.search(wanted_repo, available_channel):
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run_command(rhn_channel_cmd + " --add --channel=%s" % available_channel)
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def main():
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# Read system RHN configuration
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rhn = Rhn()
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module = AnsibleModule(
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argument_spec = dict(
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state = dict(default='present', choices=['present', 'absent']),
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username = dict(default=None, required=False),
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password = dict(default=None, required=False),
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server_url = dict(default=rhn.config.get_option('serverURL'), required=False),
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activationkey = dict(default=None, required=False),
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enable_eus = dict(default=False, type='bool'),
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channels = dict(default=[], type='list'),
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)
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)
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state = module.params['state']
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rhn.username = module.params['username']
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rhn.password = module.params['password']
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rhn.configure(module.params['server_url'])
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activationkey = module.params['activationkey']
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channels = module.params['channels']
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# Ensure system is registered
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if state == 'present':
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# Check for missing parameters ...
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if not (activationkey or rhn.username or rhn.password):
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module.fail_json(msg="Missing arguments, must supply an activationkey (%s) or username (%s) and password (%s)" % (activationkey, rhn.username, rhn.password))
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if not activationkey and not (rhn.username and rhn.password):
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module.fail_json(msg="Missing arguments, If registering without an activationkey, must supply username or password")
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# Register system
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if rhn.is_registered:
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module.exit_json(changed=False, msg="System already registered.")
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else:
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try:
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rhn.enable()
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rhn.register(module.params['enable_eus'] == True, activationkey)
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rhn.subscribe(channels)
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except CommandException, e:
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module.fail_json(msg="Failed to register with '%s': %s" % (rhn.hostname, e))
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else:
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module.exit_json(changed=True, msg="System successfully registered to '%s'." % rhn.hostname)
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# Ensure system is *not* registered
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if state == 'absent':
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if not rhn.is_registered:
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module.exit_json(changed=False, msg="System already unregistered.")
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else:
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try:
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rhn.unregister()
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except CommandException, e:
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module.fail_json(msg="Failed to unregister: %s" % e)
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else:
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module.exit_json(changed=True, msg="System successfully unregistered from %s." % rhn.hostname)
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# include magic from lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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