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community.general/plugins/modules/packaging/os/rhn_register.py

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2020-03-09 10:11:07 +01:00
#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: (c) James Laska
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = r'''
---
module: rhn_register
short_description: Manage Red Hat Network registration using the C(rhnreg_ks) command
description:
- Manage registration to the Red Hat Network.
author:
- James Laska (@jlaska)
notes:
- This is for older Red Hat products. You probably want the M(redhat_subscription) module instead.
- In order to register a system, C(rhnreg_ks) requires either a username and password, or an activationkey.
requirements:
- rhnreg_ks
- either libxml2 or lxml
options:
state:
description:
- Whether to register (C(present)), or unregister (C(absent)) a system.
type: str
choices: [ absent, present ]
default: present
username:
description:
- Red Hat Network username.
type: str
password:
description:
- Red Hat Network password.
type: str
server_url:
description:
- Specify an alternative Red Hat Network server URL.
- The default is the current value of I(serverURL) from C(/etc/sysconfig/rhn/up2date).
type: str
activationkey:
description:
- Supply an activation key for use with registration.
type: str
profilename:
description:
- Supply an profilename for use with registration.
type: str
ca_cert:
description:
- Supply a custom ssl CA certificate file for use with registration.
type: path
aliases: [ sslcacert ]
systemorgid:
description:
- Supply an organizational id for use with registration.
type: str
channels:
description:
- Optionally specify a list of channels to subscribe to upon successful registration.
type: list
default: []
enable_eus:
description:
- If C(no), extended update support will be requested.
type: bool
default: no
nopackages:
description:
- If C(yes), the registered node will not upload its installed packages information to Satellite server.
type: bool
default: no
'''
EXAMPLES = r'''
- name: Unregister system from RHN
rhn_register:
state: absent
username: joe_user
password: somepass
- name: Register as user with password and auto-subscribe to available content
rhn_register:
state: present
username: joe_user
password: somepass
- name: Register with activationkey and enable extended update support
rhn_register:
state: present
activationkey: 1-222333444
enable_eus: yes
- name: Register with activationkey and set a profilename which may differ from the hostname
rhn_register:
state: present
activationkey: 1-222333444
profilename: host.example.com.custom
- name: Register as user with password against a satellite server
rhn_register:
state: present
username: joe_user
password: somepass
server_url: https://xmlrpc.my.satellite/XMLRPC
- name: Register as user with password and enable channels
rhn_register:
state: present
username: joe_user
password: somepass
channels: rhel-x86_64-server-6-foo-1,rhel-x86_64-server-6-bar-1
'''
RETURN = r'''
# Default return values
'''
import os
import sys
# Attempt to import rhn client tools
sys.path.insert(0, '/usr/share/rhn')
try:
import up2date_client
import up2date_client.config
HAS_UP2DATE_CLIENT = True
except ImportError:
HAS_UP2DATE_CLIENT = False
# INSERT REDHAT SNIPPETS
from ansible_collections.community.general.plugins.module_utils import redhat
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.six.moves import urllib, xmlrpc_client
class Rhn(redhat.RegistrationBase):
def __init__(self, module=None, username=None, password=None):
redhat.RegistrationBase.__init__(self, module, username, password)
self.config = self.load_config()
self.server = None
self.session = None
def logout(self):
if self.session is not None:
self.server.auth.logout(self.session)
def load_config(self):
'''
Read configuration from /etc/sysconfig/rhn/up2date
'''
if not HAS_UP2DATE_CLIENT:
return None
config = up2date_client.config.initUp2dateConfig()
return config
@property
def server_url(self):
return self.config['serverURL']
@property
def hostname(self):
'''
Return the non-xmlrpc RHN hostname. This is a convenience method
used for displaying a more readable RHN hostname.
Returns: str
'''
url = urllib.parse.urlparse(self.server_url)
return url[1].replace('xmlrpc.', '')
@property
def systemid(self):
systemid = None
xpath_str = "//member[name='system_id']/value/string"
if os.path.isfile(self.config['systemIdPath']):
fd = open(self.config['systemIdPath'], 'r')
xml_data = fd.read()
fd.close()
# Ugh, xml parsing time ...
# First, try parsing with libxml2 ...
if systemid is None:
try:
import libxml2
doc = libxml2.parseDoc(xml_data)
ctxt = doc.xpathNewContext()
systemid = ctxt.xpathEval(xpath_str)[0].content
doc.freeDoc()
ctxt.xpathFreeContext()
except ImportError:
pass
# m-kay, let's try with lxml now ...
if systemid is None:
try:
from lxml import etree
root = etree.fromstring(xml_data)
systemid = root.xpath(xpath_str)[0].text
except ImportError:
raise Exception('"libxml2" or "lxml" is required for this module.')
# Strip the 'ID-' prefix
if systemid is not None and systemid.startswith('ID-'):
systemid = systemid[3:]
return int(systemid)
@property
def is_registered(self):
'''
Determine whether the current system is registered.
Returns: True|False
'''
return os.path.isfile(self.config['systemIdPath'])
def configure_server_url(self, server_url):
'''
Configure server_url for registration
'''
self.config.set('serverURL', server_url)
self.config.save()
def enable(self):
'''
Prepare the system for RHN registration. This includes ...
* enabling the rhnplugin yum plugin
* disabling the subscription-manager yum plugin
'''
redhat.RegistrationBase.enable(self)
self.update_plugin_conf('rhnplugin', True)
self.update_plugin_conf('subscription-manager', False)
def register(self, enable_eus=False, activationkey=None, profilename=None, sslcacert=None, systemorgid=None, nopackages=False):
'''
Register system to RHN. If enable_eus=True, extended update
support will be requested.
'''
register_cmd = ['/usr/sbin/rhnreg_ks', '--force']
if self.username:
register_cmd.extend(['--username', self.username, '--password', self.password])
if self.server_url:
register_cmd.extend(['--serverUrl', self.server_url])
if enable_eus:
register_cmd.append('--use-eus-channel')
if nopackages:
register_cmd.append('--nopackages')
if activationkey is not None:
register_cmd.extend(['--activationkey', activationkey])
if profilename is not None:
register_cmd.extend(['--profilename', profilename])
if sslcacert is not None:
register_cmd.extend(['--sslCACert', sslcacert])
if systemorgid is not None:
register_cmd.extend(['--systemorgid', systemorgid])
rc, stdout, stderr = self.module.run_command(register_cmd, check_rc=True)
def api(self, method, *args):
'''
Convenience RPC wrapper
'''
if self.server is None:
if self.hostname != 'rhn.redhat.com':
url = "https://%s/rpc/api" % self.hostname
else:
url = "https://xmlrpc.%s/rpc/api" % self.hostname
self.server = xmlrpc_client.ServerProxy(url)
self.session = self.server.auth.login(self.username, self.password)
func = getattr(self.server, method)
return func(self.session, *args)
def unregister(self):
'''
Unregister a previously registered system
'''
# Initiate RPC connection
self.api('system.deleteSystems', [self.systemid])
# Remove systemid file
os.unlink(self.config['systemIdPath'])
def subscribe(self, channels):
if not channels:
return
if self._is_hosted():
current_channels = self.api('channel.software.listSystemChannels', self.systemid)
new_channels = [item['channel_label'] for item in current_channels]
new_channels.extend(channels)
return self.api('channel.software.setSystemChannels', self.systemid, list(new_channels))
else:
current_channels = self.api('channel.software.listSystemChannels', self.systemid)
current_channels = [item['label'] for item in current_channels]
new_base = None
new_childs = []
for ch in channels:
if ch in current_channels:
continue
if self.api('channel.software.getDetails', ch)['parent_channel_label'] == '':
new_base = ch
else:
if ch not in new_childs:
new_childs.append(ch)
out_base = 0
out_childs = 0
if new_base:
out_base = self.api('system.setBaseChannel', self.systemid, new_base)
if new_childs:
out_childs = self.api('system.setChildChannels', self.systemid, new_childs)
return out_base and out_childs
def _is_hosted(self):
'''
Return True if we are running against Hosted (rhn.redhat.com) or
False otherwise (when running against Satellite or Spacewalk)
'''
return 'rhn.redhat.com' in self.hostname
def main():
module = AnsibleModule(
argument_spec=dict(
state=dict(type='str', default='present', choices=['absent', 'present']),
username=dict(type='str'),
password=dict(type='str', no_log=True),
server_url=dict(type='str'),
activationkey=dict(type='str', no_log=True),
profilename=dict(type='str'),
ca_cert=dict(type='path', aliases=['sslcacert']),
systemorgid=dict(type='str'),
enable_eus=dict(type='bool', default=False),
nopackages=dict(type='bool', default=False),
channels=dict(type='list', default=[]),
),
# username/password is required for state=absent, or if channels is not empty
# (basically anything that uses self.api requires username/password) but it doesn't
# look like we can express that with required_if/required_together/mutually_exclusive
# only username+password can be used for unregister
required_if=[['state', 'absent', ['username', 'password']]],
)
if not HAS_UP2DATE_CLIENT:
module.fail_json(msg="Unable to import up2date_client. Is 'rhn-client-tools' installed?")
server_url = module.params['server_url']
username = module.params['username']
password = module.params['password']
state = module.params['state']
activationkey = module.params['activationkey']
profilename = module.params['profilename']
sslcacert = module.params['ca_cert']
systemorgid = module.params['systemorgid']
channels = module.params['channels']
enable_eus = module.params['enable_eus']
nopackages = module.params['nopackages']
rhn = Rhn(module=module, username=username, password=password)
# use the provided server url and persist it to the rhn config.
if server_url:
rhn.configure_server_url(server_url)
if not rhn.server_url:
module.fail_json(
msg="No serverURL was found (from either the 'server_url' module arg or the config file option 'serverURL' in /etc/sysconfig/rhn/up2date)"
)
# Ensure system is registered
if state == 'present':
# Check for missing parameters ...
if not (activationkey or rhn.username or rhn.password):
module.fail_json(msg="Missing arguments, must supply an activationkey (%s) or username (%s) and password (%s)" % (activationkey, rhn.username,
rhn.password))
if not activationkey and not (rhn.username and rhn.password):
module.fail_json(msg="Missing arguments, If registering without an activationkey, must supply username or password")
# Register system
if rhn.is_registered:
module.exit_json(changed=False, msg="System already registered.")
try:
rhn.enable()
rhn.register(enable_eus, activationkey, profilename, sslcacert, systemorgid, nopackages)
rhn.subscribe(channels)
except Exception as exc:
module.fail_json(msg="Failed to register with '%s': %s" % (rhn.hostname, exc))
finally:
rhn.logout()
module.exit_json(changed=True, msg="System successfully registered to '%s'." % rhn.hostname)
# Ensure system is *not* registered
if state == 'absent':
if not rhn.is_registered:
module.exit_json(changed=False, msg="System already unregistered.")
if not (rhn.username and rhn.password):
module.fail_json(msg="Missing arguments, the system is currently registered and unregistration requires a username and password")
try:
rhn.unregister()
except Exception as exc:
module.fail_json(msg="Failed to unregister: %s" % exc)
finally:
rhn.logout()
module.exit_json(changed=True, msg="System successfully unregistered from %s." % rhn.hostname)
if __name__ == '__main__':
main()