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Reorganize subscription_manager module.

Also ...
 * When unregistering, first unsubscribe from all content
This commit is contained in:
James Laska 2013-06-07 14:07:00 -04:00
parent a2cbcec328
commit 65993e8f35

View file

@ -100,7 +100,184 @@ def run_command(args):
return (stdout, stderr, returncode)
class RegistrationBase (object):
def __init__(self, username=None, password=None):
self.username = username
self.password = password
def configure(self):
raise NotImplementedError("Must be implemented by a sub-class")
def enable(self):
# Remove any existing redhat.repo
redhat_repo = '/etc/yum.repos.d/redhat.repo'
if os.path.isfile(redhat_repo):
os.unlink(redhat_repo)
def register(self):
raise NotImplementedError("Must be implemented by a sub-class")
def unregister(self):
raise NotImplementedError("Must be implemented by a sub-class")
def unsubscribe(self):
raise NotImplementedError("Must be implemented by a sub-class")
def update_plugin_conf(self, plugin, enabled=True):
plugin_conf = '/etc/yum/pluginconf.d/%s.conf' % plugin
if os.path.isfile(plugin_conf):
cfg = ConfigParser.ConfigParser()
cfg.read([plugin_conf])
if enabled:
cfg.set('main', 'enabled', 1)
else:
cfg.set('main', 'enabled', 0)
fd = open(plugin_conf, 'rwa+')
cfg.write(fd)
fd.close()
def subscribe(self, **kwargs):
raise NotImplementedError("Must be implemented by a sub-class")
class Rhsm(RegistrationBase):
def __init__(self, username=None, password=None):
RegistrationBase.__init__(self, username, password)
self.config = self._read_config()
def _read_config(rhsm_conf='/etc/rhsm/rhsm.conf'):
'''
Load RHSM configuration from /etc/rhsm/rhsm.conf.
Returns:
* ConfigParser object
'''
# Read RHSM defaults ...
cp = ConfigParser.ConfigParser()
if os.path.isfile(rhsm_conf):
cp.read(rhsm_conf)
# Add support for specifying a default value w/o having to standup some configuration
# Yeah, I know this should be subclassed ... but, oh well
def get_option_default(self, key, default=''):
sect, opt = key.split('.', 1)
if self.has_section(sect) and self.has_option(sect, opt):
return self.get(sect, opt)
else:
return default
cp.get_option = types.MethodType(get_option_default, cp, ConfigParser.ConfigParser)
return cp
def enable(self):
'''
Enable the system to receive updates from subscription-manager.
This involves updating affected yum plugins and removing any
conflicting yum repositories.
'''
RegistrationBase.enable(self)
self.update_plugin_conf('rhnplugin', False)
self.update_plugin_conf('subscription-manager', True)
def configure(self, **kwargs):
'''
Configure the system as directed for registration with RHN
Raises:
* Exception - if error occurs while running command
'''
args = ['subscription-manager', 'config']
# Pass supplied **kwargs as parameters to subscription-manager. Ignore
# non-configuration parameters and replace '_' with '.'. For example,
# 'server_hostname' becomes '--system.hostname'.
for k,v in kwargs.items():
if re.search(r'^(system|rhsm)_', k):
args.append('--%s=%s' % (k.replace('_','.'), v))
run_command(args)
@property
def is_registered(self):
'''
Determine whether the current system
Returns:
* Boolean - whether the current system is currently registered to
RHN.
'''
# Quick version...
if False:
return os.path.isfile('/etc/pki/consumer/cert.pem') and \
os.path.isfile('/etc/pki/consumer/key.pem')
args = ['subscription-manager', 'identity']
try:
(stdout, stderr, retcode) = run_command(args)
except CommandException, e:
return False
else:
# Display some debug output
return True
def register(self, username, password, autosubscribe, activationkey):
'''
Register the current system to the provided RHN server
Raises:
* Exception - if error occurs while running command
'''
args = ['subscription-manager', 'register']
# Generate command arguments
if activationkey:
args.append('--activationkey "%s"' % activationkey)
else:
if autosubscribe:
args.append('--autosubscribe')
if username:
args.extend(['--username', username])
if password:
args.extend(['--password', password])
# Do the needful...
run_command(args)
def unsubscribe(self):
'''
Unsubscribe a system from all subscribed channels
Raises:
* Exception - if error occurs while running command
'''
args = ['subscription-manager', 'unsubscribe', '--all']
run_command(args)
def unregister(self):
'''
Unregister a currently registered system
Raises:
* Exception - if error occurs while running command
'''
args = ['subscription-manager', 'unregister']
run_command(args)
def subscribe(self, regexp):
'''
Subscribe current system to available pools matching the specified
regular expression
Raises:
* Exception - if error occurs while running command
'''
# Available pools ready for subscription
available_pools = RhsmPools()
for pool in available_pools.filter(regexp):
pool.subscribe()
class RhsmPool(object):
'''
Convenience class for housing subscription information
'''
def __init__(self, **kwargs):
for k,v in kwargs.items():
setattr(self, k, v)
@ -160,133 +337,19 @@ class RhsmPools(object):
yield product
def read_rhsm_config(rhsm_conf='/etc/rhsm/rhsm.conf'):
'''
Load RHSM configuration from /etc/rhsm/rhsm.conf.
Returns:
* ConfigParser object
'''
# Read RHSM defaults ...
cp = ConfigParser.ConfigParser()
if os.path.isfile(rhsm_conf):
cp.read(rhsm_conf)
# Add support for specifying a default value w/o having to standup some configuration
# Yeah, I know this should be subclassed ... but, oh well
def get_option_default(self, key, default=''):
sect, opt = key.split('.', 1)
if self.has_section(sect) and self.has_option(sect, opt):
return self.get(sect, opt)
else:
return default
cp.get_option = types.MethodType(get_option_default, cp, ConfigParser.ConfigParser)
return cp
def is_registered():
'''
Determine whether the current system
Returns:
* Boolean - whether the current system is currently registered to
RHN.
'''
# Quick version...
if False:
return os.path.isfile('/etc/pki/consumer/cert.pem') and \
os.path.isfile('/etc/pki/consumer/key.pem')
args = ['subscription-manager', 'identity']
try:
(stdout, stderr, retcode) = run_command(args)
except CommandException, e:
return False
else:
# Display some debug output
return True
def configure(**kwargs):
'''
Configure the system as directed for registration with RHN
Raises:
* Exception - if error occurs while running command
'''
args = ['subscription-manager', 'config']
# Pass supplied **kwargs as parameters to subscription-manager. Ignore
# non-configuration parameters and replace '_' with '.'. For example,
# 'server_hostname' becomes '--system.hostname'.
for k,v in kwargs.items():
if re.search(r'^(system|rhsm)_', k):
args.append('--%s=%s' % (k.replace('_','.'), v))
run_command(args)
def register(username, password, autosubscribe, activationkey):
'''
Register the current system to the provided RHN server
Raises:
* Exception - if error occurs while running command
'''
args = ['subscription-manager', 'register']
# Generate command arguments
if activationkey:
args.append('--activationkey "%s"' % activationkey)
else:
if autosubscribe:
args.append('--autosubscribe')
if username:
args.extend(['--username', username])
if password:
args.extend(['--password', password])
# Do the needful...
run_command(args)
def subscribe(regexp):
'''
Subscribe current system to available pools matching the specified
regular expression
Raises:
* Exception - if error occurs while running command
'''
# Available pools ready for subscription
available_pools = RhsmPools()
for pool in available_pools.filter(regexp):
pool.subscribe()
def unregister():
'''
Unregister a currently registered system
Raises:
* Exception - if error occurs while running command
'''
args = ['subscription-manager', 'unregister']
return run_command(args)
def main():
# Load RHSM configuration from file
cp = read_rhsm_config()
rhn = Rhsm()
module = AnsibleModule(
argument_spec = dict(
state = dict(default='present', choices=['present', 'absent']),
username = dict(default=None, required=False),
password = dict(default=None, required=False),
server_hostname = dict(default=cp.get_option('server.hostname'), required=False),
server_insecure = dict(default=cp.get_option('server.insecure'), required=False),
rhsm_baseurl = dict(default=cp.get_option('rhsm.baseurl'), required=False),
server_hostname = dict(default=rhn.config.get_option('server.hostname'), required=False),
server_insecure = dict(default=rhn.config.get_option('server.insecure'), required=False),
rhsm_baseurl = dict(default=rhn.config.get_option('rhsm.baseurl'), required=False),
autosubscribe = dict(default=False, type='bool'),
activationkey = dict(default=None, required=False),
pool = dict(default='^$', required=False, type='str'),
@ -313,13 +376,14 @@ def main():
module.fail_json(msg="Missing arguments, If registering without an activationkey, must supply username or password")
# Register system
if is_registered():
if rhn.is_registered:
module.exit_json(changed=False, msg="System already registered.")
else:
try:
configure(**module.params)
register(username, password, autosubscribe, activationkey)
subscribe(pool)
rhn.enable()
rhn.configure(**module.params)
rhn.register(username, password, autosubscribe, activationkey)
rhn.subscribe(pool)
except CommandException, e:
module.fail_json(msg="Failed to register with '%s': %s" % (server_hostname, e))
else:
@ -327,11 +391,12 @@ def main():
# Ensure system is *not* registered
if state == 'absent':
if not is_registered():
if not rhn.is_registered:
module.exit_json(changed=False, msg="System already unregistered.")
else:
try:
unregister()
rhn.unsubscribe()
rhn.unregister()
except CommandException, e:
module.fail_json(msg="Failed to unregister: %s" % e)
else: