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# Copyright (C) 2015 Red Hat, Inc.
#
# Author: Brent Baude <bbaude@redhat.com>
#
# This file is part of cloud-init. See LICENSE file for license information.
"""Red Hat Subscription: Register Red Hat Enterprise Linux based system"""
import logging
from cloudinit import subp, util
from cloudinit.cloud import Cloud
from cloudinit.config import Config
from cloudinit.config.schema import MetaSchema
from cloudinit.settings import PER_INSTANCE
LOG = logging.getLogger(__name__)
meta: MetaSchema = {
"id": "cc_rh_subscription",
"distros": ["fedora", "rhel", "openeuler"],
"frequency": PER_INSTANCE,
"activate_by_schema_keys": ["rh_subscription"],
} # type: ignore
def handle(name: str, cfg: Config, cloud: Cloud, args: list) -> None:
sm = SubscriptionManager(cfg, log=LOG)
if not sm.is_configured():
LOG.debug("%s: module not configured.", name)
return None
if not sm.is_registered():
try:
verify, verify_msg = sm._verify_keys()
if verify is not True:
raise SubscriptionError(verify_msg)
cont = sm.rhn_register()
if not cont:
raise SubscriptionError(
"Registration failed or did not run completely"
)
# Splitting up the registration, auto-attach, and servicelevel
# commands because the error codes, messages from subman are not
# specific enough.
# Attempt to change the service level
if sm.auto_attach and sm.servicelevel is not None:
if not sm._set_service_level():
raise SubscriptionError("Setting of service-level failed")
else:
sm.log.debug("Completed auto-attach with service level")
elif sm.auto_attach:
if not sm._set_auto_attach():
raise SubscriptionError("Setting auto-attach failed")
else:
sm.log.debug("Completed auto-attach")
if sm.pools is not None:
if not isinstance(sm.pools, list):
pool_fail = "Pools must in the format of a list"
raise SubscriptionError(pool_fail)
return_stat = sm.addPool(sm.pools)
if not return_stat:
raise SubscriptionError(
"Unable to attach pools {0}".format(sm.pools)
)
return_stat = sm.update_repos()
if not return_stat:
raise SubscriptionError("Unable to add or remove repos")
sm.log_success("rh_subscription plugin completed successfully")
except SubscriptionError as e:
sm.log_warn(str(e))
sm.log_warn("rh_subscription plugin did not complete successfully")
else:
sm.log_success("System is already registered")
class SubscriptionError(Exception):
pass
class SubscriptionManager:
valid_rh_keys = [
"org",
"activation-key",
"username",
"password",
"disable-repo",
"enable-repo",
"add-pool",
"rhsm-baseurl",
"server-hostname",
"auto-attach",
"service-level",
]
def __init__(self, cfg, log=None):
if log is None:
log = LOG
self.log = log
self.cfg = cfg
self.rhel_cfg = self.cfg.get("rh_subscription", {})
self.rhsm_baseurl = self.rhel_cfg.get("rhsm-baseurl")
self.server_hostname = self.rhel_cfg.get("server-hostname")
self.pools = self.rhel_cfg.get("add-pool")
self.activation_key = self.rhel_cfg.get("activation-key")
self.org = self.rhel_cfg.get("org")
self.userid = self.rhel_cfg.get("username")
self.password = self.rhel_cfg.get("password")
self.auto_attach = self.rhel_cfg.get("auto-attach")
self.enable_repo = self.rhel_cfg.get("enable-repo")
self.disable_repo = self.rhel_cfg.get("disable-repo")
self.servicelevel = self.rhel_cfg.get("service-level")
def log_success(self, msg):
"""Simple wrapper for logging info messages. Useful for unittests"""
self.log.info(msg)
def log_warn(self, msg):
"""Simple wrapper for logging warning messages. Useful for unittests"""
self.log.warning(msg)
def _verify_keys(self):
"""
Checks that the keys in the rh_subscription dict from the user-data
are what we expect.
"""
for k in self.rhel_cfg:
if k not in self.valid_rh_keys:
bad_key = (
"{0} is not a valid key for rh_subscription. "
"Valid keys are: "
"{1}".format(k, ", ".join(self.valid_rh_keys))
)
return False, bad_key
# Check for bad auto-attach value
if (self.auto_attach is not None) and not (
util.is_true(self.auto_attach) or util.is_false(self.auto_attach)
):
not_bool = (
"The key auto-attach must be a boolean value (True/False "
)
return False, not_bool
if (self.servicelevel is not None) and (
(not self.auto_attach) or (util.is_false(str(self.auto_attach)))
):
no_auto = (
"The service-level key must be used in conjunction "
"with the auto-attach key. Please re-run with "
"auto-attach: True"
)
return False, no_auto
return True, None
def is_registered(self):
"""
Checks if the system is already registered and returns
True if so, else False
"""
cmd = ["identity"]
try:
_sub_man_cli(cmd)
except subp.ProcessExecutionError:
return False
return True
def rhn_register(self):
"""
Registers the system by userid and password or activation key
and org. Returns True when successful False when not.
"""
if (self.activation_key is not None) and (self.org is not None):
# register by activation key
cmd = [
"register",
"--activationkey={0}".format(self.activation_key),
"--org={0}".format(self.org),
]
# If the baseurl and/or server url are passed in, we register
# with them.
if self.rhsm_baseurl is not None:
cmd.append("--baseurl={0}".format(self.rhsm_baseurl))
if self.server_hostname is not None:
cmd.append("--serverurl={0}".format(self.server_hostname))
try:
return_out = _sub_man_cli(cmd, logstring_val=True)[0]
except subp.ProcessExecutionError as e:
if e.stdout == "":
self.log_warn(
"Registration failed due to: {0}".format(e.stderr)
)
return False
elif (self.userid is not None) and (self.password is not None):
# register by username and password
cmd = [
"register",
"--username={0}".format(self.userid),
"--password={0}".format(self.password),
]
# If the baseurl and/or server url are passed in, we register
# with them.
if self.rhsm_baseurl is not None:
cmd.append("--baseurl={0}".format(self.rhsm_baseurl))
if self.server_hostname is not None:
cmd.append("--serverurl={0}".format(self.server_hostname))
# Attempting to register the system only
try:
return_out = _sub_man_cli(cmd, logstring_val=True)[0]
except subp.ProcessExecutionError as e:
if e.stdout == "":
self.log_warn(
"Registration failed due to: {0}".format(e.stderr)
)
return False
else:
self.log_warn(
"Unable to register system due to incomplete information."
)
self.log_warn(
"Use either activationkey and org *or* userid and password"
)
return False
reg_id = return_out.split("ID: ")[1].rstrip()
self.log.debug("Registered successfully with ID %s", reg_id)
return True
def _set_service_level(self):
cmd = [
"attach",
"--auto",
"--servicelevel={0}".format(self.servicelevel),
]
try:
return_out = _sub_man_cli(cmd)[0]
except subp.ProcessExecutionError as e:
if e.stdout.rstrip() != "":
for line in e.stdout.split("\n"):
if line != "":
self.log_warn(line)
else:
self.log_warn(
"Setting the service level failed with: {0}".format(
e.stderr.strip()
)
)
return False
for line in return_out.split("\n"):
if line != "":
self.log.debug(line)
return True
def _set_auto_attach(self):
cmd = ["attach", "--auto"]
try:
return_out = _sub_man_cli(cmd)[0]
except subp.ProcessExecutionError as e:
self.log_warn("Auto-attach failed with: {0}".format(e))
return False
for line in return_out.split("\n"):
if line != "":
self.log.debug(line)
return True
def _getPools(self):
"""
Gets the list pools for the active subscription and returns them
in list form.
"""
available = []
consumed = []
# Get all available pools
cmd = ["list", "--available", "--pool-only"]
results = _sub_man_cli(cmd)[0]
available = (results.rstrip()).split("\n")
# Get all consumed pools
cmd = ["list", "--consumed", "--pool-only"]
results = _sub_man_cli(cmd)[0]
consumed = (results.rstrip()).split("\n")
return available, consumed
def _getRepos(self):
"""
Obtains the current list of active yum repositories and returns
them in list form.
"""
cmd = ["repos", "--list-enabled"]
return_out = _sub_man_cli(cmd)[0]
active_repos = []
for repo in return_out.split("\n"):
if "Repo ID:" in repo:
active_repos.append((repo.split(":")[1]).strip())
cmd = ["repos", "--list-disabled"]
return_out = _sub_man_cli(cmd)[0]
inactive_repos = []
for repo in return_out.split("\n"):
if "Repo ID:" in repo:
inactive_repos.append((repo.split(":")[1]).strip())
return active_repos, inactive_repos
def addPool(self, pools):
"""
Takes a list of subscription pools and "attaches" them to the
current subscription
"""
# An empty list was passed
if len(pools) == 0:
self.log.debug("No pools to attach")
return True
pool_available, pool_consumed = self._getPools()
pool_list = []
cmd = ["attach"]
for pool in pools:
if (pool not in pool_consumed) and (pool in pool_available):
pool_list.append("--pool={0}".format(pool))
else:
self.log_warn("Pool {0} is not available".format(pool))
if len(pool_list) > 0:
cmd.extend(pool_list)
try:
_sub_man_cli(cmd)
self.log.debug(
"Attached the following pools to your system: %s",
(", ".join(pool_list)).replace("--pool=", ""),
)
return True
except subp.ProcessExecutionError as e:
self.log_warn(
"Unable to attach pool {0} due to {1}".format(pool, e)
)
return False
def update_repos(self):
"""
Takes a list of yum repo ids that need to be disabled or enabled; then
it verifies if they are already enabled or disabled and finally
executes the action to disable or enable
"""
erepos = self.enable_repo
drepos = self.disable_repo
if erepos is None:
erepos = []
if drepos is None:
drepos = []
if not isinstance(erepos, list):
self.log_warn("Repo IDs must in the format of a list.")
return False
if not isinstance(drepos, list):
self.log_warn("Repo IDs must in the format of a list.")
return False
# Bail if both lists are not populated
if (len(erepos) == 0) and (len(drepos) == 0):
self.log.debug("No repo IDs to enable or disable")
return True
active_repos, inactive_repos = self._getRepos()
# Creating a list of repoids to be enabled
enable_list = []
enable_list_fail = []
for repoid in erepos:
if repoid in inactive_repos:
enable_list.append("--enable={0}".format(repoid))
else:
enable_list_fail.append(repoid)
# Creating a list of repoids to be disabled
disable_list = []
disable_list_fail = []
for repoid in drepos:
if repoid in active_repos:
disable_list.append("--disable={0}".format(repoid))
else:
disable_list_fail.append(repoid)
# Logging any repos that are already enabled or disabled
if len(enable_list_fail) > 0:
for fail in enable_list_fail:
# Check if the repo exists or not
if fail in active_repos:
self.log.debug("Repo %s is already enabled", fail)
else:
self.log_warn(
"Repo {0} does not appear to exist".format(fail)
)
if len(disable_list_fail) > 0:
for fail in disable_list_fail:
self.log.debug(
"Repo %s not disabled because it is not enabled", fail
)
cmd = ["repos"]
if len(disable_list) > 0:
cmd.extend(disable_list)
if len(enable_list) > 0:
cmd.extend(enable_list)
try:
_sub_man_cli(cmd)
except subp.ProcessExecutionError as e:
self.log_warn("Unable to alter repos due to {0}".format(e))
return False
if len(enable_list) > 0:
self.log.debug(
"Enabled the following repos: %s",
(", ".join(enable_list)).replace("--enable=", ""),
)
if len(disable_list) > 0:
self.log.debug(
"Disabled the following repos: %s",
(", ".join(disable_list)).replace("--disable=", ""),
)
return True
def is_configured(self):
return bool((self.userid and self.password) or self.activation_key)
def _sub_man_cli(cmd, logstring_val=False):
"""
Uses the preferred cloud-init subprocess def of subp.subp
and runs subscription-manager. Breaking this to a
separate function for later use in mocking and unittests
"""
return subp.subp(["subscription-manager"] + cmd, logstring=logstring_val)
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