"""Spicerack package."""
import os
from socket import gethostname
from pkg_resources import DistributionNotFound, get_distribution
from spicerack import interactive, puppet
from spicerack.administrative import Reason
from spicerack.confctl import Confctl
from spicerack.config import load_ini_config
from spicerack.debmonitor import Debmonitor
from spicerack.dns import Dns
from spicerack.dnsdisc import Discovery
from spicerack.elasticsearch_cluster import create_elasticsearch_clusters
from spicerack.icinga import Icinga, ICINGA_DOMAIN
from spicerack.ipmi import Ipmi
from spicerack.log import irc_logger
from spicerack.management import Management
from spicerack.mediawiki import MediaWiki
from spicerack.mysql import Mysql
from spicerack.phabricator import create_phabricator
from spicerack.redis_cluster import RedisCluster
from spicerack.remote import Remote
try:
__version__ = get_distribution('wikimedia-spicerack').version # Must be the same used as 'name' in setup.py
""":py:class:`str`: the version of the current Spicerack module."""
except DistributionNotFound: # pragma: no cover - this should never happen during tests
pass # package is not installed
[docs]class Spicerack:
"""Spicerack service locator."""
def __init__(self, *, verbose=False, dry_run=True, cumin_config='/etc/cumin/config.yaml',
conftool_config='/etc/conftool/config.yaml', conftool_schema='/etc/conftool/schema.yaml',
debmonitor_config='/etc/debmonitor.conf',
spicerack_config_dir='/etc/spicerack'):
"""Initialize the service locator for the Spicerack library.
Arguments:
verbose (bool, optional): whether to set the verbose mode.
dry_run (bool, optional): whether this is a DRY-RUN.
cumin_config (str, optional): the path to Cumin's configuration file.
conftool_config (str, optional): the path to Conftool's configuration file.
conftool_schema (str, optional): the path to Conftool's schema file.
debmonitor_config (str, optional): the path to Debmonitor's INI configuration file. It must have at least
the following schema::
[DEFAULT]
server=debmonitor.example.com
cert=/etc/debmonitor/ssl/cert.pem
key=/etc/debmonitor/ssl/server.key
spicerack_config_dir (str, optional): the path for the root configuration directory for Spicerack.
Module-specific configuration will be loaded from `config_dir/module_name/`.
"""
# Attributes
self._verbose = verbose
self._dry_run = dry_run
self._cumin_config = cumin_config
self._conftool_config = conftool_config
self._conftool_schema = conftool_schema
self._debmonitor_config = debmonitor_config
self._spicerack_config_dir = spicerack_config_dir
self._username = interactive.get_username()
self._current_hostname = gethostname()
self._irc_logger = irc_logger
self._confctl = None
@property
def dry_run(self):
"""Getter for the ``dry_run`` property.
Returns:
bool: True if the DRY-RUN mode is set, False otherwise.
"""
return self._dry_run
@property
def verbose(self):
"""Getter for the ``verbose`` property.
Returns:
bool: True if the verbose mode is set, False otherwise.
"""
return self._verbose
@property
def username(self):
"""Getter for the current username.
Returns:
str: the name of the effective running user.
"""
return self._username
@property
def irc_logger(self):
"""Getter for the ``irc_logger`` property.
Returns:
logging.Logger: the logger instance to write to IRC.
"""
return self._irc_logger
@property
def icinga_master_host(self):
"""Getter for the ``icinga_master_host`` property.
Returns:
spicerack.remote.RemoteHosts: the instance to execute commands on the Icinga master host.
"""
return self.remote().query(self.dns().resolve_cname(ICINGA_DOMAIN))
[docs] def remote(self):
"""Get a Remote instance.
Returns:
spicerack.remote.Remote: the Remote instance.
"""
return Remote(self._cumin_config, dry_run=self._dry_run)
[docs] def confctl(self, entity_name):
"""Access a Conftool specific entity instance.
Arguments:
entity_name (str): the name of a Conftool entity. Possible values: ``node``, ``service``, ``discovery``,
``mwconfig``.
Returns:
spicerack.confctl.ConftoolEntity: the confctl entity instance.
"""
if self._confctl is None:
self._confctl = Confctl(config=self._conftool_config, schema=self._conftool_schema, dry_run=self._dry_run)
return self._confctl.entity(entity_name)
[docs] def dns(self): # pylint: disable=no-self-use
"""Get a Dns instance.
Returns:
spicerack.dns.Dns: a Dns instance that will use the operating system default namserver(s).
"""
return Dns()
[docs] def discovery(self, *records):
"""Get a Discovery instance.
Arguments:
*records (str): arbitrary positional arguments, each one must be a Discovery DNS record name.
Returns:
spicerack.dnsdisc.Discovery: the pre-configured Discovery instance for the given records.
"""
return Discovery(self.confctl('discovery'), self.remote(), records, dry_run=self._dry_run)
[docs] def mysql(self):
"""Get a Mysql instance.
Returns:
spicerack.mysql.Mysql: the Mysql instance.
"""
return Mysql(self.remote(), dry_run=self._dry_run)
[docs] def redis_cluster(self, cluster):
"""Get a RedisCluster instance.
Arguments:
cluster (str): the name of the cluster.
Returns:
spicerack.redis_cluster.RedisCluster: the cluster instance.
"""
return RedisCluster(cluster, os.path.join(self._spicerack_config_dir, 'redis_cluster'), dry_run=self._dry_run)
[docs] def elasticsearch_clusters(self, clustergroup):
"""Get an ElasticsearchClusters instance.
Arguments:
clustergroup (str): name of cluster group e.g ``search_eqiad``.
Returns:
spicerack.elasticsearch_cluster.ElasticsearchClusters: ElasticsearchClusters instance.
"""
return create_elasticsearch_clusters(clustergroup, self.remote(), dry_run=self._dry_run)
[docs] def admin_reason(self, reason, task_id=None):
"""Get an administrative Reason instance.
Arguments:
reason (str): the reason to use to justify an administrative action. See `spicerack.administrative.Reason`
for all the details.
task_id (str, optional): the task ID to mention in the reason.
Returns:
spicerack.administrative.Reason: the administrative Reason instance.
"""
return Reason(reason, self._username, self._current_hostname, task_id=task_id)
[docs] def icinga(self):
"""Get an Icinga instance.
Returns:
spicerack.icinga.Icinga: Icinga instance.
"""
return Icinga(self.icinga_master_host)
[docs] def puppet(self, remote_hosts): # pylint: disable=no-self-use
"""Get a PuppetHosts instance for the given remote hosts.
Arguments:
remote_hosts (spicerack.remote.RemoteHosts): the instance with the target hosts.
Returns:
spicerack.puppet.PuppetHosts: the instance to manage Puppet on the target hosts.
"""
return puppet.PuppetHosts(remote_hosts)
[docs] def puppet_master(self):
"""Get a PuppetMaster instance to manage hosts and certificates from a Puppet master.
Returns:
spicerack.puppet.PuppetMaster: the instance to manage Puppet hosts and certificates.
"""
return puppet.PuppetMaster(self.remote().query(puppet.get_puppet_ca_hostname()))
[docs] def ipmi(self):
"""Get an Ipmi instance to send remote IPMI commands to management consoles.
Returns:
spicerack.ipmi.Ipmi: the instance to run ipmitool commands.
"""
return Ipmi(interactive.get_management_password(), dry_run=self._dry_run)
[docs] def phabricator(self, bot_config_file, section='phabricator_bot'):
"""Get a Phabricator instance to interact with a Phabricator website.
Arguments:
bot_config_file (str): the path to the configuration file for the Phabricator bot, with the following
structure::
[section_name]
host = https://phabricator.example.org/api/
username = phab-bot
token = api-12345
section (str, optional): the name of the section of the configuration file where to find the required
parameters.
Returns:
spicerack.phabricator.Phabricator: the instance.
"""
# Allow to specify the configuration file as opposed to other methods so that different clients can use
# different Phabricator BOT accounts, potentially with different permissions.
return create_phabricator(bot_config_file, section=section, dry_run=self._dry_run)
[docs] def debmonitor(self):
"""Get a Debmonitor instance to interact with a Debmonitor website.
Returns:
spicerack.debmonitor.Debmonitor: the instance.
Raises:
KeyError: if any configuration option is missing.
"""
options = load_ini_config(self._debmonitor_config).defaults()
return Debmonitor(options['server'], options['cert'], options['key'], dry_run=self._dry_run)
[docs] def management(self):
"""Get a Management instance to interact with the management interfaces.
Returns:
spicerack.management.Management: the instance.
"""
return Management(self.dns())