# Author: Alexander Bokovoy # Tomas Babej # # Copyright (C) 2011-2014 Red Hat # see file 'COPYING' for use and warranty information # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # """ Contains Fedora-specific service class implementations. """ import os import time from ipaplatform.tasks import tasks from ipaplatform.base import services as base_services from ipapython import ipautil, dogtag from ipapython.ipa_log_manager import root_logger from ipalib import api from ipaplatform.paths import paths # Mappings from service names as FreeIPA code references to these services # to their actual systemd service names # For beginning just remap names to add .service # As more services will migrate to systemd, unit names will deviate and # mapping will be kept in this dictionary system_units = dict((x, "%s.service" % x) for x in base_services.wellknownservices) system_units['rpcgssd'] = 'nfs-secure.service' system_units['rpcidmapd'] = 'nfs-idmap.service' # Rewrite dirsrv and pki-tomcatd services as they support instances via separate # service generator. To make this working, one needs to have both foo@.servic # and foo.target -- the latter is used when request should be coming for # all instances (like stop). systemd, unfortunately, does not allow one # to request action for all service instances at once if only foo@.service # unit is available. To add more, if any of those services need to be # started/stopped automagically, one needs to manually create symlinks in # /etc/systemd/system/foo.target.wants/ (look into systemd.py's enable() # code). system_units['dirsrv'] = 'dirsrv@.service' # Our directory server instance for PKI is dirsrv@PKI-IPA.service system_units['pkids'] = 'dirsrv@PKI-IPA.service' # Old style PKI instance system_units['pki-cad'] = 'pki-cad@pki-ca.service' system_units['pki_cad'] = system_units['pki-cad'] # Our PKI instance is pki-tomcatd@pki-tomcat.service system_units['pki-tomcatd'] = 'pki-tomcatd@pki-tomcat.service' system_units['pki_tomcatd'] = system_units['pki-tomcatd'] system_units['ipa-otpd'] = 'ipa-otpd.socket' # Service that sets domainname on Fedora is called fedora-domainname.service system_units['domainname'] = 'fedora-domainname.service' # Service classes that implement Fedora-specific behaviour class FedoraService(base_services.SystemdService): def __init__(self, service_name): systemd_name = service_name if service_name in system_units: systemd_name = system_units[service_name] else: if '.' not in service_name: # if service_name does not have a dot, it is not foo.service # and not a foo.target. Thus, not correct service name for # systemd, default to foo.service style then systemd_name = "%s.service" % (service_name) super(FedoraService, self).__init__(service_name, systemd_name) class FedoraDirectoryService(FedoraService): def tune_nofile_platform(self, num=8192, fstore=None): """ Increase the number of files descriptors available to directory server from the default 1024 to 8192. This will allow to support a greater number of clients out of the box. This is a part of the implementation that is systemd-specific. Returns False if the setting of the nofile limit needs to be skipped. """ if os.path.exists(paths.SYSCONFIG_DIRSRV_SYSTEMD): # We need to enable LimitNOFILE=8192 in the dirsrv@.service # Since 389-ds-base-1.2.10-0.8.a7 the configuration of the # service parameters is performed via # /etc/sysconfig/dirsrv.systemd file which is imported by systemd # into dirsrv@.service unit replacevars = {'LimitNOFILE': str(num)} ipautil.inifile_replace_variables(paths.SYSCONFIG_DIRSRV_SYSTEMD, 'service', replacevars=replacevars) tasks.restore_context(paths.SYSCONFIG_DIRSRV_SYSTEMD) ipautil.run(["/bin/systemctl", "--system", "daemon-reload"], raiseonerr=False) return True def restart(self, instance_name="", capture_output=True, wait=True): # We need to explicitly enable instances to install proper symlinks as # dirsrv.target.wants/ dependencies. Standard systemd service class does it # on enable() method call. Unfortunately, ipa-server-install does not do # explicit dirsrv.enable() because the service startup is handled by ipactl. # # If we wouldn't do this, our instances will not be started as systemd would # not have any clue about instances (PKI-IPA and the domain we serve) # at all. Thus, hook into dirsrv.restart(). if instance_name: elements = self.systemd_name.split("@") srv_etc = os.path.join(paths.ETC_SYSTEMD_SYSTEM_DIR, self.systemd_name) srv_tgt = os.path.join(paths.ETC_SYSTEMD_SYSTEM_DIR, self.SYSTEMD_SRV_TARGET % (elements[0])) srv_lnk = os.path.join(srv_tgt, self.service_instance(instance_name)) if not os.path.exists(srv_etc): self.enable(instance_name) elif not os.path.samefile(srv_etc, srv_lnk): os.unlink(srv_lnk) os.symlink(srv_etc, srv_lnk) super(FedoraDirectoryService, self).restart(instance_name, capture_output=capture_output, wait=wait) class FedoraIPAService(FedoraService): # Enforce restart of IPA services when we do enable it # This gets around the fact that after ipa-server-install systemd thinks # ipa.service is not yet started but all services were actually started # already. def enable(self, instance_name=""): super(FedoraIPAService, self).enable(instance_name) self.restart(instance_name) class FedoraSSHService(FedoraService): def get_config_dir(self, instance_name=""): return '/etc/ssh' class FedoraCAService(FedoraService): def wait_until_running(self): # We must not wait for the httpd proxy if httpd is not set up yet. # Unfortunately, knownservices.httpd.is_installed() can return # false positives, so check for existence of our configuration file. # TODO: Use a cleaner solution use_proxy = True if not (os.path.exists('/etc/httpd/conf.d/ipa.conf') and os.path.exists(paths.HTTPD_IPA_PKI_PROXY_CONF)): root_logger.debug( 'The httpd proxy is not installed, wait on local port') use_proxy = False root_logger.debug('Waiting until the CA is running') timeout = float(api.env.startup_timeout) op_timeout = time.time() + timeout while time.time() < op_timeout: try: status = dogtag.ca_status(use_proxy=use_proxy) except Exception: status = 'check interrupted' root_logger.debug('The CA status is: %s' % status) if status == 'running': break root_logger.debug('Waiting for CA to start...') time.sleep(1) else: raise RuntimeError('CA did not start in %ss' % timeout) def start(self, instance_name="", capture_output=True, wait=True): super(FedoraCAService, self).start( instance_name, capture_output=capture_output, wait=wait) if wait: self.wait_until_running() def restart(self, instance_name="", capture_output=True, wait=True): super(FedoraCAService, self).restart( instance_name, capture_output=capture_output, wait=wait) if wait: self.wait_until_running() # Function that constructs proper Fedora-specific server classes for services # of specified name def fedora_service_class_factory(name): if name == 'dirsrv': return FedoraDirectoryService(name) if name == 'ipa': return FedoraIPAService(name) if name == 'sshd': return FedoraSSHService(name) if name in ('pki-cad', 'pki_cad', 'pki-tomcatd', 'pki_tomcatd'): return FedoraCAService(name) return FedoraService(name) # Magicdict containing FedoraService instances. class FedoraServices(base_services.KnownServices): def __init__(self): services = dict() for s in base_services.wellknownservices: services[s] = fedora_service_class_factory(s) # Call base class constructor. This will lock services to read-only super(FedoraServices, self).__init__(services) # Objects below are expected to be exported by platform module from ipaplatform.base.services import timedate_services service = fedora_service_class_factory knownservices = FedoraServices()