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Diffstat (limited to 'ipapython/platform/fedora16/service.py')
| -rw-r--r-- | ipapython/platform/fedora16/service.py | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/ipapython/platform/fedora16/service.py b/ipapython/platform/fedora16/service.py new file mode 100644 index 00000000..c2e35d32 --- /dev/null +++ b/ipapython/platform/fedora16/service.py @@ -0,0 +1,179 @@ +# Author: Alexander Bokovoy <abokovoy@redhat.com> +# +# Copyright (C) 2011 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 <http://www.gnu.org/licenses/>. +# + +import os +import time + +from ipapython import ipautil, dogtag +from ipapython.platform import base, redhat +from ipapython.platform.base import systemd +from ipapython.platform.fedora16 import selinux +from ipapython.ipa_log_manager import root_logger +from ipalib import api + +# 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(map(lambda x: (x, "%s.service" % (x)), base.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'] + +class Fedora16Service(systemd.SystemdService): + def __init__(self, service_name): + systemd_name = service_name + if service_name in system_units: + systemd_name = system_units[service_name] + else: + if len(service_name.split('.')) == 1: + # 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(Fedora16Service, self).__init__(service_name, systemd_name) + +# Special handling of directory server service +# +# 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(). +class Fedora16DirectoryService(Fedora16Service): + def enable(self, instance_name=""): + super(Fedora16DirectoryService, self).enable(instance_name) + dirsrv_systemd = "/etc/sysconfig/dirsrv.systemd" + if os.path.exists(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':'8192'} + ipautil.inifile_replace_variables(dirsrv_systemd, 'service', replacevars=replacevars) + selinux.restore_context(dirsrv_systemd) + ipautil.run(["/bin/systemctl", "--system", "daemon-reload"],raiseonerr=False) + + def restart(self, instance_name="", capture_output=True, wait=True): + if len(instance_name) > 0: + elements = self.systemd_name.split("@") + srv_etc = os.path.join(self.SYSTEMD_ETC_PATH, self.systemd_name) + srv_tgt = os.path.join(self.SYSTEMD_ETC_PATH, 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(Fedora16DirectoryService, self).restart(instance_name, capture_output=capture_output, wait=wait) + +# 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. +class Fedora16IPAService(Fedora16Service): + def enable(self, instance_name=""): + super(Fedora16IPAService, self).enable(instance_name) + self.restart(instance_name) + +class Fedora16SSHService(Fedora16Service): + def get_config_dir(self, instance_name=""): + return '/etc/ssh' + +class Fedora16CAService(Fedora16Service): + 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 + if not os.path.exists('/etc/httpd/conf.d/ipa.conf'): + root_logger.debug( + 'The httpd proxy is not installed, skipping wait for CA') + return + if dogtag.install_constants.DOGTAG_VERSION < 10: + # The server status information isn't available on DT 9 + root_logger.debug('Using Dogtag 9, skipping wait for CA') + return + root_logger.debug('Waiting until the CA is running') + timeout = api.env.startup_timeout + op_timeout = time.time() + timeout + while time.time() < op_timeout: + status = dogtag.ca_status() + 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(Fedora16CAService, 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(Fedora16CAService, self).restart( + instance_name, capture_output=capture_output, wait=wait) + if wait: + self.__wait_until_running() + +# Redirect directory server service through special sub-class due to its +# special handling of instances +def f16_service(name): + if name == 'dirsrv': + return Fedora16DirectoryService(name) + if name == 'ipa': + return Fedora16IPAService(name) + if name == 'sshd': + return Fedora16SSHService(name) + if name in ('pki-cad', 'pki_cad', 'pki-tomcatd', 'pki_tomcatd'): + return Fedora16CAService(name) + return Fedora16Service(name) + +class Fedora16Services(base.KnownServices): + def __init__(self): + services = dict() + for s in base.wellknownservices: + services[s] = f16_service(s) + # Call base class constructor. This will lock services to read-only + super(Fedora16Services, self).__init__(services) |