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authorAlexander Bokovoy <abokovoy@redhat.com>2011-10-10 12:25:15 (GMT)
committerMartin Kosek <mkosek@redhat.com>2011-10-24 13:07:27 (GMT)
commit95d6a2256c6039c704fafe8fc5c8c85fb939c972 (patch)
tree585825bd290a15428336ae1594b0aad1f6ee0de2
parent7bde6a7da90dfc5f8953736f27cf9e17e82d14f2 (diff)
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Add support for systemd environments and use it to support Fedora 16
https://fedorahosted.org/freeipa/ticket/1192
-rw-r--r--Makefile2
-rw-r--r--[-rwxr-xr-x]init/SystemV/ipa.init (renamed from ipa.init)0
-rw-r--r--init/systemd/ipa.service14
-rw-r--r--init/systemd/ipa_kpasswd.service10
-rwxr-xr-xinstall/tools/ipactl12
-rw-r--r--ipapython/platform/base.py14
-rw-r--r--ipapython/platform/fedora16.py123
-rw-r--r--ipapython/platform/redhat.py10
-rw-r--r--ipapython/platform/systemd.py204
-rw-r--r--ipaserver/install/cainstance.py4
-rw-r--r--ipaserver/install/dsinstance.py6
-rw-r--r--ipaserver/install/krbinstance.py1
12 files changed, 381 insertions, 19 deletions
diff --git a/Makefile b/Makefile
index 9d88025..3cd08e2 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ PRJ_PREFIX=freeipa
RPMBUILD ?= $(PWD)/rpmbuild
TARGET ?= master
-SUPPORTED_PLATFORM=redhat
+SUPPORTED_PLATFORM ?= redhat
# After updating the version in VERSION you should run the version-update
# target.
diff --git a/ipa.init b/init/SystemV/ipa.init
index ead7df0..ead7df0 100755..100644
--- a/ipa.init
+++ b/init/SystemV/ipa.init
diff --git a/init/systemd/ipa.service b/init/systemd/ipa.service
new file mode 100644
index 0000000..ba27d1d
--- /dev/null
+++ b/init/systemd/ipa.service
@@ -0,0 +1,14 @@
+[Unit]
+Description=Identity, Policy, Audit
+Requires=syslog.target network.target
+After=syslog.target network.target
+
+[Service]
+Type=oneshot
+ExecStart=/usr/sbin/ipactl start
+ExecStop=/usr/sbin/ipactl stop
+RemainAfterExit=yes
+TimeoutSec=0
+
+[Install]
+WantedBy=multi-user.target
diff --git a/init/systemd/ipa_kpasswd.service b/init/systemd/ipa_kpasswd.service
new file mode 100644
index 0000000..17aa463
--- /dev/null
+++ b/init/systemd/ipa_kpasswd.service
@@ -0,0 +1,10 @@
+[Unit]
+Description=IPA Kerberos password service
+Requires=krb5kdc.service
+Wants=krb5kdc.service
+
+[Service]
+Type=forking
+PIDFile=/var/run/ipa_kpasswd.pid
+ExecStart=/usr/sbin/ipa_kpasswd
+
diff --git a/install/tools/ipactl b/install/tools/ipactl
index 4055cf9..808849f 100755
--- a/install/tools/ipactl
+++ b/install/tools/ipactl
@@ -24,7 +24,7 @@ try:
from ipaserver.install import service
from ipapython import services as ipaservices
from ipaserver.install.dsinstance import config_dirname, realm_to_serverid
- from ipaserver.install.installutils import is_ipa_configured
+ from ipaserver.install.installutils import is_ipa_configured, wait_for_open_ports, wait_for_open_socket
from ipapython import sysrestore
from ipapython import config
from ipalib import api, errors
@@ -32,6 +32,7 @@ try:
import logging
import ldap
import ldap.sasl
+ import ldapurl
import socket
except ImportError:
print >> sys.stderr, """\
@@ -117,6 +118,15 @@ def get_config():
attrs = ['cn', 'ipaConfigString']
try:
+ # systemd services are so fast that we come here before
+ # Directory Server actually starts listening. Wait for
+ # the socket/port be really available.
+ lurl = ldapurl.LDAPUrl(api.env.ldap_uri)
+ if lurl.urlscheme == 'ldapi':
+ wait_for_open_socket(lurl.hostport, timeout=6)
+ else:
+ (host,port) = lurl.hostport.split(':')
+ wait_for_open_ports(host, [int(port)], timeout=6)
con = ldap.initialize(api.env.ldap_uri)
con.sasl_interactive_bind_s('', SASL_EXTERNAL)
res = con.search_st(base,
diff --git a/ipapython/platform/base.py b/ipapython/platform/base.py
index f9d4099..99189a1 100644
--- a/ipapython/platform/base.py
+++ b/ipapython/platform/base.py
@@ -22,7 +22,7 @@ from ipalib.plugable import MagicDict
# set them as in Red Hat distributions. Actual implementation should make them available
# through knownservices.<name> and take care of remapping internally, if needed
wellknownservices = ['certmonger', 'dirsrv', 'httpd', 'ipa', 'krb5kdc', 'messagebus',
- 'nslcd', 'nscd', 'ntpd', 'portmap', 'rpcbind']
+ 'nslcd', 'nscd', 'ntpd', 'portmap', 'rpcbind', 'kadmin']
class AuthConfig(object):
"""
@@ -120,25 +120,25 @@ class PlatformService(object):
def restart(self, instance_name="", capture_output=True):
return
- def is_running(self):
+ def is_running(self, instance_name=""):
return False
def is_installed(self):
return False
- def is_enabled(self):
+ def is_enabled(self, instance_name=""):
return False
- def enable(self):
+ def enable(self, instance_name=""):
return
- def disable(self):
+ def disable(self, instance_name=""):
return
- def install(self):
+ def install(self, instance_name=""):
return
- def remove(self):
+ def remove(self, instance_name=""):
return
class KnownServices(MagicDict):
diff --git a/ipapython/platform/fedora16.py b/ipapython/platform/fedora16.py
new file mode 100644
index 0000000..0e47692
--- /dev/null
+++ b/ipapython/platform/fedora16.py
@@ -0,0 +1,123 @@
+# 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/>.
+#
+
+from ipapython import ipautil
+from ipapython.platform import base, redhat, systemd
+import os
+
+# All what we allow exporting directly from this module
+# Everything else is made available through these symbols when they directly imported into ipapython.services:
+# authconfig -- class reference for platform-specific implementation of authconfig(8)
+# service -- class reference for platform-specific implementation of a PlatformService class
+# knownservices -- factory instance to access named services IPA cares about, names are ipapython.services.wellknownservices
+# backup_and_replace_hostname -- platform-specific way to set hostname and make it persistent over reboots
+# restore_context -- platform-sepcific way to restore security context, if applicable
+__all__ = ['authconfig', 'service', 'knownservices', 'backup_and_replace_hostname', 'restore_context']
+
+# 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))
+
+# Rewrite dirsrv and pki-cad services as they support instances via separate service generator
+# To make this working, one needs to have both foo@.service and foo.target -- the latter is used
+# when request should be coming for all instances (like stop). systemd, unfortunately, does not allow
+# 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'
+# Our PKI instance is pki-cad@pki-ca.service
+system_units['pki-cad'] = 'pki-cad@pki-ca.service'
+
+class Fedora16Service(systemd.SystemdService):
+ def __init__(self, service_name):
+ if service_name in system_units:
+ service_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
+ service_name = "%s.service" % (service_name)
+ super(Fedora16Service, self).__init__(service_name)
+
+# Special handling of directory server service
+# LimitNOFILE needs to be increased or any value set in the directory for this value will fail
+# Read /lib/systemd/system/dirsrv@.service for details.
+# We do modification of LimitNOFILE on service.enable() but we also need to explicitly enable instances
+# to install proper symlinks as dirsrv.target.wants/ dependencies. 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)
+ srv_etc = os.path.join(self.SYSTEMD_ETC_PATH, self.service_name)
+ if os.path.exists(srv_etc):
+ # We need to enable LimitNOFILE=8192 in the dirsrv@.service
+ # We rely on the fact that [Service] section is the last one
+ # and if variable is not there, it will be added as the last line
+ replacevars = {'LimitNOFILE':'8192'}
+ ipautil.config_replace_variables(srv_etc, replacevars=replacevars)
+ redhat.restore_context(srv_etc)
+ ipautil.run(["/bin/systemctl", "--system", "daemon-reload"],raiseonerr=False)
+
+ def restart(self, instance_name="", capture_output=True):
+ if len(instance_name) > 0:
+ elements = self.service_name.split("@")
+ srv_etc = os.path.join(self.SYSTEMD_ETC_PATH, self.service_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)
+
+# 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)
+
+# 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)
+ 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)
+
+authconfig = redhat.authconfig
+service = f16_service
+knownservices = Fedora16Services()
+restore_context = redhat.restore_context
+backup_and_replace_hostname = redhat.backup_and_replace_hostname
diff --git a/ipapython/platform/redhat.py b/ipapython/platform/redhat.py
index 5ac3106..d99a917 100644
--- a/ipapython/platform/redhat.py
+++ b/ipapython/platform/redhat.py
@@ -66,20 +66,20 @@ class RedHatService(base.PlatformService):
installed = False
return installed
- def is_enabled(self):
+ def is_enabled(self, instance_name=""):
(stdout, stderr, returncode) = ipautil.run(["/sbin/chkconfig", self.service_name],raiseonerr=False)
return (returncode == 0)
- def enable(self):
+ def enable(self, instance_name=""):
ipautil.run(["/sbin/chkconfig", self.service_name, "on"])
- def disable(self):
+ def disable(self, instance_name=""):
ipautil.run(["/sbin/chkconfig", self.service_name, "off"])
- def install(self):
+ def install(self, instance_name=""):
ipautil.run(["/sbin/chkconfig", "--add", self.service_name])
- def remove(self):
+ def remove(self, instance_name=""):
ipautil.run(["/sbin/chkconfig", "--del", self.service_name])
class RedHatAuthConfig(base.AuthConfig):
diff --git a/ipapython/platform/systemd.py b/ipapython/platform/systemd.py
new file mode 100644
index 0000000..3f1fe73
--- /dev/null
+++ b/ipapython/platform/systemd.py
@@ -0,0 +1,204 @@
+# 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/>.
+#
+
+from ipapython import ipautil
+from ipapython.platform import base
+import sys, os, shutil
+
+class SystemdService(base.PlatformService):
+ SYSTEMD_ETC_PATH = "/etc/systemd/system/"
+ SYSTEMD_LIB_PATH = "/lib/systemd/system/"
+ SYSTEMD_SRV_TARGET = "%s.target.wants"
+
+ def __init__(self, service_name):
+ super(SystemdService, self).__init__(service_name)
+ self.lib_path = os.path.join(self.SYSTEMD_LIB_PATH, self.service_name)
+ self.lib_path_exists = None
+
+ def service_instance(self, instance_name):
+ if self.lib_path_exists is None:
+ self.lib_path_exists = os.path.exists(self.lib_path)
+
+ elements = self.service_name.split("@")
+
+ # Short-cut: if there is already exact service name, return it
+ if self.lib_path_exists and len(instance_name) == 0:
+ if len(elements) == 1:
+ # service name is like pki-cad.target or krb5kdc.service
+ return self.service_name
+ if len(elements) > 1 and elements[1][0] != '.':
+ # Service name is like pki-cad@pki-ca.service and that file exists
+ return self.service_name
+
+ if len(elements) > 1:
+ # We have dynamic service
+ if len(instance_name) > 0:
+ # Instanciate dynamic service
+ return "%s@%s.service" % (elements[0], instance_name)
+ else:
+ # No instance name, try with target
+ tgt_name = "%s.target" % (elements[0])
+ srv_lib = os.path.join(self.SYSTEMD_LIB_PATH, tgt_name)
+ if os.path.exists(srv_lib):
+ return tgt_name
+
+ return self.service_name
+
+ def parse_variables(self, text, separator=None):
+ """
+ Parses 'systemctl show' output and returns a dict[variable]=value
+ Arguments: text -- 'systemctl show' output as string
+ separator -- optional (defaults to None), what separates the key/value pairs in the text
+ """
+ def splitter(x, separator=None):
+ if len(x) > 1:
+ y = x.split(separator)
+ return (y[0], y[-1])
+ return (None,None)
+ return dict(map(lambda x: splitter(x, separator=separator), text.split("\n")))
+
+ def stop(self, instance_name="", capture_output=True):
+ ipautil.run(["/bin/systemctl", "stop", self.service_instance(instance_name)], capture_output=capture_output)
+
+ def start(self, instance_name="", capture_output=True):
+ ipautil.run(["/bin/systemctl", "start", self.service_instance(instance_name)], capture_output=capture_output)
+
+ def restart(self, instance_name="", capture_output=True):
+ # Restart command is broken before systemd-36-3.fc16
+ # If you have older systemd version, restart of dependent services will hang systemd indefinetly
+ ipautil.run(["/bin/systemctl", "restart", self.service_instance(instance_name)], capture_output=capture_output)
+
+ def is_running(self, instance_name=""):
+ ret = True
+ try:
+ (sout, serr, rcode) = ipautil.run(["/bin/systemctl", "is-active", self.service_instance(instance_name)],capture_output=True)
+ if rcode != 0:
+ ret = False
+ except ipautil.CalledProcessError:
+ ret = False
+ return ret
+
+ def is_installed(self):
+ installed = True
+ try:
+ (sout,serr,rcode) = ipautil.run(["/bin/systemctl", "list-unit-files", "--full"])
+ if rcode != 0:
+ installed = False
+ else:
+ svar = self.parse_variables(sout)
+ if not self.service_instance("") in svar:
+ # systemd doesn't show the service
+ installed = False
+ except ipautil.CalledProcessError, e:
+ installed = False
+ return installed
+
+ def is_enabled(self, instance_name=""):
+ enabled = True
+ try:
+ (sout,serr,rcode) = ipautil.run(["/bin/systemctl", "is-enabled", self.service_instance(instance_name)])
+ if rcode != 0:
+ enabled = False
+ except ipautil.CalledProcessError, e:
+ enabled = False
+ return enabled
+
+ def enable(self, instance_name=""):
+ if self.lib_path_exists is None:
+ self.lib_path_exists = os.path.exists(self.lib_path)
+ elements = self.service_name.split("@")
+ l = len(elements)
+
+ if self.lib_path_exists and (l > 1 and elements[1][0] != '.'):
+ # There is explicit service unit supporting this instance, follow normal systemd enabler
+ self.__enable(instance_name)
+ return
+
+ if self.lib_path_exists and (l == 1):
+ # There is explicit service unit which does not support the instances, ignore instance
+ self.__enable()
+ return
+
+ if len(instance_name) > 0 and l > 1:
+ # New instance, we need to do following:
+ # 1. Copy <service>@.service to /etc/systemd/system/ if it is not there
+ # 2. Make /etc/systemd/system/<service>.target.wants/ if it is not there
+ # 3. Link /etc/systemd/system/<service>.target.wants/<service>@<instance_name>.service to
+ # /etc/systemd/system/<service>@.service
+ srv_etc = os.path.join(self.SYSTEMD_ETC_PATH, self.service_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))
+ try:
+ if not ipautil.file_exists(srv_etc):
+ shutil.copy(self.lib_path, srv_etc)
+ if not ipautil.dir_exists(srv_tgt):
+ os.mkdir(srv_tgt)
+ if os.path.exists(srv_lnk):
+ # Remove old link
+ os.unlink(srv_lnk)
+ if not os.path.exists(srv_lnk):
+ # object does not exist _or_ is a broken link
+ if not os.path.islink(srv_lnk):
+ # if it truly does not exist, make a link
+ os.symlink(srv_etc, srv_lnk)
+ else:
+ # Link exists and it is broken, make new one
+ os.unlink(srv_lnk)
+ os.symlink(srv_etc, srv_lnk)
+ ipautil.run(["/bin/systemctl", "--system", "daemon-reload"])
+ except:
+ pass
+ else:
+ self.__enable(instance_name)
+
+ def disable(self, instance_name=""):
+ elements = self.service_name.split("@")
+ if instance_name != "" and len(elements) > 1:
+ # Remove instance, we need to do following:
+ # Remove link from /etc/systemd/system/<service>.target.wants/<service>@<instance_name>.service
+ # to /etc/systemd/system/<service>@.service
+ 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))
+ try:
+ if ipautil.dir_exists(srv_tgt):
+ if os.path.islink(srv_lnk):
+ os.unlink(srv_lnk)
+ ipautil.run(["/bin/systemctl", "--system", "daemon-reload"])
+ except:
+ pass
+ else:
+ self.__disable(instance_name)
+
+ def __enable(self, instance_name=""):
+ try:
+ ipautil.run(["/bin/systemctl", "enable", self.service_instance(instance_name)])
+ except ipautil.CalledProcessError, e:
+ pass
+
+ def __disable(self, instance_name=""):
+ try:
+ ipautil.run(["/bin/systemctl", "disable", self.service_instance(instance_name)])
+ except ipautil.CalledProcessError, e:
+ pass
+
+ def install(self):
+ self.enable()
+
+ def remove(self):
+ self.disable()
diff --git a/ipaserver/install/cainstance.py b/ipaserver/install/cainstance.py
index c819957..fed4b2c 100644
--- a/ipaserver/install/cainstance.py
+++ b/ipaserver/install/cainstance.py
@@ -375,7 +375,7 @@ class CADSInstance(service.Service):
def restart_instance(self):
try:
ipaservices.knownservices.dirsrv.restart(self.serverid)
- if not dsinstance.is_ds_running():
+ if not dsinstance.is_ds_running(self.serverid):
logging.critical("Failed to restart the directory server. See the installation log for details.")
sys.exit(1)
except Exception:
@@ -693,7 +693,7 @@ class CAInstance(service.Service):
def __restart_instance(self):
try:
- self.restart()
+ self.restart(PKI_INSTANCE_NAME)
installutils.wait_for_open_ports('localhost', 9180, 300)
except Exception:
# TODO: roll back here?
diff --git a/ipaserver/install/dsinstance.py b/ipaserver/install/dsinstance.py
index cd2a216..e71de62 100644
--- a/ipaserver/install/dsinstance.py
+++ b/ipaserver/install/dsinstance.py
@@ -107,8 +107,8 @@ def check_ports():
ds_secure = installutils.port_available(636)
return (ds_unsecure, ds_secure)
-def is_ds_running():
- return ipaservices.knownservices.dirsrv.is_running()
+def is_ds_running(server_id=''):
+ return ipaservices.knownservices.dirsrv.is_running(instance_name=server_id)
def has_managed_entries(host_name, dm_password):
"""Check to see if the Managed Entries plugin is available"""
@@ -411,7 +411,7 @@ class DsInstance(service.Service):
def restart(self, instance=''):
try:
super(DsInstance, self).restart(instance)
- if not is_ds_running():
+ if not is_ds_running(instance):
logging.critical("Failed to restart the directory server. See the installation log for details.")
sys.exit(1)
installutils.wait_for_open_ports('localhost', self.open_ports, 300)
diff --git a/ipaserver/install/krbinstance.py b/ipaserver/install/krbinstance.py
index 70cbe62..b4f0a54 100644
--- a/ipaserver/install/krbinstance.py
+++ b/ipaserver/install/krbinstance.py
@@ -488,6 +488,7 @@ class KrbInstance(service.Service):
self.fstore.backup_file("/etc/dirsrv/ds.keytab")
installutils.create_keytab("/etc/dirsrv/ds.keytab", ldap_principal)
+ update_key_val_in_file("/etc/sysconfig/dirsrv", "KRB5_KTNAME", "/etc/dirsrv/ds.keytab")
update_key_val_in_file("/etc/sysconfig/dirsrv", "export KRB5_KTNAME", "/etc/dirsrv/ds.keytab")
pent = pwd.getpwnam(dsinstance.DS_USER)
os.chown("/etc/dirsrv/ds.keytab", pent.pw_uid, pent.pw_gid)