freeipa/ipaserver/install/upgradeinstance.py
Rob Crittenden e5b6260008 Centralize timeout for waiting for servers to start.
All service start/restart currently go through ipapython/platform so
move the "wait for service to start" code there as well.

A dictionary of known services and ports to wait on is defined in base.py
This is referenced by the platforms by instance name to determine what
to wait for. For the case of dirsrv if we get that as a plain name
(no specific instance) it is assumed to be the main IPA service.

https://fedorahosted.org/freeipa/ticket/2375
https://fedorahosted.org/freeipa/ticket/2610
2012-07-02 17:08:58 -04:00

141 lines
5.1 KiB
Python

# Authors: Rob Crittenden <rcritten@redhat.com>
#
# Copyright (C) 2010 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 sys
import shutil
import random
import traceback
from ipapython.ipa_log_manager import *
from ipaserver.install import installutils
from ipaserver.install import dsinstance
from ipaserver.install import ldapupdate
from ipaserver.install import service
DSBASE = '/etc/dirsrv/slapd-'
DSE = 'dse.ldif'
class IPAUpgrade(service.Service):
"""
Update the LDAP data in an instance by turning off all network
listeners and updating over ldapi. This way we know the server is
quiet.
"""
def __init__(self, realm_name, files=[], live_run=True):
"""
realm_name: kerberos realm name, used to determine DS instance dir
files: list of update files to process. If none use UPDATEDIR
live_run: boolean that defines if we are in test or live mode.
"""
ext = ''
rand = random.Random()
for i in range(8):
h = "%02x" % rand.randint(0,255)
ext += h
service.Service.__init__(self, "dirsrv")
serverid = dsinstance.realm_to_serverid(realm_name)
self.filename = '%s%s/%s' % (DSBASE, serverid, DSE)
self.savefilename = '%s%s/%s.ipa.%s' % (DSBASE, serverid, DSE, ext)
self.live_run = live_run
self.files = files
self.modified = False
self.badsyntax = False
self.upgradefailed = False
def start(self, instance_name="", capture_output=True, wait=True):
# Don't wait here because we've turned off port 389. The connection
# we make will wait for the socket.
super(IPAUpgrade, self).start(instance_name, capture_output, wait=False)
def create_instance(self):
self.step("stopping directory server", self.stop)
self.step("saving configuration", self.__save_config)
self.step("disabling listeners", self.__disable_listeners)
self.step("starting directory server", self.start)
self.step("upgrading server", self.__upgrade)
self.step("stopping directory server", self.stop)
self.step("restoring configuration", self.__restore_config)
self.step("starting directory server", self.start)
self.start_creation("Upgrading IPA:")
def __save_config(self):
shutil.copy2(self.filename, self.savefilename)
port = installutils.get_directive(self.filename, 'nsslapd-port',
separator=':')
security = installutils.get_directive(self.filename, 'nsslapd-security',
separator=':')
self.backup_state('nsslapd-port', port)
self.backup_state('nsslapd-security', security)
def __restore_config(self):
port = self.restore_state('nsslapd-port')
security = self.restore_state('nsslapd-security')
installutils.set_directive(self.filename, 'nsslapd-port',
port, quotes=False, separator=':')
installutils.set_directive(self.filename, 'nsslapd-security',
security, quotes=False, separator=':')
def __disable_listeners(self):
installutils.set_directive(self.filename, 'nsslapd-port',
0, quotes=False, separator=':')
installutils.set_directive(self.filename, 'nsslapd-security',
'off', quotes=False, separator=':')
installutils.set_directive(self.filename, 'nsslapd-ldapientrysearchbase',
None, quotes=False, separator=':')
def __upgrade(self):
try:
ld = ldapupdate.LDAPUpdate(dm_password='', ldapi=True, live_run=self.live_run, plugins=True)
if len(self.files) == 0:
self.files = ld.get_all_files(ldapupdate.UPDATES_DIR)
self.modified = ld.update(self.files)
except ldapupdate.BadSyntax, e:
root_logger.error('Bad syntax in upgrade %s' % str(e))
self.modified = False
self.badsyntax = True
except Exception, e:
# Bad things happened, return gracefully
self.modified = False
self.upgradefailed = True
root_logger.error('Upgrade failed with %s' % str(e))
root_logger.debug('%s', traceback.format_exc())
def main():
if os.getegid() != 0:
print "Must be root to set up server"
return 1
update = IPAUpgrade('EXAMPLE.COM')
update.create_instance()
return 0
try:
if __name__ == "__main__":
sys.exit(main())
except SystemExit, e:
sys.exit(e)
except KeyboardInterrupt, e:
sys.exit(1)