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freeipa/install/tools/ipa-csreplica-manage
Xiao-Long Chen 5e96fbc22a Use /usr/bin/python2 
Part of the effort to port FreeIPA to Arch Linux,
where Python 3 is the default.

FreeIPA hasn't been ported to Python 3, so the code must be modified to
run /usr/bin/python2

https://fedorahosted.org/freeipa/ticket/3438

Updated by pviktori@redhat.com
2014-01-03 09:46:05 +01:00

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#! /usr/bin/python2 -E
# Authors: Rob Crittenden <rcritten@redhat.com>
#
# Based on ipa-replica-manage by Karl MacMillan <kmacmillan@mentalrootkit.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 sys
import os
import krbV
from ipapython.ipa_log_manager import *
from ipaserver.install import replication, installutils, bindinstance
from ipalib import api, errors, util
from ipapython import ipautil, ipaldap, version, dogtag
from ipapython.dn import DN
CACERT = "/etc/ipa/ca.crt"
# dict of command name and tuples of min/max num of args needed
commands = {
"list":(0, 1, "[master fqdn]", ""),
"connect":(1, 2, "<master fqdn> [other master fqdn]",
"must provide the name of the servers to connect"),
"disconnect":(1, 2, "<master fqdn> [other master fqdn]",
"must provide the name of the server to disconnect"),
"del":(1, 1, "<master fqdn>",
"must provide hostname of master to delete"),
"re-initialize":(0, 0, "", ""),
"force-sync":(0, 0, "", "")
}
def parse_options():
from optparse import OptionParser
parser = OptionParser(version=version.VERSION)
parser.add_option("-H", "--host", dest="host", help="starting host")
parser.add_option("-p", "--password", dest="dirman_passwd", help="Directory Manager password")
parser.add_option("-v", "--verbose", dest="verbose", action="store_true", default=False,
help="provide additional information")
parser.add_option("-f", "--force", dest="force", action="store_true", default=False,
help="ignore some types of errors")
parser.add_option("--from", dest="fromhost", help="Host to get data from")
options, args = parser.parse_args()
valid_syntax = False
if len(args):
n = len(args) - 1
k = commands.keys()
for cmd in k:
if cmd == args[0]:
v = commands[cmd]
err = None
if n < v[0]:
err = v[3]
elif n > v[1]:
err = "too many arguments"
else:
valid_syntax = True
if err:
parser.error("Invalid syntax: %s\nUsage: %s [options] %s" % (err, cmd, v[2]))
if not valid_syntax:
cmdstr = " | ".join(commands.keys())
parser.error("must provide a command [%s]" % cmdstr)
return options, args
def list_replicas(realm, host, replica, dirman_passwd, verbose):
peers = {}
try:
# connect to main IPA LDAP server
conn = ipaldap.IPAdmin(host, 636, cacert=CACERT)
conn.do_simple_bind(bindpw=dirman_passwd)
dn = DN(('cn', 'masters'), ('cn', 'ipa'), ('cn', 'etc'), ipautil.realm_to_suffix(realm))
entries = conn.get_entries(dn, conn.SCOPE_ONELEVEL)
for ent in entries:
try:
cadn = DN(('cn', 'CA'), DN(ent.dn))
entry = conn.get_entry(cadn)
peers[ent.single_value['cn']] = ['master', '']
except errors.NotFound:
peers[ent.single_value['cn']] = ['CA not configured', '']
except Exception, e:
sys.exit(
"Failed to get data from '%s' while trying to list replicas: %s" %
(host, e))
finally:
conn.unbind()
if not replica:
for k, p in peers.iteritems():
print '%s: %s' % (k, p[0])
return
try:
repl = replication.get_cs_replication_manager(realm, replica, dirman_passwd)
except Exception, e:
sys.exit(str(e))
entries = repl.find_replication_agreements()
for entry in entries:
print '%s' % entry.single_value.get('nsds5replicahost')
if verbose:
print " last init status: %s" % entry.single_value.get(
'nsds5replicalastinitstatus')
print " last init ended: %s" % str(
ipautil.parse_generalized_time(
entry.single_value['nsds5replicalastinitend']))
print " last update status: %s" % entry.single_value.get(
'nsds5replicalastupdatestatus')
print " last update ended: %s" % str(
ipautil.parse_generalized_time(
entry.single_value['nsds5replicalastupdateend']))
def del_link(realm, replica1, replica2, dirman_passwd, force=False):
repl2 = None
try:
repl1 = replication.get_cs_replication_manager(realm, replica1, dirman_passwd)
repl1.hostnames = [replica1, replica2]
repl_list1 = repl1.find_replication_agreements()
# Find the DN of the replication agreement to remove
replica1_dn = None
for e in repl_list1:
if e.single_value.get('nsDS5ReplicaHost') == replica2:
replica1_dn = e.dn
break
if replica1_dn is None:
sys.exit("'%s' has no replication agreement for '%s'" % (replica1, replica2))
repl1.hostnames = [replica1, replica2]
except errors.NetworkError, e:
sys.exit("Unable to connect to %s: %s" % (replica1, e))
except Exception, e:
sys.exit("Failed to get data from '%s': %s" % (replica1, e))
try:
repl2 = replication.get_cs_replication_manager(realm, replica2, dirman_passwd)
repl2.hostnames = [replica1, replica2]
repl_list = repl2.find_replication_agreements()
# Now that we've confirmed that both hostnames are vaild, make sure
# that we aren't removing the last link from either side.
if not force and len(repl_list) <= 1:
print "Cannot remove the last replication link of '%s'" % replica2
print "Please use the 'del' command to remove it from the domain"
sys.exit(1)
if not force and len(repl_list1) <= 1:
print "Cannot remove the last replication link of '%s'" % replica1
print "Please use the 'del' command to remove it from the domain"
sys.exit(1)
# Find the DN of the replication agreement to remove
replica2_dn = None
for e in repl_list:
if e.single_value.get('nsDS5ReplicaHost') == replica1:
replica2_dn = e.dn
break
# This should never happen
if replica2_dn is None:
sys.exit("'%s' has no replication agreement for '%s'" % (replica1, replica2))
except errors.NotFound:
print "'%s' has no replication agreement for '%s'" % (replica2, replica1)
if not force:
return
except Exception, e:
print "Failed to get data from '%s': %s" % (replica2, e)
if not force:
sys.exit(1)
if repl2:
failed = False
try:
repl2.delete_agreement(replica1, replica2_dn)
repl2.delete_referral(replica1, repl1.port)
except Exception, e:
print "Unable to remove agreement on %s: %s" % (replica2, e)
failed = True
if failed:
if force:
print "Forcing removal on '%s'" % replica1
else:
sys.exit(1)
if not repl2 and force:
print "Forcing removal on '%s'" % replica1
repl1.delete_agreement(replica2, replica1_dn)
repl1.delete_referral(replica2, repl2.port)
print "Deleted replication agreement from '%s' to '%s'" % (replica1, replica2)
def del_master(realm, hostname, options):
force_del = False
delrepl = None
# 1. Connect to the local dogtag DS server
try:
thisrepl = replication.get_cs_replication_manager(realm, options.host,
options.dirman_passwd)
except Exception, e:
sys.exit("Failed to connect to server %s: %s" % (options.host, e))
# 2. Ensure we have an agreement with the master
if thisrepl.get_replication_agreement(hostname) is None:
sys.exit("'%s' has no replication agreement for '%s'" % (options.host, hostname))
# 3. Connect to the dogtag DS to be removed.
try:
delrepl = replication.get_cs_replication_manager(realm, hostname,
options.dirman_passwd)
except Exception, e:
if not options.force:
print "Unable to delete replica %s: %s" % (hostname, e)
sys.exit(1)
else:
print "Unable to connect to replica %s, forcing removal" % hostname
force_del = True
# 4. Get list of agreements.
if delrepl is None:
# server not up, just remove it from this server
replica_names = [options.host]
else:
replica_entries = delrepl.find_ipa_replication_agreements()
replica_names = [rep.single_value.get('nsds5replicahost')
for rep in replica_entries]
# 5. Remove each agreement
for r in replica_names:
try:
del_link(realm, r, hostname, options.dirman_passwd, force=True)
except Exception, e:
sys.exit("There were issues removing a connection: %s" % e)
# 6. And clean up the removed replica DNS entries if any.
try:
if bindinstance.dns_container_exists(options.host, api.env.basedn,
dm_password=options.dirman_passwd):
api.Backend.ldap2.connect(bind_dn=DN(('cn', 'Directory Manager')),
bind_pw=options.dirman_passwd)
bind = bindinstance.BindInstance()
bind.remove_ipa_ca_dns_records(hostname, realm.lower())
except Exception, e:
print "Failed to cleanup %s DNS entries: %s" % (hostname, e)
print "You may need to manually remove them from the tree"
def add_link(realm, replica1, replica2, dirman_passwd, options):
try:
repl2 = replication.get_cs_replication_manager(realm, replica2,
dirman_passwd)
except Exception, e:
sys.exit(str(e))
try:
conn = ipaldap.IPAdmin(replica2, 636, cacert=CACERT)
conn.do_simple_bind(bindpw=dirman_passwd)
dn = DN(('cn', 'CA'), ('cn', replica2), ('cn', 'masters'), ('cn', 'ipa'), ('cn', 'etc'),
ipautil.realm_to_suffix(realm))
conn.get_entries(dn, conn.SCOPE_ONELEVEL)
conn.unbind()
except errors.NotFound:
sys.exit('%s does not have a CA configured.' % replica2)
except errors.NetworkError, e:
sys.exit("Unable to connect to %s: %s" % (ipautil.format_netloc(replica2, 636), str(e)))
except Exception, e:
sys.exit("Failed to get data while trying to bind to '%s': %s" % (replica1, str(e)))
try:
repl1 = replication.get_cs_replication_manager(realm, replica1,
dirman_passwd)
entries = repl1.find_replication_agreements()
for e in entries:
if e.single_value.get('nsDS5ReplicaHost') == replica2:
sys.exit('This replication agreement already exists.')
repl1.hostnames = [replica1, replica2]
except errors.NotFound:
sys.exit("Cannot find replica '%s'" % replica1)
except errors.NetworkError, e:
sys.exit("Unable to connect to %s: %s" % (replica1, e))
except Exception, e:
sys.exit(
"Failed to get data from '%s' while trying to get current "
"agreements: %s" % (replica1, e))
repl1.setup_replication(
replica2, repl2.port, 0, DN(('cn', 'Directory Manager')),
dirman_passwd, is_cs_replica=True, local_port=repl1.port)
print "Connected '%s' to '%s'" % (replica1, replica2)
def re_initialize(realm, options):
if not options.fromhost:
sys.exit("re-initialize requires the option --from <host name>")
thishost = installutils.get_fqdn()
try:
repl = replication.get_cs_replication_manager(realm, options.fromhost,
options.dirman_passwd)
thisrepl = replication.get_cs_replication_manager(realm, thishost,
options.dirman_passwd)
except Exception, e:
sys.exit(str(e))
filter = repl.get_agreement_filter(host=thishost)
try:
entry = repl.conn.get_entries(
DN(('cn', 'config')), repl.conn.SCOPE_SUBTREE, filter)
except errors.NotFound:
root_logger.error("Unable to find %s -> %s replication agreement" % (options.fromhost, thishost))
sys.exit(1)
if len(entry) > 1:
root_logger.error("Found multiple agreements for %s. Only initializing the first one returned: %s" % (thishost, entry[0].dn))
repl.hostnames = thisrepl.hostnames = [thishost, options.fromhost]
thisrepl.enable_agreement(options.fromhost)
repl.enable_agreement(thishost)
repl.initialize_replication(entry[0].dn, repl.conn)
repl.wait_for_repl_init(repl.conn, entry[0].dn)
def force_sync(realm, thishost, fromhost, dirman_passwd):
try:
repl = replication.get_cs_replication_manager(realm, fromhost,
dirman_passwd)
repl.force_sync(repl.conn, thishost)
except Exception, e:
sys.exit(str(e))
def main():
options, args = parse_options()
# Just initialize the environment. This is so the installer can have
# access to the plugin environment
api_env = {'in_server' : True,
'verbose' : options.verbose,
}
if os.getegid() != 0:
api_env['log'] = None # turn off logging for non-root
api.bootstrap(**api_env)
api.finalize()
dirman_passwd = None
realm = krbV.default_context().default_realm
if options.host:
host = options.host
else:
host = installutils.get_fqdn()
options.host = host
if options.dirman_passwd:
dirman_passwd = options.dirman_passwd
else:
dirman_passwd = installutils.read_password("Directory Manager", confirm=False,
validate=False, retry=False)
if dirman_passwd is None:
sys.exit("Directory Manager password required")
options.dirman_passwd = dirman_passwd
if args[0] == "list":
replica = None
if len(args) == 2:
replica = args[1]
list_replicas(realm, host, replica, dirman_passwd, options.verbose)
elif args[0] == "del":
del_master(realm, args[1], options)
elif args[0] == "re-initialize":
re_initialize(realm, options)
elif args[0] == "force-sync":
if not options.fromhost:
sys.exit("force-sync requires the option --from <host name>")
force_sync(realm, host, options.fromhost, options.dirman_passwd)
elif args[0] == "connect":
if len(args) == 3:
replica1 = args[1]
replica2 = args[2]
elif len(args) == 2:
replica1 = host
replica2 = args[1]
add_link(realm, replica1, replica2, dirman_passwd, options)
elif args[0] == "disconnect":
if len(args) == 3:
replica1 = args[1]
replica2 = args[2]
elif len(args) == 2:
replica1 = host
replica2 = args[1]
del_link(realm, replica1, replica2, dirman_passwd, options.force)
try:
main()
except KeyboardInterrupt:
sys.exit(1)
except SystemExit, e:
sys.exit(e)
except Exception, e:
sys.exit("unexpected error: %s" % e)
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