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121 lines
4.9 KiB
Python
121 lines
4.9 KiB
Python
# Authors:
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# Martin Kosek <mkosek@redhat.com>
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#
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# Copyright (C) 2012 Red Hat
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# see file 'COPYING' for use and warranty information
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from ipaserver.install.plugins import MIDDLE
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from ipaserver.install.plugins.baseupdate import PostUpdate
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from ipalib import api, errors
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from ipapython.dn import DN
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from ipapython.ipa_log_manager import *
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DEFAULT_ID_RANGE_SIZE = 200000
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class update_default_range(PostUpdate):
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"""
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Create default ID range for upgraded servers.
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"""
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order=MIDDLE
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def execute(self, **options):
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ldap = self.obj.backend
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dn = DN(api.env.container_ranges, api.env.basedn)
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search_filter = "objectclass=ipaDomainIDRange"
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try:
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(entries, truncated) = ldap.find_entries(search_filter, [], dn)
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except errors.NotFound:
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pass
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else:
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root_logger.debug("default_range: ipaDomainIDRange entry found, skip plugin")
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return (False, False, [])
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dn = DN(('cn', 'admins'), api.env.container_group, api.env.basedn)
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try:
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admins_entry = ldap.get_entry(dn, ['gidnumber'])
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except errors.NotFound:
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root_logger.error("default_range: No local ID range and no admins "
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"group found. Cannot create default ID range")
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return (False, False, [])
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id_range_base_id = admins_entry['gidnumber'][0]
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id_range_name = '%s_id_range' % api.env.realm
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id_range_size = DEFAULT_ID_RANGE_SIZE
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range_entry = ['objectclass:top',
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'objectclass:ipaIDrange',
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'objectclass:ipaDomainIDRange',
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'cn:%s' % id_range_name,
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'ipabaseid:%s' % id_range_base_id,
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'ipaidrangesize:%s' % id_range_size,
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'iparangetype:ipa-local',
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]
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updates = {}
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dn = DN(('cn', '%s_id_range' % api.env.realm),
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api.env.container_ranges, api.env.basedn)
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updates[dn] = {'dn': dn, 'default': range_entry}
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# Default range entry has a hard-coded range size to 200000 which is
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# a default range size in ipa-server-install. This could cause issues
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# if user did not use a default range, but rather defined an own,
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# bigger range (option --idmax).
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# We should make our best to check if this is the case and provide
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# user with an information how to fix it.
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dn = DN(api.env.container_dna_posix_ids, api.env.basedn)
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search_filter = "objectclass=dnaSharedConfig"
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attrs = ['dnaHostname', 'dnaRemainingValues']
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try:
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(entries, truncated) = ldap.find_entries(search_filter, attrs, dn)
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except errors.NotFound:
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root_logger.warning("default_range: no dnaSharedConfig object found. "
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"Cannot check default range size.")
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else:
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masters = set()
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remaining_values_sum = 0
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for entry in entries:
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hostname = entry.get('dnahostname', [None])[0]
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if hostname is None or hostname in masters:
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continue
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remaining_values = entry.get('dnaremainingvalues', [''])[0]
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try:
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remaining_values = int(remaining_values)
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except ValueError:
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root_logger.warning("default_range: could not parse "
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"remaining values from '%s'", remaining_values)
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continue
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else:
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remaining_values_sum += remaining_values
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masters.add(hostname)
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if remaining_values_sum > DEFAULT_ID_RANGE_SIZE:
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msg = ['could not verify default ID range size',
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'Please use the following command to set correct ID range size',
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' $ ipa range-mod %s --range-size=RANGE_SIZE' % id_range_name,
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'RANGE_SIZE may be computed from --idstart and --idmax options '
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'used during IPA server installation:',
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' RANGE_SIZE = (--idmax) - (--idstart) + 1'
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]
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root_logger.error("default_range: %s", "\n".join(msg))
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return (False, True, [updates])
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api.register(update_default_range)
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