Initial support for confiuguring a DNS Server during installation.

It's not perfect yet but good enough to include it.

1 files changed, 113 insertions, 0 deletions

diff --git a/ipa-server/ipaserver/bindinstance.py b/ipa-server/ipaserver/bindinstance.py
new file mode 100644
index 00000000..708cc933
--- /dev/null
+++ b/ipa-server/ipaserver/bindinstance.py
@@ -0,0 +1,113 @@
+#! /usr/bin/python -E
+# Authors: Simo Sorce <ssorce@redhat.com>
+#
+# Copyright (C) 2007  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; version 2 or later
+#
+# 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+
+import string
+import tempfile
+import shutil
+import os
+import socket
+from ipa.ipautil import *
+
+class BindInstance:
+    def __init__(self):
+        self.fqdn = None
+	self.domain = None
+        self.host = None
+        self.ip_address = None
+        self.realm = None
+        self.sub_dict = None
+
+    def setup(self, fqdn, ip_address, realm_name):
+        self.fqdn = fqdn
+        self.ip_address = ip_address
+        self.realm = realm_name
+        self.domain = fqdn[fqdn.find(".")+1:]
+        self.host = fqdn[:fqdn.find(".")]
+
+        self.__setup_sub_dict()
+
+    def check_inst(self):
+        # So far this file is always present in both RHEL5 and Fedora if all the necessary
+        # bind packages are installed (RHEL5 requires also the pkg: caching-nameserver)
+        if not os.path.exists('/etc/named.rfc1912.zones'):
+             return False
+
+        return True
+
+    def create_sample_bind_zone(self):
+        bind_txt = template_file(SHARE_DIR + "bind.zone.db.template", self.sub_dict)
+        [bind_fd, bind_name] = tempfile.mkstemp(".db","sample.zone.")
+        os.write(bind_fd, bind_txt)
+        os.close(bind_fd)
+        print "Sample zone file for bind has been created in "+bind_name
+
+    def create_instance(self):
+
+        try:
+            self.stop()
+        except:
+            pass
+
+        self.__setup_zone()
+        self.__setup_named_conf()
+
+        self.start()
+
+    def stop(self):
+        run(["/sbin/service", "named", "stop"])
+
+    def start(self):
+        run(["/sbin/service", "named", "start"])
+
+    def restart(self):
+        run(["/sbin/service", "named", "restart"])
+
+    def __setup_sub_dict(self):
+        self.sub_dict = dict(FQDN=self.fqdn,
+                             IP=self.ip_address,
+                             DOMAIN=self.domain,
+                             HOST=self.host,
+                             REALM=self.realm)
+
+    def __setup_zone(self):
+        zone_txt = template_file(SHARE_DIR + "bind.zone.db.template", self.sub_dict)
+        zone_fd = open('/var/named/'+self.domain+'.zone.db', 'w')
+        zone_fd.write(zone_txt)
+        zone_fd.close()
+
+    def __setup_named_conf(self):
+        if os.path.exists('/etc/named.conf'):
+            shutil.copy2('/etc/named.conf', '/etc/named.conf.ipabkp')
+        named_txt = template_file(SHARE_DIR + "bind.named.conf.template", self.sub_dict)
+        named_fd = open('/etc/named.conf', 'w')
+        named_fd.seek(0)
+        named_fd.truncate(0)
+        named_fd.write(named_txt)
+        named_fd.close()
+
+        if os.path.exists('/etc/resolve.conf'):
+            shutil.copy2('/etc/resolve.conf', '/etc/resolv.conf.ipabkp')
+        resolve_txt = "search "+self.domain+"\nnameserver "+self.ip_address+"\n"
+        resolve_fd = open('/etc/resolve.conf', 'w')
+        resolve_fd.seek(0)
+        resolve_fd.truncate(0)
+        resolve_fd.write(resolve_txt)
+        resolve_fd.close()
+