generate bind configs from LDAP

dns/files/dnsdump.py

@@ -0,0 +1,95 @@
+#!/usr/bin/env python
+
+import re
+import sys
+import time
+import os
+import glob
+import difflib
+from subprocess import Popen, PIPE
+
+# Example templates:
+#
+# --(A#(&(objectClass=ipHost)(cn=ap*.panoulu.local)(!(cn=*.*.panoulu.local)))--
+# --(PTR#(&(objectClass=ipHost)(cn=ap*.panoulu.local)(ipHostNumber=10.40.*.*)(!(cn=*.*.panoulu.local)))--
+# --(serial)--
+
+def main():
+    if len(sys.argv) != 4:
+        print >>sys.stderr, 'Usage: %s --test/--notest <template_dir> <target_dir>' % sys.argv[0]
+        sys.exit(1)
+
+        
+    for template in glob.glob( os.path.join(sys.argv[2], '*.in')):
+        infile  = open(template, 'r')
+        input = infile.readlines()
+        input_string = ""
+        output = ""
+        for line in input:
+            input_string += line
+            m = re.match('([ \t]*)--(.+)--[ \t]*$', line)
+            if m is not None:
+                indent = m.group(1)
+                if (m.group(2) == "(serial)"):
+                    serial = time.localtime(time.time())                    
+                    output += '\t\t\t%s\t; serial\n' % (time.strftime("%Y%m%d%H"))
+                else:
+                    for entry in ldapsearch(m.group(2)):
+                        output += '%s%s\n' % (indent, entry)
+            else:
+                output += line
+        if sys.argv[1] == "--test":
+            o = open(os.path.join(sys.argv[3], os.path.basename(template[:-3])), 'r')
+            str = ""
+            for line in o.readlines():
+                str += line
+            o.close()
+            for a, b in zip(str.splitlines(), output.splitlines()):
+                if a != b:
+                    if not "serial" in a:
+                        print a,b
+                        sys.exit(1)
+        else:
+            outfile = open(os.path.join(sys.argv[3], os.path.basename(template[:-3])), 'w')
+            outfile.write(output)
+            outfile.close()
+        infile.close()
+
+
+def ldapsearch(f):
+    filter_list = f.split("#")
+    type = filter_list[0][1:]
+    filter = filter_list[1]
+    p = Popen(['ldapsearch', '-x', '-z', '0', '-LLL', filter, 'cn', 'macAddress', 'ipHostNumber'],
+               bufsize=1024, stdout=PIPE, close_fds=True)
+    ret = []
+    cur = {}
+    for l in p.stdout.readlines():
+        l = l.strip()
+        if l == '':
+            try:
+                if (type == "A"):
+                    ret.append('%s.\tA\t%s' % (
+                        cur["cn"],  cur["ipHostNumber"]))
+                elif type == "PTR":
+                    ip_list = cur["ipHostNumber"].split(".")
+                    ret.append('%s.%s.%s.%s.in-addr.arpa.\tPTR\t%s.' % (
+                        ip_list[-1], ip_list[-2], ip_list[-3], ip_list[-4],  cur["cn"]))
+                else:
+                    raise "missing record type"
+            except KeyError:
+                print >>sys.stderr, "skipping: %s" % repr(cur)
+            cur = {}
+            continue
+        l = l.split()
+        if l[0] in ('cn:', 'macAddress:', 'ipHostNumber:'):
+                cur[l[0][0:-1]] = l[1]
+    return ret
+
+
+if __name__ == '__main__':
+    try:
+        main()
+    except KeyboardInterrupt:
+        sys.exit()
+

dns/manifests/init.pp

@@ -173,6 +173,45 @@ class dns::server {
     }
 }
 
+# Generate named config from LDAP
+#
+# Usage:
+#
+# Put templates you want to generate to master.in directory.
+# See dnsdump.py for example template tags.
+
+class dns::server::ldap inherits dns::server {
+
+    include ldap::client::python
+
+    file { "/usr/local/sbin/dnsdump.py":
+        ensure  => present,
+        source  => "puppet:///modules/dns/dnsdump.py",
+        mode    => 0755,
+        owner   => root,
+        group   => $operatingsystem ? {
+            OpenBSD => wheel,
+            default => root,
+        },
+    }
+
+    file { "/var/named/master.in":
+        ensure  => directory,
+        source  => "puppet:///files/dns/master.in",
+        recurse => true,
+        mode    => 0755,
+        owner   => root,
+        purge   => true,
+    }
+
+    exec { "generate-dns-conf":
+        path      => "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin",
+        command   => "dnsdump.py --notest /var/named/master.in /var/named/master",
+        require   => File["/usr/local/sbin/dnsdump.py"],
+        unless    => "dnsdump.py --test /var/named/master.in /var/named/master",
+        notify    => Service["named"]
+    }
+}
 
 # Configure DNS zone.
 #