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Thingy for updating powerdns backend when stuff changes
#!/usr/bin/env python
import MySQLdb
import os, sys
import pprint
pp = pprint.PrettyPrinter()
mysql_host = "localhost"
mysql_user = "dbusername"
mysql_pass = "dbpassword"
mysql_db = "powerdns"
#ClientIP, ClientMac, host-decl-name
if (len(sys.argv) > 1):
command = sys.argv[1]
clientIP = sys.argv[2]
clientMac = sys.argv[3]
hostname = sys.argv[4]
if command == "commit":
f = open("/tmp/leases",'a')
s = "Leased: %s to %s\n" % (clientIP, hostname)
f.write(s)
f.flush()
f.close()
db = MySQLdb.connect(host=mysql_host, user=mysql_user, passwd=mysql_pass, db=mysql_db)
cursor = db.cursor()
cursor.execute("INSERT INTO records (domain_id,name,type,content,ttl,prio,change_date) VALUES (%s,%s,%s,%s,%s,%s,UNIX_TIMESTAMP(NOW()))", [1,hostname,"A",clientIP,3600,0])
# pp.pprint(cursor.__dict__)
cursor.close()
db.commit()
db.close()
elif command == "release":
f = open("/tmp/leases",'a')
s = "Released: %s from %s\n" % (clientIP, hostname)
f.write(s)
f.flush()
f.close()
db = MySQLdb.connect(host=mysql_host, user=mysql_user, passwd=mysql_pass, db=mysql_db)
cursor = db.cursor()
cursor.execute("DELETE FROM records WHERE content = %s AND name = %s",[clientIP,hostname])
#pp.pprint(cursor.__dict__)
db.commit()
db.close()
elif command == "expiry":
f = open("/tmp/leases",'a')
s = "Expired: %s from %s\n" % (clientIP, hostname)
f.write(s)
f.flush()
f.close()
db = MySQLdb.connect(host=mysql_host, user=mysql_user, passwd=mysql_pass, db=mysql_db)
cursor = db.cursor()
cursor.execute("DELETE FROM records WHERE content = %s AND name = %s",[clientIP,hostname])
#pp.pprint(cursor.__dict__)
db.commit()
db.close()
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