Configure the ipa_pwd_extop plugin on replicas.

If plugin isn't configured then the kerberos attributes don't get populated.
User's will get Preauthentication errors from the kerberos libraries
because there is no krbPrincipalKey to match against.

442134

ipa-server/ipaserver/krbinstance.py

@@ -139,7 +139,8 @@ class KrbInstance(service.Service):
         self.step("creating a keytab for the directory", self.__create_ds_keytab)
         self.step("creating a keytab for the machine", self.__create_host_keytab)
         self.step("exporting the kadmin keytab", self.__export_kadmin_changepw_keytab)
-        self.step("adding the password extenstion to the directory", self.__add_pwd_extop_module)
+        self.step("adding the password extension to the directory", self.__add_pwd_extop_module)
+        self.step("adding the kerberos master key to the directory", self.__add_master_key)
 
         self.__common_post_setup()
 
@@ -158,6 +159,7 @@ class KrbInstance(service.Service):
         self.step("configuring KDC", self.__create_replica_instance)
         self.step("creating a keytab for the directory", self.__create_ds_keytab)
         self.step("creating a keytab for the machine", self.__create_host_keytab)
+        self.step("adding the password extension to the directory", self.__add_pwd_extop_module)
 
         self.__common_post_setup()
 
@@ -327,6 +329,7 @@ class KrbInstance(service.Service):
     def __add_pwd_extop_module(self):
         self.__ldap_mod("pwd-extop-conf.ldif")
 
+    def __add_master_key(self):
         #get the Master Key from the stash file
         try:
             stash = open("/var/kerberos/krb5kdc/.k5."+self.realm, "r")