Configure automount using autofs or sssd.

This script edits nsswitch.conf to use either ldap (autofs) or
sss (sssd) to find automount maps.

NFSv4 services are started so Kerberos encryption and/or integrity can
be used on the maps.

https://fedorahosted.org/freeipa/ticket/1233
https://fedorahosted.org/freeipa/ticket/2193

ipapython/platform/base.py

@@ -23,7 +23,9 @@ from ipalib.plugable import MagicDict
 # through knownservices.<name> and take care of remapping internally, if needed
 wellknownservices = ['certmonger', 'dirsrv', 'httpd', 'ipa', 'krb5kdc',
                      'messagebus', 'nslcd', 'nscd', 'ntpd', 'portmap',
-                     'rpcbind', 'kadmin', 'sshd']
+                     'rpcbind', 'kadmin', 'sshd', 'autofs', 'rpcgssd',
+                     'rpcidmapd']
+
 
 class AuthConfig(object):
     """

ipapython/platform/fedora16.py

@@ -43,6 +43,9 @@ __all__ = ['authconfig', 'service', 'knownservices', 'backup_and_replace_hostnam
 # mapping will be kept in this dictionary
 system_units = dict(map(lambda x: (x, "%s.service" % (x)), base.wellknownservices))
 
+system_units['rpcgssd'] = 'nfs-secure.service'
+system_units['rpcidmapd'] = 'nfs-idmap.service'
+
 # Rewrite dirsrv and pki-cad services as they support instances via separate
 # service generator. To make this working, one needs to have both foo@.servic
 # and foo.target -- the latter is used when request should be coming for