MT#9285 [CARRIER] ngcp-sync-constants: add --force-grants option.

- removes node users before copying grants
- while at it, update password on already created user when copying grants

Change-Id: Ic15a7c27772a071d42e4e4d4bddd4204453b5be9

sbin/ngcp-sync-constants

@@ -70,6 +70,7 @@ Options:
     -init-passwords|-i  -- generate new passwords (constants.yml is updated)
     -slave|-s           -- sync repuser and replication on slave cluster instance
     -no-grant-nodes     -- skip copy grants for external nodes
+    -force-grants       -- force grants (remove and create user if exists)
     -test|-t            -- test mode (no updates)
     -verbose|-v         -- verbose mode
 USAGE
@@ -87,6 +88,7 @@ my $init_passwords  = 0;
 my $debug 			= 0;
 my $test_mode 		= 0;
 my $error           = 0;
+my $force_grants	= 0;
 
 GetOptions("h|?|help" 		  => \&Usage,
 		   "i|init-passwords"     => \$init_passwords,
@@ -94,6 +96,7 @@ GetOptions("h|?|help" 		  => \&Usage,
 		   "s|slave" => \$slave,
 		   "no-grant-nodes"   => \$skip_grant_nodes,
 		   "t|test" 		  => \$test_mode,
+		   "force-grants" => \$force_grants,
 		   "v|verbose" 		  => \$debug);
 #----------------------------------------------------------------------
 sub pwgen {
@@ -355,7 +358,8 @@ SQL
 			$sth_cr->execute($host, $user, $host_orig) unless $test_mode;
 		}
 		else {
-			print "--> user ${user} already created\n" if $debug;
+			print "--> user ${user} already created. Set password again\n" if $debug;
+			$dbh->do("SET PASSWORD FOR '${user}'\@'${host}' = PASSWORD('${pass}');") unless $test_mode;
 		}
 	}
 	$sth_sel->finish;
@@ -606,7 +610,7 @@ sub do_grant_nodes
 		grant_user(dbh => $dbh, user => $mysql_user, hosts => \@hosts, repuser => 0 );
 		sync_user( dbh => $dbh, user => $mysql_user, pass => $mysql_pass );
 		# all mysql users except repuser
-		copy_grants(dbh => $dbh, hosts => \@hosts);
+		copy_grants(dbh => $dbh, hosts => \@hosts, force => $force_grants);
 	};
 	if ($@) {
 		$dbh->rollback;
@@ -724,6 +728,9 @@ Sync repuser and check replication of the read-only dbcluster instance (mysqld2)
 =item B<--no-grant-nodes>
 Skip creation of grants for external nodes. This is useful on installation phase at sp2
 
+=item B<--force-grants>
+Remove and recreate users for slave hosts
+
 =item B<--test>
 No real updates, only for checks