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authorShwetha Panduranga <spandura@redhat.com>2016-10-03 14:59:03 +0530
committerJonathan Holloway <jholloway@redhat.com>2016-10-17 10:00:07 -0700
commitb8e32480bd75fc6dfc2cd1eb7eaac67e13f420ee (patch)
treedca7d188dbe69bf897a35b616ef69ae32950bdcd /glustolibs-gluster/glustolibs/gluster/gluster_init.py
parentaa56eab484f11801c12a31f03c3b17b1f093641c (diff)
Adding libs for brick ops, volume helpers, mount helpers, gluster base
class, heal related helpers, samba helpers, and windows ops helpers Change-Id: I0ad8fc7548c88e89d2ba6441166b9a38af76cea0 Signed-off-by: Shwetha Panduranga <spandura@redhat.com>
Diffstat (limited to 'glustolibs-gluster/glustolibs/gluster/gluster_init.py')
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diff --git a/glustolibs-gluster/glustolibs/gluster/gluster_init.py b/glustolibs-gluster/glustolibs/gluster/gluster_init.py
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+#!/usr/bin/env python
+# Copyright (C) 2015-2016 Red Hat, Inc. <http://www.redhat.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+"""
+ Description: This file contains the methods for starting/stopping glusterd
+ and other initial gluster environment setup helpers.
+"""
+from glusto.core import Glusto as g
+
+def start_glusterd(servers):
+ """Starts glusterd on specified servers if they are not running.
+
+ Args:
+ servers (list): List of server hosts on which glusterd has to be
+ started.
+
+ Returns:
+ bool : True if starting glusterd is successful on all servers.
+ False otherwise.
+ """
+ cmd = "pgrep glusterd || service glusterd start"
+ results = g.run_parallel(servers, cmd)
+
+ rc = True
+ for server, ret_values in results.iteritems():
+ retcode, out, err = ret_values
+ if retcode != 0:
+ g.log.error("Unable to start glusterd on server %s", server)
+ rc = False
+ if not rc:
+ return False
+
+ return True
+
+def stop_glusterd(servers):
+ """Stops the glusterd on specified servers.
+
+ Args:
+ servers (list): List of server hosts on which glusterd has to be
+ stopped.
+
+ Returns:
+ bool : True if stopping glusterd is successful on all servers.
+ False otherwise.
+ """
+ cmd = "service glusterd stop"
+ results = g.run_parallel(servers, cmd)
+
+ rc = True
+ for server, ret_values in results.iteritems():
+ retcode, out, err = ret_values
+ if retcode != 0:
+ g.log.error("Unable to start glusterd on server %s", server)
+ rc = False
+ if not rc:
+ return False
+
+ return True
+
+
+def restart_glusterd(servers):
+ """Restart the glusterd on specified servers.
+
+ Args:
+ servers (list): List of server hosts on which glusterd has to be
+ restarted.
+
+ Returns:
+ bool : True if restarting glusterd is successful on all servers.
+ False otherwise.
+ """
+ cmd = "service glusterd restart"
+ results = g.run_parallel(servers, cmd)
+
+ rc = True
+ for server, ret_values in results.iteritems():
+ retcode, out, err = ret_values
+ if retcode != 0:
+ g.log.error("Unable to restart glusterd on server %s", server)
+ rc = False
+ if not rc:
+ return False
+
+ return True
+
+def is_glusterd_running(servers):
+ """Checks the glusterd status on specified servers.
+
+ Args:
+ servers (list): List of server hosts on which glusterd status has to
+ be checked.
+
+ Returns:
+ 0 : if glusterd running
+ 1 : if glusterd not running
+ -1 : if glusterd not running and PID is alive
+
+ """
+ cmd1 = "service glusterd status"
+ cmd2 = "pidof glusterd"
+ cmd1_results = g.run_parallel(servers, cmd1)
+ cmd2_results = g.run_parallel(servers, cmd2)
+
+ rc = 0
+ for server, ret_values in cmd1_results.iteritems():
+ retcode, out, err = ret_values
+ if retcode != 0:
+ g.log.error("glusterd is not running on the server %s", server)
+ rc = 1
+ if cmd2_results[server][0] == 0:
+ g.log.error("PID of glusterd is alive and status is not running")
+ rc = -1
+ return rc
+
+#TODO: THIS IS NOT IMPLEMENTED YET. PLEASE DO THIS MANUALLY
+# TILL WE IMPLEMENT THIS PART
+
+def env_setup_servers(servers):
+ """Set up environment on all the specified servers.
+
+ Args:
+ servers (list): List of server hosts on which environment has to be
+ setup.
+
+ Returns:
+ bool : True if setting up environment is successful on all servers.
+ False otherwise.
+
+ """
+ g.log.info("The function isn't implemented fully")
+ g.log.info("Please setup the bricks manually.")
+
+ if not start_glusterd(servers):
+ return False
+
+ return True