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# Copyright (C) 2017-2018 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: Library for gluster geo-replication operations
"""
from glusto.core import Glusto as g
def create_shared_storage(mnode):
"""Create shared volume which is necessary for the setup of
a geo-rep session
Args:
mnode(str): Node on which command is to be executed
Returns:
tuple: Tuple containing three elements (ret, out, err).
The first element 'ret' is of type 'int' and is the return value
of command execution.
The second element 'out' is of type 'str' and is the stdout value
of the command execution.
The third element 'err' is of type 'str' and is the stderr value
of the command execution.
"""
cmd = "gluster volume set all cluster.enable-shared-storage enable"
return g.run(mnode, cmd)
def georep_createpem(mnode):
""" Creates a common pem pub file on all the nodes in the master and
is used to implement the passwordless SSH connection
Args:
mnode (str): Node on which cmd is to be executed
Returns:
tuple: Tuple containing three elements (ret, out, err).
The first element 'ret' is of type 'int' and is the return value
of command execution.
The second element 'out' is of type 'str' and is the stdout value
of the command execution.
The third element 'err' is of type 'str' and is the stderr value
of the command execution.
"""
cmd = "gluster system:: execute gsec_create"
return g.run(mnode, cmd)
def georep_create(mnode, mastervol, slaveip, slavevol, user=None, force=False):
"""Pushes the keys to all the slave nodes and creates a geo-rep session
Args:
mnode (str) : Node on which cmd is to be executed
mastervol (str) : The name of the mastervol
slaveip (str): SlaveIP
slavevol (str) The name of the slave volume
kwargs:
force (bool): If this option is set to True, then create geo-rep
session will be executed with the force option.
If it is set to False, then the geo-rep session is created
without the force option
user (str): If not set, the default is a root-user
If specified, non-root user participates in the geo-rep
session
Returns:
tuple: Tuple containing three elements (ret, out, err).
The first element 'ret' is of type 'int' and is the return value
of command execution.
The second element 'out' is of type 'str' and is the stdout value
of the command execution.
The third element 'err' is of type 'str' and is the stderr value
of the command execution.
"""
if user:
if force:
cmd = "gluster volume geo-replication %s %s@%s::%s create push-pem \
force" % (mastervol, user, slaveip, slavevol)
else:
cmd = "gluster volume geo-replication %s %s@%s::%s create \
push-pem" % (mastervol, user, slaveip, slavevol)
else:
if force:
cmd = "gluster volume geo-replication %s %s::%s create push-pem \
force" % (mastervol, slaveip, slavevol)
else:
cmd = "gluster volume geo-replication %s %s::%s create \
push-pem" % (mastervol, slaveip, slavevol)
return g.run(mnode, cmd)
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