def __is_cluster_already_exist(self, list_nodes):
for node in list_nodes.itervalues():
gluster = Gluster(node['ip'])
peer_status = gluster.get_peer_manager().status()
if peer_status["peers"] > 0:
return True
return False
def __is_already_on_glusterfs(self):
gluster = Gluster()
peer_manager = gluster.get_peer_manager()
peer_status = peer_manager.status()
if peer_status["peers"] == 0:
return False
else:
return True
def __is_already_on_glusterfs(self):
gluster = Gluster()
peer_manager = gluster.get_peer_manager()
peer_status = peer_manager.status()
if peer_status["peers"] == 0:
return False
else:
return True
def __is_cluster_already_exist(self, list_nodes):
for node in list_nodes.itervalues():
gluster = Gluster(node['ip'])
peer_status = gluster.get_peer_manager().status()
if peer_status["peers"] > 0:
return True
return False
def __create_cluster(self, list_nodes, numbers_nodes):
gluster = Gluster()
peer_manager = gluster.get_peer_manager()
for node in list_nodes.itervalues():
peer_manager.probe(node['ip'])
print(node['name'] + " ( " + node['ip'] + " ) " + " added on cluster")
# I wait all node join the glusterfs before continue
while(self.__get_numbers_peer() != numbers_nodes):
time.sleep(1)
def __create_cluster(self, list_nodes, numbers_nodes):
gluster = Gluster()
peer_manager = gluster.get_peer_manager()
for node in list_nodes.itervalues():
peer_manager.probe(node['ip'])
print(node['name'] + " ( " + node['ip'] + " ) " +
" added on cluster")
# I wait all node join the glusterfs before continue
while (self.__get_numbers_peer() != numbers_nodes):
time.sleep(1)
def __wait_all_glusterfs_start(self, list_nodes):
loop = True
while loop:
time.sleep(1)
try:
for node in list_nodes.itervalues():
gluster = Gluster(node['ip'])
peer_status = gluster.get_peer_manager().status()
loop = False
except Exception,e:
loop = True
def __wait_all_glusterfs_start(self, list_nodes):
loop = True
while loop:
time.sleep(1)
try:
for node in list_nodes.itervalues():
gluster = Gluster(node['ip'])
peer_status = gluster.get_peer_manager().status()
loop = False
except Exception, e:
loop = True
def __wait_all_glusterfs_start(self, list_nodes):
loop = True
while loop:
time.sleep(1)
try:
print(str(list_nodes))
for node in list_nodes.itervalues():
gluster = Gluster(node['ip'])
print("peer status()")
peer_status = gluster.get_peer_manager().status()
loop = False
except Exception, e:
print(traceback.format_exc())
print(e.message)
loop = True
def __wait_all_glusterfs_start(self, list_nodes):
loop = True
while loop:
time.sleep(1)
try:
print(str(list_nodes))
for node in list_nodes.itervalues():
gluster = Gluster(node['ip'])
print("peer status()")
peer_status = gluster.get_peer_manager().status()
loop = False
except Exception,e:
print(traceback.format_exc())
print(e.message)
loop = True
def __create_all_volumes(self, list_volumes, transport, stripe, replica, quota, directory, list_nodes):
gluster = Gluster()
volume_manager = gluster.get_volume_manager()
for volume in list_volumes:
try:
volume_manager.info(volume)
except Exception,e:
if e.message.find("Volume " + volume +" does not exist") >= 0:
list_bricks = []
for node in list_nodes.itervalues():
list_bricks.append(node['ip'] + ':' + directory + '/' + volume)
volume_manager.create(volume, list_bricks, transport, stripe, replica, quota)
print("Volume '" + volume + "' has been created")
else:
raise e
def manage_cluster(self):
gluster = Gluster()
peer_manager = gluster.get_peer_manager()
volume_manager = gluster.get_volume_manager()
metadata_manager = MetadataAPI()
# I check there are more than 1 container
number_node = self.__get_numbers_of_node_in_service()
# I get my container info
current_container = self.__get_my_container_info()
# I get all other containers
list_containers = self.__get_other_container_in_service(
current_container)
# If I am not on cluster and there are no cluster and I am the master, so I create the gluster
if (self.__is_already_on_glusterfs() is False) and (self._is_master(
current_container, list_containers) is True) and (
self.__is_cluster_already_exist(list_containers) is False):
self.__create_cluster(list_containers, number_node)
# If I am already on cluster and there are new peer, I guest them.
if (self.__is_already_on_glusterfs() is
True) and (number_node > self.__get_numbers_peer()):
list_nodes = {}
peer_status = self.__get_peers()
for container in list_containers.itervalues():
if container['ip'] not in peer_status["host"]:
list_nodes[container["name"]] = container
print("New host : " + container["name"])
self.__create_cluster(list_nodes, number_node)
list_containers = list_nodes
# I create all volumes
if self.__is_already_on_glusterfs() is True:
list_nodes = list_containers.copy()
list_nodes[current_container["name"]] = current_container
self.__create_all_volumes(self.__list_volumes, self.__transport,
self.__stripe, self.__replica,
self.__quota, self.__gluster_directory,
list_nodes)
def __create_all_volumes(self, list_volumes, transport, stripe, replica,
quota, directory, list_nodes):
gluster = Gluster()
volume_manager = gluster.get_volume_manager()
for volume in list_volumes:
try:
volume_manager.info(volume)
except Exception, e:
if e.message.find("Volume " + volume + " does not exist") >= 0:
list_bricks = []
for node in list_nodes.itervalues():
list_bricks.append(node['ip'] + ':' + directory + '/' +
volume)
volume_manager.create(volume, list_bricks, transport,
stripe, replica, quota)
print("Volume '" + volume + "' has been created")
else:
raise e
def manage_cluster(self):
gluster = Gluster()
peer_manager = gluster.get_peer_manager()
volume_manager = gluster.get_volume_manager()
metadata_manager = MetadataAPI()
# I check there are more than 1 container
number_node = self.__get_numbers_of_node_in_service()
# I get my container info
current_container = self.__get_my_container_info()
# I get all other containers
list_containers = self.__get_other_container_in_service(current_container["name"])
# If I am not on cluster and there are no cluster and I am the master, so I create the gluster
if (self.__is_already_on_glusterfs() is False) and (self._is_master(current_container, list_containers) is True) and (self.__is_cluster_already_exist(list_containers) is False):
self.__create_cluster(list_containers, number_node)
# If I am already on cluster and there are new peer, I guest them.
if (self.__is_already_on_glusterfs() is True) and (number_node > self.__get_numbers_peer()):
list_nodes = {}
peer_status = self.__get_peers()
for container in list_containers.itervalues():
if container['ip'] not in peer_status["host"]:
list_nodes[container["name"]] = container
print("New host : " + container["name"])
self.__create_cluster(list_nodes, number_node)
list_containers = list_nodes
# I create all volumes
if self.__is_already_on_glusterfs() is True:
list_nodes = list_containers.copy()
list_nodes[current_container["name"]] = current_container
self.__create_all_volumes(self.__list_volumes, self.__transport, self.__stripe, self.__replica, self.__quota,self.__gluster_directory,list_nodes)
def __get_numbers_peer(self):
gluster = Gluster()
peer_manager = gluster.get_peer_manager()
peer_status = peer_manager.status()
return peer_status["peers"]
def __get_peers(self): gluster = Gluster() peer_manager = gluster.get_peer_manager() return peer_manager.status()
def __get_peers(self):
gluster = Gluster()
peer_manager = gluster.get_peer_manager()
return peer_manager.status()
def __get_numbers_peer(self):
gluster = Gluster()
peer_manager = gluster.get_peer_manager()
peer_status = peer_manager.status()
return peer_status["peers"]
