def snap_restore(volname, snapname, server=''):
"""
stops the volume restore the snapshot and starts the volume
Returns True upon success, False on in any step
"""
if server == '':
server = tc.nodes[0]
ret = stop_volume(volname, server)
if not ret:
return False
ret = tc.run(server, "gluster snapshot restore %s" % snapname)
if ret[0] != 0:
tc.logger.error("snapshot restore failed")
return False
ret = start_volume(volname, server)
if not ret:
return False
return True
def snap_restore(volname, snapname, server=''):
"""
stops the volume restore the snapshot and starts the volume
Returns True upon success, False on in any step
"""
if server == '':
server = tc.nodes[0]
ret = stop_volume(volname, server)
if not ret:
return False
ret = tc.run(server, "gluster snapshot restore %s" % snapname)
if ret[0] != 0:
tc.logger.error("snapshot restore failed")
return False
ret = start_volume(volname, server)
if not ret:
return False
return True
def snap_restore_complete(volname, snapname, mnode=None):
"""stops the volume restore the snapshot and starts the volume
Example:
snap_restore_complete(testvol, testsnap)
Args:
volname (str): volume name
snapname (str): snapshot name
Kwargs:
mnode (str): Node on which cmd has to be executed.
If None, defaults to nodes[0].
Returns:
bool: True on success, False on failure
"""
if mnode is None:
mnode = tc.servers[0]
# Stopping volume before snap restore
ret = stop_volume(volname, mnode)
if not ret:
tc.logger.error(
"Failed to stop volume %s before restoring snapshot " "%s in node %s" % (volname, snapname, mnode)
)
return False
ret, _, _ = snap_restore(snapname, mnode=mnode)
if ret != 0:
tc.logger.error("snapshot restore cli execution failed")
return False
# Starting volume after snap restore
ret = start_volume(volname, mnode)
if not ret:
tc.logger.error(
"Failed to start volume %s after restoring snapshot " "%s in node %s" % (volname, snapname, mnode)
)
return False
return True
def snap_restore_complete(volname, snapname, mnode=None):
"""stops the volume restore the snapshot and starts the volume
Example:
snap_restore_complete(testvol, testsnap)
Args:
volname (str): volume name
snapname (str): snapshot name
Kwargs:
mnode (str): Node on which cmd has to be executed.
If None, defaults to nodes[0].
Returns:
bool: True on success, False on failure
"""
if mnode is None:
mnode = tc.servers[0]
# Stopping volume before snap restore
ret = stop_volume(volname, mnode)
if not ret:
tc.logger.error("Failed to stop volume %s before restoring snapshot "
"%s in node %s" % (volname, snapname, mnode))
return False
ret, _, _ = snap_restore(snapname, mnode=mnode)
if ret != 0:
tc.logger.error("snapshot restore cli execution failed")
return False
# Starting volume after snap restore
ret = start_volume(volname, mnode)
if not ret:
tc.logger.error("Failed to start volume %s after restoring snapshot "
"%s in node %s" % (volname, snapname, mnode))
return False
return True
def ctdb_gluster_setup(mnode=None, servers=None, meta_volname=None):
'''Setup CTDB on gluster setup
Kwargs:
mnode (str): Node on which the command has
to be executed. Default value is ctdb_servers[0]
servers (list): The list of servers on which we need
the CTDB setup.
Defaults to ctdb_servers as specified in the config file.
meta_volname (str) : Name for the ctdb meta volume.
Dafault ctdb meta volume name is "ctdb".
Returns:
bool: True if successful, False otherwise
Example:
ctdb_gluster_setup()
'''
if mnode is None:
mnode = (tc.global_config['gluster']['cluster_config']['smb']
['ctdb_servers'][0]['host'])
if servers is None:
servers = (tc.global_config['gluster']['cluster_config']['smb']
['ctdb_servers'])
server_host_list = []
for server in servers:
server_host_list.append(server['host'])
servers = server_host_list
if not isinstance(servers, list):
servers = [servers]
no_of_ctdb_servers = len(servers)
if meta_volname is None:
meta_volname = "ctdb"
# 1. firewall setting for ctdb setup
ret = ctdb_firewall_settings(servers[:])
if ret:
tc.logger.info("firewall settings successfull for ctdb setup")
else:
tc.logger.error("firewall settings failed for ctdb setup")
return False
# 2. peer probe
ret = peer_probe_servers(servers[:], mnode=mnode)
if not ret:
return False
# 3. create ctdb meta volume
ret = create_ctdb_meta_volume(mnode, servers[:], meta_volname)
if ret:
tc.logger.info("successfully created ctdb meta volume")
else:
tc.logger.error("failed to create ctdb meta volume")
return False
tc.run(mnode, "gluster v info %s" % meta_volname)
# 4. update the ctdb hook scripts
ret = update_hook_scripts(servers[:])
if ret:
tc.logger.info("successfully updated the hook scripts on all servers")
else:
tc.logger.error("failed to update the hook scripts on "
"one or more servers")
return False
# 5. update the smb.conf file
ret = update_smb_conf(servers[:])
if ret:
tc.logger.info("successfully updated the smb.conf file on all servers")
else:
tc.logger.error("failed to update the smb.conf file on "
"one or more servers")
return False
# 6a. start the meta volume
ret = start_volume(meta_volname, mnode)
if ret:
tc.logger.info("successfully started the meta volume")
tc.run(mnode, "gluster v status ctdb")
else:
tc.logger.error("failed to start the meta volume")
return False
time.sleep(20)
# 6.b check if /gluster/lock mount exists on all servers
ret = check_if_gluster_lock_mount_exists(servers[:])
if ret:
tc.logger.info("/gluster/lock mount exists on all servers")
else:
return False
# 7. check if /etc/sysconfig/ctdb file exists
ret = check_if_ctdb_file_exists(servers[:])
if ret:
tc.logger.info("/etc/sysconfig/ctdb file exists on all servers")
else:
return False
# 8. create /etc/ctdb/nodes file
ret = create_ctdb_nodes_file(servers[:])
if ret:
tc.logger.info("successfully created /etc/ctdb/nodes file on "
"all servers")
else:
tc.logger.error("failed to create /etc/ctdb/nodes file on "
"one or more servers")
return False
# 9. create /etc/ctdb/public_addresses file
ret = create_ctdb_public_addresses(servers[:])
if ret:
tc.logger.info("successfully created /etc/ctdb/public_addresses file "
"on all servers")
else:
tc.logger.error("failed to create /etc/ctdb/public_addresses file "
"on one or more servers")
return False
# 10. start the ctdb service
ret = start_ctdb_service(servers[:])
if ret:
tc.logger.info("successfully started ctdb service on all servers")
else:
return False
time.sleep(360)
# 11. verify the ctdb status
ret = verify_ctdb_status(mnode)
if ret:
tc.logger.info("ctdb status is correct")
else:
tc.logger.error("ctdb status is incorrect")
return False
return True
def ctdb_gluster_setup(mnode=None, servers=None, meta_volname=None):
'''Setup CTDB on gluster setup
Kwargs:
mnode (str): Node on which the command has
to be executed. Default value is ctdb_servers[0]
servers (list): The list of servers on which we need
the CTDB setup.
Defaults to ctdb_servers as specified in the config file.
meta_volname (str) : Name for the ctdb meta volume.
Dafault ctdb meta volume name is "ctdb".
Returns:
bool: True if successful, False otherwise
Example:
ctdb_gluster_setup()
'''
if mnode is None:
mnode = (tc.global_config['gluster']['cluster_config']
['smb']['ctdb_servers'][0])
if servers is None:
servers = (tc.global_config['gluster']['cluster_config']
['smb']['ctdb_servers'])
if not isinstance(servers, list):
servers = [servers]
no_of_ctdb_servers = len(servers)
if meta_volname is None:
meta_volname = "ctdb"
# 1. firewall setting for ctdb setup
ret = ctdb_firewall_settings(servers[:])
if ret:
tc.logger.info("firewall settings successfull for ctdb setup")
else:
tc.logger.error("firewall settings failed for ctdb setup")
return False
# 2. peer probe
ret = peer_probe_servers(servers[:], mnode=mnode)
if not ret:
return False
# 3. create ctdb meta volume
ret = create_ctdb_meta_volume(mnode, servers[:], meta_volname)
if ret:
tc.logger.info("successfully created ctdb meta volume")
else:
tc.logger.error("failed to create ctdb meta volume")
return False
tc.run(mnode, "gluster v info %s" % meta_volname)
# 4. update the ctdb hook scripts
ret = update_hook_scripts(servers[:])
if ret:
tc.logger.info("successfully updated the hook scripts on all servers")
else:
tc.logger.error("failed to update the hook scripts on "
"one or more servers")
return False
# 5. update the smb.conf file
ret = update_smb_conf(servers[:])
if ret:
tc.logger.info("successfully updated the smb.conf file on all servers")
else:
tc.logger.error("failed to update the smb.conf file on "
"one or more servers")
return False
# 6a. start the meta volume
ret = start_volume(meta_volname, mnode)
if ret:
tc.logger.info("successfully started the meta volume")
tc.run(mnode, "gluster v status ctdb")
else:
tc.logger.error("failed to start the meta volume")
return False
time.sleep(20)
# 6.b check if /gluster/lock mount exists on all servers
ret = check_if_gluster_lock_mount_exists(servers[:])
if ret:
tc.logger.info("/gluster/lock mount exists on all servers")
else:
return False
# 7. check if /etc/sysconfig/ctdb file exists
ret = check_if_ctdb_file_exists(servers[:])
if ret:
tc.logger.info("/etc/sysconfig/ctdb file exists on all servers")
else:
return False
# 8. create /etc/ctdb/nodes file
ret = create_ctdb_nodes_file(servers[:])
if ret:
tc.logger.info("successfully created /etc/ctdb/nodes file on "
"all servers")
else:
tc.logger.error("failed to create /etc/ctdb/nodes file on "
"one or more servers")
return False
# 9. create /etc/ctdb/public_addresses file
ret = create_ctdb_public_addresses(servers[:])
if ret:
tc.logger.info("successfully created /etc/ctdb/public_addresses file "
"on all servers")
else:
tc.logger.error("failed to create /etc/ctdb/public_addresses file "
"on one or more servers")
return False
# 10. start the ctdb service
ret = start_ctdb_service(servers[:])
if ret:
tc.logger.info("successfully started ctdb service on all servers")
else:
return False
time.sleep(360)
# 11. verify the ctdb status
ret = verify_ctdb_status(mnode)
if ret:
tc.logger.info("ctdb status is correct")
else:
tc.logger.error("ctdb status is incorrect")
return False
return True
