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#!/usr/bin/python3
# -*- coding: utf-8 -*-
#
# Copyright (c) 2016 Red Hat, Inc. <http://www.redhat.com>
# This file is part of GlusterFS.
#
# This file is licensed to you under your choice of the GNU Lesser
# General Public License, version 3 or any later version (LGPLv3 or
# later), or the GNU General Public License, version 2 (GPLv2), in all
# cases as published by the Free Software Foundation.
#
from argparse import ArgumentParser
import time
import os
from errno import EEXIST
import sys
import logging
from logutils import setup_logging
import gsyncdconfig as gconf
from rconf import rconf
import subcmds
from conf import GLUSTERD_WORKDIR, GLUSTERFS_CONFDIR, GCONF_VERSION
from syncdutils import set_term_handler, finalize, lf
from syncdutils import log_raise_exception, FreeObject, escape
import argsupgrade
GSYNCD_VERSION = "gsyncd.py %s.0" % GCONF_VERSION
def main():
rconf.starttime = time.time()
# If old Glusterd sends commands in old format, below function
# converts the sys.argv to new format. This conversion is added
# temporarily for backward compatibility. This can be removed
# once integrated with Glusterd2
# This modifies sys.argv globally, so rest of the code works as usual
argsupgrade.upgrade()
# Default argparse version handler prints to stderr, which is fixed in
# 3.x series but not in 2.x, using custom parser to fix this issue
if "--version" in sys.argv:
print(GSYNCD_VERSION)
sys.exit(0)
parser = ArgumentParser()
parser.add_argument("--inet6", action="store_true")
sp = parser.add_subparsers(dest="subcmd")
# Monitor Status File update
p = sp.add_parser("monitor-status")
p.add_argument("master", help="Master Volume Name")
p.add_argument("slave", help="Slave details user@host::vol format")
p.add_argument("status", help="Update Monitor Status")
p.add_argument("-c", "--config-file", help="Config File")
p.add_argument("--debug", action="store_true")
# Monitor
p = sp.add_parser("monitor")
p.add_argument("master", help="Master Volume Name")
p.add_argument("slave", help="Slave details user@host::vol format")
p.add_argument("-c", "--config-file", help="Config File")
p.add_argument("--pause-on-start",
action="store_true",
help="Start with Paused state")
p.add_argument("--local-node-id", help="Local Node ID")
p.add_argument("--debug", action="store_true")
p.add_argument("--use-gconf-volinfo", action="store_true")
# Worker
p = sp.add_parser("worker")
p.add_argument("master", help="Master Volume Name")
p.add_argument("slave", help="Slave details user@host::vol format")
p.add_argument("--local-path", help="Local Brick Path")
p.add_argument("--feedback-fd", type=int,
help="feedback fd between monitor and worker")
p.add_argument("--local-node", help="Local master node")
p.add_argument("--local-node-id", help="Local Node ID")
p.add_argument("--rpc-fd",
help="Read and Write fds for worker-agent communication")
p.add_argument("--subvol-num", type=int, help="Subvolume number")
p.add_argument("--is-hottier", action="store_true",
help="Is this brick part of hot tier")
p.add_argument("--resource-remote",
help="Remote node to connect to Slave Volume")
p.add_argument("--resource-remote-id",
help="Remote node ID to connect to Slave Volume")
p.add_argument("--slave-id", help="Slave Volume ID")
p.add_argument("-c", "--config-file", help="Config File")
p.add_argument("--debug", action="store_true")
# Agent
p = sp.add_parser("agent")
p.add_argument("master", help="Master Volume Name")
p.add_argument("slave", help="Slave details user@host::vol format")
p.add_argument("--local-path", help="Local brick path")
p.add_argument("--local-node", help="Local master node")
p.add_argument("--local-node-id", help="Local Node ID")
p.add_argument("--slave-id", help="Slave Volume ID")
p.add_argument("--rpc-fd",
help="Read and Write fds for worker-agent communication")
p.add_argument("-c", "--config-file", help="Config File")
p.add_argument("--debug", action="store_true")
# Slave
p = sp.add_parser("slave")
p.add_argument("master", help="Master Volume Name")
p.add_argument("slave", help="Slave details user@host::vol format")
p.add_argument("--session-owner")
p.add_argument("--master-brick",
help="Master brick which is connected to the Slave")
p.add_argument("--master-node",
help="Master node which is connected to the Slave")
p.add_argument("--master-node-id",
help="Master node ID which is connected to the Slave")
p.add_argument("--local-node", help="Local Slave node")
p.add_argument("--local-node-id", help="Local Slave ID")
p.add_argument("-c", "--config-file", help="Config File")
p.add_argument("--debug", action="store_true")
# All configurations which are configured via "slave-" options
# DO NOT add default values for these configurations, default values
# will be picked from template config file
p.add_argument("--slave-timeout", type=int,
help="Timeout to end gsyncd at Slave side")
p.add_argument("--use-rsync-xattrs", action="store_true")
p.add_argument("--slave-log-level", help="Slave Gsyncd Log level")
p.add_argument("--slave-gluster-log-level",
help="Slave Gluster mount Log level")
p.add_argument("--slave-gluster-command-dir",
help="Directory where Gluster binaries exist on slave")
p.add_argument("--slave-access-mount", action="store_true",
help="Do not lazy umount the slave volume")
# Status
p = sp.add_parser("status")
p.add_argument("master", help="Master Volume Name")
p.add_argument("slave", help="Slave")
p.add_argument("-c", "--config-file", help="Config File")
p.add_argument("--local-path", help="Local Brick Path")
p.add_argument("--debug", action="store_true")
p.add_argument("--json", action="store_true")
# Config-check
p = sp.add_parser("config-check")
p.add_argument("name", help="Config Name")
p.add_argument("--value", help="Config Value")
p.add_argument("--debug", action="store_true")
# Config-get
p = sp.add_parser("config-get")
p.add_argument("master", help="Master Volume Name")
p.add_argument("slave", help="Slave")
p.add_argument("--name", help="Config Name")
p.add_argument("-c", "--config-file", help="Config File")
p.add_argument("--debug", action="store_true")
p.add_argument("--show-defaults", action="store_true")
p.add_argument("--only-value", action="store_true")
p.add_argument("--use-underscore", action="store_true")
p.add_argument("--json", action="store_true")
# Config-set
p = sp.add_parser("config-set")
p.add_argument("master", help="Master Volume Name")
p.add_argument("slave", help="Slave")
p.add_argument("-n", "--name", help="Config Name")
p.add_argument("-v", "--value", help="Config Value")
p.add_argument("-c", "--config-file", help="Config File")
p.add_argument("--debug", action="store_true")
# Config-reset
p = sp.add_parser("config-reset")
p.add_argument("master", help="Master Volume Name")
p.add_argument("slave", help="Slave")
p.add_argument("name", help="Config Name")
p.add_argument("-c", "--config-file", help="Config File")
p.add_argument("--debug", action="store_true")
# voluuidget
p = sp.add_parser("voluuidget")
p.add_argument("host", help="Hostname")
p.add_argument("volname", help="Volume Name")
p.add_argument("--debug", action="store_true")
# Delete
p = sp.add_parser("delete")
p.add_argument("master", help="Master Volume Name")
p.add_argument("slave", help="Slave")
p.add_argument("-c", "--config-file", help="Config File")
p.add_argument('--path', dest='paths', action="append")
p.add_argument("--reset-sync-time", action="store_true",
help="Reset Sync Time")
p.add_argument("--debug", action="store_true")
# Parse arguments
args = parser.parse_args()
# Extra template values, All arguments are already part of template
# variables, use this for adding extra variables
extra_tmpl_args = {}
# Add First/Primary Slave host, user and volume
if getattr(args, "slave", None) is not None:
hostdata, slavevol = args.slave.split("::")
hostdata = hostdata.split("@")
slavehost = hostdata[-1]
slaveuser = "root"
if len(hostdata) == 2:
slaveuser = hostdata[0]
extra_tmpl_args["primary_slave_host"] = slavehost
extra_tmpl_args["slaveuser"] = slaveuser
extra_tmpl_args["slavevol"] = slavevol
# Add Bricks encoded path
if getattr(args, "local_path", None) is not None:
extra_tmpl_args["local_id"] = escape(args.local_path)
# Add Master Bricks encoded path(For Slave)
if getattr(args, "master_brick", None) is not None:
extra_tmpl_args["master_brick_id"] = escape(args.master_brick)
# Load configurations
config_file = getattr(args, "config_file", None)
# Subcmd accepts config file argument but not passed
# Set default path for config file in that case
# If an subcmd accepts config file then it also accepts
# master and Slave arguments.
if config_file is None and hasattr(args, "config_file"):
config_file = "%s/geo-replication/%s_%s_%s/gsyncd.conf" % (
GLUSTERD_WORKDIR,
args.master,
extra_tmpl_args["primary_slave_host"],
extra_tmpl_args["slavevol"])
# If Config file path not exists, log error and continue using default conf
config_file_error_msg = None
if config_file is not None and not os.path.exists(config_file):
# Logging not yet initialized, create the error message to
# log later and reset the config_file to None
config_file_error_msg = lf(
"Session config file not exists, using the default config",
path=config_file)
config_file = None
rconf.config_file = config_file
# Override gconf values from argument values only if it is slave gsyncd
override_from_args = False
if args.subcmd == "slave":
override_from_args = True
if args.subcmd == "monitor":
ret = gconf.is_config_file_old(config_file, args.master, extra_tmpl_args["slavevol"])
if ret is not None:
gconf.config_upgrade(config_file, ret)
# Load Config file
gconf.load(GLUSTERFS_CONFDIR + "/gsyncd.conf",
config_file,
vars(args),
extra_tmpl_args,
override_from_args)
# Default label to print in log file
label = args.subcmd
if args.subcmd in ("worker", "agent"):
# If Worker or agent, then add brick path also to label
label = "%s %s" % (args.subcmd, args.local_path)
elif args.subcmd == "slave":
# If Slave add Master node and Brick details
label = "%s %s%s" % (args.subcmd, args.master_node, args.master_brick)
# Setup Logger
# Default log file
log_file = gconf.get("cli-log-file")
log_level = gconf.get("cli-log-level")
if getattr(args, "master", None) is not None and \
getattr(args, "slave", None) is not None:
log_file = gconf.get("log-file")
log_level = gconf.get("log-level")
# Use different log file location for Slave log file
if args.subcmd == "slave":
log_file = gconf.get("slave-log-file")
log_level = gconf.get("slave-log-level")
if args.debug:
log_file = "-"
log_level = "DEBUG"
# Create Logdir if not exists
try:
if log_file != "-":
os.mkdir(os.path.dirname(log_file))
except OSError as e:
if e.errno != EEXIST:
raise
setup_logging(
log_file=log_file,
level=log_level,
label=label
)
if config_file_error_msg is not None:
logging.warn(config_file_error_msg)
# Log message for loaded config file
if config_file is not None:
logging.info(lf("Using session config file", path=config_file))
set_term_handler()
excont = FreeObject(exval=0)
# Gets the function name based on the input argument. For example
# if subcommand passed as argument is monitor then it looks for
# function with name "subcmd_monitor" in subcmds file
func = getattr(subcmds, "subcmd_" + args.subcmd.replace("-", "_"), None)
try:
try:
if func is not None:
rconf.args = args
func(args)
except:
log_raise_exception(excont)
finally:
finalize(exval=excont.exval)
if __name__ == "__main__":
main()
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