/usr/lib/x86_64-linux-gnu/glusterfs/peer_mountbroker is in glusterfs-common 3.8.8-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 | #!/usr/bin/env python
import os
from argparse import ArgumentParser, RawDescriptionHelpFormatter
import json
import sys
PROG_DESCRIPTION = """
GlusterFS Mountbroker user management
"""
args = None
def ok(message=""):
if (not args and "-j" in sys.argv) or (args and args.json):
print json.dumps({"ok": True, "message": message})
else:
if message:
print message
sys.exit(0)
def notok(message=""):
if (not args and "-j" in sys.argv) or (args and args.json):
print json.dumps({"ok": False, "message": message})
else:
print "error: %s" % message
# Always return zero due to limitation while executing
# as `gluster system:: execute`
sys.exit(0)
class NoStdErrParser(ArgumentParser):
"""
with gluster system:: execute, stderr gives
"Unable to end. Error : Bad file descriptor" error,
so deriving new class, prints error message and
exits with zero.
"""
def error(self, message):
notok(message)
class MountbrokerUserMgmt(object):
def __init__(self, volfile):
self.volfile = volfile
self._options = {}
self.commented_lines = []
self._parse()
def _parse(self):
with open(self.volfile, "r") as f:
for line in f:
line = line.strip()
if line.startswith("option "):
key, value = line.split(" ")[1:]
self._options[key] = value
if line.startswith("#"):
self.commented_lines.append(line)
def _get_write_data(self):
op = "volume management\n"
op += " type mgmt/glusterd\n"
for k, v in self._options.iteritems():
op += " option %s %s\n" % (k, v)
for line in self.commented_lines:
op += " %s\n" % line
op += "end-volume"
return op
def save(self):
with open(self.volfile + "_tmp", "w") as f:
f.write(self._get_write_data())
f.flush()
os.fsync(f.fileno())
os.rename(self.volfile + "_tmp", self.volfile)
def set_opt(self, key, value):
self._options[key] = value.strip()
def remove_opt(self, key):
if key in self._options:
del(self._options[key])
def add_user(self, user, volumes):
vols = set()
for k, v in self._options.iteritems():
if k.startswith("mountbroker-geo-replication.") \
and user == k.split(".")[-1]:
vols.update(v.split(","))
vols.update(volumes)
self.set_opt("mountbroker-geo-replication.%s" % user,
",".join(vols))
def remove_volume(self, user, volumes):
vols = set()
for k, v in self._options.iteritems():
if k.startswith("mountbroker-geo-replication.") \
and user == k.split(".")[-1]:
vols.update(v.split(","))
for v1 in volumes:
vols.discard(v1)
if vols:
self.set_opt("mountbroker-geo-replication.%s" % user,
",".join(vols))
else:
self.remove_opt("mountbroker-geo-replication.%s" % user)
def remove_user(self, user):
self.remove_opt("mountbroker-geo-replication.%s" % user)
def info(self):
data = {"users": []}
for k, v in self._options.iteritems():
if k.startswith("mountbroker-geo-replication."):
data["users"].append(
{"name": k.split(".")[-1], "volumes": v.split(",")}
)
else:
data[k] = v
return data
def format_info(data):
op = "%s %s\n" % ("Option".ljust(50), "Value".ljust(50))
op += ("-" * 101) + "\n"
for key, value in data.iteritems():
if key != "users":
op += "%s %s\n" % (key.ljust(50), value)
op += "\nUsers: %s\n" % ("None" if not data["users"] else "")
for user in data["users"]:
op += "%s: %s\n" % (user["name"], ", ".join(user["volumes"]))
op += "\n\n"
return op
def _get_args():
parser = NoStdErrParser(formatter_class=RawDescriptionHelpFormatter,
description=PROG_DESCRIPTION)
parser.add_argument('-j', dest="json", help="JSON output",
action="store_true")
subparsers = parser.add_subparsers(title='subcommands', dest='cmd')
parser_useradd = subparsers.add_parser('user')
parser_userdel = subparsers.add_parser('userdel')
parser_volumedel = subparsers.add_parser('volumedel')
subparsers.add_parser('info')
parser_opt = subparsers.add_parser('opt')
parser_optdel = subparsers.add_parser('optdel')
parser_useradd.add_argument('username', help="Username", type=str)
parser_useradd.add_argument('volumes', type=str, default='',
help="Volumes list. ',' separated")
parser_volumedel.add_argument('username', help="Username", type=str)
parser_volumedel.add_argument('volumes', type=str, default='',
help="Volumes list. ',' separated")
parser_userdel.add_argument('username', help="Username", type=str)
parser_opt.add_argument('opt_name', help="Name", type=str)
parser_opt.add_argument('opt_value', help="Value", type=str)
parser_optdel.add_argument('opt_name', help="Name", type=str)
return parser.parse_args()
def main():
global args
args = _get_args()
m = MountbrokerUserMgmt("/etc/glusterfs/glusterd.vol")
if args.cmd == "opt":
m.set_opt(args.opt_name, args.opt_value)
elif args.cmd == "optdel":
m.remove_opt(args.opt_name)
elif args.cmd == "userdel":
m.remove_user(args.username)
elif args.cmd == "user":
volumes = [v.strip() for v in args.volumes.split(",")
if v.strip() != ""]
m.add_user(args.username, volumes)
elif args.cmd == "volumedel":
volumes = [v.strip() for v in args.volumes.split(",")
if v.strip() != ""]
m.remove_volume(args.username, volumes)
elif args.cmd == "info":
info = m.info()
if not args.json:
info = format_info(info)
ok(info)
if args.cmd != "info":
m.save()
ok()
if __name__ == "__main__":
main()
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