1 #!/usr/bin/env python2.7
6 import os, sys, subprocess, shutil, re, argparse
9 XSEG_HOME="/root/archip/xseg/"
10 IMAGES="/srv/pithos/archip-data/images/"
11 XSEGBD_SYSFS="/sys/bus/xsegbd/"
12 DEVICE_PREFIX="/dev/xsegbd"
13 BLOCKD_LOGS="/srv/pithos/archip-data/logs/"
16 print "name\t\t\t\tsize"
18 for f in os.listdir(IMAGES):
19 print "%s\t\t\t\t%dM" % (f, os.stat(IMAGES + f).st_size / 1024 / 1024)
22 except Exception, reason:
23 print >> sys.stderr, reason
26 def vlmc_create(args):
44 shutil.copyfile(snap, name)
46 f = os.open(name, os.O_CREAT | os.O_WRONLY, 0755)
48 os.lseek(f, size - 1, os.SEEK_SET)
54 except Exception, reason:
55 print >> sys.stderr, reason
58 def vlmc_remove(args):
68 print "file doesn't exist"
72 os.unlink(IMAGES + '/' + name)
76 except Exception, reason:
77 print >> sys.stderr, reason
84 r = subprocess.check_output(["ps", "-o", "command", "-C",
85 "blockd"]).splitlines()[1:]
86 result = [int(re.search('-p (\d+)', x).group(1)) for x in r]
101 old_dir = os.getcwd()
103 f = os.open(BLOCKD_LOGS + name, os.O_CREAT | os.O_WRONLY)
104 r = subprocess.Popen([XSEG_HOME + "peers/blockd", name, "-p", str(port),
105 "-g", "xsegdev:xsegbd:128:4096:64:1024:12"], stdout=f, stderr=f)
108 fd = os.open(XSEGBD_SYSFS + "add", os.O_WRONLY)
109 os.write(fd, "%s %d:%d:128" % (name, port + 64, port))
111 except Exception, reason:
112 print >> sys.stderr, reason
115 def vlmc_unmap(args):
116 device = args.name[0]
118 for f in os.listdir(XSEGBD_SYSFS + "devices/"):
119 d_id = open(XSEGBD_SYSFS + "devices/" + f + "/id").read().strip()
120 name = open(XSEGBD_SYSFS + "devices/"+ f + "/name").read().strip()
121 if device == DEVICE_PREFIX + d_id:
122 fd = os.open(XSEGBD_SYSFS + "remove", os.O_WRONLY)
128 subprocess.check_output(["pkill", "-f", "blockd " + name + " "])
129 except Exception, reason:
130 print >> sys.stderr, reason
133 def vlmc_showmapped(args):
134 print "id\tpool\timage\tsnap\tdevice"
136 for f in os.listdir(XSEGBD_SYSFS + "devices/"):
137 d_id = open(XSEGBD_SYSFS + "devices/" + f + "/id").read().strip()
138 name = open(XSEGBD_SYSFS + "devices/"+ f + "/name").read().strip()
140 print "%s\t%s\t%s\t%s\t%s" % (d_id, '-', name, '-', DEVICE_PREFIX +
142 except Exception, reason:
143 print >> sys.stderr, reason
146 if __name__ == "__main__":
147 # parse arguments and discpatch to the correct func
148 parser = argparse.ArgumentParser(description='vlmc tool')
149 parser.add_argument('-c', '--config', type=str, nargs='?', help='config file')
150 subparsers = parser.add_subparsers()
152 create_parser = subparsers.add_parser('create', help='Create volume')
153 group = create_parser.add_mutually_exclusive_group(required=True)
154 group.add_argument('-s', '--size', type=int, nargs='?', help='requested size in MB for create')
155 group.add_argument('--snap', type=str, nargs='?', help='create from snapshot')
156 create_parser.add_argument('-p', '--pool', type=str, nargs='?', help='for backwards compatiblity with rbd')
157 create_parser.add_argument('name', type=str, nargs=1, help='volume/device name')
158 create_parser.set_defaults(func=vlmc_create)
160 remove_parser = subparsers.add_parser('remove', help='Delete volume')
161 remove_parser.add_argument('name', type=str, nargs=1, help='volume/device name')
162 remove_parser.set_defaults(func=vlmc_remove)
163 remove_parser.add_argument('-p', '--pool', type=str, nargs='?', help='for backwards compatiblity with rbd')
165 rm_parser = subparsers.add_parser('rm', help='Delete volume')
166 rm_parser.add_argument('name', type=str, nargs=1, help='volume/device name')
167 rm_parser.set_defaults(func=vlmc_remove)
168 rm_parser.add_argument('-p', '--pool', type=str, nargs='?', help='for backwards compatiblity with rbd')
170 map_parser = subparsers.add_parser('map', help='Map volume')
171 map_parser.add_argument('name', type=str, nargs=1, help='volume/device name')
172 map_parser.set_defaults(func=vlmc_map)
173 map_parser.add_argument('-p', '--pool', type=str, nargs='?', help='for backwards compatiblity with rbd')
175 unmap_parser = subparsers.add_parser('unmap', help='Unmap volume')
176 unmap_parser.add_argument('name', type=str, nargs=1, help='volume/device name')
177 unmap_parser.set_defaults(func=vlmc_unmap)
178 unmap_parser.add_argument('-p', '--pool', type=str, nargs='?', help='for backwards compatiblity with rbd')
180 showmapped_parser = subparsers.add_parser('showmapped', help='Show mapped volumes')
181 showmapped_parser.set_defaults(func=vlmc_showmapped)
182 showmapped_parser.add_argument('-p', '--pool', type=str, nargs='?', help='for backwards compatiblity with rbd')
184 list_parser = subparsers.add_parser('list', help='List volumes')
185 list_parser.set_defaults(func=vlmc_list)
186 list_parser.add_argument('-p', '--pool', type=str, nargs='?', help='for backwards compatiblity with rbd')
188 ls_parser = subparsers.add_parser('ls', help='List volumes')
189 ls_parser.set_defaults(func=vlmc_list)
190 ls_parser.add_argument('-p', '--pool', type=str, nargs='?', help='for backwards compatiblity with rbd')
192 args = parser.parse_args()
196 if args.config == None:
197 execfile(os.path.expanduser("~/.xsegrc"))
199 execfile(args.config)