def disk(xid):
b_used, b_total, i_used, i_total = 0, 0, 0, 0
dl = vsutil.get_disk_limits(xid)
if not dl:
log("Warning: no limits on xid %s" % xid)
else:
b_used, b_total, i_used, i_total = dl["b_used"], dl["b_total"], dl["i_used"], dl["i_total"]
return {"vs_disk_b_used": b_used, "vs_disk_b_total": b_total, "vs_disk_i_used": i_used, "vs_disk_i_total": i_total}
def disk(xid):
b_used, b_total, i_used, i_total = 0, 0, 0, 0
dl = vsutil.get_disk_limits(xid)
if not dl:
log('Warning: no limits on xid %s' % xid)
else:
b_used, b_total, i_used, i_total = \
dl['b_used'], dl['b_total'], dl['i_used'], dl['i_total']
return {
'vs_disk_b_used': b_used,
'vs_disk_b_total': b_total,
'vs_disk_i_used': i_used,
'vs_disk_i_total': i_total
}
def dump(vserver_name, refserver, outfile, pace=cfg.PACE[0]):
# Save the difference between reference and the server in an
# archive The archive is encrypted. This is because you have to
# trust it before you try restoring it. It is also better for any
# backed up data to be encrypted always.
# pace counter
p = 0
# this will also strip trailing slashes
vserver, refserver = os.path.abspath(os.path.join(cfg.VSERVERS_ROOT, vserver_name)), \
os.path.abspath(refserver)
print 'Dumping %s in reference to %s ... (this will take a while)' % (
vserver, refserver)
# this will prevent some warnings
os.chdir(cfg.VSERVERS_ROOT)
# first we need a header. for now the header format is:
# "openvps-dump|Fedora Core release 2 (Tettnang)|2004010101|userid|ctxid|ip|hmac"
# where the fields are:
# * \0openvps-dump (constant) (the \0 makes it apear like a binary file to less)
# * /etc/fedora-release from reference server
# * /etc/openvps-release from reference (default to YYYYMMDDHHMMSS
# * name of vserver
# * context id of vserver
# * ips in format dev:ip/mask,dev:ip/mask
# * current disk limits (the argument to -S of vdlim)
# * hmac of the preceeding string
config = vsutil.get_vserver_config(vserver_name)
header = ['\0openvps-dump']
header.append(
open(os.path.join(refserver, 'etc/fedora-release')).read().strip())
if os.path.exists(os.path.join(refserver, 'etc/openvps-release')):
header.append(
open(os.path.join(refserver,
'etc/openvps-release')).read().strip())
else:
header.append(time.strftime('%Y%m%d%H%M%S', time.localtime()))
header.append(vserver_name)
header.append(config['context'])
header.append(','.join([
'%s:%s/%s' % (i['dev'], i['ip'], i['mask'])
for i in config['interfaces']
]))
dl = vsutil.get_disk_limits(config['context'])
if dl:
header.append('%s,%s,%s,%s,%s' %
(dl['b_used'], dl['b_total'], dl['i_used'],
dl['i_total'], dl['root']))
else:
print 'Wargning: no disk limits for xid %s' % config['context']
header.append('None')
# turn it into string
header = '|'.join(header)
# sign it
digest = hmac.new(cfg.DUMP_SECRET, header).hexdigest()
# now write to our file
open(outfile, 'w').write('%s|%s|\0' % (header, digest))
# open a pipe to cpio
fd_r, fd_w = os.pipe()
# write the password to the new file descriptor so openssl can read it
os.write(fd_w, cfg.DUMP_SECRET + '\n')
# cpio will be fed the list of files to archive. the output is compressed using
# bzip2, then encrypted with openssl using blowfish
cmd = '/bin/cpio -oHcrc | /usr/bin/bzip2 | /usr/bin/openssl bf -salt -pass fd:%d >> %s' % (
fd_r, outfile)
pipe = os.popen(cmd, 'w', 0)
# the first things to go into the archive should be the config and rrd
# config
cfg_dir = os.path.join(cfg.ETC_VSERVERS, vserver_name)
cmd = '/usr/bin/find %s -print' % cfg_dir
cfg_files = commands.getoutput(cmd)
pipe.write(cfg_files + '\n')
# the rrd
rrd_path = os.path.join(cfg.VAR_DB_OPENVPS, vserver_name + '.rrd')
pipe.write(rrd_path + '\n')
#print source, dest
for root, dirs, files in os.walk(vserver, topdown=False):
for file in files + dirs:
if pace and p >= pace:
sys.stdout.write('.')
sys.stdout.flush()
time.sleep(cfg.PACE[1])
p = 0
else:
p += 1
src = os.path.join(root, file)
# reldst is they way it would look inside vserver
reldst = os.path.join(max(root[len(vserver):], '/'), file)
dst = os.path.join(refserver, reldst[1:])
if os.path.exists(dst):
if os.path.islink(dst) or os.path.isdir(
dst) or not os.path.isfile(dst):
# If this is a link, dir or other non-file, their
# mere existence is sufficient, no need to compare
# inodes since these are never unified. But we
# need to make sure they are not skipped (copy
# means they will be there after cloning, touch
# doesn't apply here)
c, t, s = match_path(file)
if not s:
continue
else:
# this is a regular file that exists in both
# reference and our server, let's compare inodes
src_stat = os.lstat(src)
dst_stat = os.lstat(dst)
if src_stat.st_ino == dst_stat.st_ino:
# inodes match, this is a unified file, no
# reason to back it up
continue
pipe.write(src + '\n')
os.close(fd_w)
pipe.close()
def dump(vserver_name, refserver, outfile, pace=cfg.PACE[0]):
# Save the difference between reference and the server in an
# archive The archive is encrypted. This is because you have to
# trust it before you try restoring it. It is also better for any
# backed up data to be encrypted always.
# pace counter
p = 0
# this will also strip trailing slashes
vserver, refserver = os.path.abspath(os.path.join(cfg.VSERVERS_ROOT, vserver_name)), \
os.path.abspath(refserver)
print 'Dumping %s in reference to %s ... (this will take a while)' % (vserver, refserver)
# this will prevent some warnings
os.chdir(cfg.VSERVERS_ROOT)
# first we need a header. for now the header format is:
# "openvps-dump|Fedora Core release 2 (Tettnang)|2004010101|userid|ctxid|ip|hmac"
# where the fields are:
# * \0openvps-dump (constant) (the \0 makes it apear like a binary file to less)
# * /etc/fedora-release from reference server
# * /etc/openvps-release from reference (default to YYYYMMDDHHMMSS
# * name of vserver
# * context id of vserver
# * ips in format dev:ip/mask,dev:ip/mask
# * current disk limits (the argument to -S of vdlim)
# * hmac of the preceeding string
config = vsutil.get_vserver_config(vserver_name)
header = ['\0openvps-dump']
header.append(open(os.path.join(refserver, 'etc/fedora-release')).read().strip())
if os.path.exists(os.path.join(refserver, 'etc/openvps-release')):
header.append(open(os.path.join(refserver, 'etc/openvps-release')).read().strip())
else:
header.append(time.strftime('%Y%m%d%H%M%S', time.localtime()))
header.append(vserver_name)
header.append(config['context'])
header.append(','.join(['%s:%s/%s' % (i['dev'], i['ip'], i['mask']) for i in config['interfaces']]))
dl = vsutil.get_disk_limits(config['context'])
if dl:
header.append('%s,%s,%s,%s,%s' % (dl['b_used'], dl['b_total'], dl['i_used'], dl['i_total'], dl['root']))
else:
print 'Wargning: no disk limits for xid %s' % config['context']
header.append('None')
# turn it into string
header = '|'.join(header)
# sign it
digest = hmac.new(cfg.DUMP_SECRET, header).hexdigest()
# now write to our file
open(outfile, 'w').write('%s|%s|\0' % (header, digest))
# open a pipe to cpio
fd_r, fd_w = os.pipe()
# write the password to the new file descriptor so openssl can read it
os.write(fd_w, cfg.DUMP_SECRET+'\n')
# cpio will be fed the list of files to archive. the output is compressed using
# bzip2, then encrypted with openssl using blowfish
cmd = '/bin/cpio -oHcrc | /usr/bin/bzip2 | /usr/bin/openssl bf -salt -pass fd:%d >> %s' % (fd_r, outfile)
pipe = os.popen(cmd, 'w', 0)
# the first things to go into the archive should be the config and rrd
# config
cfg_dir = os.path.join(cfg.ETC_VSERVERS, vserver_name)
cmd = '/usr/bin/find %s -print' % cfg_dir
cfg_files = commands.getoutput(cmd)
pipe.write(cfg_files+'\n')
# the rrd
rrd_path = os.path.join(cfg.VAR_DB_OPENVPS, vserver_name+'.rrd')
pipe.write(rrd_path+'\n')
#print source, dest
for root, dirs, files in os.walk(vserver, topdown=False):
for file in files + dirs:
if pace and p >= pace:
sys.stdout.write('.'); sys.stdout.flush()
time.sleep(cfg.PACE[1])
p = 0
else:
p += 1
src = os.path.join(root, file)
# reldst is they way it would look inside vserver
reldst = os.path.join(max(root[len(vserver):], '/'), file)
dst = os.path.join(refserver, reldst[1:])
if os.path.exists(dst):
if os.path.islink(dst) or os.path.isdir(dst) or not os.path.isfile(dst):
# If this is a link, dir or other non-file, their
# mere existence is sufficient, no need to compare
# inodes since these are never unified. But we
# need to make sure they are not skipped (copy
# means they will be there after cloning, touch
# doesn't apply here)
c, t, s = match_path(file)
if not s:
continue
else:
# this is a regular file that exists in both
# reference and our server, let's compare inodes
src_stat = os.lstat(src)
dst_stat = os.lstat(dst)
if src_stat.st_ino == dst_stat.st_ino:
# inodes match, this is a unified file, no
# reason to back it up
continue
pipe.write(src+'\n')
os.close(fd_w)
pipe.close()