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#!/usr/bin/python
# Copyright 2010, 2011 Peter Palfrader
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import datetime
import dateutil.parser
import optparse
import os
import re
import sys
import glob
parser = optparse.OptionParser()
parser.set_usage("%prog [options] <backuprepository>")
parser.add_option("-q", "--quiet", dest="quiet", default=False, action="store_true",
help="Silent mode (exit code only)")
parser.add_option("-w", "--warn", metavar="AGE", dest="warn",
help="Warn if backup older than (default: 28h)")
parser.add_option("-c", "--critical", metavar="AGE", dest="critical",
help="Warn if backup older than (default: 72h)")
(options, args) = parser.parse_args()
if len(args) == 0:
parser.print_help()
sys.exit(1)
log = []
exitcode = 0
backup_per_code = {}
def code_to_prefix(code):
if code == 3: return 'UNKNOWN: '
elif code == 2: return 'CRITICAL: '
elif code == 1: return 'WARNING: '
elif code == 0: return 'OK: '
else: raise ValueError
def convert_time(s, default_unit='h'):
m = re.match('([0-9]+)([smhdw])?$', s)
if m is None: raise ValueError
ticks = int(m.group(1))
unit = m.group(2)
if unit is None: unit = default_unit
if unit == 's': None
elif unit == 'm': ticks *= 60
elif unit == 'h': ticks *= 60*60
elif unit == 'd': ticks *= 60*60*24
elif unit == 'w': ticks *= 60*60*24*7
else: raise ValueError
return ticks
def record(code, base, msg):
global exitcode
if not code in backup_per_code: backup_per_code[code] = []
backup_per_code[code].append(base)
prefix = code_to_prefix(code)
log.append("%s%s: %s"%(prefix, base, msg))
if code > exitcode: exitcode = code
def get_ts_from_fn(base, fn):
m = re.match('current_mirror\.(.*)\.data$', fn)
if m is None:
record(2, base, "backup wedged - cannot parse current mirrors filename '%s'."%(fn))
return None
try:
ts = dateutil.parser.parse(m.group(1))
except ValueError:
record(2, base, "backup wedged - cannot parse datestring '%s' from filename '%s'."%(m.group(1), fn))
return None
return ts
if options.warn is None: options.warn = '28'
if options.critical is None: options.critical = '72'
options.warn = datetime.timedelta(seconds = convert_time(options.warn))
options.critical = datetime.timedelta(seconds = convert_time(options.critical))
for base in args:
data_dir = os.path.join(base, 'rdiff-backup-data')
if not os.path.exists(base):
record(2, base, "not a directory")
continue
if not os.path.isdir(data_dir):
record(2, base, "does not seem to be an rdiff-backup backup directory")
continue
os.chdir(data_dir)
current_mirrors = glob.glob('current_mirror.*.data')
if len(current_mirrors) == 0:
record(2, base, "no current backups? (current_mirror.* not found)")
continue
elif len(current_mirrors) == 2: # one backup is currently running, presumably
current_mirrors.sort()
elif len(current_mirrors) == 1: # only one backup is current, good.
None
else:
record(2, base, "backup wedged - too many current_mirror.* files")
continue
ts = get_ts_from_fn(base, current_mirrors[0])
age = datetime.datetime.now(ts.tzinfo) - ts
if age > options.critical:
record(2, base, "backup is old (%s)."%(age))
continue
elif age > options.warn:
record(1, base, "backup is old (%s)."%(age))
continue
else:
record(0, base, "backup is current (age: %s)."%(age))
continue
def record(code, base, msg):
if not code in backup_per_code: backup_per_code[code] = []
backup_per_code[code].append(base)
report = []
keys = backup_per_code.keys()
keys.sort(reverse=True)
for code in keys:
prefix = code_to_prefix(code)
report.append( prefix + ', '.join(backup_per_code[code]) )
if not options.quiet:
print '; '.join(report)
for l in log: print l
sys.exit(exitcode)
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