check-zfs-replication/check-snapshot-age

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2022-11-03 22:52:05 +01:00
#!/usr/bin/env python3
import subprocess
import re
import time
#_snapshots = open("zfs.txt","r").read()
_snapshots = subprocess.check_output("/usr/sbin/zfs list -t snapshot -Hpo name,creation".split())
LABELS=("frequent","hourly","daily","weekly","monthly","yearly","backup-zfs","bashclub-zfs")
RE_LABELSEARCH = re.compile("|".join(LABELS))
_datasets = {}
for _datastore,_snapshot,_creation in re.findall("^([\w_./-]+)@([\w_.-]+)\t(\d+)",_snapshots.decode('utf-8'),re.M):
if _datastore not in _datasets:
_datasets[_datastore] = {}
_label = RE_LABELSEARCH.search(_snapshot)
if _label:
_label = _label.group(0)
else:
_label = "other"
if _label not in _datasets[_datastore]:
_datasets[_datastore][_label] = []
_datasets[_datastore][_label].append((_snapshot,int(_creation)))
for _datastore in _datasets.keys():
print(_datastore)
print("-"*40)
for _label in _datasets[_datastore].keys():
_data = _datasets[_datastore][_label]
_first = time.strftime("%d.%m.%Y %H:%M:%S",time.localtime(_data[0][1]))
_last = time.strftime("%d.%m.%Y %H:%M:%S",time.localtime(_data[-1][1]))
_count = len(_data)
print(f" {_label} {_count}")
print(f" {_first} {_data[0][0]}")
if _count > 1:
print(f" {_last} {_data[-1][0]}")
print("")