-
Notifications
You must be signed in to change notification settings - Fork 1
/
shappy
executable file
·161 lines (136 loc) · 4.33 KB
/
shappy
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
#!/bin/sh
help() {
echo "Usage: $0 <snapshot|cleanup>"
}
check_value() {
echo ${1} | egrep '^[0-9]+$' &>/dev/null
echo $?
}
snapshot() {
echo 'Daily snapshot:'
rc=0
DATE=$(date -I)
DATASETS=$(zfs list -H -o name)
for DATASET in $DATASETS; do
ON=$(zfs get -H -o value snapshot:on $DATASET)
if [ "${ON}" != "yes" ]; then
continue
fi
KEEP_NUMBER_DAILY=$(zfs get -H -o value snapshot:daily $DATASET | sed 's/^-$//')
KEEP_NUMBER_WEEKLY=$(zfs get -H -o value snapshot:weekly $DATASET | sed 's/^-$//')
KEEP_NUMBER_MONTHLY=$(zfs get -H -o value snapshot:monthly $DATASET | sed 's/^-$//')
KEEP_NUMBER_YEARLY=$(zfs get -H -o value snapshot:yearly $DATASET | sed 's/^-$//')
if [ -z "${KEEP_NUMBER_DAILY}${KEEP_NUMBER_WEEKLY}${KEEP_NUMBER_MONTHLY}${KEEP_NUMBER_YEARLY}" ]; then
continue
fi
echo "------------------------"
date
echo "Creating snapshot ${DATASET}@${DATE}"
zfs snapshot ${DATASET}@${DATE}
echo "------------------------"
rcnow=$?
if [ "${rcnow}" != "0" ]; then
rc="${rcnow}"
fi
done
return $rc
}
cleanup() {
echo 'ZFS snapshot cleanup:'
rc=0
DATE=$(date -I)
DATASETS=$(zfs list -H -o name)
for DATASET in $DATASETS; do
ON=$(zfs get -H -o value snapshot:on $DATASET)
if [ "${ON}" != "yes" ]; then
continue
fi
KEEP_NUMBER_DAILY=$(zfs get -H -o value snapshot:daily $DATASET | sed 's/^-$/0/')
KEEP_NUMBER_WEEKLY=$(zfs get -H -o value snapshot:weekly $DATASET | sed 's/^-$/0/')
KEEP_NUMBER_MONTHLY=$(zfs get -H -o value snapshot:monthly $DATASET | sed 's/^-$/0/')
KEEP_NUMBER_YEARLY=$(zfs get -H -o value snapshot:yearly $DATASET | sed 's/^-$/0/')
EXISTING_SNAPSHOTS=$(zfs list -H -o name -t snapshot $DATASET)
KEEP_SNAPSHOTS=""
echo ${KEEP_NUMBER_DAILY} | egrep '^[0-9]+$' >/dev/null 2>&1
if [ "$?" != "0" ]; then
echo "Value ${KEEP_NUMBER_DAILY} for snapshot:daily on ${DATASET} is invalid" >&2
exit 1
fi
echo ${KEEP_NUMBER_WEEKLY} | egrep '^[0-9]+$' >/dev/null 2>&1
if [ "$?" != "0" ]; then
echo "Value ${KEEP_NUMBER_WEEKLY} for snapshot:weekly on ${DATASET} is invalid" >&2
exit 1
fi
echo ${KEEP_NUMBER_MONTHLY} | egrep '^[0-9]+$' >/dev/null 2>&1
if [ "$?" != "0" ]; then
echo "Value ${KEEP_NUMBER_MONTHLY} for snapshot:monthly on ${DATASET} is invalid" >&2
exit 1
fi
echo ${KEEP_NUMBER_YEARLY} | egrep '^[0-9]+$' >/dev/null 2>&1
if [ "$?" != "0" ]; then
echo "Value ${KEEP_NUMBER_YEARLY} for snapshot:yearly on ${DATASET} is invalid" >&2
exit 1
fi
echo "------------------------"
index=0
while [ "${index}" != "${KEEP_NUMBER_DAILY}" ]; do
CHECK_DATE=$(date -v-${index}d -I)
if [ -z "${KEEP_SNAPSHOTS}" ]; then
KEEP_SNAPSHOTS="${DATASET}@${CHECK_DATE}"
else
KEEP_SNAPSHOTS="${KEEP_SNAPSHOTS} ${DATASET}@${CHECK_DATE}"
fi
let index=$index+1 >/dev/null
done
index=0
while [ "${index}" != "${KEEP_NUMBER_WEEKLY}" ]; do
CHECK_DATE=$(date -v-${index}w -I)
if [ -z "${KEEP_SNAPSHOTS}" ]; then
KEEP_SNAPSHOTS="${DATASET}@${CHECK_DATE}"
else
KEEP_SNAPSHOTS="${KEEP_SNAPSHOTS} ${DATASET}@${CHECK_DATE}"
fi
let index=$index+1 >/dev/null
done
index=0
while [ "${index}" != "${KEEP_NUMBER_MONTHLY}" ]; do
CHECK_DATE=$(date -v-${index}m -I)
if [ -z "${KEEP_SNAPSHOTS}" ]; then
KEEP_SNAPSHOTS="${DATASET}@${CHECK_DATE}"
else
KEEP_SNAPSHOTS="${KEEP_SNAPSHOTS} ${DATASET}@${CHECK_DATE}"
fi
let index=$index+1 >/dev/null
done
index=0
while [ "${index}" != "${KEEP_NUMBER_YEARLY}" ]; do
CHECK_DATE=$(date -v-${index}y -I)
if [ -z "${KEEP_SNAPSHOTS}" ]; then
KEEP_SNAPSHOTS="${DATASET}@${CHECK_DATE}"
else
KEEP_SNAPSHOTS="${KEEP_SNAPSHOTS} ${DATASET}@${CHECK_DATE}"
fi
let index=$index+1 >/dev/null
done
echo "Dataset: $DATASET"
for snapshot in ${EXISTING_SNAPSHOTS}; do
echo "${KEEP_SNAPSHOTS}" | grep -o "${snapshot}" >/dev/null 2>&1
if [ "$?" != "0" ]; then
echo "Remove ${snapshot}"
zfs destroy ${snapshot}
fi
done
done
echo "------------------------"
return $rc
}
case $1 in
snapshot|cleanup|help)
date
$@
;;
*)
echo "Error!"
exit 1
;;
esac