-
Notifications
You must be signed in to change notification settings - Fork 185
/
lvm-prom-collector
executable file
·154 lines (136 loc) · 4.8 KB
/
lvm-prom-collector
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
#!/usr/bin/env bash
#
# Expose various types of information about lvm2
#
# Usage: lvm-prom-collector <options>
#
# Options:
#
# -g for used and free space of logical volume groups
# -p for used and free space of physical volumes.
# -s for the percentage usage of the snapshots
# -t for the percentage usage of the thin pools
#
# * * * * * root lvm-prom-collector -g | sponge /var/lib/prometheus/node-exporter/lvm.prom
#
# This will expose every minute information about the logical volume groups
#
# Author: Badreddin Aboubakr <[email protected]>
set -eu
# Ensure predictable numeric / date formats, etc.
export LC_ALL=C
display_usage() {
echo "This script must be run with super-user privileges."
echo "Usage: lvm-prom-collector options"
echo "Options:"
echo "Expose various types of information about lvm2"
echo "Use -g for used and free space of logical volume groups."
echo "Use -p for used and free space of physical volumes."
echo "Use -s for the percentage usage of snapshots."
echo "Use -t for the percentage usage of thin pools."
}
if [ "$(id -u)" != "0" ]; then
1>&2 echo "This script must be run with super-user privileges."
exit 1
fi
if [ $# -eq 0 ]; then
display_usage
exit 1
fi
thin_pools=false
snapshots=false
physical=false
groups=false
while getopts "ahtpsg" opt; do
case $opt in
a)
thin_pools=true
snapshots=true
physical=true
groups=true
;;
p)
physical=true
;;
s)
snapshots=true
;;
g)
groups=true
;;
t)
thin_pools=true
;;
h)
display_usage
exit 0
;;
\?)
display_usage
exit 1
;;
esac
done
if [ "$physical" = true ]; then
echo "# HELP node_physical_volume_size Physical volume size in bytes"
echo "# TYPE node_physical_volume_size gauge"
echo "# HELP node_physical_volume_free Physical volume free space in bytes"
echo "# TYPE node_physical_volume_free gauge"
pvs_output=$(pvs --noheadings --units b --nosuffix --nameprefixes --unquoted --options pv_name,pv_fmt,pv_free,pv_size,pv_uuid 2>/dev/null)
echo "$pvs_output" | while IFS= read -r line; do
# Skip if the line is empty
[ -z "$line" ] && continue
# shellcheck disable=SC2086
declare $line
echo "node_physical_volume_size{name=\"$LVM2_PV_NAME\", uuid=\"$LVM2_PV_UUID\", format=\"$LVM2_PV_FMT\"} $LVM2_PV_SIZE"
echo "node_physical_volume_free{name=\"$LVM2_PV_NAME\", uuid=\"$LVM2_PV_UUID\", format=\"$LVM2_PV_FMT\"} $LVM2_PV_FREE"
done
fi
if [ "$snapshots" = true ]; then
echo "# HELP node_lvm_snapshots_allocated percentage of allocated data to a snapshot"
echo "# TYPE node_lvm_snapshots_allocated gauge"
lvs_output=$(lvs --noheadings --select 'lv_attr=~[^s.*]' --units b --nosuffix --unquoted --nameprefixes --options lv_uuid,vg_name,data_percent 2>/dev/null)
echo "$lvs_output" | while IFS= read -r line; do
# Skip if the line is empty
[ -z "$line" ] && continue
# shellcheck disable=SC2086
declare $line
echo "node_lvm_snapshots_allocated{uuid=\"$LVM2_LV_UUID\", vgroup=\"$LVM2_VG_NAME\"} $LVM2_DATA_PERCENT"
done
fi
if [ "$thin_pools" = true ]; then
lvs_output=$(lvs --noheadings --select 'lv_attr=~[^t.*]' --units b --nosuffix --unquoted --nameprefixes --options lv_uuid,vg_name,data_percent,metadata_percent 2>/dev/null)
echo "# HELP node_lvm_thin_pools_allocated percentage of allocated thin pool data"
echo "# TYPE node_lvm_thin_pools_allocated gauge"
echo "$lvs_output" | while IFS= read -r line; do
# Skip if the line is empty
[ -z "$line" ] && continue
# shellcheck disable=SC2086
declare $line
echo "node_lvm_thin_pools_allocated{uuid=\"$LVM2_LV_UUID\", vgroup=\"$LVM2_VG_NAME\"} $LVM2_DATA_PERCENT"
done
echo "# HELP node_lvm_thin_pools_metadata percentage of allocated thin pool metadata"
echo "# TYPE node_lvm_thin_pools_metadata gauge"
echo "$lvs_output" | while IFS= read -r line; do
# Skip if the line is empty
[ -z "$line" ] && continue
# shellcheck disable=SC2086
declare $line
echo "node_lvm_thin_pools_metadata{uuid=\"$LVM2_LV_UUID\", vgroup=\"$LVM2_VG_NAME\"} $LVM2_METADATA_PERCENT"
done
fi
if [ "$groups" = true ]; then
echo "# HELP node_volume_group_size Volume group size in bytes"
echo "# TYPE node_volume_group_size gauge"
echo "# HELP node_volume_group_free volume group free space in bytes"
echo "# TYPE node_volume_group_free gauge"
vgs_output=$(vgs --noheadings --units b --nosuffix --unquoted --nameprefixes --options vg_name,vg_free,vg_size 2>/dev/null)
echo "$vgs_output" | while IFS= read -r line; do
# Skip if the line is empty
[ -z "$line" ] && continue
# shellcheck disable=SC2086
declare $line
echo "node_volume_group_size{name=\"$LVM2_VG_NAME\"} $LVM2_VG_SIZE"
echo "node_volume_group_free{name=\"$LVM2_VG_NAME\"} $LVM2_VG_FREE"
done
fi