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add monitoring for freifunk nodes
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Franzi 2021-01-09 11:03:23 +01:00
parent 19dd29e847
commit 8e54d6eb23
Signed by: kunsi
GPG key ID: 12E3D2136B818350
6 changed files with 163 additions and 0 deletions
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78
bundles/icinga2/files/check_freifunk_node Normal file
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@ -0,0 +1,78 @@
#!/usr/bin/env python3
from requests import get
from sys import argv, exit
meshviewer_url = argv[1]
node_id = argv[2]
node = None
try:
for n in get(meshviewer_url).json()['nodes']:
if node_id == n['node_id']:
node = n
break
if not node:
print('CRITICAL: Node {} not found in {}'.format(
node_id,
meshviewer_url,
))
exit(2)
if not node['is_online']:
print('CRITICAL: Node "{}" is offline!'.format(
node['hostname'],
))
exit(2)
crit = set()
warn = set()
if node['loadavg'] > 1:
warn.add('has high load: {}'.format(
node['loadavg'],
))
if node['rootfs_usage'] > 0.9:
crit.add('rootfs usage is {}%'.format(
int(node['rootfs_usage']*100)
))
elif node['rootfs_usage'] > 0.8:
warn.add('rootfs usage is {}%'.format(
int(node['rootfs_usage']*100)
))
if node['memory_usage'] > 0.9:
crit.add('ram usage is {}%'.format(
int(node['memory_usage']*100)
))
elif node['memory_usage'] > 0.8:
warn.add('ram usage is {}%'.format(
int(node['memory_usage']*100)
))
for line in sorted(crit):
print('CRITICAL: Node "{}" {}'.format(
node['hostname'],
line,
))
for line in sorted(warn):
print('WARNING: Node "{}" {}'.format(
node['hostname'],
line,
))
if crit:
exit(2)
elif warn:
exit(1)
else:
print('Node "{}" reports no errors'.format(
node['hostname'],
))
exit(0)
except Exception as e:
print(repr(e))
exit(3)

7
bundles/icinga2/files/icinga2/check_commands.conf
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@ -25,6 +25,13 @@ object CheckCommand "dummy_hostalive" {
command = [ "true" ]
}
object CheckCommand "check_freifunk_node" {
import "plugin-check-command"
import "ipv4-or-ipv6"
command = [ "/usr/local/share/icinga/plugins/check_freifunk_node", "$url$", "$id$" ]
}
object CheckCommand "check_http_wget" {
import "plugin-check-command"
import "ipv4-or-ipv6"

3
bundles/icinga2/items.py
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@ -86,6 +86,9 @@ files = {
'mode': '0755',
'content_type': 'mako',
},
'/usr/local/share/icinga/plugins/check_freifunk_node': {
'mode': '0755',
},
'/etc/sshmon.priv': {
'content': repo.vault.decrypt_file(join('sshmon', 'sshmon.key.vault')),
'owner': 'nagios',

25
nodes/home/winkeeinhorn-1.py Normal file
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@ -0,0 +1,25 @@
nodes['home.winkeeinhorn-1'] = {
'dummy': True,
'metadata': {
'interfaces': {
'default': {
'ips': {
'172.19.138.11',
},
'dhcp': True,
'mac': 'f4:06:8d:df:05:60',
},
},
'icinga2_api': {
'freifunk': {
'services': {
'NODE HEALTH': {
'check_command': 'check_freifunk_node',
'vars.url': 'https://map.freifunk-mwu.de/data/meshviewer.json',
'vars.id': 'f4068ddf055f',
},
},
},
},
},
}

25
nodes/home/winkeeinhorn-2.py Normal file
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@ -0,0 +1,25 @@
nodes['home.winkeeinhorn-2'] = {
'dummy': True,
'metadata': {
'interfaces': {
'default': {
'ips': {
'172.19.138.12',
},
'dhcp': True,
'mac': 'f4:06:8d:df:03:38',
},
},
'icinga2_api': {
'freifunk': {
'services': {
'NODE HEALTH': {
'check_command': 'check_freifunk_node',
'vars.url': 'https://map.freifunk-mwu.de/data/meshviewer.json',
'vars.id': 'f4068ddf0337',
},
},
},
},
},
}

25
nodes/home/winkeeinhorn-vm.py Normal file
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@ -0,0 +1,25 @@
nodes['home.winkeeinhorn-vm'] = {
'dummy': True,
'metadata': {
'interfaces': {
'default': {
'ips': {
'172.19.138.10',
},
'dhcp': True,
'mac': '42:86:56:de:00:90',
},
},
'icinga2_api': {
'freifunk': {
'services': {
'NODE HEALTH': {
'check_command': 'check_freifunk_node',
'vars.url': 'https://map.freifunk-mwu.de/data/meshviewer.json',
'vars.id': '525400b04e4d',
},
},
},
},
},
}