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Sensu : Add Check Plugins#2
2017/11/07 |
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Add general Check Plugins like memory check, disk check and others except CPU check (refer to here).
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| [1] | Add memory check plugin. |
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[root@dlp ~]#
sensu-install -p memory-checks
[root@dlp ~]#
vi /etc/sensu/conf.d/check-memory-percent.json # set Warning on 80% of Memory Usage , set Critical on 90%
{
"checks": {
"memory_check": {
"command": "check-memory-percent.rb -w 80 -c 90",
"subscribers": [ "development" ],
"interval": 60
}
}
}
[root@dlp ~]#
vi /etc/sensu/conf.d/metrics-memory.json # memory metrics collection
{
"checks": {
"metrics_memory-usage": {
"type": "metric",
"command": "metrics-memory.rb --scheme :::name:::.memory_usage",
"interval": 60,
"output_format": "graphite_plaintext",
"subscribers": [ "development" ],
"handlers": [ "graphite" ]
}
}
}
systemctl restart sensu-server sensu-api |
| [2] | Add disk check plugin. |
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[root@dlp ~]#
sensu-install -p disk-checks
[root@dlp ~]#
vi /etc/sensu/conf.d/check-disk-usage.json # set Warning on 80% of Disk Usage, set Critical on 90%
{
"checks": {
"disk_check": {
"command": "check-disk-usage.rb -w 80 -c 90",
"subscribers": [ "development" ],
"interval": 60
}
}
}
[root@dlp ~]#
vi /etc/sensu/conf.d/metrics-disk-usage.json # disk metrics collection
{
"checks": {
"metrics_disk-usage": {
"type": "metric",
"command": "metrics-disk-usage.rb -l --scheme :::name:::.disk_usage",
"interval": 60,
"output_format": "graphite_plaintext",
"subscribers": [ "development" ],
"handlers": [ "graphite" ]
}
}
}
systemctl restart sensu-server sensu-api |
| [3] | Add network check plugin. |
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[root@dlp ~]#
sensu-install -p network-checks
[root@dlp ~]#
vi /etc/sensu/conf.d/check-ports.json # check 22 port (timeout is 10 sec)
{
"checks": {
"port_check": {
"command": "check-ports.rb -p 22 -t 10",
"subscribers": [ "development" ],
"interval": 60
}
}
}
[root@dlp ~]#
vi /etc/sensu/conf.d/metrics-net.json # network metrics collection
{
"checks": {
"metrics_net-usage": {
"type": "metric",
"command": "metrics-net.rb --scheme :::name:::.network",
"interval": 60,
"output_format": "graphite_plaintext",
"subscribers": [ "development" ],
"handlers": [ "graphite" ]
}
}
}
systemctl restart sensu-server sensu-api |
| [4] | Add process check plugin. |
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[root@dlp ~]#
sensu-install -p process-checks
[root@dlp ~]#
vi /etc/sensu/conf.d/check-process.json # set Warning on 400 proccesses, set Critical on 500
{
"checks": {
"processes_check": {
"command": "check-process.rb -w 400 -c 500",
"subscribers": [ "development" ],
"interval": 60
}
}
}
[root@dlp ~]#
vi /etc/sensu/conf.d/metrics-processes-threads-count.json # process metrics collection
{
"checks": {
"metrics_processes-count": {
"type": "metric",
"command": "metrics-processes-threads-count.rb --scheme :::name:::.processes",
"interval": 60,
"output_format": "graphite_plaintext",
"subscribers": [ "development" ],
"handlers": [ "graphite" ]
}
}
}
systemctl restart sensu-server sensu-api |
| [5] | Add NTP check plugin. (follows are the case on chrony, but for ntpd, install [sensu-install -p ntp]) |
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[root@dlp ~]#
sensu-install -p chrony
[root@dlp ~]#
vi /etc/sensu/conf.d/check-chrony.json # set Warning on offset 2 sec, set Critical on 3 sec
{
"checks": {
"chrony_check": {
"command": "check-chrony.rb --warn-offset 2000 --crit-offset 3000",
"subscribers": [ "development" ],
"interval": 600
}
}
}
[root@dlp ~]#
vi /etc/sensu/conf.d/metrics-chrony.json # Chrony metrics collection
{
"checks": {
"metrics_chrony": {
"type": "metric",
"command": "metrics-chrony.rb --scheme :::name:::.chrony",
"interval": 600,
"output_format": "graphite_plaintext",
"subscribers": [ "development" ],
"handlers": [ "graphite" ]
}
}
}
systemctl restart sensu-server sensu-api |
| [6] | Access to Uchiwa Dashboard and verify new metric collection checks are shown normally. |
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| [7] | Access to Graphite Web to see metrics with Graphs. |
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| [8] | If set Grafana web, it's also possible to see Graphs. |
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