service (linux)

check_service

Checks the state of one or multiple linux (systemctl) services.

There is a specific check_service for windows as well.

• Examples
• Argument Defaults
• Attributes

Implementation

Examples

Default Check

Checking all services except some excluded ones:

check_service exclude=bluetooth
OK - All 74 service(s) are ok.

Or check a specific service and get some metrics:

check_service service=docker ok-syntax='${top-syntax}' top-syntax='%(status) - %(list)' detail-syntax='%(name) %(state) - memory: %(rss:h)B - age: %(age:duration)'
OK - docker running - memory: 805.2MB - created: Fri 2023-11-17 20:34:01 CET |'docker'=4 'docker rss'=805200000B

Check memory usage of specific service:

check_service service=docker warn='rss > 1GB' warn='rss > 2GB'
OK - All 1 service(s) are ok. |'docker'=4 'docker rss'=59691008B;;;0 'docker vms'=3166244864B;;;0 'docker cpu'=0.7%;;;0 'docker tasks'=20;;;0

Example using NRPE and Naemon

Naemon Config

define command{
    command_name         check_nrpe
    command_line         $USER1$/check_nrpe -H $HOSTADDRESS$ -n -c $ARG1$ -a $ARG2$
}

define service {
    host_name            testhost
    service_description  check_service
    use                  generic-service
    check_command        check_nrpe!check_service!service=docker
}

Argument Defaults

Check Specific Arguments

Attributes

Filter Keywords

these can be used in filters and thresholds (along with the default attributes):