mirror of https://github.com/Icinga/icinga2.git
155 lines
6.4 KiB
Markdown
155 lines
6.4 KiB
Markdown
|
|
## <a id="macros"></a> Macros
|
|
|
|
Macros may be used in command definitions to dynamically change how the command
|
|
is executed.
|
|
|
|
Here is an example of a command definition which uses user-defined macros:
|
|
|
|
object CheckCommand "my-ping" inherits "plugin-check-command" {
|
|
command = [
|
|
"$plugindir$/check_ping",
|
|
"-4",
|
|
"-H", "$address$",
|
|
"-w", "$wrta$,$wpl$%",
|
|
"-c", "$crta$,$cpl$%",
|
|
"-p", "$packets$",
|
|
"-t", "$timeout$"
|
|
],
|
|
|
|
macros = {
|
|
wrta = 100,
|
|
wpl = 5,
|
|
|
|
crta = 200,
|
|
cpl = 15,
|
|
|
|
packets = 5,
|
|
timeout = 0
|
|
}
|
|
}
|
|
|
|
> **Note**
|
|
>
|
|
> If you have previously used Icinga 1.x you may already be familiar with
|
|
> user and argument macros (e.g., `USER1` or `ARG1`). Unlike in Icinga 1.x macros
|
|
> may have arbitrary names and arguments are no longer specified in the
|
|
> `check_command` setting.
|
|
|
|
Macro names must be enclosed in two `$` signs, e.g. `$plugindir$`. When
|
|
executing commands Icinga 2 checks the following objects in this
|
|
order to look up macros:
|
|
|
|
1. User object (only for notifications)
|
|
2. Service object
|
|
3. Host object
|
|
4. Command object
|
|
5. Global macros in the IcingaMacros variable
|
|
|
|
This execution order allows you to define default values for macros in your
|
|
command objects. The `my-ping` command shown above uses this to set default
|
|
values for some of the latency thresholds and timeouts.
|
|
|
|
When using the `my-ping` command you can override all or some of the macros
|
|
in the service definition like this:
|
|
|
|
object Host "my-server1" {
|
|
services["ping"] = {
|
|
check_command = "my-ping",
|
|
|
|
macros["packets"] = 10 // Overrides the default value of 5 given in the command
|
|
},
|
|
|
|
macros["address"] = "10.0.0.1"
|
|
}
|
|
|
|
If a macro isn't defined anywhere an empty value is used and a warning is
|
|
emitted to the Icinga 2 log.
|
|
|
|
> **Note**
|
|
>
|
|
> Macros in capital letters (e.g. `HOSTNAME`) are reserved for use by Icinga 2
|
|
> and should not be overwritten by users.
|
|
|
|
By convention every host should have an `address` macro. Hosts
|
|
which have an IPv6 address should also have an `address6` macro.
|
|
|
|
The `plugindir` macro should be set to the path of your check plugins. The
|
|
`/etc/icinga2/conf.d/macros.conf` file is usually used to define global macros
|
|
including this one.
|
|
|
|
### Host Macros
|
|
|
|
The following host macros are available in all commands that are executed for
|
|
hosts or services:
|
|
|
|
Name | Description
|
|
-----------------------|--------------
|
|
HOSTNAME | The name of the host object.
|
|
HOSTDISPLAYNAME | The value of the `display_name` attribute.
|
|
HOSTALIAS | This is an alias for the `HOSTDISPLAYNAME` macro.
|
|
HOSTSTATE | The host's current state. Can be one of `UNREACHABLE`, `UP` and `DOWN`.
|
|
HOSTSTATEID | The host's current state. Can be one of `0` (up), `1` (down) and `2` (unreachable).
|
|
HOSTSTATETYPE | The host's current state type. Can be one of `SOFT` and `HARD`.
|
|
HOSTATTEMPT | The current check attempt number.
|
|
MAXHOSTATTEMPT | The maximum number of checks which are executed before changing to a hard state.
|
|
LASTHOSTSTATE | The host's previous state. Can be one of `UNREACHABLE`, `UP` and `DOWN`.
|
|
LASTHOSTSTATEID | The host's previous state. Can be one of `0` (up), `1` (down) and `2` (unreachable).
|
|
LASTHOSTSTATETYPE | The host's previous state type. Can be one of `SOFT` and `HARD`.
|
|
HOSTLATENCY | The host's check latency.
|
|
HOSTEXECUTIONTIME | The host's check execution time.
|
|
HOSTOUTPUT | The last check's output.
|
|
HOSTPERFDATA | The last check's performance data.
|
|
LASTHOSTCHECK | The timestamp when the last check was executed.
|
|
HOSTADDRESS | This is an alias for the `address` macro. If the `address` macro is not defined the host object's name is used instead.
|
|
HOSTADDRESS6 | This is an alias for the `address6` macro. If the `address` macro is not defined the host object's name is used instead.
|
|
|
|
### Service Macros
|
|
|
|
The following service macros are available in all commands that are executed for
|
|
services:
|
|
|
|
Name | Description
|
|
-----------------------|--------------
|
|
SERVICEDESC | The short name of the service object.
|
|
SERVICEDISPLAYNAME | The value of the `display_name` attribute.
|
|
SERVICECHECKCOMMAND | This is an alias for the `SERVICEDISPLAYNAME` macro.
|
|
SERVICESTATE | The service's current state. Can be one of `OK`, `WARNING`, `CRITICAL` and `UNKNOWN`.
|
|
SERVICESTATEID | The service's current state. Can be one of `0` (ok), `1` (warning), `2` (critical) and `3` (unknown).
|
|
SERVICESTATETYPE | The service's current state type. Can be one of `SOFT` and `HARD`.
|
|
SERVICEATTEMPT | The current check attempt number.
|
|
MAXSERVICEATTEMPT | The maximum number of checks which are executed before changing to a hard state.
|
|
LASTSERVICESTATE | The service's previous state. Can be one of `OK`, `WARNING`, `CRITICAL` and `UNKNOWN`.
|
|
LASTSERVICESTATEID | The service's previous state. Can be one of `0` (ok), `1` (warning), `2` (critical) and `3` (unknown).
|
|
LASTSERVICESTATETYPE | The service's previous state type. Can be one of `SOFT` and `HARD`.
|
|
LASTSERVICESTATECHANGE | The last state change's timestamp.
|
|
SERVICELATENCY | The service's check latency.
|
|
SERVICEEXECUTIONTIME | The service's check execution time.
|
|
SERVICEOUTPUT | The last check's output.
|
|
SERVICEPERFDATA | The last check's performance data.
|
|
LASTSERVICECHECK | The timestamp when the last check was executed.
|
|
|
|
### User Macros
|
|
|
|
The following service macros are available in all commands that are executed for
|
|
users:
|
|
|
|
Name | Description
|
|
-----------------------|--------------
|
|
USERNAME | The name of the user object.
|
|
USERDISPLAYNAME | The value of the display_name attribute.
|
|
USEREMAIL | This is an alias for the `email` macro.
|
|
USERPAGER | This is an alias for the `pager` macro.
|
|
|
|
### Global Macros
|
|
|
|
The following macros are available in all commands:
|
|
|
|
Name | Description
|
|
-----------------------|--------------
|
|
TIMET | Current UNIX timestamp.
|
|
LONGDATETIME | Current date and time including timezone information.
|
|
SHORTDATETIME | Current date and time.
|
|
DATE | Current date.
|
|
TIME | Current time including timezone information.
|