mirror of https://github.com/Icinga/icinga2.git
207 lines
7.3 KiB
Markdown
207 lines
7.3 KiB
Markdown
## <a id="setting-up-icinga2"></a> Setting up Icinga 2
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First of all you will have to install Icinga 2. The preferred way of doing this
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is to use the official Debian or RPM package repositories depending on which
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operating system and distribution you are running.
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Distribution | Repository URL
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------------------------|---------------------------
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Debian | http://packages.icinga.org/debian/
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Ubuntu | http://packages.icinga.org/ubuntu/
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RHEL/CentOS | http://packages.icinga.org/epel/
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OpenSUSE | http://packages.icinga.org/openSUSE/
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SLES | http://packages.icinga.org/SUSE/
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Packages for distributions other than the ones listed above may also be
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available. Please check http://packages.icinga.org/ to see if packages
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are available for your favourite distribution.
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The packages for RHEL/CentOS 5 depend on other packages which are distributed
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as part of the [EPEL repository](http://fedoraproject.org/wiki/EPEL). Please
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make sure to enable this repository.
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You can install Icinga 2 by using your distribution's package manager
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to install the `icinga2` package.
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On RHEL/CentOS and SLES you will need to use `chkconfig` to enable the
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`icinga2` service. You can manually start Icinga 2 using `/etc/init.d/icinga2 start`.
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Some parts of Icinga 2's functionality are available as separate packages:
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Name | Description
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------------------------|--------------------------------
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icinga2-ido-mysql | IDO provider module for MySQL
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icinga2-ido-pgsql | IDO provider module for PostgreSQL
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In case you're running a distribution for which Icinga 2 packages are
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not yet available you will have to use the release tarball which you
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can download from the [Icinga website](https://www.icinga.org/). The
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release tarballs contain an `INSTALL` file with further instructions.
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### <a id="installation-paths"></a> Installation Paths
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By default Icinga 2 uses the following files and directories:
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Path | Description
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------------------------------------|------------------------------------
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/etc/icinga2 | Contains Icinga 2 configuration files.
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/etc/init.d/icinga2 | The Icinga 2 init script.
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/usr/bin/icinga2-* | Migration and certificate build scripts.
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/usr/sbin/icinga2* | The Icinga 2 binary and feature enable/disable scripts.
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/usr/share/doc/icinga2 | Documentation files that come with Icinga 2.
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/usr/share/icinga2/itl | The Icinga Template Library.
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/var/run/icinga2 | PID file.
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/var/run/icinga2/cmd | Command pipe and Livestatus socket.
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/var/cache/icinga2 | status.dat/objects.cache.
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/var/spool/icinga2 | Used for performance data spool files.
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/var/lib/icinga2 | Icinga 2 state file, cluster feature replay log and configuration files.
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/var/log/icinga2 | Log file location and compat/ directory for the CompatLogger feature.
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### <a id="icinga2-conf"></a> icinga2.conf
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An example configuration file is installed for you in `/etc/icinga2/icinga2.conf`.
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Here's a brief description of the example configuration:
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/**
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* Icinga 2 configuration file
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* - this is where you define settings for the Icinga application including
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* which hosts/services to check.
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*
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* For an overview of all available configuration options please refer
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* to the documentation that is distributed as part of Icinga 2.
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*/
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Icinga 2 supports [C/C++-style comments](#comments).
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/**
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* The constants.conf defines global constants.
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*/
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include "constants.conf"
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The `include` directive can be used to include other files.
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/**
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* The Icinga Template Library (ITL) provides a number of useful templates
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* and command definitions.
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*/
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include <itl/itl.conf>
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/**
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* The features-available directory contains a number of configuration
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* files for features which can be enabled and disabled using the
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* icinga2-enable-feature / icinga2-disable-feature tools. These two tools work by creating
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* and removing symbolic links in the features-enabled directory.
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*/
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include "features-enabled/*.conf"
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This `include` directive takes care of including the configuration files for all
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the features which have been enabled with `icinga2-enable-feature`. See
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[Enabling/Disabling Features](#features) for more details.
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/**
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* Although in theory you could define all your objects in this file
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* the preferred way is to create separate directories and files in the conf.d
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* directory. Each of these files must have the file extension ".conf".
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*/
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include_recursive "conf.d"
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You can put your own configuration files in the `conf.d` directory. This
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directive makes sure that all of your own configuration files are included.
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### <a id="constants-conf"></a> constants.conf
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The `constants.conf` configuration file can be used to define global constants:
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/**
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* This file defines global constants which can be used in
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* the other configuration files. At a minimum the
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* PluginDir constant should be defined.
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*/
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const PluginDir = "/usr/lib/nagios/plugins"
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### <a id="localhost-conf"></a> localhost.conf
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The `conf.d/localhost.conf` file contains our first host definition:
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/**
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* A host definition. You can create your own configuration files
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* in the conf.d directory (e.g. one per host). By default all *.conf
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* files in this directory are included.
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*/
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object Host "localhost" {
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import "linux-server"
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address = "127.0.0.1"
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address6 = "::1"
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}
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This defines the host `localhost`. The `import` keyword is used to import
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the `linux-server` template which takes care of setting up the host check
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as well as adding the host to the `linux-servers` host group.
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The `vars` attribute can be used to define custom attributes which are available
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for check and notification commands. Most of the templates in the Icinga
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Template Library require an `address` custom attribute.
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object Service "icinga" {
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import "generic-service"
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host_name = "localhost"
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check_command = "icinga"
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}
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object Service "http" {
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import "generic-service"
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host_name = "localhost"
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check_command = "http_ip"
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}
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object Service "ssh" {
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import "generic-service"
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host_name = "localhost"
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check_command = "ssh"
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}
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object Service "load" {
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import "generic-service"
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host_name = "localhost"
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check_command = "load"
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}
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object ScheduledDowntime "backup-downtime" {
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import "backup-downtime"
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host_name = "localhost"
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service_name = "load"
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}
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object Service "processes" {
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import "generic-service"
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host_name = "localhost"
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check_command = "processes"
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}
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object Service "users" {
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import "generic-service"
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host_name = "localhost"
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check_command = "users"
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}
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object Service "disk" {
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import "generic-service"
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host_name = "localhost"
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check_command = "disk"
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}
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The command objects `icinga`, `http_ip`, `ssh`, `load`, `processes`, `users`
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and `disk` are all provided by the Icinga Template Library (ITL) which
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we enabled earlier by including the `itl/itl.conf` configuration file.
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