Michael Friedrich
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README.md
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README.md
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@ -1,5 +1,6 @@
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#puppet-icinga2
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- - -
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# puppet-icinga2
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## About
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This module installs and configures the [Icinga 2 monitoring system](https://www.icinga.org/icinga2/). It can also install and configure [NRPE](http://exchange.nagios.org/directory/Addons/Monitoring-Agents/NRPE--2D-Nagios-Remote-Plugin-Executor/details) on client systems that are being monitored by an Icinga 2 server.
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@ -9,216 +10,17 @@ Currently, this module does not install or configure any web UIs for Icinga 2. T
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While NRPE is required for Icinga 2 to check non-network-reachble things on client machines (CPU, load average, etc.), this module itself doesn't have any dependencies between the server component (the `icinga2::server` class) and client component (the `icinga2::nrpe` class). Either one can be used independently of the other.
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##Requirements
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## Installation
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For Ubuntu systems, this module requires the [Puppet Labs apt module](https://github.com/puppetlabs/puppetlabs-apt).
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Check [doc/installation.md](doc/installation.md) for a detailed introduction.
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On EL-based systems (CentOS, Red Hat Enterprise Linux, Fedora, etc.), the [EPEL package repository](https://fedoraproject.org/wiki/EPEL) is required.
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###Server requirements
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## Documentation
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Icinga 2 requires either a [MySQL](http://www.mysql.com/) or a [Postgres](http://www.postgresql.org/) database.
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The documentation is located in the doc/ directory. The latest documentation
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is also available on https://docs.icinga.org
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Currently, this module does not set up any databases. You'll have to create one before installing Icinga 2 via the module.
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## Support
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If you would like to set up your own database, either of the Puppet Labs [MySQL](https://github.com/puppetlabs/puppetlabs-mysql) or [Postgres](https://github.com/puppetlabs/puppetlabs-postgresql) modules can be used.
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Database connection parameters can be specified by the `db_host`, `db_port`, `db_name`, `db_user` and `db_password` parameters.
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The example below shows the [Puppet Labs Postgres module](https://github.com/puppetlabs/puppetlabs-postgresql) being used to install Postgres and create a database and database user for Icinga 2:
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<pre>
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class { 'postgresql::server': }
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postgresql::server::db { 'icinga2_data':
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user => 'icinga2',
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password => postgresql_password('icinga2', 'password'),
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}
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</pre>
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For production use, you'll probably want to get the database password via a [Hiera lookup](http://docs.puppetlabs.com/hiera/1/puppet.html) so the password isn't sitting in your site manifests in plain text.
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To configure Icinga with the password you set up for the Postgres Icinga user, use the `server_db_password` parameter (shown here with a Hiera lookup):
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<pre>
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class { 'icinga2::server':
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server_db_password => hiera('icinga_db_password_key_here')
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}
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</pre>
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##Usage
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###Server usage
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To install Icinga 2 with a Postgres database, first set up the database.
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Once the database is set up, use the `icinga2::server` class with the database connection parameters to specify
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<pre>
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#Install Icinga 2:
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class { 'icinga2::server':
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server_db_type => 'pgsql',
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db_host => 'localhost'
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db_port => '5432'
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db_name => 'icinga2_data'
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db_user => 'icinga2'
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db_password => 'password',
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}
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</pre>
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When the `server_db_type` parameter is set, the right IDO database connection packages are automatically installed and the schema is loaded.
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**Note:** For production use, you'll probably want to get the database password via a [Hiera lookup](http://docs.puppetlabs.com/hiera/1/puppet.html) so the password isn't sitting in your site manifests in plain text:
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<pre>
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#Install Icinga 2:
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class { 'icinga2::server':
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server_db_type => 'pgsql',
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db_host => 'localhost'
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db_port => '5432'
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db_name => 'icinga2_data'
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db_user => 'icinga2'
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db_password => hiera('icinga_db_password_key_here'),
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}
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</pre>
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**Note:** If you will be installing NRPE or the Nagios plugins packages with the `icinga2::nrpe` class on a node that also has the `icinga2::server` class applied, be sure to set the `$server_install_nagios_plugins` parameter in your call to `icinga2::server` to `false`:
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<pre>
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#Install Icinga 2:
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class { 'icinga2::server':
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...
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server_install_nagios_plugins => false,
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...
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}
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</pre>
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This will stop the `icinga2::server` class from trying to install the plugins pacakges, since the `icinga2::nrpe` class will already be installing them and will prevent a resulting duplicate resource error.
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###Client usage
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To install NRPE and allow the local machine and Icinga 2 servers (or Icinga 1 or plain old Nagios servers) with various IP addresess to connect:
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<pre>
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class { 'icinga2::nrpe':
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nrpe_allowed_hosts => ['10.0.1.79', '10.0.1.80', '10.0.1.85', '127.0.0.1'],
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}
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</pre>
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**Note:** If you would like to install NRPE on a node that also has the `icinga2::server` class applied, be sure to set the `$server_install_nagios_plugins` parameter in your call to `icinga2::server` to `false`:
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<pre>
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#Install Icinga 2:
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class { 'icinga2::server':
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server_db_type => 'pgsql',
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server_install_nagios_plugins => false,
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}
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</pre>
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This will stop the `icinga2::server` class from trying to install the plugins pacakges, since the `icinga2::nrpe` class will already be installing them and will prevent a resulting duplicate resource error.
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###Object type usage
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This module includes several defined types that can be used to automatically generate Icinga 2 format object definitions. They function in a similar way to [the built-in Nagios types that are included in Puppet](http://docs.puppetlabs.com/guides/exported_resources.html#exported-resources-with-nagios).
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####Exported resources
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Like the built-in Nagios types, they can be exported to PuppetDB as virtual resources and collected on your Icinga 2 server.
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Nodes that are being monitored can have the `@@` virtual resources applied to them:
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<pre>
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@@icinga2::object::host { $::fqdn:
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display_name => $::fqdn,
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ipv4_address => $::ipaddress_eth0,
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groups => ['linux_servers', 'mysql_servers'],
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vars => {
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os => 'linux',
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virtual_machine => 'true',
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distro => $::operatingsystem,
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},
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target_dir => '/etc/icinga2/objects/hosts',
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target_file_name => "${fqdn}.conf"
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}
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</pre>
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Then, on your Icinga 2 server, you can collect the exported virtual resources (notice the camel casing in the class name):
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<pre>
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#Collect all @@icinga2::object::host resources from PuppetDB that were exported by other machines:
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Icinga2::Object::Host <<| |>> { }
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</pre>
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Unlike the built-in Nagios types, the file owner, group and mode of the automatically generated files can be controlled via the `target_file_owner`, `target_file_group` and `target_file_mode` parameters:
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<pre>
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@@icinga2::object::host { $::fqdn:
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display_name => $::fqdn,
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ipv4_address => $::ipaddress_eth0,
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groups => ['linux_servers', 'mysql_servers'],
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vars => {
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os => 'linux',
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virtual_machine => 'true',
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distro => $::operatingsystem,
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},
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target_dir => '/etc/icinga2/objects/hosts',
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target_file_name => "${fqdn}.conf"
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target_file_owner => 'root',
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target_file_group => 'root',
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target_file_mode => '644'
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}
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</pre>
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####`undef` and default object values
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Most of the object parameters *in the Puppet module* are set to **undef**.
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This means that they will not be added to the rendered object definition files.
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**However**, this doesn't mean that the values are undefined in Icinga 2. Icinga 2 itself has built-in default values for many object parameters and falls back to them if one isn't present in an object definition. See the docs for individual object types in [Configuring Icinga 2](http://docs.icinga.org/icinga2/latest/doc/module/icinga2/toc#!/icinga2/latest/doc/module/icinga2/chapter/configuring-icinga2) for more info about which object parameters have what default values.
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####`icinga2::object::host`
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**Note:** The `ipv6_address` parameter is set to **undef** by default. This is because `facter` can return either IPv4 or IPv6 addresses for the `ipaddress_ethX` facts. The default value for the `ipv6_address` parameter is set to **undef** and not `ipaddress_eth0` so that an IPv4 address isn't unintentionally set as the value for `address6` in the rendered host object definition.
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If you would like to use an IPv6 address, make sure to set the `ipv6_address` parameter to the `ipaddress_ethX` fact that will give you the right IPv6 address for the machine:
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<pre>
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@@icinga2::object::host { $::fqdn:
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display_name => $::fqdn,
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ipv6_address => $::ipaddress_eth1,
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....
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}
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</pre>
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####`icinga2::object::apply_service_to_host`
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The `apply_service_to_host` defined type can create `apply` objects to apply services to hosts:
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<pre>
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#Create an apply that checks the number of zombie processes:
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icinga2::object::apply_service_to_host { 'check_zombie_procs':
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display_name => 'Zombie procs',
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check_command => 'nrpe',
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vars => {
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nrpe_command => 'check_zombie_procs',
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},
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assign_where => '"linux_servers" in host.groups',
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ignore_where => 'host.name == "localhost"',
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target_dir => '/etc/icinga2/objects/applys'
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}
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</pre>
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This defined type has the same available parameters that the `icinga2::object::service` defined type does.
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The `assign_where` and `ignore_where` parameter values are meant to be provided as strings. Since Icinga 2 requires that string literals be double-quoted, the whole string in your Puppet site manifests will have to be single-quoted (leaving the double quotes intact inside):
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<pre>
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assign_where => '"linux_servers" in host.groups',
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</pre>
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If you would like to use Puppet or Facter variables in an `assign_where` or `ignore_where` parameter's value, you'll first need to double-quote the whole value for [Puppet's variable interpolation](http://docs.puppetlabs.com/puppet/latest/reference/lang_datatypes.html#double-quoted-strings) to work. Then, you'll need to escape the double quotes that surround the Icinga 2 string literals inside:
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<pre>
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assign_where => "\"linux_servers\" in host.${facter_variable}"",
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</pre>
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Check the project website at http://www.icinga.org for status updates and
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https://support.icinga.org if you want to contact us.
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215
doc/installation.md
Normal file
215
doc/installation.md
Normal file
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@ -0,0 +1,215 @@
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# puppet-icinga2 Installation
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## Requirements
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For Ubuntu systems, this module requires the [Puppet Labs apt module](https://github.com/puppetlabs/puppetlabs-apt).
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On EL-based systems (CentOS, Red Hat Enterprise Linux, Fedora, etc.), the [EPEL package repository](https://fedoraproject.org/wiki/EPEL) is required.
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### Server requirements
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Icinga 2 requires either a [MySQL](http://www.mysql.com/) or a [Postgres](http://www.postgresql.org/) database.
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Currently, this module does not set up any databases. You'll have to create one before installing Icinga 2 via the module.
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If you would like to set up your own database, either of the Puppet Labs [MySQL](https://github.com/puppetlabs/puppetlabs-mysql) or [Postgres](https://github.com/puppetlabs/puppetlabs-postgresql) modules can be used.
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Database connection parameters can be specified by the `db_host`, `db_port`, `db_name`, `db_user` and `db_password` parameters.
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The example below shows the [Puppet Labs Postgres module](https://github.com/puppetlabs/puppetlabs-postgresql) being used to install Postgres and create a database and database user for Icinga 2:
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<pre>
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class { 'postgresql::server': }
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postgresql::server::db { 'icinga2_data':
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user => 'icinga2',
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password => postgresql_password('icinga2', 'password'),
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}
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</pre>
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For production use, you'll probably want to get the database password via a [Hiera lookup](http://docs.puppetlabs.com/hiera/1/puppet.html) so the password isn't sitting in your site manifests in plain text.
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To configure Icinga with the password you set up for the Postgres Icinga user, use the `server_db_password` parameter (shown here with a Hiera lookup):
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<pre>
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class { 'icinga2::server':
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server_db_password => hiera('icinga_db_password_key_here')
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}
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</pre>
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##Usage
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###Server usage
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To install Icinga 2 with a Postgres database, first set up the database.
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Once the database is set up, use the `icinga2::server` class with the database connection parameters to specify
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<pre>
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#Install Icinga 2:
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class { 'icinga2::server':
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server_db_type => 'pgsql',
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db_host => 'localhost'
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db_port => '5432'
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db_name => 'icinga2_data'
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db_user => 'icinga2'
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db_password => 'password',
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}
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</pre>
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When the `server_db_type` parameter is set, the right IDO database connection packages are automatically installed and the schema is loaded.
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**Note:** For production use, you'll probably want to get the database password via a [Hiera lookup](http://docs.puppetlabs.com/hiera/1/puppet.html) so the password isn't sitting in your site manifests in plain text:
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<pre>
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#Install Icinga 2:
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class { 'icinga2::server':
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server_db_type => 'pgsql',
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db_host => 'localhost'
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db_port => '5432'
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db_name => 'icinga2_data'
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db_user => 'icinga2'
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db_password => hiera('icinga_db_password_key_here'),
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}
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</pre>
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**Note:** If you will be installing NRPE or the Nagios plugins packages with the `icinga2::nrpe` class on a node that also has the `icinga2::server` class applied, be sure to set the `$server_install_nagios_plugins` parameter in your call to `icinga2::server` to `false`:
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<pre>
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#Install Icinga 2:
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class { 'icinga2::server':
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...
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server_install_nagios_plugins => false,
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...
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}
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</pre>
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This will stop the `icinga2::server` class from trying to install the plugins pacakges, since the `icinga2::nrpe` class will already be installing them and will prevent a resulting duplicate resource error.
|
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|
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###Client usage
|
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|
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To install NRPE and allow the local machine and Icinga 2 servers (or Icinga 1 or plain old Nagios servers) with various IP addresess to connect:
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<pre>
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class { 'icinga2::nrpe':
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nrpe_allowed_hosts => ['10.0.1.79', '10.0.1.80', '10.0.1.85', '127.0.0.1'],
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}
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</pre>
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**Note:** If you would like to install NRPE on a node that also has the `icinga2::server` class applied, be sure to set the `$server_install_nagios_plugins` parameter in your call to `icinga2::server` to `false`:
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<pre>
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#Install Icinga 2:
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class { 'icinga2::server':
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server_db_type => 'pgsql',
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server_install_nagios_plugins => false,
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}
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</pre>
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|
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This will stop the `icinga2::server` class from trying to install the plugins pacakges, since the `icinga2::nrpe` class will already be installing them and will prevent a resulting duplicate resource error.
|
||||
|
||||
###Object type usage
|
||||
|
||||
This module includes several defined types that can be used to automatically generate Icinga 2 format object definitions. They function in a similar way to [the built-in Nagios types that are included in Puppet](http://docs.puppetlabs.com/guides/exported_resources.html#exported-resources-with-nagios).
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|
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####Exported resources
|
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|
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Like the built-in Nagios types, they can be exported to PuppetDB as virtual resources and collected on your Icinga 2 server.
|
||||
|
||||
Nodes that are being monitored can have the `@@` virtual resources applied to them:
|
||||
|
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<pre>
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||||
@@icinga2::object::host { $::fqdn:
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display_name => $::fqdn,
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ipv4_address => $::ipaddress_eth0,
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groups => ['linux_servers', 'mysql_servers'],
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vars => {
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os => 'linux',
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virtual_machine => 'true',
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distro => $::operatingsystem,
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},
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target_dir => '/etc/icinga2/objects/hosts',
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target_file_name => "${fqdn}.conf"
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}
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</pre>
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||||
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Then, on your Icinga 2 server, you can collect the exported virtual resources (notice the camel casing in the class name):
|
||||
|
||||
<pre>
|
||||
#Collect all @@icinga2::object::host resources from PuppetDB that were exported by other machines:
|
||||
Icinga2::Object::Host <<| |>> { }
|
||||
</pre>
|
||||
|
||||
Unlike the built-in Nagios types, the file owner, group and mode of the automatically generated files can be controlled via the `target_file_owner`, `target_file_group` and `target_file_mode` parameters:
|
||||
|
||||
<pre>
|
||||
@@icinga2::object::host { $::fqdn:
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||||
display_name => $::fqdn,
|
||||
ipv4_address => $::ipaddress_eth0,
|
||||
groups => ['linux_servers', 'mysql_servers'],
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||||
vars => {
|
||||
os => 'linux',
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||||
virtual_machine => 'true',
|
||||
distro => $::operatingsystem,
|
||||
},
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||||
target_dir => '/etc/icinga2/objects/hosts',
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target_file_name => "${fqdn}.conf"
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target_file_owner => 'root',
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||||
target_file_group => 'root',
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||||
target_file_mode => '644'
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||||
}
|
||||
</pre>
|
||||
|
||||
####`undef` and default object values
|
||||
|
||||
Most of the object parameters *in the Puppet module* are set to **undef**.
|
||||
|
||||
This means that they will not be added to the rendered object definition files.
|
||||
|
||||
**However**, this doesn't mean that the values are undefined in Icinga 2. Icinga 2 itself has built-in default values for many object parameters and falls back to them if one isn't present in an object definition. See the docs for individual object types in [Configuring Icinga 2](http://docs.icinga.org/icinga2/latest/doc/module/icinga2/toc#!/icinga2/latest/doc/module/icinga2/chapter/configuring-icinga2) for more info about which object parameters have what default values.
|
||||
|
||||
####`icinga2::object::host`
|
||||
|
||||
**Note:** The `ipv6_address` parameter is set to **undef** by default. This is because `facter` can return either IPv4 or IPv6 addresses for the `ipaddress_ethX` facts. The default value for the `ipv6_address` parameter is set to **undef** and not `ipaddress_eth0` so that an IPv4 address isn't unintentionally set as the value for `address6` in the rendered host object definition.
|
||||
|
||||
If you would like to use an IPv6 address, make sure to set the `ipv6_address` parameter to the `ipaddress_ethX` fact that will give you the right IPv6 address for the machine:
|
||||
|
||||
<pre>
|
||||
@@icinga2::object::host { $::fqdn:
|
||||
display_name => $::fqdn,
|
||||
ipv6_address => $::ipaddress_eth1,
|
||||
....
|
||||
}
|
||||
</pre>
|
||||
|
||||
####`icinga2::object::apply_service_to_host`
|
||||
|
||||
The `apply_service_to_host` defined type can create `apply` objects to apply services to hosts:
|
||||
|
||||
<pre>
|
||||
#Create an apply that checks the number of zombie processes:
|
||||
icinga2::object::apply_service_to_host { 'check_zombie_procs':
|
||||
display_name => 'Zombie procs',
|
||||
check_command => 'nrpe',
|
||||
vars => {
|
||||
nrpe_command => 'check_zombie_procs',
|
||||
},
|
||||
assign_where => '"linux_servers" in host.groups',
|
||||
ignore_where => 'host.name == "localhost"',
|
||||
target_dir => '/etc/icinga2/objects/applys'
|
||||
}
|
||||
</pre>
|
||||
|
||||
This defined type has the same available parameters that the `icinga2::object::service` defined type does.
|
||||
|
||||
The `assign_where` and `ignore_where` parameter values are meant to be provided as strings. Since Icinga 2 requires that string literals be double-quoted, the whole string in your Puppet site manifests will have to be single-quoted (leaving the double quotes intact inside):
|
||||
|
||||
<pre>
|
||||
assign_where => '"linux_servers" in host.groups',
|
||||
</pre>
|
||||
|
||||
If you would like to use Puppet or Facter variables in an `assign_where` or `ignore_where` parameter's value, you'll first need to double-quote the whole value for [Puppet's variable interpolation](http://docs.puppetlabs.com/puppet/latest/reference/lang_datatypes.html#double-quoted-strings) to work. Then, you'll need to escape the double quotes that surround the Icinga 2 string literals inside:
|
||||
|
||||
<pre>
|
||||
assign_where => "\"linux_servers\" in host.${facter_variable}"",
|
||||
</pre>
|
||||
Loading…
Reference in a new issue