Puppet module for Snmpd
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README.md

Puppet module: snmpd

DEPRECATION NOTICE

This module is no more actively maintained and will hardly be updated.

Please find an alternative module from other authors or consider Tiny Puppet as replacement.

If you want to maintain this module, contact Alessandro Franceschi

This is a Puppet module for snmpd based on the second generation layout ("NextGen") of Example42 Puppet Modules.

Made by Alessandro Franceschi / Lab42

Official site: http://www.example42.com

Official git repository: http://github.com/example42/puppet-snmpd

Released under the terms of Apache 2 License.

This module requires functions provided by the Example42 Puppi module (you need it even if you don't use and install Puppi)

For detailed info about the logic and usage patterns of Example42 modules check the DOCS directory on Example42 main modules set.

USAGE - Basic management

  • Install snmpd with working defaults:

      class { 'snmpd':
        template     => 'snmpd/snmpd.conf.erb',
        snmplocation => 'Building 4, Rack 12',
        snmpcontact  => 'noc@company.example42',
        options      => {
          'com2sec readonly default'        => 'public',
          'group MyROGroup v1'              => 'readonly',
          'group MyROGroup v2c'             => 'readonly',
          'group MyROGroup usm'             => 'readonly',
          'view all    included  .1'        => '80',
          'access MyROGroup ""'             => 'any       noauth    exact  all    none   none',
          'extend .1.3.6.1.4.1.2021.7890.1' => 'distro /usr/bin/distro # Observium: host os detection',
          'dontLogTCPWrappersConnects'      => 'true # To keep "snmpd[3458]: Connection from UDP: [127.0.0.1]:48911" from filling your logs'
        }
      }
    
  • Install snmpd with default settings

      class { 'snmpd': }
    
  • Install a specific version of snmpd package

      class { 'snmpd':
        version => '1.0.1',
      }
    
  • Disable snmpd service.

      class { 'snmpd':
        disable => true
      }
    
  • Remove snmpd package

      class { 'snmpd':
        absent => true
      }
    
  • Enable auditing without without making changes on existing snmpd configuration files

      class { 'snmpd':
        audit_only => true
      }
    

USAGE - Overrides and Customizations

  • Use custom sources for main config file

      class { 'snmpd':
        source => [ "puppet:///modules/example42/snmpd/snmpd.conf-${hostname}" , "puppet:///modules/example42/snmpd/snmpd.conf" ], 
      }
    
  • Use custom source directory for the whole configuration dir

      class { 'snmpd':
        source_dir       => 'puppet:///modules/example42/snmpd/conf/',
        source_dir_purge => false, # Set to true to purge any existing file not present in $source_dir
      }
    
  • Use custom template for main config file. Note that template and source arguments are alternative.

      class { 'snmpd':
        template => 'example42/snmpd/snmpd.conf.erb',
      }
    
  • Manage directly the content of the main config file. Note that template has precedence over content.

      class { 'snmpd':
        content => inline_template(
          file( "$settings::modulepath/example42/templates/snmpd/snmpd.conf.erb-${hostname}",
                "$settings::modulepath/example42/templates/snmpd/snmpd.conf.erb" ) ),
      }
    
  • Automatically include a custom subclass

      class { 'snmpd':
        my_class => 'example42::my_snmpd',
      }
    

USAGE - Example42 extensions management

  • Activate puppi (recommended, but disabled by default)

      class { 'snmpd':
        puppi    => true,
      }
    
  • Activate puppi and use a custom puppi_helper template (to be provided separately with a puppi::helper define ) to customize the output of puppi commands

      class { 'snmpd':
        puppi        => true,
        puppi_helper => 'myhelper', 
      }
    
  • Activate automatic monitoring (recommended, but disabled by default). This option requires the usage of Example42 monitor and relevant monitor tools modules

      class { 'snmpd':
        monitor      => true,
        monitor_tool => [ 'nagios' , 'monit' , 'munin' ],
      }
    
  • Activate automatic firewalling. This option requires the usage of Example42 firewall and relevant firewall tools modules

      class { 'snmpd':       
        firewall      => true,
        firewall_tool => 'iptables',
        firewall_src  => '10.42.0.0/24',
        firewall_dst  => $ipaddress_eth0,
      }
    

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