Puppet Class: managedmac::execs

Defined in:
manifests/execs.pp

Overview

Class: managedmac::execs

Dynamically create Puppet Exec resources using the Puppet built-in ‘create_resources’ function.

We do some validation of data, but the usual caveats apply: garbage in, garbage out.

Parameters

commands

This is a Hash of Hashes. The hash should be in the form { title => { parameters } }. See tinyurl.com/7783b9l, and the examples below for details. Type: Hash

defaults

A Hash that defines the default values for the resources created. See tinyurl.com/7783b9l, and the examples below for details. Type: Hash

Variables

Not applicable

Examples

This class was designed to be used with Hiera. As such, the best way to pass options is to specify them in your Hiera datadir:

# Example: defaults.yaml

managedmac::execs::commands:

who_dump:
  command: '/usr/bin/who > /tmp/who.dump'
ps_dump:
  command: '/bin/ps aux > /tmp/ps.dump'

Then simply, create a manifest and include the class…

# Example: my_manifest.pp
include managedmac::execs

If you just wish to test the functionality of this class, you could also do something along these lines:

# Create some Hashes
#defaults = { 'returns' => [0,1], }
$commands = {
   'who_dump' => { 'command' => '/usr/bin/who > /tmp/who.dump' },
   'ps_dump'  => { 'command' => '/bin/ps aux  > /tmp/ps.dump' },
}

class { 'managedmac::execs':
  commands  => $commands,
  defaults => $defaults,
}

Authors

Brian Warsing <bcw@sfu.ca>

Copyright 2015 Simon Fraser University, unless otherwise noted.

Parameters:

  • commands (Any) (defaults to: {})
  • defaults (Any) (defaults to: {}) 


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# File 'manifests/execs.pp', line 67

class managedmac::execs (

  $commands = {},
  $defaults = {},

) {

  unless empty ($commands) {

    validate_hash ($commands)
    validate_hash ($defaults)

    # Cheating: validate that the value for each key is itself a Hash
    $check_hash = inline_template("<%= @commands.reject! {
      |x| x.respond_to? :key } %>")

    unless empty($check_hash) {
      fail("Account Error: Failed to parse one or more account data \
commands: ${check_hash}")
    }

    create_resources(exec, $commands, $defaults)

  }

}