binford2k

# the format of a puppet resource
resource_type { 'resource title':
  ensure    => 'the state I want the resource to exist in',
  property1 => value,
  property2 => value,
  property3 => value,
}


# a silly example that might go on a job listing

binford2k

---
:backends:
  - yaml

:yaml:
  :datadir: /etc/puppetlabs/code/hieradata

:hierarchy:
  - "%{::trusted.certname}"
  - "%{environment}"

binford2k

file { '/etc/motd':
  ensure  => file,
  content => 'What I expect in the motd',
}
concat { '/etc/motd':
  ensure => present,
}
concat::fragment { 'motd header':
  target  => '/etc/motd',
  order   => '01',

binford2k

Puppet::Parser::Functions.newfunction(:local_scope,
  :type => :rvalue,
  :doc => <<-'EOS'
    Generates the local scope as a hash. This allows you to use epp functions more
    or less like erb templates by passing local scope as the parameters argument.
    e.g., `content => epp('mymodname/template.epp', local_scope() )`
    EOS
) do |args|
  scope = self.to_hash
  scope.reject! { |key,val| scope['facts'].include? key }

binford2k

# this blows up with Error while evaluating a Resource Statement, Could not find stage last specified by Class[Test]
class {'test':
	stage => 'last',
	msg   => 'boo',
}


stage { 'last': }
Stage['main'] -> Stage['last']

binford2k

# this blows up with Error while evaluating a Resource Statement, Could not find stage last specified by Class[Test]
class {'test':
	stage => 'last',
	msg   => 'boo',
}


stage { 'last': }
Stage['main'] -> Stage['last']

binford2k

# Press the 'show relationships' button
# to see how these classes relate to one another
class outside {
  include floater    # this class is uncontained, so it will "float" outside the graph
  contain contained  # this class is contained, so it will be enforced within the parent class
  require required   # this class is required, so all we know is that it will be enforced before the parent class
}

class floater {
  file { '/tmp/foo':

binford2k

$data = [1,2,3,3,3,8,5,4,2,2,]

$dupes = $data.reduce |$memo, $value| {
  if count($data, $value) > 1 {
    [$memo, $value]
  }
  else {
    [$memo]
  }
}

binford2k

binford2k

['192.168.1.24','192.168.1.25'].each |$ipaddress| {

    firewall_rule { "Allow HTTP access to ${ipaddress}":
      source_ip        = $ipaddress,
      destination_port = 80,
      protocol         = 'tcp',
    }
    
}