HAProxy Puppet Module Snippets

0_instantiating.pp

  haproxy::proxy { $es_proxy_name:
    proxy     => 'listen',
    mode      => 'http',
    ip        => $::ipaddress_lo,
    port      => '9200',
    config    => {
    balance => 'roundrobin',
    },
  }

  haproxy::proxy::member { $es_proxy_name:
    hostname => $::ec2_local_ipv4,
    port     => '9200',
    param     => [
      'weight 1',
      'maxconn 1000',
      'check',
    ],
  }

1_proxy.pp

define haproxy::proxy(
  $group       = $name,
  $proxy       = 'listen',
  $mode        = undef,
  $ip          = undef,
  $port        = undef,
  $server      = undef,
  $config      = undef,
  $order       = '30',
  $block       = undef,
  $anchor      = undef,
) {
  include stdlib
  tag($group)

  if $config { validate_hash($config) }
  if $mode { validate_re($mode, '^(http|tcp|health)') }
  if $block { validate_array($block) }

  validate_re($proxy, '^(listen|backend|frontend)')

  # Left this way to allow for params() in default/global cases
  $config_options = $config

  if $ip and $port {
    $proxy_options = "${name} ${ip}:${port}"
  } else {
    $proxy_options = $name
  }


  concat::fragment { $name:
    target  => '/etc/haproxy/haproxy.cfg',
    order   => $order,
    content => template('haproxy/etc/haproxy/haproxy.cfg_default-proxy.erb'),
  }

  # Realize any and all exported resources for this Proxy
  Concat::Fragment <<| tag == $name |>>
}

2_member.pp

define haproxy::proxy::member(
  $proxy     = $name,
  $shortname = $::hostname,
  $hostname  = $::fqdn,
  $port      = undef,
  $param     = undef,
) {
  include stdlib

  if $param { validate_array($param) }

  $server = {
    "${shortname}" => {
      host         => $hostname,
      port         => $port,
      param        => $param,
    }
  }

  @@concat::fragment { "${proxy}-02-member-${shortname}":
    target  => '/etc/haproxy/haproxy.cfg',
    order   => "30",
    content => template('haproxy/etc/haproxy/haproxy.cfg_server.erb'),
    tag     => $proxy,
  }
}

3_haproxy_default_proxy.erb

<%= proxy %> <%- if @proxy_options -%> <%= proxy_options %><% end %>
<%- if @mode -%>
  mode <%= mode %>
<%- end -%>
<%- if @config -%>
<%= scope.function_template(['haproxy/etc/haproxy/haproxy.cfg_config.erb']) %>
<%- end -%>
<%- if @server -%>
<%= scope.function_template(['haproxy/etc/haproxy/haproxy.cfg_server.erb']) %>
<%- end -%>

4_haproxy.cfg_config.erb

<%- if @config_options -%>
  <%- config_options.sort.each do |k,v| -%>
    <%- if v.class == Array -%>
      <%- v.each do |x| -%>
  <%= k %> <%= x %>
      <%- end -%>
    <%- else -%>
  <%= k %> <%= v %>
    <%- end -%>
  <%- end -%>
<%- end -%>

5_haproxy.cfg_server.erb

<%- server.each do |k,v| -%>
  server <%= k %> <%= v['host'] %>:<%= v['port'] %> <% if v.has_key?('param') %><%= v['param'].join(' ') %><%- end %>
<%- end -%>