gistfile1.rb

chef_gem 'chef-rewind'
require 'chef/rewind'

include_recipe "postfix::server"
include_recipe "dovecot"
include_recipe "mysql::client"
include_recipe "mi-ssl"

pkgs = []

case node['platform_family']
when 'debian'
  pkgs = %w{postfix-mysql libpam-mysql sasl2-bin python-passlib python-mysqldb}
end

pkgs.each {|pkg| package pkg}


rewind "package[postfix]" do
  notifies :create, "ruby_block[postfix-uid]", :immediately
end
rewind "package[dovecot-core]" do
  notifies :create, "ruby_block[dovecot-uid]", :immediately
end


config = Chef::EncryptedDataBagItem.load('auth','mysql')

template "/etc/pam.d/smtp" do
  source 'pam-smtpd.erb'
end

template "/etc/pam-mysql.conf" do
  source 'pam-mysql.conf.erb'
  variables({:config => config})
end

template "/etc/postfix/mysql_virtual_mailboxes.cf" do
  source 'mysql_virtual_mailboxes.cf.erb'
  variables({:config => config})
  notifies :restart, "service[postfix]"
end

template "/etc/postfix/sasl/smtpd.conf" do
  source 'smtpd.conf.erb'
  notifies :restart, "service[postfix]"
end

group "sasl" do
  action :modify
  members 'postfix'
  append true
  notifies :start, "service[saslauthd]"
end

service "saslauthd" do
  supports :status => true, :restart => true
  action :enable
end

template "/etc/default/saslauthd" do
  source 'default-saslauthd.erb'
end

class Chef::Resource
  include Mi::Postfix
end

ruby_block "postfix-uid" do
  block do
    require 'pp'
    assign_uid()
    pp node.debug_value('postfix','main')
  end
  action :create
  notifies :create, "template[/etc/postfix/main.cf]", :immediately
end

ruby_block "dovecot-uid" do
  block do
    assign_uid()
  end
  action :create
  notifies :create, "template[conf.d/auth-system.conf.ext]", :immediately
  notifies :create, "template[conf.d/10-mail.conf]", :immediately
end

###### assign_uid looks like:

require 'etc'
module Mi
  module Postfix
    def assign_uid
      begin
        user = Etc::getpwnam('postfix')
        %w{uid gid}.each do |k|
          normal['mi-mailer'][k] = user[k]
          normal['postfix']['main']["virtual_#{k}_maps"]="static:#{node['mi-mailer'][k]}"
          normal['dovecot']['conf']["first_valid_#{k}"] = node['mi-mailer'][k]
        end
        normal['dovecot']['auth']['system']['userdb'] = {
          'driver' => 'static',
          'args' => "uid=#{node['mi-mailer']['uid']} gid=#{node['mi-mailer']['gid']} #{node['mi-mailer']['mail_location']}/%u"
        }
      rescue
        puts "WARNING: postfix uid not set yet. Ignoring..."
      end
    end
  end
end