ec2.rb

require_recipe 'fog'

route53_rr node[:ec2][:instance_id] do
  record_type "CNAME"
  fqdn "#{node[:ec2][:instance_id]}.#{node["route53"]["domain"]}"
  rdata(["#{node[:ec2][:public_hostname]}."])
  accesskey node["route53"]["accesskey"]
  secretkey node["route53"]["secretkey"]
  zoneid node["route53"]["zoneid"]
  action :update
end

new_hostname = "#{node["route53"]["ec2"]["type"]}-#{node["route53"]["ec2"]["env"]}-#{node[:ec2][:instance_id]}"
new_fqdn = "#{new_hostname}.#{node["route53"]["domain"]}"

route53_rr new_hostname do
  record_type "CNAME"
  fqdn new_fqdn
  rdata(["#{node[:ec2][:public_hostname]}."])
  accesskey node["route53"]["accesskey"]
  secretkey node["route53"]["secretkey"]
  zoneid node["route53"]["zoneid"]
  action :update
end

ruby_block "edit resolv.conf" do
  block do
    rc = Chef::Util::FileEdit.new("/etc/resolv.conf")
    rc.search_file_replace_line(/^search/, "search #{node["route53"]["domain"]} compute-1.internal")
    rc.search_file_replace_line(/^domain/, "domain #{node["route53"]["domain"]}")
    rc.write_file
  end
end

ruby_block "edit etc hosts" do
  block do
    rc = Chef::Util::FileEdit.new("/etc/hosts")
    rc.search_file_replace_line(/^127\.0\.0\.1.*localhost$/, "127.0.0.1 #{new_fqdn} #{new_hostname} localhost")
    rc.write_file
  end
end

execute "hostname --file /etc/hostname" do
  action :nothing
end

file "/etc/hostname" do
  content "#{new_hostname}"
  notifies :run, "execute[hostname --file /etc/hostname]", :immediately
end

node.automatic_attrs["hostname"] = new_hostname
node.automatic_attrs["fqdn"] = new_fqdn
node.automatic_attrs["domain"] = node.route53.domain