unable to set resolv.conf

I have the following in cloud.cfg

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# The top level settings are used as module
# and system configuration.

# A set of users which may be applied and/or used by various modules
# when a 'default' entry is found it will reference the 'default_user'
# from the distro configuration specified below
users:
   - default

# If this is set, 'root' will not be able to ssh in and they
# will get a message to login instead as the above $user (ubuntu)
disable_root: true

locale: en_US.UTF-8
apt_preserve_sources_list: true

# This will cause the set+update hostname module to not operate (if true)
preserve_hostname: true

manage_etc_hosts: false
manage-resolv-conf: true

resolv_conf:
  nameservers: ['208.67.222.222', '127.0.0.1', '208.67.220.220']
  searchdomains:
    - my.domain.net
  domain: domain.net
  options:
    rotate: true
    timeout: 1

# write_files:
# - path: /etc/resolv.conf
# permissions: 0644
# owner: root
# content: |
# nameserver 208.67.222.222
# nameserver 127.0.0.1
# nameserver 208.67.220.220

# Example datasource config
# datasource:
# Ec2:
# metadata_urls: [ 'blah.com' ]
# timeout: 5 # (defaults to 50 seconds)
# max_wait: 10 # (defaults to 120 seconds)

# The modules that run in the 'init' stage
cloud_init_modules:
 - migrator
 - seed_random
 - bootcmd
 - write-files
 - growpart
 - resizefs
 - set_hostname
 - update_hostname
 - update_etc_hosts
 - ca-certs
 - rsyslog
 - users-groups
 - ssh
# - resolv_conf

# The modules that run in the 'config' stage
cloud_config_modules:
# Emit the cloud config ready event
# this can be used by upstart jobs for 'start on cloud-config'.
 - emit_upstart
 - disk_setup
 - mounts
 - ssh-import-id
 - locale
 - set-passwords
 - grub-dpkg
 - apt-pipelining
 - apt-configure
 - package-update-upgrade-install
 - landscape
 - timezone
 - puppet
 - chef
 - salt-minion
 - mcollective
 - disable-ec2-metadata
 - runcmd
 - byobu

# The modules that run in the 'final' stage
cloud_final_modules:
 - rightscale_userdata
 - scripts-vendor
 - scripts-per-once
 - scripts-per-boot
 - scripts-per-instance
 - scripts-user
 - ssh-authkey-fingerprints
 - keys-to-console
 - phone-home
 - final-message
 - power-state-change

# System and/or distro specific settings
# (not accessible to handlers/transforms)
system_info:
   # This will affect which distro class gets used
   distro: ubuntu
   # Default user name + that default users groups (if added/used)
   default_user:
     name: admin
     lock_passwd: false
     gecos: Ubuntu
     groups: [adm, audio, cdrom, dialout, dip, floppy, netdev, plugdev, sudo, video]
     sudo: ["ALL=(ALL) NOPASSWD:ALL"]
     shell: /bin/bash
   # Other config here will be given to the distro class and/or path classes
   paths:
      cloud_dir: /var/lib/cloud/
      templates_dir: /etc/cloud/templates/
      upstart_dir: /etc/init/
   ssh_svcname: ssh

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For some off reason resolv.conf get keep getting overwritten by resolvconf.