Fresh Installation Steps:
=========================

(1) Clone stable mitaka devstack.
    # git clone https://git.openstack.org/openstack-dev/devstack -b stable/mitaka

(2) Get local.conf.nfp from NFP devstack patch and copy to devstack directory
    as local.conf
    # cd devstack/
    # wget -O local.conf https://raw.githubusercontent.com/openstack/group-based-policy/stable/mitaka/devstack/local.conf.nfp

(3) Configure local.conf
    # Modify NFP_DEVSTACK_MODE to 'advanced'
    # Configure following external network details,
      EXT_NET_GATEWAY=
      EXT_NET_ALLOCATION_POOL_START=
      EXT_NET_ALLOCATION_POOL_END=
      EXT_NET_CIDR=
    # Configure the Configurator VM image path(optional),
    # If configured, install step uploads the specified image
    # If not configured, install step will build a new one and upload it
      ConfiguratorQcow2Image=
    # Configure the Service VM image paths(optional),
    # If configured, install step uploads the specified images
    # If not configured, install step ignores uploading these service images
      VyosQcow2Image=
      HaproxyQcow2Image=
    # Configure PUBLIC_INTERFACE with the public interface name

(4) Install devstack.
    # ./stack.sh


Re-installation Steps:
======================

(1) Follow these steps for cleanup.
    # cd devstack
    # ./unstack.sh
    # ./clean.sh
    # sudo rm -rf /opt/stack
    # cd ..
    # sudo rm -rf devstack

(2) Follow the fresh installation steps.