#!/usr/bin/env bash
set -o errexit -o nounset
TOP_DIR=$(cd "$(dirname "$0")/.." && pwd)
source "$TOP_DIR/config/paths"
source "$CONFIG_DIR/credentials"
source "$LIB_DIR/functions.guest.sh"
exec_logfile

indicate_current_auto

#------------------------------------------------------------------------------
# Create the provier (external) network and a subnet on it
# http://docs.openstack.org/mitaka/install-guide-ubuntu/launch-instance-networks-provider.html
#------------------------------------------------------------------------------

echo "Sourcing the admin credentials."
source "$CONFIG_DIR/admin-openstackrc.sh"

# Wait for neutron to start
wait_for_neutron

function wait_for_agent {
    local agent=$1

    echo -n "Waiting for neutron agent $agent."
    (
    source "$CONFIG_DIR/admin-openstackrc.sh"
    while neutron agent-list|grep "$agent" | grep "xxx" >/dev/null; do
        sleep 1
        echo -n .
    done
    echo
    )
}

wait_for_agent neutron-l3-agent

echo "linuxbridge-agent and dhcp-agent must be up before we can add interfaces."
wait_for_agent neutron-linuxbridge-agent
wait_for_agent neutron-dhcp-agent

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Create the provider network
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

echo "Creating the public network."
neutron net-create \
    --shared \
    --provider:physical_network provider \
    --provider:network_type flat \
    provider

echo "Creating a subnet on the public network."
neutron subnet-create --name provider  \
    --allocation-pool start="$START_IP_ADDRESS,end=$END_IP_ADDRESS" \
    --dns-nameserver "$DNS_RESOLVER" \
    --gateway "$PUBLIC_NETWORK_GATEWAY" \
    provider "$PUBLIC_NETWORK_CIDR"

echo -n "Waiting for DHCP namespace."
until [ "$(ip netns | grep -o "^qdhcp-[a-z0-9-]*" | wc -l)" -gt 0 ]; do
    sleep 1
    echo -n .
done
echo

echo -n "Waiting for bridge to show up."
# Bridge names are something like brq219ddb93-c9
until [ "$(brctl show | grep -o "^brq[a-z0-9-]*" | wc -l)" -gt 0 ]; do
    sleep 1
    echo -n .
done
echo

brctl show