#!/bin/sh

set -e

. /usr/share/debconf/confmodule

N_CONF=/etc/neutron/neutron.conf
OVS_CONF=/etc/neutron/plugins/ml2/openvswitch_agent.ini

# Please remember this function is also in debian/plugin_guess_func
neutron_core_plugin_to_plugin_name () {
        case ${1} in
        "neutron.plugins.ml2.plugin.Ml2Plugin"|"ml2")
                NEUTRON_PLUGIN_NAME=ml2
        ;;
        "networking_plumgrid.neutron.plugins.plugin:NeutronPluginPLUMgridV2"|"plumgrid")
                NEUTRON_PLUGIN_NAME=plumgrid
        ;;
        "midonet.neutron.plugin_v1:MidonetPluginV2"|"modonet")
                NEUTRON_PLUGIN_NAME=midonet
        ;;
        "midonet.neutron.plugin_v2:MidonetPluginV2"|"midonet_v2")
                NEUTRON_PLUGIN_NAME=midonet_v2
        ;;
        "networking_nec.nwa.l2.plugin:NECNWAL2Plugin"|"necnwa")
                NEUTRON_PLUGIN_NAME=nec
        ;;
        "neutron.plugins.mlnx.mlnx_plugin.MellanoxEswitchPlugin")
                NEUTRON_PLUGIN_NAME=mellanox
        ;;
        "vmware_nsx.plugin:NsxMhPlugin"|"vmware")
                NEUTRON_PLUGIN_NAME=vmware
        ;;
        *)
                NEUTRON_PLUGIN_NAME="other"
        ;;
        esac
}

#PKGOS-INCLUDE#

pkgos_var_user_group neutron
chmod 755 /var/lib/neutron

# Configure the SQL connection
pkgos_dbc_read_conf -pkg neutron-common ${N_CONF} database connection neutron $@
pkgos_rabbit_read_conf ${N_CONF} oslo_messaging_rabbit neutron

# Configure the keystone_authtoken
pkgos_read_admin_creds ${N_CONF} keystone_authtoken neutron

# Select which plugin to use
if [ -r "${N_CONF}" ] ; then
	pkgos_inifile get ${N_CONF} DEFAULT core_plugin
	if [ -n "${RET}" ] ; then
		NEUTRON_CORE_PLUGIN_CLASS=${RET}
		neutron_core_plugin_to_plugin_name ${NEUTRON_CORE_PLUGIN_CLASS}
		db_set neutron/plugin-select ${NEUTRON_PLUGIN_NAME}
	fi
fi
db_input high neutron/plugin-select || true
db_go
db_get neutron/plugin-select
NEUTRON_PLUGIN_NAME=${RET}

read_nova_admin_credentials () {
	pkgos_read_config -p high ${N_CONF} nova url neutron/nova_url
	pkgos_read_config -p high ${N_CONF} nova region_name neutron/nova_region
	pkgos_read_config -p medium ${N_CONF} nova project_name neutron/nova_admin_tenant_name
	pkgos_read_config -p medium ${N_CONF} nova username neutron/nova_admin_username
	pkgos_read_config -p high ${N_CONF} nova password neutron/nova_admin_password
}

# OVS specific configurations (if that's the one selected)
if [ "${NEUTRON_PLUGIN_NAME}" = "OpenVSwitch" ] ; then
	# Various network config...
	pkgos_read_config ${OVS_CONF} OVS tenant_network_type   neutron/tenant_network_type
	pkgos_read_config ${OVS_CONF} OVS enable_tunneling      neutron/enable_tunneling
	pkgos_read_config ${OVS_CONF} OVS tunnel_id_ranges      neutron/tunnel_id_ranges

	read_nova_admin_credentials

	# Guess values to put in the local_ip directive
	IF=`LC_ALL=C route | grep default |awk -- '{ print $8 }'`
	guessed_ip_addr=`LC_ALL=C ifconfig ${IF} | grep 'inet addr' | sed 's/.\+inet addr:\([0-9.]\+\).\+/\1/'`
	if [ -z "${guessed_ip_addr}" ] ; then
		guessed_ip_addr=`LC_ALL=C ifconfig ${IF} | grep 'inet adr' | sed 's/.\+inet adr:\([0-9.]\+\).\+/\1/'`
	fi
	db_set neutron/local_ip ${guessed_ip_addr}
	pkgos_read_config ${OVS_CONF} OVS local_ip neutron/local_ip
fi

exit 0