#!/bin/bash

# Copyright 2015 VMware, Inc.
#
# All Rights Reserved
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

# Neutron VMware DVS plugin
# -------------------------

# Settings previously defined in devstack:lib/neutron-legacy
NEUTRON_CONF_DIR=/etc/neutron
export NEUTRON_TEST_CONFIG_FILE=${NEUTRON_TEST_CONFIG_FILE:-"$NEUTRON_CONF_DIR/debug.ini"}
Q_DHCP_CONF_FILE=$NEUTRON_CONF_DIR/dhcp_agent.ini

# Save trace setting
DVS_XTRACE=$(set +o | grep xtrace)
set +o xtrace

source $TOP_DIR/lib/neutron_plugins/ovs_base

DVS_BRIDGE=${DVS_BRIDGE:-br-dvs}
DVS_INTERFACE=${DVS_INTERFACE:-eth1}

function setup_integration_bridge {
    # remove integration bridge created by Neutron
    for bridge in $(sudo ovs-vsctl list-br | grep -o -e $DVS_BRIDGE); do
        sudo ovs-vsctl del-br ${bridge}
    done
    _neutron_ovs_base_setup_bridge $DVS_BRIDGE
    sudo ovs-vsctl add-port $DVS_BRIDGE $DVS_INTERFACE
}

function is_neutron_ovs_base_plugin {
    # DVS uses OVS, but not the l3-agent
    return 0
}

function neutron_plugin_create_nova_conf {
    # if n-cpu is enabled, then setup integration bridge
    if is_service_enabled n-cpu; then
        setup_integration_bridge
    fi
}

function neutron_plugin_install_agent_packages {
    # VMware DVS Plugin does not run q-agt, but it currently needs dhcp and metadata agents
    _neutron_ovs_base_install_agent_packages
}

function neutron_plugin_configure_common {
    Q_PLUGIN_CONF_PATH=etc/neutron/plugins/vmware
    Q_PLUGIN_CONF_FILENAME=nsx.ini
    Q_PLUGIN_SRC_CONF_PATH=vmware-nsx/etc
    VMWARE_NSX_DIR=vmware-nsx
    # Uses oslo config generator to generate sample configuration file
    (cd $DEST/$VMWARE_NSX_DIR && exec ./tools/generate_config_file_samples.sh)
    mkdir -p /$Q_PLUGIN_CONF_PATH
    cp $DEST/$Q_PLUGIN_SRC_CONF_PATH/nsx.ini.sample /$Q_PLUGIN_CONF_PATH/$Q_PLUGIN_CONF_FILENAME
    Q_DB_NAME="neutron_nsx"
    Q_PLUGIN_CLASS="vmware_dvs"
}

function neutron_plugin_configure_debug_command {
    # TBD (garyk)
    :
}

function neutron_plugin_configure_dhcp_agent {
    iniset $Q_DHCP_CONF_FILE DEFAULT enable_isolated_metadata True
    iniset $Q_DHCP_CONF_FILE DEFAULT enable_metadata_network True
    iniset $Q_DHCP_CONF_FILE DEFAULT ovs_integration_bridge $OVS_BRIDGE
    iniset $Q_DHCP_CONF_FILE DEFAULT dhcp_driver "vmware_nsx.plugins.dvs.dhcp.Dnsmasq"
}

function neutron_plugin_configure_l3_agent {
    # VMware DVS plugin does not run L3 agent
    die $LINENO "q-l3 should not be executed with VMware DVS plugin!"
}

function neutron_plugin_configure_plugin_agent {
    # VMware DVS plugin does not run L2 agent
    die $LINENO "q-agt must not be executed with VMware DVS plugin!"
}

function neutron_plugin_configure_service {
    iniset /$Q_PLUGIN_CONF_FILE dvs host_ip "$VMWAREAPI_IP"
    iniset /$Q_PLUGIN_CONF_FILE dvs host_username "$VMWAREAPI_USER"
    iniset /$Q_PLUGIN_CONF_FILE dvs host_password "$VMWAREAPI_PASSWORD"
    iniset /$Q_PLUGIN_CONF_FILE dvs ca_file "$VMWAREAPI_CA_FILE"
    iniset /$Q_PLUGIN_CONF_FILE dvs insecure "$VMWAREAPI_INSECURE"
    iniset /$Q_PLUGIN_CONF_FILE dvs dvs_name "$VMWARE_DVS_NAME"
    iniset /$Q_PLUGIN_CONF_FILE DEFAULT nsx_extension_drivers vmware_dvs_dns
}

function neutron_plugin_setup_interface_driver {
    local conf_file=$1
    iniset $conf_file DEFAULT interface_driver neutron.agent.linux.interface.OVSInterfaceDriver
}

function neutron_plugin_check_adv_test_requirements {
    is_service_enabled q-dhcp && return 0
}

# Restore xtrace
$DVS_XTRACE