#!/bin/bash
#
# lib/opendaylight
# Functions to control the configuration and operation of the opendaylight service

# Dependencies:
#
# ``functions`` file
# ``DEST`` must be defined
# ``STACK_USER`` must be defined

# ``stack.sh`` calls the entry points in this order:
#
# - is_opendaylight_enabled
# - is_opendaylight-compute_enabled
# - install_opendaylight
# - install_opendaylight-compute
# - configure_opendaylight
# - init_opendaylight
# - start_opendaylight
# - stop_opendaylight-compute
# - stop_opendaylight
# - cleanup_opendaylight

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


# For OVS_BRIDGE and PUBLIC_BRIDGE
source $TOP_DIR/lib/neutron_plugins/ovs_base

# Defaults
# --------

# The IP address of ODL. Set this in local.conf.
# ODL_MGR_IP=
ODL_MGR_IP=${ODL_MGR_IP:-$SERVICE_HOST}

# The ODL endpoint URL
ODL_ENDPOINT=${ODL_ENDPOINT:-http://${ODL_MGR_IP}:8080/controller/nb/v2/neutron}

# The ODL username
ODL_USERNAME=${ODL_USERNAME:-admin}

# The ODL password
ODL_PASSWORD=${ODL_PASSWORD:-admin}

# Short name of ODL package
ODL_NAME=${ODL_NAME:-distribution-karaf-0.2.1-Helium-SR1.1}

# <define global variables here that belong to this project>
ODL_DIR=$DEST/opendaylight

# The OpenDaylight Package, currently using 'Hydrogen' release
ODL_PKG=${ODL_PKG:-distribution-karaf-0.2.1-Helium-SR1.1.zip}

# The OpenDaylight URL
ODL_URL=${ODL_URL:-https://nexus.opendaylight.org/content/repositories/public/org/opendaylight/integration/distribution-karaf/0.2.1-Helium-SR1.1/}

# Default arguments for OpenDaylight. This is typically used to set
# Java memory options.
# ``ODL_ARGS=Xmx1024m -XX:MaxPermSize=512m``
ODL_ARGS=${ODL_ARGS:-"-XX:MaxPermSize=384m"}

# How long to pause after ODL starts to let it complete booting
ODL_BOOT_WAIT=${ODL_BOOT_WAIT:-20}

# The physical provider network to device mapping
ODL_PROVIDER_MAPPINGS=${ODL_PROVIDER_MAPPINGS:-physnet1:eth1}

# Enable OpenDaylight l3 forwarding
ODL_L3=${ODL_L3:-False}


# Entry Points
# ------------

# Test if OpenDaylight is enabled
# is_opendaylight_enabled
function is_opendaylight_enabled {
    [[ ,${ENABLED_SERVICES} =~ ,"odl-" ]] && return 0
    return 1
}

# cleanup_opendaylight() - Remove residual data files, anything left over from previous
# runs that a clean run would need to clean up
function cleanup_opendaylight {
    :
}

# configure_opendaylight() - Set config files, create data dirs, etc
function configure_opendaylight {
    # Add odl-ovsdb-openstack if it's not already there
    local ODLOVSDB=$(cat $ODL_DIR/$ODL_NAME/etc/org.apache.karaf.features.cfg | grep featuresBoot= | grep odl)
    if [ "$ODLOVSDB" == "" ]; then
        sed -i '/^featuresBoot=/ s/$/,odl-ovsdb-openstack/' $ODL_DIR/$ODL_NAME/etc/org.apache.karaf.features.cfg
    fi

    # Configure OpenFlow 1.3 if it's not there
    local OFLOW13=$(cat $ODL_DIR/$ODL_NAME/etc/custom.properties | grep ^of.version)
    if [ "$OFLOW13" == "" ]; then
        echo "ovsdb.of.version=1.3" >> $ODL_DIR/$ODL_NAME/etc/custom.properties
    fi

    # Configure L3 if the user wants it
    if [ "${ODL_L3}" == "True" ]; then
        # Configure L3 FWD if it's not there
        local L3FWD=$(cat $ODL_DIR/$ODL_NAME/etc/custom.properties | grep ^ovsdb.l3.fwd.enabled)
        if [ "$L3FWD" == "" ]; then
            echo "ovsdb.l3.fwd.enabled=yes" >> $ODL_DIR/$ODL_NAME/etc/custom.properties
        fi
    fi
}

function configure_ml2_odl {
    populate_ml2_config /$Q_PLUGIN_CONF_FILE ml2_odl url=$ODL_ENDPOINT
    populate_ml2_config /$Q_PLUGIN_CONF_FILE ml2_odl username=$ODL_USERNAME
    populate_ml2_config /$Q_PLUGIN_CONF_FILE ml2_odl password=$ODL_PASSWORD
}

# init_opendaylight() - Initialize databases, etc.
function init_opendaylight {
    # clean up from previous (possibly aborted) runs
    # create required data files
    :
}

# install_opendaylight() - Collect source and prepare
function install_opendaylight {
    local _pwd=$(pwd)

    if is_ubuntu; then
        install_package maven openjdk-7-jre openjdk-7-jdk
    else
        yum_install maven java-1.7.0-openjdk
    fi

    # Download OpenDaylight
    mkdir -p $ODL_DIR
    cd $ODL_DIR
    wget -N $ODL_URL/$ODL_PKG
    unzip -u $ODL_PKG
}

# install_opendaylight-compute - Make sure OVS is installed
function install_opendaylight-compute {
    # packages are the same as for Neutron OVS agent
    _neutron_ovs_base_install_agent_packages
}

# start_opendaylight() - Start running processes, including screen
function start_opendaylight {
    if is_ubuntu; then
        JHOME=/usr/lib/jvm/java-1.7.0-openjdk-amd64
    else
        JHOME=/usr/lib/jvm/java-1.7.0-openjdk
    fi

    # The flags to ODL have the following meaning:
    #   -of13: runs ODL using OpenFlow 1.3 protocol support.
    #   -virt ovsdb: Runs ODL in "virtualization" mode with OVSDB support

    run_process odl-server "cd $ODL_DIR/$ODL_NAME && JAVA_HOME=$JHOME bin/karaf"

    # Sleep a bit to let OpenDaylight finish starting up
    sleep $ODL_BOOT_WAIT
}

# stop_opendaylight() - Stop running processes (non-screen)
function stop_opendaylight {
    stop_process odl-server
}

# stop_opendaylight-compute() - Remove OVS bridges
function stop_opendaylight-compute {
    # remove all OVS ports that look like Neutron created ports
    for port in $(sudo ovs-vsctl list port | grep -o -e tap[0-9a-f\-]* -e q[rg]-[0-9a-f\-]*); do
        sudo ovs-vsctl del-port ${port}
    done

    # remove all OVS bridges created by Neutron
    for bridge in $(sudo ovs-vsctl list-br | grep -o -e ${OVS_BRIDGE} -e ${PUBLIC_BRIDGE}); do
        sudo ovs-vsctl del-br ${bridge}
    done
}

# Restore xtrace
$XTRACE

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