# Ryu OpenFlow Controller
 # -----------------------
 
 # Save trace setting
 XTRACE=$(set +o | grep xtrace)
 set +o xtrace
 
 
 RYU_DIR=$DEST/ryu
 # Ryu API Host
 RYU_API_HOST=${RYU_API_HOST:-127.0.0.1}
 # Ryu API Port
 RYU_API_PORT=${RYU_API_PORT:-8080}
 # Ryu OFP Host
 RYU_OFP_HOST=${RYU_OFP_HOST:-127.0.0.1}
 # Ryu OFP Port
 RYU_OFP_PORT=${RYU_OFP_PORT:-6633}
 # Ryu Applications
 RYU_APPS=${RYU_APPS:-ryu.app.simple_isolation,ryu.app.rest}

 # Ryu configuration
 RYU_CONF_CONTENTS=${RYU_CONF_CONTENTS:-"
 --app_lists=$RYU_APPS
 --wsapi_host=$RYU_API_HOST
 --wsapi_port=$RYU_API_PORT
 --ofp_listen_host=$RYU_OFP_HOST
 --ofp_tcp_listen_port=$RYU_OFP_PORT
 --quantum_url=http://$Q_HOST:$Q_PORT
 --quantum_admin_username=$Q_ADMIN_USERNAME
 --quantum_admin_password=$SERVICE_PASSWORD
 --quantum_admin_tenant_name=$SERVICE_TENANT_NAME
 --quantum_admin_auth_url=$KEYSTONE_SERVICE_PROTOCOL://$KEYSTONE_SERVICE_HOST:$KEYSTONE_AUTH_PORT/v2.0
 --quantum_auth_strategy=$Q_AUTH_STRATEGY
 --quantum_controller_addr=tcp:$RYU_OFP_HOST:$RYU_OFP_PORT
 "}

 
 function configure_ryu() {
     setup_develop $RYU_DIR
 }
 
 function init_ryu() {
     RYU_CONF_DIR=/etc/ryu
     if [[ ! -d $RYU_CONF_DIR ]]; then
         sudo mkdir -p $RYU_CONF_DIR
     fi

     sudo chown $STACK_USER $RYU_CONF_DIR

     RYU_CONF=$RYU_CONF_DIR/ryu.conf
     sudo rm -rf $RYU_CONF
 

     echo "${RYU_CONF_CONTENTS}" > $RYU_CONF

 }
 
 function install_ryu() {
     git_clone $RYU_REPO $RYU_DIR $RYU_BRANCH
 }
 
 function start_ryu() {
     screen_it ryu "cd $RYU_DIR && $RYU_DIR/bin/ryu-manager --flagfile $RYU_CONF"
 }
 
 function stop_ryu() {
     :
 }
 
 # Restore xtrace
 $XTRACE