devstack/unstack.sh
Yoshihiro Kaneko 602cf9bd68 Add support for the Quantum Ryu plugin.
This patch allows using the Quantum Ryu plugin.
Ryu plugin lets Quantum link Open vSwitch and Ryu OpenFlow controller[1].

Ryu OpenFlow controller is not Openstack component, but I added some
processing that is related with Ryu to stack.sh for the convenience of
the person who intend to try the plugin.

Instructions for using Ryu plugin:
1. Enable services: "q-svc", "q-agt", "q-dhcp", "q-l3", "quantum", "ryu"
2. Set Q_PLUGIN to "ryu"
3. Set an internal network interface name to connect br-int on plural
   hosts to RYU_INTERNAL_INTERFACE (optional)

Example localrc:
  disable_service n-net
  enable_service q-svc q-agt q-dhcp q-l3 quantum ryu
  Q_PLUGIN=ryu
  RYU_INTERNAL_INTERFACE=eth1

[1] http://osrg.github.com/ryu/

Change-Id: Ic1da132fa421f1c70c10a319ee3239831b0f956f
2012-10-19 07:00:32 +00:00

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#!/usr/bin/env bash
# **unstack.sh**
# Stops that which is started by ``stack.sh`` (mostly)
# mysql and rabbit are left running as OpenStack code refreshes
# do not require them to be restarted.
#
# Stop all processes by setting ``UNSTACK_ALL`` or specifying ``--all``
# on the command line
# Keep track of the current devstack directory.
TOP_DIR=$(cd $(dirname "$0") && pwd)
# Import common functions
source $TOP_DIR/functions
# Load local configuration
source $TOP_DIR/stackrc
# Destination path for service data
DATA_DIR=${DATA_DIR:-${DEST}/data}
# Get project function libraries
source $TOP_DIR/lib/cinder
source $TOP_DIR/lib/n-vol
# Determine what system we are running on. This provides ``os_VENDOR``,
# ``os_RELEASE``, ``os_UPDATE``, ``os_PACKAGE``, ``os_CODENAME``
GetOSVersion
if [[ "$1" == "--all" ]]; then
UNSTACK_ALL=${UNSTACK_ALL:-1}
fi
# Shut down devstack's screen to get the bulk of OpenStack services in one shot
SCREEN=$(which screen)
if [[ -n "$SCREEN" ]]; then
SESSION=$(screen -ls | awk '/[0-9].stack/ { print $1 }')
if [[ -n "$SESSION" ]]; then
screen -X -S $SESSION quit
fi
fi
# Swift runs daemons
if is_service_enabled swift; then
swift-init all stop 2>/dev/null || true
fi
# Apache has the WSGI processes
if is_service_enabled horizon; then
stop_service apache2
fi
SCSI_PERSIST_DIR=$CINDER_STATE_PATH/volumes/*
# Get the iSCSI volumes
if is_service_enabled cinder n-vol; then
if is_service_enabled n-vol; then
SCSI_PERSIST_DIR=$NOVA_STATE_PATH/volumes/*
fi
TARGETS=$(sudo tgtadm --op show --mode target)
if [ $? -ne 0 ]; then
# If tgt driver isn't running this won't work obviously
# So check the response and restart if need be
echo "tgtd seems to be in a bad state, restarting..."
if [[ "$os_PACKAGE" = "deb" ]]; then
restart_service tgt
else
restart_service tgtd
fi
TARGETS=$(sudo tgtadm --op show --mode target)
fi
if [[ -n "$TARGETS" ]]; then
iqn_list=( $(grep --no-filename -r iqn $SCSI_PERSIST_DIR | sed 's/<target //' | sed 's/>//') )
for i in "${iqn_list[@]}"; do
echo removing iSCSI target: $i
sudo tgt-admin --delete $i
done
fi
if is_service_enabled cinder; then
sudo rm -rf $CINDER_STATE_PATH/volumes/*
fi
if is_service_enabled n-vol; then
sudo rm -rf $NOVA_STATE_PATH/volumes/*
fi
if [[ "$os_PACKAGE" = "deb" ]]; then
stop_service tgt
else
stop_service tgtd
fi
fi
if [[ -n "$UNSTACK_ALL" ]]; then
# Stop MySQL server
if is_service_enabled mysql; then
stop_service mysql
fi
# Stop rabbitmq-server
if is_service_enabled rabbit; then
stop_service rabbitmq-server
fi
fi
# Quantum dhcp agent runs dnsmasq
if is_service_enabled q-dhcp; then
pid=$(ps aux | awk '/[d]nsmasq.+interface=tap/ { print $2 }')
[ ! -z "$pid" ] && sudo kill -9 $pid
fi