devstack/unstack.sh
Clay Gerrard 40b433fb07 Make unstack.sh more independently deterministic
In some initialization conditions (having never ran stack.sh) the
result of unstack.sh is dependent on if the user had previously
installed lvm2 or disabled the cinder service.

This change makes all results the same with a bit of LBYL.

There's also a drive-by to put a comment back where it belongs after
being accidentally moved in the related change.

Related-Change: I09b1a7bee0785e5e1bb7dc96158a654bd3f15c83

Change-Id: I9a7e052677d60cbbbdd582877f3c6c48c387f668
Closes-Bug: #1619195
2016-09-01 02:17:54 -07:00

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#!/bin/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 ``-a``
# on the command line
UNSTACK_ALL=${UNSTACK_ALL:-""}
while getopts ":a" opt; do
case $opt in
a)
UNSTACK_ALL="-1"
;;
esac
done
# Keep track of the current DevStack directory.
TOP_DIR=$(cd $(dirname "$0") && pwd)
FILES=$TOP_DIR/files
# Import common functions
source $TOP_DIR/functions
# Import database library
source $TOP_DIR/lib/database
# Load local configuration
source $TOP_DIR/openrc
# Destination path for service data
DATA_DIR=${DATA_DIR:-${DEST}/data}
if [[ $EUID -eq 0 ]]; then
echo "You are running this script as root."
echo "It might work but you will have a better day running it as $STACK_USER"
exit 1
fi
# Configure Projects
# ==================
# Plugin Phase 0: override_defaults - allow plugins to override
# defaults before other services are run
run_phase override_defaults
# Import apache functions
source $TOP_DIR/lib/apache
# Import TLS functions
source $TOP_DIR/lib/tls
# Source project function libraries
source $TOP_DIR/lib/infra
source $TOP_DIR/lib/oslo
source $TOP_DIR/lib/lvm
source $TOP_DIR/lib/horizon
source $TOP_DIR/lib/keystone
source $TOP_DIR/lib/glance
source $TOP_DIR/lib/nova
source $TOP_DIR/lib/placement
source $TOP_DIR/lib/cinder
source $TOP_DIR/lib/swift
source $TOP_DIR/lib/heat
source $TOP_DIR/lib/neutron
source $TOP_DIR/lib/neutron-legacy
source $TOP_DIR/lib/ldap
source $TOP_DIR/lib/dstat
source $TOP_DIR/lib/dlm
# Extras Source
# --------------
# Phase: source
if [[ -d $TOP_DIR/extras.d ]]; then
for i in $TOP_DIR/extras.d/*.sh; do
[[ -r $i ]] && source $i source
done
fi
load_plugin_settings
# Determine what system we are running on. This provides ``os_VENDOR``,
# ``os_RELEASE``, ``os_PACKAGE``, ``os_CODENAME``
GetOSVersion
set -o xtrace
# Run extras
# ==========
# Phase: unstack
run_phase unstack
if [[ "$Q_USE_DEBUG_COMMAND" == "True" ]]; then
source $TOP_DIR/openrc
teardown_neutron_debug
fi
# Call service stop
if is_service_enabled heat; then
stop_heat
fi
if is_service_enabled nova; then
stop_nova
fi
if is_service_enabled placement; then
stop_placement
fi
if is_service_enabled glance; then
stop_glance
fi
if is_service_enabled keystone; then
stop_keystone
fi
# Swift runs daemons
if is_service_enabled s-proxy; then
stop_swift
cleanup_swift
fi
# Apache has the WSGI processes
if is_service_enabled horizon; then
stop_horizon
fi
# Kill TLS proxies and cleanup certificates
if is_service_enabled tls-proxy; then
stop_tls_proxy
cleanup_CA
fi
if [ "$USE_SSL" == "True" ]; then
cleanup_CA
fi
SCSI_PERSIST_DIR=$CINDER_STATE_PATH/volumes/*
# BUG: tgt likes to exit 1 on service stop if everything isn't
# perfect, we should clean up cinder stop paths.
# Get the iSCSI volumes
if is_service_enabled cinder; then
stop_cinder || /bin/true
cleanup_cinder || /bin/true
fi
if [[ -n "$UNSTACK_ALL" ]]; then
# Stop MySQL server
if is_service_enabled mysql; then
stop_service mysql
fi
if is_service_enabled postgresql; then
stop_service postgresql
fi
# Stop rabbitmq-server
if is_service_enabled rabbit; then
stop_service rabbitmq-server
fi
fi
if is_service_enabled neutron; then
stop_neutron
cleanup_neutron
fi
if is_service_enabled dstat; then
stop_dstat
fi
# Clean up the remainder of the screen processes
SCREEN=$(which screen)
if [[ -n "$SCREEN" ]]; then
SESSION=$(screen -ls | awk "/[0-9]+.${SCREEN_NAME}/"'{ print $1 }')
if [[ -n "$SESSION" ]]; then
screen -X -S $SESSION quit
fi
fi
# NOTE: Cinder automatically installs the lvm2 package, independently of the
# enabled backends. So if Cinder is enabled, and installed successfully we are
# sure lvm2 (lvremove, /etc/lvm/lvm.conf, etc.) is here.
if is_service_enabled cinder && is_package_installed lvm2; then
# Using /bin/true here indicates a BUG - maybe the
# DEFAULT_VOLUME_GROUP_NAME doesn't exist? We should
# isolate this further down in lib/cinder cleanup.
clean_lvm_volume_group $DEFAULT_VOLUME_GROUP_NAME || /bin/true
clean_lvm_filter
fi