#!/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
 # ==================
 

 # Determine what system we are running on.  This provides ``os_VENDOR``,
 # ``os_RELEASE``, ``os_PACKAGE``, ``os_CODENAME`` and ``DISTRO``
 GetDistro
 

 # 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/neutron

 source $TOP_DIR/lib/ldap

 source $TOP_DIR/lib/dstat

 source $TOP_DIR/lib/etcd3

 # 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
 

 set -o xtrace
 

 # Run extras
 # ==========
 

 # Phase: unstack

 run_phase unstack

 # Call service stop
 
 if is_service_enabled nova; then
     stop_nova

     cleanup_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
 

 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 etcd3; then
     stop_etcd3
     cleanup_etcd3
 fi
 

 if is_service_enabled dstat; then
     stop_dstat
 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