Delete openstack instance stuck in error state

delete-stuck-openstack-instance.sh

#!/usr/bin/env bash
# 
# Delete RHOS instance stuck in error state
#

set -e

# prompt for instance ID to delete

printf "\n"
printf 'Enter one instance ID to delete:'
printf "\n"
  read -r instance
        
if [ "$instance" == n ] ; then
    exit

else

# here we go!
printf '\n'
printf 'Deleting instance %s' $instance
printf '\n'

# reset instance state
nova reset-state --active "$instance"

# get port and trunk info
port="$(openstack port show $(openstack port list --server "$instance" -f value -c ID) -f value -c id)"

trunk="$(openstack port show $(openstack port list --server "$instance" -f value -c ID) -f value -c trunk_details | awk '{print $2}' | cut -c4-38)"

# unbind port
neutron port-update "$port" --device_owner "" --device_id "" --binding:host-id "" || true

# delete the instance
openstack server delete "$instance"

printf '\n'
printf 'Deleting trunk and port if applicable. Ignore errors if no trunk'
printf '\n'

# delete the trunk and port
openstack network trunk delete "$trunk" || true

openstack port delete "$port" || true

printf '\n'
printf 'Done!'
printf '\n'

fi