Nova Volume Mount Error Reproduction

volumes.sh

#!/bin/bash

COUNT=2
PREFIX=dup

function openstack {
  docker run \
    -e http_proxy= \
    -e https_proxy= \
    -e no_proxy= \
    -e "OS_AUTH_URL=$OS_AUTH_URL" \
    -e "OS_IDENTITY_API_VERSION=3" \
    -e "OS_REGION_NAME=$OS_REGION_NAME" \
    -e "OS_PROJECT_ID=$OS_PROJECT_ID" \
    -e "OS_PROJECT_NAME=$OS_PROJECT_NAME" \
    -e "OS_PROJECT_DOMAIN_NAME=$OS_PROJECT_DOMAIN_NAME" \
    -e "OS_USER_ID=$OS_USER_ID" \
    -e "OS_USERNAME=$OS_USERNAME" \
    -e "OS_USER_DOMAIN_NAME=$OS_PROJECT_DOMAIN_NAME" \
    -e "OS_PASSWORD=$OS_PASSWORD" \
    hub.global.cloud.sap/monsoon/cc-openstack-cli:latest -- openstack "$@"
}

function create_volumes {
  for i in $(seq 1 $COUNT)
  do
    echo Creating volume $PREFIX$i
    openstack volume create --size=1 $PREFIX$i &
  done
  wait
}

function delete_volumes {
  volumes=$(filter_volumes available)
  for volume in $volumes
  do
    echo Deleting $volume
    openstack volume delete $volume &
  done
  wait
}

function attach_volumes {
  server=$(openstack server list  --limit 1 -f value -c ID)
  volumes=$(filter_volumes available)
  for volume in $volumes
  do
    echo Attaching $volume to $server
    openstack server add volume $server $volume &
  done
  wait
}

function detach_volumes {
  server=$(openstack server list  --limit 1 -f value -c ID)
  volumes=$(filter_volumes in-use)
  for volume in $volumes
  do
    echo Detaching $volume from $server
    openstack server remove volume $server $volume &
  done
  wait
}

function filter_volumes {
  status=$1
  openstack volume list -c ID -c Status -f value | grep $status | cut -f 1 -d " "
}

function wait_for_volumes_to_be {
  volumes=$(filter_volumes $1 | wc -l)
  total=$(openstack volume list -f value | wc -l)
  while [ $volumes -lt $total ]
  do
    echo "Waiting for all volumes to be $1 ($volumes/$total)"
    sleep 1
    volumes=$(filter_volumes $1 | wc -l)
  done
}

# create_volumes
# wait_for_volumes_to_be available
attach_volumes
wait_for_volumes_to_be in-use
detach_volumes
wait_for_volumes_to_be available
delete_volumes