#!/usr/bin/env bash # **volumes.sh** # Test nova volumes with the nova command from python-novaclient echo "*********************************************************************" echo "Begin DevStack Exercise: $0" echo "*********************************************************************" # This script exits on an error so that errors don't compound and you see # only the first error that occured. set -o errexit # Print the commands being run so that we can see the command that triggers # an error. It is also useful for following allowing as the install occurs. set -o xtrace # Settings # ======== # Keep track of the current directory EXERCISE_DIR=$(cd $(dirname "$0") && pwd) TOP_DIR=$(cd $EXERCISE_DIR/..; pwd) # Import common functions source $TOP_DIR/functions # Import configuration source $TOP_DIR/openrc # Import exercise configuration source $TOP_DIR/exerciserc # If cinder or n-vol are not enabled we exit with exitcode 55 which mean # exercise is skipped. is_service_enabled cinder n-vol || exit 55 # Instance type to create DEFAULT_INSTANCE_TYPE=${DEFAULT_INSTANCE_TYPE:-m1.tiny} # Boot this image, use first AMi image if unset DEFAULT_IMAGE_NAME=${DEFAULT_IMAGE_NAME:-ami} # Security group name SECGROUP=${SECGROUP:-vol_secgroup} # Launching a server # ================== # List servers for tenant: nova list # Images # ------ # Nova has a **deprecated** way of listing images. nova image-list # But we recommend using glance directly glance image-list # Grab the id of the image to launch IMAGE=$(glance image-list | egrep " $DEFAULT_IMAGE_NAME " | get_field 1) # Security Groups # --------------- # List of secgroups: nova secgroup-list # Create a secgroup if ! nova secgroup-list | grep -q $SECGROUP; then nova secgroup-create $SECGROUP "$SECGROUP description" if ! timeout $ASSOCIATE_TIMEOUT sh -c "while ! nova secgroup-list | grep -q $SECGROUP; do sleep 1; done"; then echo "Security group not created" exit 1 fi fi # Configure Security Group Rules nova secgroup-add-rule $SECGROUP icmp -1 -1 0.0.0.0/0 nova secgroup-add-rule $SECGROUP tcp 22 22 0.0.0.0/0 # determinine instance type # ------------------------- # List of instance types: nova flavor-list INSTANCE_TYPE=`nova flavor-list | grep $DEFAULT_INSTANCE_TYPE | get_field 1` if [[ -z "$INSTANCE_TYPE" ]]; then # grab the first flavor in the list to launch if default doesn't exist INSTANCE_TYPE=`nova flavor-list | head -n 4 | tail -n 1 | get_field 1` fi NAME="ex-vol" VM_UUID=`nova boot --flavor $INSTANCE_TYPE --image $IMAGE $NAME --security_groups=$SECGROUP | grep ' id ' | get_field 2` die_if_not_set VM_UUID "Failure launching $NAME" # Testing # ======= # First check if it spins up (becomes active and responds to ping on # internal ip). If you run this script from a nova node, you should # bypass security groups and have direct access to the server. # Waiting for boot # ---------------- # check that the status is active within ACTIVE_TIMEOUT seconds if ! timeout $ACTIVE_TIMEOUT sh -c "while ! nova show $VM_UUID | grep status | grep -q ACTIVE; do sleep 1; done"; then echo "server didn't become active!" exit 1 fi # get the IP of the server IP=`nova show $VM_UUID | grep "private network" | get_field 2` die_if_not_set IP "Failure retrieving IP address" # for single node deployments, we can ping private ips MULTI_HOST=`trueorfalse False $MULTI_HOST` if [ "$MULTI_HOST" = "False" ]; then # sometimes the first ping fails (10 seconds isn't enough time for the VM's # network to respond?), so let's ping for a default of 15 seconds with a # timeout of a second for each ping. if ! timeout $BOOT_TIMEOUT sh -c "while ! ping -c1 -w1 $IP; do sleep 1; done"; then echo "Couldn't ping server" exit 1 fi else # On a multi-host system, without vm net access, do a sleep to wait for the boot sleep $BOOT_TIMEOUT fi # Volumes # ------- VOL_NAME="myvol-$(openssl rand -hex 4)" # Verify it doesn't exist if [[ -n "`nova volume-list | grep $VOL_NAME | head -1 | get_field 2`" ]]; then echo "Volume $VOL_NAME already exists" exit 1 fi # Create a new volume nova volume-create --display_name $VOL_NAME --display_description "test volume: $VOL_NAME" 1 if [[ $? != 0 ]]; then echo "Failure creating volume $VOL_NAME" exit 1 fi if ! timeout $ACTIVE_TIMEOUT sh -c "while ! nova volume-list | grep $VOL_NAME | grep available; do sleep 1; done"; then echo "Volume $VOL_NAME not created" exit 1 fi # Get volume ID VOL_ID=`nova volume-list | grep $VOL_NAME | head -1 | get_field 1` die_if_not_set VOL_ID "Failure retrieving volume ID for $VOL_NAME" # Attach to server DEVICE=/dev/vdb nova volume-attach $VM_UUID $VOL_ID $DEVICE || \ die "Failure attaching volume $VOL_NAME to $NAME" if ! timeout $ACTIVE_TIMEOUT sh -c "while ! nova volume-list | grep $VOL_NAME | grep in-use; do sleep 1; done"; then echo "Volume $VOL_NAME not attached to $NAME" exit 1 fi VOL_ATTACH=`nova volume-list | grep $VOL_NAME | head -1 | get_field -1` die_if_not_set VOL_ATTACH "Failure retrieving $VOL_NAME status" if [[ "$VOL_ATTACH" != $VM_UUID ]]; then echo "Volume not attached to correct instance" exit 1 fi # Detach volume nova volume-detach $VM_UUID $VOL_ID || die "Failure detaching volume $VOL_NAME from $NAME" if ! timeout $ACTIVE_TIMEOUT sh -c "while ! nova volume-list | grep $VOL_NAME | grep available; do sleep 1; done"; then echo "Volume $VOL_NAME not detached from $NAME" exit 1 fi # Delete volume nova volume-delete $VOL_ID || die "Failure deleting volume $VOL_NAME" if ! timeout $ACTIVE_TIMEOUT sh -c "while ! nova volume-list | grep $VOL_NAME; do sleep 1; done"; then echo "Volume $VOL_NAME not deleted" exit 1 fi # Shutdown the server nova delete $VM_UUID || die "Failure deleting instance $NAME" # Wait for termination if ! timeout $TERMINATE_TIMEOUT sh -c "while nova list | grep -q $VM_UUID; do sleep 1; done"; then echo "Server $NAME not deleted" exit 1 fi # Delete a secgroup nova secgroup-delete $SECGROUP || die "Failure deleting security group $SECGROUP" set +o xtrace echo "*********************************************************************" echo "SUCCESS: End DevStack Exercise: $0" echo "*********************************************************************"