devstack/exercises/volumes.sh
Vishvananda Ishaya 854d8c93b8 Add a helper method to volumes test to get fields
* The way we retrieve data from cli output is janky, this
   improves it slightly by creating a helper method.

Change-Id: Ib0889fd56f6a78bed85dad4c5e9e6e34bac9fb0d
2012-02-28 01:15:57 +00:00

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#!/usr/bin/env bash
# Test nova volumes with the nova command from python-novaclient
# 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
# ========
# Use openrc + stackrc + localrc for settings
pushd $(cd $(dirname "$0")/.. && pwd)
source ./openrc
popd
# Max time to wait while vm goes from build to active state
ACTIVE_TIMEOUT=${ACTIVE_TIMEOUT:-30}
# Max time till the vm is bootable
BOOT_TIMEOUT=${BOOT_TIMEOUT:-30}
# Max time to wait for proper association and dis-association.
ASSOCIATE_TIMEOUT=${ASSOCIATE_TIMEOUT:-15}
# 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}
# 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 -f index
# Grab the id of the image to launch
IMAGE=`glance -f index | egrep $DEFAULT_IMAGE_NAME | head -1 | cut -d" " -f1`
# determinine instance type
# -------------------------
# Helper function to grab a numbered field from python novaclient cli result
# Fields are numbered starting with 1
# Reverse syntax is supported: -1 is the last field, -2 is second to last, etc.
function get_field () {
while read data
do
if [ "$1" -lt 0 ]; then
field="(\$(NF$1))"
else
field="\$$(($1 + 1))"
fi
echo "$data" | awk -F'[ \t]*\\|[ \t]*' "{print $field}"
done
}
# 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="myserver"
VM_UUID=`nova boot --flavor $INSTANCE_TYPE --image $IMAGE $NAME --security_groups=$SECGROUP | grep ' id ' | get_field 2`
# 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 $VM_UUID | grep "private network" | get_field 2`
# for single node deployments, we can ping private ips
MULTI_HOST=${MULTI_HOST:-0}
if [ "$MULTI_HOST" = "0" ]; 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 ! 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`
# Attach to server
DEVICE=/dev/vdb
nova volume-attach $VM_UUID $VOL_ID $DEVICE
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 $VOL_NAME | head -1 | get_field -1`
if [[ "$VOL_ATTACH" != $VM_UUID ]]; then
echo "Volume not attached to correct instance"
exit 1
fi
# Detach volume
nova volume-detach $VM_UUID $VOL_ID
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
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 $NAME