Add volume.sh exercise

Change-Id: Ic339c34c85493d21f9fbf5280bb5ff1660644f98

exercises/volumes.sh

@@ -0,0 +1,160 @@
+#!/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 "$0")/.. && pwd)
+source ./openrc
+popd
+
+# Get a token for clients that don't support service catalog
+# ==========================================================
+
+# manually create a token by querying keystone (sending JSON data).  Keystone
+# returns a token and catalog of endpoints.  We use python to parse the token
+# and save it.
+
+TOKEN=`curl -s -d  "{\"auth\":{\"passwordCredentials\": {\"username\": \"$NOVA_USERNAME\", \"password\": \"$NOVA_PASSWORD\"}}}" -H "Content-type: application/json" http://$HOST_IP:5000/v2.0/tokens | python -c "import sys; import json; tok = json.loads(sys.stdin.read()); print tok['access']['token']['id'];"`
+
+# 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 -A $TOKEN index
+
+# Let's grab the id of the first AMI image to launch
+IMAGE=`glance -A $TOKEN index | egrep ami | head -1 | cut -d" " -f1`
+
+# determinine instance type
+# -------------------------
+
+# List of instance types:
+nova flavor-list
+
+INSTANCE_NAME=${DEFAULT_INSTANCE_TYPE:-m1.tiny}
+INSTANCE_TYPE=`nova flavor-list | grep $INSTANCE_NAME | cut -d"|" -f2`
+if [[ -z "`nova flavor-list | grep $INSTANCE_NAME | cut -d"|" -f2`" ]]; then
+    # and grab the first flavor in the list to launch
+   INSTANCE_TYPE=`nova flavor-list | head -n 4 | tail -n 1 | cut -d"|" -f2`
+fi
+
+NAME="myserver"
+
+VM_UUID=`nova boot --flavor $INSTANCE_TYPE --image $IMAGE $NAME --security_groups=$SECGROUP | grep ' id ' | cut -d"|" -f3 | sed 's/ //g'`
+
+# 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
+# ----------------
+
+# 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:-15}
+
+# Max time to wait for proper association and dis-association.
+ASSOCIATE_TIMEOUT=${ASSOCIATE_TIMEOUT:-10}
+
+# check that the status is active within ACTIVE_TIMEOUT seconds
+if ! timeout $BOOT_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" | cut -d"|" -f3`
+#VM_UUID=`nova list | grep $NAME | head -1 | cut -d'|' -f2 | sed 's/ //g'`
+
+# for single node deployments, we can ping private ips
+MULTI_HOST=${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 | cut -d'|' -f3 | sed 's/ //g'`" ]]; 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 | cut -d'|' -f2 | sed 's/ //g'`
+
+# 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 $VOL_NAME | head -1 | cut -d'|' -f6 | sed 's/ //g'`
+if [[ "$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