client.py

#!/usr/bin/env python

import sys
import os
import hashlib
from contextlib import closing
import argparse

import requests
from keystoneclient.v2_0.client import Client


parser = argparse.ArgumentParser(description='Glance image downloader.')
parser.add_argument('image_id', help="The id of the image to download.")
parser.add_argument('--sha', default='foo', help="The expected checksum of the downloaded image.")
parser.add_argument('--token', default=None, help="The keystone token to use. If none provided, one will be requestsed.")
args = parser.parse_args()
image_id = args.image_id
image_url = "https://<glanceserver>:9292/v1/images/%s" % image_id

expected_sha = args.sha

image_location = '/root/imgdownload/%s.image'
user = os.getenv("OS_USERNAME")
password = os.getenv("OS_PASSWORD")
tenant = os.getenv("OS_TENANT_NAME")
auth_url =  os.getenv("OS_AUTH_URL")

token = args.token
if token is None:
    print 'Initialized.\nGetting token'
    keystone_client = Client(username=user,
                             password=password,
                             tenant_name=tenant,
                             auth_url=auth_url)
    auth_token = keystone_client.auth_ref['token']['id']
    print 'Got token %s' % auth_token
else:
    print 'Using provided token: %s' % token
    auth_token = token

headers = {'X-Auth-Token': auth_token,
           'Content-Type': 'application/json',
           'Accept': 'application/json' }

file_loc = image_location % image_id
print 'File will be written to %s' % file_loc
print "Beginning download: %s" % image_url
print "File won't begin streaming until after a Response code is outputted."

with open(file_loc, 'wb') as f:
    r = requests.get(image_url, verify=True, stream=True, headers=headers)
    print 'Response code: %s' % r.status_code
    with closing(r) as resp:
        #s = hashlib.new("md5")
        b = 0
        for data in resp.iter_content(chunk_size=65535):
            f.write(data)
            f.flush()
            #s.update(data)
            b += len(data)
    
    print("Read %s bytes" % b)
     
#    if expected_sha and s.hexdigest() != expected_sha:
#        print("Hash difference %s" % (s.hexdigest()))
#        sys.exit(1)

multi-img-download-newclient.sh

#!/bin/bash

#constant
dlfolder="/root/imgdownload/"
authtoken="8c3300f036164760bce2fbfc9fdc8953"
mkdir -p $dlfolder

if [ $# -eq 0 ]
then
    echo "You must list all the image uuid's that you want to download."
    echo "Also this script assumes that you have bash environment varriables set IE keystonerc_admin to let you use the nova command directly"
    echo "Usage: ./multi-img-download-newclient.sh <first_image_uuid> <second_image_uuid> <third_image_uuid>"
fi

function downloadimage() {
 local image=$1
 ( python /root/client.py $image --token $authtoken) &
}

for i in $*
do
    downloadimage $i
done

multi-img-download.sh

#!/bin/bash

#constants:
dlfolder="/root/imgdownload/"

mkdir -p $dlfolder

if [ $# -eq 0 ]
then
    echo "You must list all the image uuid's that you want to download."
    echo "Also this script assumes that you have bash environment varriables set IE keystonerc_admin to let you use the glance command directly"
    echo "Usage: ./multi-img-download.sh <first_image_uuid> <second_image_uuid> <third_image_uuid>"
fi

function downloadimage() {
 local image=$1
 ( glance image-download $image > $dlfolder$image.qcow2 ) &
}

for i in $*
do
    downloadimage $i
done

multiboot.sh

#!/bin/bash

#constants:
flavor="4" #nova flavor-list
network="2d5fe344-4e98-4ccc-8c91-b8064d17c64c" #nova network-list
availabilityzone="glbt1-dev" #nova availability-zone-list
host="g1dlgenlab06.dev.glbt1.gdg"  #nova hypervisor-list
vmbase_name="multimgtst"

if [ $# -eq 0 ]
then
	echo "You must list all the image uuid's that you want to boot."
	echo "You should also edit this script to set the constants to match your evironment"
	echo "Also this script assumes that you have bash environment varriables set IE keystonerc_admin to let you use the nova command directly"
	echo "Usage: ./multiboot.sh <first_image_uuid> <second_image_uuid> <third_image_uuid>"
fi

function bootvm() {
 local vmname=$2
 local image=$1
 nova boot --flavor $flavor --image $image --nic net-id=$network --availability_zone $availabilityzone:$host $vmname
}

iterator=1
for i in $*
do
	bootvm $i $vmbase_name$iterator 
	(( iterator += 1 ))
done