backup-vms

#!/usr/bin/python
import subprocess
import sys
import time
import smtplib

#we are basing the week number off the epoch to avoid overlapping weeks on the new year
week = str(int(time.time() / (3600*24*7)) % 4)

uuids = []
labels = []
errors = []
successes = []
#first get all the uuids
procuuid = subprocess.Popen(['xe', 'vm-list', 'is-control-domain=false'],stdout=subprocess.PIPE)
for line in procuuid.stdout:
    if 'uuid' in line:
        uuids.append(line.split(':').pop().strip())
    if 'name-label' in line:
        labels.append(line.split(':').pop().strip())

#now backup each uuid
for i, uuid in enumerate(uuids):
    #uncomment and modify to backup a single vm
    #if not 'u1sb' in labels[i]:
    #    break
    #else:
    #    print labels[i]
    #create snapshot
    procsnapshot = subprocess.Popen(['xe', 'vm-snapshot', 'uuid=' + uuids[i], 'new-name-label=backup-' + labels[i]],stdout=subprocess.PIPE)
    suuid = procsnapshot.stdout.readline().strip()
    #create template
    proctemplate = subprocess.Popen(['xe', 'template-param-set', 'is-a-template=false', 'ha-always-run=false', 'uuid='+suuid])
    #remove previous xva file
    removexva = subprocess.Popen(['rm','-rf','/media/backupdrive/'+week+'/'+labels[i]+'.xva'])
    #export template
    procexporttemplate = subprocess.Popen(['xe', 'vm-export', 'vm='+suuid, 'filename=/media/backupdrive/'+week+'/'+labels[i]+'.xva'],stdout=subprocess.PIPE)
    result = procexporttemplate.stdout.readline().strip()
    #make sure it says 'Export succeeded'
    if not 'Export succeeded' in result:
        errors.append(uuids[i] + ': ' + labels[i])
    else:
        successes.append(uuids[i] + ': ' + labels[i])
    #delete the snapshot
    procdelsnapshot = subprocess.Popen(['xe', 'vm-uninstall', 'uuid='+suuid, 'force=true'])

#send an email with details of backup
msg = "From: backup@pelagodesign.com\r\n"
msg = msg + "To: backup@pelagodesign.com\r\n"
msg = msg + "Subject: VM Backup Results\r\n"
msg = msg + "\r\n"
msg = msg + "Backed up the following VMs:\n"
msg = msg + "\n".join(successes)+"\n"
if len(errors):
    msg = msg + "ERROR: The following VMs did not get backed up:\n"
    msg = msg + "\n".join(errors)+"\n"

server = smtplib.SMTP('192.168.1.42')
server.sendmail("backup@pelagodesign.com", "backup@pelagodesign.com", msg)
server.quit()