Clean up orphaned cloudfiles backups, from servers that no longer exist

go.py

#!/usr/bin/python

import pyrax
import subprocess
import time
import sys

username = sys.argv[1] # username
ddi = sys.argv[2] # ddi
api_key = sys.argv[3] # api key

# workaround to skip needing a ~/.pyrax
cls = pyrax.utils.import_class('pyrax.identity.rax_identity.RaxIdentity')
pyrax.identity = cls()

# Using direct method
pyrax.set_credentials(username, api_key)

# regions, servers, and nova API versions we care about
lServers = []
lRegions = ['IAD','DFW','ORD','SYD','HKG']
lVersions = ['v1.0', 'v2.0']

# can't use pyrax for 1st gen, so shell out :-(
# this is a very ugly way to do this, but it supports 1st gen.
cmd = "nova --os-auth-url  https://identity.api.rackspacecloud.com/%s/ --os-username %s --os-password %s --os-tenant-id %s --os-auth-system rackspace --os-region-name %s list | grep ACTIVE | awk '{print $2}' | xargs echo "

for v in lVersions:
  for r in lRegions:
    result = subprocess.Popen(['/bin/bash', '-c', cmd % (v, username, api_key, ddi, r)], stdout=subprocess.PIPE)
    output = result.stdout.read()
    serverIds = output.split()
    for sid in serverIds:
      lServers.append(sid)

# init cloudfiles object
cf = pyrax.cloudfiles

# find the container that keeps backups
cont = cf.get_container("cloudservers")

# search the container
lFilesToDelete = []
objects = cont.get_objects()
for o in objects:
  if "cloudserver" in o.name:
    veto = False

    # if any of our server IDs are inside the candidate filename, 
    # veto the file - don't delete
    for candidate_match in lServers:
      if candidate_match in o.name:
        veto = True

    if not veto:
      lFilesToDelete.append(o)

for f in lFilesToDelete:
  fname = f.name

  # skip files that don't get weekly or daily monikers, prob. not automatic RCBU
  if ('weekly' in f.name) or ('daily' in f.name):
    print fname # write the file, then try to delete it
    start = time.time()
    tries = 0
    cont.delete_object(fname) # this can take a long time, even before the loop
    while f:
      try:
          f = cont.get_object(fname)
          if(tries > 4):
            print "...giving up, after %4.2f seconds..." % (time.time() - start)
            f = None
          else:
            print "...still there, tries = %s..." % (tries)
            tries = tries + 1
            time.sleep(0.5)
      except Exception:
          f = None
          print "Object '%s' has been deleted, took %4.2f seconds" % (fname, time.time() - start)

  else:
    print "Not deleting %s" % f.name