wizard/command/mass_upgrade.py

   1 import optparse
   2 import logging
   3 import os
   4 import os.path
   5 import pwd
   6 import hashlib
   7 import errno
   8 import time
   9 import itertools
  10 import sys
  11
  12 import wizard
  13 from wizard import deploy, util, scripts, shell, sset, command
  14
  15 def main(argv, baton):
  16     options, args = parse_args(argv, baton)
  17     app = args[0]
  18     base_args = calculate_base_args(options)
  19     sh = shell.ParallelShell.make(options.no_parallelize, options.max_processes)
  20     command.create_logdir(options.log_dir)
  21     seen = sset.make(options.seen)
  22     is_root = not os.getuid()
  23     report = command.open_reports(options.log_dir, ('lookup', 'warnings', 'errors'), options.redo, ('merge', 'verify'))
  24     # loop stuff
  25     errors = {}
  26     i = 0
  27     fails = {
  28             "merge": 0,
  29             "verify": 0,
  30         }
  31     deploys = deploy.parse_install_lines(app, options.versions_path, user=options.user)
  32     requested_deploys = itertools.islice(deploys, options.limit)
  33     try:
  34         for i, d in enumerate(requested_deploys, 1):
  35             report.lookup.write("%04d %s\n" % (i, d.location))
  36             # check if we want to punt due to --limit
  37             if d.location in seen:
  38                 continue
  39             if i in report.skip:
  40                 continue
  41             if is_root and not command.security_check_homedir(d.location):
  42                 continue
  43             # XXX: we may be able to punt based on detected versions from d, which
  44             # would be faster than spinning up a new process. On the other hand,
  45             # `seen` makes this mostly not a problem
  46             logging.info("[%04d] Processing %s" % (i, d.location))
  47             child_args = list(base_args)
  48             # calculate the log file, if a log dir was specified
  49             if options.log_dir:
  50                 log_file = command.calculate_log_name(options.log_dir, i)
  51                 child_args.append("--log-file=" + log_file)
  52             # actual meat
  53             def make_on_pair(d, i):
  54                 # we need to make another stack frame so that d and i get specific bindings.
  55                 def on_success(stdout, stderr):
  56                     if stderr:
  57                         report.lookup.write("[%04d] %s\n" % (i, d.location))
  58                         logging.warning("[%04d] Warnings at [%s]:\n%s" % (i, d.location, stderr))
  59                     seen.add(d.location)
  60                 def on_error(e):
  61                     if e.name == "AlreadyUpgraded":
  62                         seen.add(d.location)
  63                         logging.info("[%04d] Skipped already upgraded %s" % (i, d.location))
  64                     elif e.name == "MergeFailed":
  65                         seen.add(d.location)
  66                         conflicts, _, tmpdir = e.stdout.rstrip().partition(" ")
  67                         logging.warning("[%04d] Conflicts in %d files: resolve at [%s], source at [%s]" % (i, int(conflicts), tmpdir, d.location))
  68                         report.merge.write("[%04d] %s %d %s\n" % (i, tmpdir, int(conflicts), d.location))
  69                         fails['merge'] += 1
  70                     else:
  71                         name = e.name
  72                         if name == "WebVerificationError":
  73                             try:
  74                                 host, path = scripts.get_web_host_and_path(d.location)
  75                                 url = "http://%s%s" % (host, path)
  76                             except ValueError:
  77                                 url = d.location
  78                             # This should actually be a warning, but
  79                             # it's a really common error
  80                             logging.info("[%04d] Could not verify application at %s" % (i, url))
  81                             report.verify.write("[%04d] %s\n" % (i, url))
  82                             fails['verify'] += 1
  83                         else:
  84                             if name not in errors: errors[name] = []
  85                             errors[name].append(d)
  86                             msg = "[%04d] %s in %s" % (i, name, d.location)
  87                             logging.error(msg)
  88                             report.errors.write(msg + "\n")
  89                 return (on_success, on_error)
  90             on_success, on_error = make_on_pair(d, i)
  91             sh.call("wizard", "upgrade", d.location, *child_args,
  92                           on_success=on_success, on_error=on_error)
  93         sh.join()
  94     finally:
  95         sys.stderr.write("\n")
  96         for name, deploys in errors.items():
  97             logging.warning("%s from %d installs" % (name, len(deploys)))
  98         def printPercent(description, number, total):
  99             logging.warning("%d out of %d installs (%.1f%%) had %s" % (number, total, float(number)/total*100, description))
 100         if fails['merge']:
 101             printPercent("merge conflicts", fails['merge'], i)
 102         if fails['verify']:
 103             printPercent("web verification failure", fails['verify'], i)
 104
 105 def parse_args(argv, baton):
 106     usage = """usage: %prog mass-upgrade [ARGS] APPLICATION
 107
 108 Mass upgrades an application to the latest scripts version.
 109 Essentially equivalent to running '%prog upgrade' on all
 110 autoinstalls for a particular application found by parallel-find,
 111 but with advanced reporting.
 112
 113 This command is intended to be run as root on a server with
 114 the scripts AFS patch."""
 115     parser = command.WizardOptionParser(usage)
 116     baton.push(parser, "log_dir")
 117     baton.push(parser, "seen")
 118     baton.push(parser, "no_parallelize")
 119     baton.push(parser, "dry_run")
 120     baton.push(parser, "max_processes")
 121     baton.push(parser ,"limit")
 122     baton.push(parser, "versions_path")
 123     baton.push(parser, "srv_path")
 124     baton.push(parser, "user")
 125     parser.add_option("--force", dest="force", action="store_true",
 126             default=False, help="Force running upgrade even if it's already at latest version.")
 127     parser.add_option("--redo", dest="redo", action="store_true",
 128             default=False, help="Redo failed upgrades; use this if you updated Wizard's code.")
 129     options, args, = parser.parse_all(argv)
 130     if len(args) > 1:
 131         parser.error("too many arguments")
 132     elif not args:
 133         parser.error("must specify application to upgrade")
 134     return options, args
 135
 136 def calculate_base_args(options):
 137     return command.makeBaseArgs(options, dry_run="--dry-run", srv_path="--srv-path", force="--force")
 138