Added script to upload slapos upgrade information to shacache

upload-update.py

+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+# Copyright (c) 2012 Vifib SARL and Contributors.
+# All Rights Reserved.
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsibility of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# guarantees and support are strongly advised to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 3
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+##############################################################################
+
+import ConfigParser
+import datetime
+from slapos.networkcachehelper import helper_upload_network_cached_from_file
+from optparse import OptionParser, Option
+import sys
+import time
+
+
+class Parser(OptionParser):
+  """
+  Parse all arguments.
+  """
+  def __init__(self, usage=None, version=None):
+    """
+    Initialize all options possibles.
+    """
+    OptionParser.__init__(self, usage=usage, version=version,
+                      option_list=[
+        Option("--upgrade-file",
+               default='/etc/slapos-cache/slapos-upgrade',
+               help="File use as reference to upgrade."),
+        Option("-u","--upgrade",
+               default=False,
+               action="store_true",
+               help="If selected will update tomorrow."),
+        Option("-r","--reboot",
+               default=False,
+               action="store_true",
+               help="If selected will reboot tomorrow."),
+        Option("-n", "--dry-run",
+               help="Simulate the execution steps",
+               default=False,
+               action="store_true"),
+        ])
+
+
+  def check_args(self):
+    """
+    Check arguments
+    """
+    (options, args) = self.parse_args()
+    return options
+
+
+
+# Utility fonction to get yes/no answers
+def get_yes_no (prompt):
+  while True:
+    answer=raw_input( prompt + " [y,n]: " )
+    if answer.upper() in [ 'Y','YES' ]: return True
+    if answer.upper() in [ 'N', 'NO' ]: return False
+
+
+
+def upload_network_cached_from_file(path, networkcache_options):
+  """
+  Creates uploads repository to cache.
+  """
+  print 'Uploading update'
+  # XXX create a file descriptor from string. (simplest way: create tmpfile and write)
+
+  metadata_dict = {
+    # XXX: we set date from client side. It can be potentially dangerous
+    # as it can be badly configured.
+    'timestamp':time.time(),
+  }
+  try:
+    helper_upload_network_cached_from_file(
+      path=path,
+      directory_key='slapos-upgrade',
+      metadata_dict=metadata_dict,
+      # Then we give a lot of not interesting things
+      dir_url=networkcache_options.get('upload-dir-url'),
+      cache_url=networkcache_options.get('upload-cache-url'),
+      signature_private_key_file=networkcache_options.get(
+        'signature_private_key_file'),
+      shacache_cert_file=networkcache_options.get('shacache-cert-file'),
+      shacache_key_file=networkcache_options.get('shacache-key-file'),
+      shadir_cert_file=networkcache_options.get('shadir-cert-file'),
+      shadir_key_file=networkcache_options.get('shadir-key-file'),
+    )
+    print 'Uploaded git repository to cache.'
+  except Exception:
+    print 'Unable to upload to cache:\n%s.' % traceback.format_exc()
+
+def save_current_state(current_state,config):
+  """
+  Will save ConfigParser to config file
+  """
+  file = open(config.upgrade_file,"w")
+  current_state.write(file)
+  file.close()
+
+# Class containing all parameters needed for configuration
+class Config:
+  def setConfig(self, option_dict):
+    """
+    Set options given by parameters.
+    """
+    # Set options parameters
+    for option, value in option_dict.__dict__.items():
+      setattr(self, option, value)
+
+    self.today = datetime.date.today()
+    self.tomorrow = self.today + datetime.timedelta(days=1)
+
+
+def new_upgrade (config):
+  upgrade_info = ConfigParser.RawConfigParser()
+  upgrade_info.read(config.upgrade_file)
+  if config.reboot :
+    upgrade_info.set('system','reboot',config.tomorrow)
+  if config.upgrade :
+    upgrade_info.set('system','upgrade',config.tomorrow)
+  save_current_state(upgrade_info,config)  
+  print " You will update this :"
+  print open(config.upgrade_file,'r').read()
+  if not get_yes_no("Do you want to continue? "):
+    sys.exit(0)
+
+  networkcache_info = ConfigParser.RawConfigParser()
+  networkcache_info.read('/etc/slapos-cache/slapos.cfg')
+  networkcache_info_dict = dict(networkcache_info.items('networkcache'))
+  if not config.dry_run:
+    upload_network_cached_from_file(config.upgrade_file,networkcache_info_dict)
+
+
+
+def main():
+  """Upload file to update computer and slapos"""
+  usage = "usage: [options] "
+  # Parse arguments
+  config = Config()
+  config.setConfig(Parser(usage=usage).check_args())
+  new_upgrade(config)
+  sys.exit()
+
+
+
+if __name__ == '__main__':
+  main ()