Remove useless code in backend for network hooks
[ganeti-local] / tools / cfgupgrade
index 7ff09e5..bccb34e 100755 (executable)
@@ -1,7 +1,7 @@
 #!/usr/bin/python
 #
 
-# Copyright (C) 2007, 2008, 2009 Google Inc.
+# Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012 Google Inc.
 #
 # 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
@@ -32,7 +32,8 @@ import os.path
 import sys
 import optparse
 import logging
-import errno
+import time
+from cStringIO import StringIO
 
 from ganeti import constants
 from ganeti import serializer
@@ -40,33 +41,18 @@ from ganeti import utils
 from ganeti import cli
 from ganeti import bootstrap
 from ganeti import config
+from ganeti import netutils
+from ganeti import pathutils
 
 
 options = None
 args = None
 
-# Dictionary with instance old keys, and new hypervisor keys
-INST_HV_CHG = {
-  'hvm_pae': constants.HV_PAE,
-  'vnc_bind_address': constants.HV_VNC_BIND_ADDRESS,
-  'initrd_path': constants.HV_INITRD_PATH,
-  'hvm_nic_type': constants.HV_NIC_TYPE,
-  'kernel_path': constants.HV_KERNEL_PATH,
-  'hvm_acpi': constants.HV_ACPI,
-  'hvm_cdrom_image_path': constants.HV_CDROM_IMAGE_PATH,
-  'hvm_boot_order': constants.HV_BOOT_ORDER,
-  'hvm_disk_type': constants.HV_DISK_TYPE,
-  }
-
-# Instance beparams changes
-INST_BE_CHG = {
-  'vcpus': constants.BE_VCPUS,
-  'memory': constants.BE_MEMORY,
-  'auto_balance': constants.BE_AUTO_BALANCE,
-  }
-
-# Field names
-F_SERIAL = 'serial_no'
+
+#: Target major version we will upgrade to
+TARGET_MAJOR = 2
+#: Target minor version we will upgrade to
+TARGET_MINOR = 7
 
 
 class Error(Exception):
@@ -87,41 +73,90 @@ def SetupLogging():
   elif options.verbose:
     stderr_handler.setLevel(logging.INFO)
   else:
-    stderr_handler.setLevel(logging.CRITICAL)
+    stderr_handler.setLevel(logging.WARNING)
 
   root_logger = logging.getLogger("")
   root_logger.setLevel(logging.NOTSET)
   root_logger.addHandler(stderr_handler)
 
 
+def CheckHostname(path):
+  """Ensures hostname matches ssconf value.
+
+  @param path: Path to ssconf file
+
+  """
+  ssconf_master_node = utils.ReadOneLineFile(path)
+  hostname = netutils.GetHostname().name
+
+  if ssconf_master_node == hostname:
+    return True
+
+  logging.warning("Warning: ssconf says master node is '%s', but this"
+                  " machine's name is '%s'; this tool must be run on"
+                  " the master node", ssconf_master_node, hostname)
+  return False
+
+
+def UpgradeNetworks(config_data):
+  networks = config_data.get("networks", None)
+  if not networks:
+    config_data["networks"] = {}
+
+
+def UpgradeGroups(config_data):
+  for group in config_data["nodegroups"].values():
+    networks = group.get("networks", None)
+    if not networks:
+      group["networks"] = {}
+
+
 def main():
   """Main program.
 
   """
-  global options, args
-
-  program = os.path.basename(sys.argv[0])
+  global options, args # pylint: disable=W0603
 
   # Option parsing
   parser = optparse.OptionParser(usage="%prog [--debug|--verbose] [--force]")
-  parser.add_option('--dry-run', dest='dry_run',
+  parser.add_option("--dry-run", dest="dry_run",
                     action="store_true",
                     help="Try to do the conversion, but don't write"
                          " output file")
   parser.add_option(cli.FORCE_OPT)
   parser.add_option(cli.DEBUG_OPT)
   parser.add_option(cli.VERBOSE_OPT)
-  parser.add_option('--path', help="Convert configuration in this"
-                    " directory instead of '%s'" % constants.DATA_DIR,
-                    default=constants.DATA_DIR, dest="data_dir")
+  parser.add_option("--ignore-hostname", dest="ignore_hostname",
+                    action="store_true", default=False,
+                    help="Don't abort if hostname doesn't match")
+  parser.add_option("--path", help="Convert configuration in this"
+                    " directory instead of '%s'" % pathutils.DATA_DIR,
+                    default=pathutils.DATA_DIR, dest="data_dir")
+  parser.add_option("--confdir",
+                    help=("Use this directory instead of '%s'" %
+                          pathutils.CONF_DIR),
+                    default=pathutils.CONF_DIR, dest="conf_dir")
+  parser.add_option("--no-verify",
+                    help="Do not verify configuration after upgrade",
+                    action="store_true", dest="no_verify", default=False)
   (options, args) = parser.parse_args()
 
   # We need to keep filenames locally because they might be renamed between
   # versions.
+  options.data_dir = os.path.abspath(options.data_dir)
   options.CONFIG_DATA_PATH = options.data_dir + "/config.data"
   options.SERVER_PEM_PATH = options.data_dir + "/server.pem"
   options.KNOWN_HOSTS_PATH = options.data_dir + "/known_hosts"
   options.RAPI_CERT_FILE = options.data_dir + "/rapi.pem"
+  options.SPICE_CERT_FILE = options.data_dir + "/spice.pem"
+  options.SPICE_CACERT_FILE = options.data_dir + "/spice-ca.pem"
+  options.RAPI_USERS_FILE = options.data_dir + "/rapi/users"
+  options.RAPI_USERS_FILE_PRE24 = options.data_dir + "/rapi_users"
+  options.CONFD_HMAC_KEY = options.data_dir + "/hmac.key"
+  options.CDS_FILE = options.data_dir + "/cluster-domain-secret"
+  options.SSCONF_MASTER_NODE = options.data_dir + "/ssconf_master_node"
+  options.WATCHER_STATEFILE = options.data_dir + "/watcher.data"
+  options.FILE_STORAGE_PATHS_FILE = options.conf_dir + "/file-storage-paths"
 
   SetupLogging()
 
@@ -129,19 +164,29 @@ def main():
   if args:
     raise Error("No arguments expected")
 
+  # Check master name
+  if not (CheckHostname(options.SSCONF_MASTER_NODE) or options.ignore_hostname):
+    logging.error("Aborting due to hostname mismatch")
+    sys.exit(constants.EXIT_FAILURE)
+
   if not options.force:
-    usertext = ("%s MUST be run on the master node. Is this the master"
-                " node and are ALL instances down?" % program)
+    usertext = ("Please make sure you have read the upgrade notes for"
+                " Ganeti %s (available in the UPGRADE file and included"
+                " in other documentation formats). Continue with upgrading"
+                " configuration?" % constants.RELEASE_VERSION)
     if not cli.AskUser(usertext):
-      sys.exit(1)
+      sys.exit(constants.EXIT_FAILURE)
 
   # Check whether it's a Ganeti configuration directory
   if not (os.path.isfile(options.CONFIG_DATA_PATH) and
-          os.path.isfile(options.SERVER_PEM_PATH) or
+          os.path.isfile(options.SERVER_PEM_PATH) and
           os.path.isfile(options.KNOWN_HOSTS_PATH)):
-    raise Error(("%s does not seem to be a known Ganeti configuration"
+    raise Error(("%s does not seem to be a Ganeti configuration"
                  " directory") % options.data_dir)
 
+  if not os.path.isdir(options.conf_dir):
+    raise Error("Not a directory: %s" % options.conf_dir)
+
   config_data = serializer.LoadJson(utils.ReadFile(options.CONFIG_DATA_PATH))
 
   try:
@@ -159,6 +204,97 @@ def main():
     raise Error("Inconsistent configuration: found config_version in"
                 " configuration file")
 
+  # Upgrade from 2.{0..6} to 2.7
+  if config_major == 2 and config_minor in (0, 1, 2, 3, 4, 5, 6):
+    if config_revision != 0:
+      logging.warning("Config revision is %s, not 0", config_revision)
+
+    config_data["version"] = constants.BuildVersion(TARGET_MAJOR,
+                                                    TARGET_MINOR, 0)
+
+    if "instances" not in config_data:
+      raise Error("Can't find the 'instances' key in the configuration!")
+    for instance, iobj in config_data["instances"].items():
+      if "disks" not in iobj:
+        raise Error("Instance '%s' doesn't have a disks entry?!" % instance)
+      disks = iobj["disks"]
+      for idx, dobj in enumerate(disks):
+        expected = "disk/%s" % idx
+        current = dobj.get("iv_name", "")
+        if current != expected:
+          logging.warning("Updating iv_name for instance %s/disk %s"
+                          " from '%s' to '%s'",
+                          instance, idx, current, expected)
+          dobj["iv_name"] = expected
+
+  elif config_major == TARGET_MAJOR and config_minor == TARGET_MINOR:
+    logging.info("No changes necessary")
+
+  else:
+    raise Error("Configuration version %d.%d.%d not supported by this tool" %
+                (config_major, config_minor, config_revision))
+
+  if (os.path.isfile(options.RAPI_USERS_FILE_PRE24) and
+      not os.path.islink(options.RAPI_USERS_FILE_PRE24)):
+    if os.path.exists(options.RAPI_USERS_FILE):
+      raise Error("Found pre-2.4 RAPI users file at %s, but another file"
+                  " already exists at %s" %
+                  (options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE))
+    logging.info("Found pre-2.4 RAPI users file at %s, renaming to %s",
+                 options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE)
+    if not options.dry_run:
+      utils.RenameFile(options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE,
+                       mkdir=True, mkdir_mode=0750)
+
+  # Create a symlink for RAPI users file
+  if (not (os.path.islink(options.RAPI_USERS_FILE_PRE24) or
+           os.path.isfile(options.RAPI_USERS_FILE_PRE24)) and
+      os.path.isfile(options.RAPI_USERS_FILE)):
+    logging.info("Creating symlink from %s to %s",
+                 options.RAPI_USERS_FILE_PRE24, options.RAPI_USERS_FILE)
+    if not options.dry_run:
+      os.symlink(options.RAPI_USERS_FILE, options.RAPI_USERS_FILE_PRE24)
+
+  # Remove old watcher state file if it exists
+  if os.path.exists(options.WATCHER_STATEFILE):
+    logging.info("Removing watcher state file %s", options.WATCHER_STATEFILE)
+    if not options.dry_run:
+      utils.RemoveFile(options.WATCHER_STATEFILE)
+
+  # Write file storage paths
+  if not os.path.exists(options.FILE_STORAGE_PATHS_FILE):
+    cluster = config_data["cluster"]
+    file_storage_dir = cluster.get("file_storage_dir")
+    shared_file_storage_dir = cluster.get("shared_file_storage_dir")
+    del cluster
+
+    logging.info("Ganeti 2.7 and later only allow whitelisted directories"
+                 " for file storage; writing existing configuration values"
+                 " into '%s'",
+                 options.FILE_STORAGE_PATHS_FILE)
+
+    if file_storage_dir:
+      logging.info("File storage directory: %s", file_storage_dir)
+    if shared_file_storage_dir:
+      logging.info("Shared file storage directory: %s",
+                   shared_file_storage_dir)
+
+    buf = StringIO()
+    buf.write("# List automatically generated from configuration by\n")
+    buf.write("# cfgupgrade at %s\n" % time.asctime())
+    if file_storage_dir:
+      buf.write("%s\n" % file_storage_dir)
+    if shared_file_storage_dir:
+      buf.write("%s\n" % shared_file_storage_dir)
+    utils.WriteFile(file_name=options.FILE_STORAGE_PATHS_FILE,
+                    data=buf.getvalue(),
+                    mode=0600,
+                    dry_run=options.dry_run,
+                    backup=True)
+
+  UpgradeNetworks(config_data)
+  UpgradeGroups(config_data)
+
   try:
     logging.info("Writing configuration file to %s", options.CONFIG_DATA_PATH)
     utils.WriteFile(file_name=options.CONFIG_DATA_PATH,
@@ -168,31 +304,38 @@ def main():
                     backup=True)
 
     if not options.dry_run:
-      if not os.path.exists(options.RAPI_CERT_FILE):
-        logging.debug("Writing RAPI certificate to %s", options.RAPI_CERT_FILE)
-        bootstrap._GenerateSelfSignedSslCert(options.RAPI_CERT_FILE)
-
-  except:
+      bootstrap.GenerateClusterCrypto(
+        False, False, False, False, False,
+        nodecert_file=options.SERVER_PEM_PATH,
+        rapicert_file=options.RAPI_CERT_FILE,
+        spicecert_file=options.SPICE_CERT_FILE,
+        spicecacert_file=options.SPICE_CACERT_FILE,
+        hmackey_file=options.CONFD_HMAC_KEY,
+        cds_file=options.CDS_FILE)
+
+  except Exception:
     logging.critical("Writing configuration failed. It is probably in an"
                      " inconsistent state and needs manual intervention.")
     raise
 
   # test loading the config file
-  if not options.dry_run:
+  if not (options.dry_run or options.no_verify):
     logging.info("Testing the new config file...")
     cfg = config.ConfigWriter(cfg_file=options.CONFIG_DATA_PATH,
+                              accept_foreign=options.ignore_hostname,
                               offline=True)
     # if we reached this, it's all fine
     vrfy = cfg.VerifyConfig()
     if vrfy:
       logging.error("Errors after conversion:")
       for item in vrfy:
-        logging.error(" - %s" % item)
+        logging.error(" - %s", item)
     del cfg
     logging.info("File loaded successfully")
 
+  cli.ToStderr("Configuration successfully upgraded for version %s.",
+               constants.RELEASE_VERSION)
+
 
 if __name__ == "__main__":
   main()
-
-# vim: set foldmethod=marker :