#
#
-# Copyright (C) 2010 Google Inc.
+# Copyright (C) 2010, 2011 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
# W0614: Unused import %s from wildcard import (since we need cli)
from ganeti.cli import *
-from ganeti import compat
+from ganeti import constants
+from ganeti import opcodes
+from ganeti import utils
#: default list of fields for L{ListGroups}
-_LIST_DEF_FIELDS = ["name", "node_cnt", "pinst_cnt"]
+_LIST_DEF_FIELDS = ["name", "node_cnt", "pinst_cnt", "alloc_policy", "ndparams"]
-#: headers (and full field list) for L{ListGroups}
-_LIST_HEADERS = {
- "name": "Group", "uuid": "UUID",
- "node_cnt": "Nodes", "node_list": "NodeList",
- "pinst_cnt": "Instances", "pinst_list": "InstanceList",
-}
+def AddGroup(opts, args):
+ """Add a node group to the cluster.
+
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: a list of length 1 with the name of the group to create
+ @rtype: int
+ @return: the desired exit code
+
+ """
+ (group_name,) = args
+ op = opcodes.OpGroupAdd(group_name=group_name, ndparams=opts.ndparams,
+ alloc_policy=opts.alloc_policy)
+ SubmitOpCode(op, opts=opts)
+
+
+def AssignNodes(opts, args):
+ """Assign nodes to a group.
+
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: args[0]: group to assign nodes to; args[1:]: nodes to assign
+ @rtype: int
+ @return: the desired exit code
+
+ """
+ group_name = args[0]
+ node_names = args[1:]
+
+ op = opcodes.OpGroupAssignNodes(group_name=group_name, nodes=node_names,
+ force=opts.force)
+ SubmitOpCode(op, opts=opts)
+
+
+def _FmtDict(data):
+ """Format dict data into command-line format.
+
+ @param data: The input dict to be formatted
+ @return: The formatted dict
+
+ """
+ if not data:
+ return "(empty)"
+
+ return utils.CommaJoin(["%s=%s" % (key, value)
+ for key, value in data.items()])
def ListGroups(opts, args):
"""
desired_fields = ParseFields(opts.output, _LIST_DEF_FIELDS)
+ fmtoverride = {
+ "node_list": (",".join, False),
+ "pinst_list": (",".join, False),
+ "ndparams": (_FmtDict, False),
+ }
- output = GetClient().QueryGroups(args, desired_fields, opts.do_locking)
+ return GenericList(constants.QR_GROUP, desired_fields, args, None,
+ opts.separator, not opts.no_headers,
+ format_override=fmtoverride, verbose=opts.verbose)
- if opts.no_headers:
- headers = None
- else:
- headers = _LIST_HEADERS
- int_type_fields = frozenset(["node_cnt", "pinst_cnt"])
- list_type_fields = frozenset(["node_list", "pinst_list"])
+def ListGroupFields(opts, args):
+ """List node fields.
- for row in output:
- for idx, field in enumerate(desired_fields):
- val = row[idx]
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: fields to list, or empty for all
+ @rtype: int
+ @return: the desired exit code
- if field in list_type_fields:
- val = ",".join(val)
- elif opts.roman_integers and field in int_type_fields:
- val = compat.TryToRoman(val)
- elif val is None:
- val = "?"
+ """
+ return GenericListFields(constants.QR_GROUP, args, opts.separator,
+ not opts.no_headers)
- row[idx] = str(val)
- data = GenerateTable(separator=opts.separator, headers=headers,
- fields=desired_fields, data=output)
+def SetGroupParams(opts, args):
+ """Modifies a node group's parameters.
- for line in data:
- ToStdout(line)
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: should contain only one element, the node group name
+
+ @rtype: int
+ @return: the desired exit code
+
+ """
+ all_changes = {
+ "ndparams": opts.ndparams,
+ "alloc_policy": opts.alloc_policy,
+ }
+
+ if all_changes.values().count(None) == len(all_changes):
+ ToStderr("Please give at least one of the parameters.")
+ return 1
+
+ op = opcodes.OpGroupSetParams(group_name=args[0], # pylint: disable-msg=W0142
+ **all_changes)
+ result = SubmitOrSend(op, opts)
+
+ if result:
+ ToStdout("Modified node group %s", args[0])
+ for param, data in result:
+ ToStdout(" - %-5s -> %s", param, data)
return 0
+def RemoveGroup(opts, args):
+ """Remove a node group from the cluster.
+
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: a list of length 1 with the name of the group to remove
+ @rtype: int
+ @return: the desired exit code
+
+ """
+ (group_name,) = args
+ op = opcodes.OpGroupRemove(group_name=group_name)
+ SubmitOpCode(op, opts=opts)
+
+
+def RenameGroup(opts, args):
+ """Rename a node group.
+
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: a list of length 2, [old_name, new_name]
+ @rtype: int
+ @return: the desired exit code
+
+ """
+ group_name, new_name = args
+ op = opcodes.OpGroupRename(group_name=group_name, new_name=new_name)
+ SubmitOpCode(op, opts=opts)
+
+
commands = {
+ "add": (
+ AddGroup, ARGS_ONE_GROUP, [DRY_RUN_OPT, ALLOC_POLICY_OPT, NODE_PARAMS_OPT],
+ "<group_name>", "Add a new node group to the cluster"),
+ "assign-nodes": (
+ AssignNodes, ARGS_ONE_GROUP + ARGS_MANY_NODES, [DRY_RUN_OPT, FORCE_OPT],
+ "<group_name> <node>...", "Assign nodes to a group"),
"list": (
ListGroups, ARGS_MANY_GROUPS,
- [NOHDR_OPT, SEP_OPT, FIELDS_OPT, SYNC_OPT, ROMAN_OPT],
- "[<group_name>...]", "Lists the node groups in the cluster."),
+ [NOHDR_OPT, SEP_OPT, FIELDS_OPT, VERBOSE_OPT],
+ "[<group_name>...]",
+ "Lists the node groups in the cluster. The available fields can be shown"
+ " using the \"list-fields\" command (see the man page for details)."
+ " The default list is (in order): %s." % utils.CommaJoin(_LIST_DEF_FIELDS)),
+ "list-fields": (
+ ListGroupFields, [ArgUnknown()], [NOHDR_OPT, SEP_OPT], "[fields...]",
+ "Lists all available fields for node groups"),
+ "modify": (
+ SetGroupParams, ARGS_ONE_GROUP,
+ [DRY_RUN_OPT, SUBMIT_OPT, ALLOC_POLICY_OPT, NODE_PARAMS_OPT],
+ "<group_name>", "Alters the parameters of a node group"),
+ "remove": (
+ RemoveGroup, ARGS_ONE_GROUP, [DRY_RUN_OPT],
+ "[--dry-run] <group-name>",
+ "Remove an (empty) node group from the cluster"),
+ "rename": (
+ RenameGroup, [ArgGroup(min=2, max=2)], [DRY_RUN_OPT],
+ "[--dry-run] <group-name> <new-name>", "Rename a node group"),
}
projects / ganeti-local / blobdiff