# 02110-1301, USA.
+# pylint: disable-msg=W0401,W0614
+# W0401: Wildcard import ganeti.cli
+# W0614: Unused import %s from wildcard import (since we need cli)
+
import sys
from optparse import make_option
from ganeti.cli import *
+from ganeti import cli
from ganeti import opcodes
-from ganeti import logger
from ganeti import utils
from ganeti import constants
from ganeti import errors
from ganeti import bootstrap
+#: default list of field for L{ListNodes}
_LIST_DEF_FIELDS = [
"name", "dtotal", "dfree",
"mtotal", "mnode", "mfree",
"pinst_cnt", "sinst_cnt",
]
+#: headers (and full field list for L{ListNodes}
+_LIST_HEADERS = {
+ "name": "Node", "pinst_cnt": "Pinst", "sinst_cnt": "Sinst",
+ "pinst_list": "PriInstances", "sinst_list": "SecInstances",
+ "pip": "PrimaryIP", "sip": "SecondaryIP",
+ "dtotal": "DTotal", "dfree": "DFree",
+ "mtotal": "MTotal", "mnode": "MNode", "mfree": "MFree",
+ "bootid": "BootID",
+ "ctotal": "CTotal", "cnodes": "CNodes", "csockets": "CSockets",
+ "tags": "Tags",
+ "serial_no": "SerialNo",
+ "master_candidate": "MasterC",
+ "master": "IsMaster",
+ "offline": "Offline", "drained": "Drained",
+ }
+
+
+@UsesRPC
def AddNode(opts, args):
- """Add node cli-to-processor bridge.
+ """Add a node to the cluster.
+
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: should contain only one element, the new node name
+ @rtype: int
+ @return: the desired exit code
"""
+ cl = GetClient()
dns_data = utils.HostInfo(args[0])
node = dns_data.name
-
- if not opts.readd:
- op = opcodes.OpQueryNodes(output_fields=['name'], names=[node])
- try:
- output = SubmitOpCode(op)
- except (errors.OpPrereqError, errors.OpExecError):
- pass
- else:
- logger.ToStderr("Node %s already in the cluster (as %s)"
- " - please use --readd" % (args[0], output[0][0]))
+ readd = opts.readd
+
+ try:
+ output = cl.QueryNodes(names=[node], fields=['name', 'sip'],
+ use_locking=True)
+ node_exists, sip = output[0]
+ except (errors.OpPrereqError, errors.OpExecError):
+ node_exists = ""
+ sip = None
+
+ if readd:
+ if not node_exists:
+ ToStderr("Node %s not in the cluster"
+ " - please retry without '--readd'", node)
return 1
+ else:
+ if node_exists:
+ ToStderr("Node %s already in the cluster (as %s)"
+ " - please retry with '--readd'", node, node_exists)
+ return 1
+ sip = opts.secondary_ip
+
+ # read the cluster name from the master
+ output = cl.QueryConfigValues(['cluster_name'])
+ cluster_name = output[0]
+
+ if readd:
+ # clear the offline and drain flags on the node
+ ToStdout("Resetting the 'offline' and 'drained' flags due to re-add")
+ op = opcodes.OpSetNodeParams(node_name=node, force=True,
+ offline=False, drained=False)
+
+ result = SubmitOpCode(op, cl=cl)
+ if result:
+ ToStdout("Modified:")
+ for param, data in result:
+ ToStdout(" - %-5s -> %s", param, data)
+ else:
+ ToStderr("-- WARNING -- \n"
+ "Performing this operation is going to replace the ssh daemon"
+ " keypair\n"
+ "on the target machine (%s) with the ones of the"
+ " current one\n"
+ "and grant full intra-cluster ssh root access to/from it\n", node)
- logger.ToStderr("-- WARNING -- \n"
- "Performing this operation is going to replace the ssh daemon keypair\n"
- "on the target machine (%s) with the ones of the current one\n"
- "and grant full intra-cluster ssh root access to/from it\n" % node)
-
- bootstrap.SetupNodeDaemon(node)
+ bootstrap.SetupNodeDaemon(cluster_name, node, opts.ssh_key_check)
- op = opcodes.OpAddNode(node_name=args[0], secondary_ip=opts.secondary_ip,
+ op = opcodes.OpAddNode(node_name=args[0], secondary_ip=sip,
readd=opts.readd)
SubmitOpCode(op)
def ListNodes(opts, args):
"""List nodes and their properties.
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: should be an empty list
+ @rtype: int
+ @return: the desired exit code
+
"""
if opts.output is None:
selected_fields = _LIST_DEF_FIELDS
else:
selected_fields = opts.output.split(",")
- output = GetClient().QueryNodes([], selected_fields)
+ output = GetClient().QueryNodes([], selected_fields, opts.do_locking)
if not opts.no_headers:
- headers = {
- "name": "Node", "pinst_cnt": "Pinst", "sinst_cnt": "Sinst",
- "pinst_list": "PriInstances", "sinst_list": "SecInstances",
- "pip": "PrimaryIP", "sip": "SecondaryIP",
- "dtotal": "DTotal", "dfree": "DFree",
- "mtotal": "MTotal", "mnode": "MNode", "mfree": "MFree",
- "bootid": "BootID",
- "ctotal": "CTotal",
- "tags": "Tags",
- }
+ headers = _LIST_HEADERS
else:
headers = None
- if opts.human_readable:
- unitfields = ["dtotal", "dfree", "mtotal", "mnode", "mfree"]
- else:
- unitfields = None
+ unitfields = ["dtotal", "dfree", "mtotal", "mnode", "mfree"]
numfields = ["dtotal", "dfree",
"mtotal", "mnode", "mfree",
"pinst_cnt", "sinst_cnt",
- "ctotal"]
+ "ctotal", "serial_no"]
list_type_fields = ("pinst_list", "sinst_list", "tags")
# change raw values to nicer strings
val = row[idx]
if field in list_type_fields:
val = ",".join(val)
+ elif field in ('master', 'master_candidate', 'offline', 'drained'):
+ if val:
+ val = 'Y'
+ else:
+ val = 'N'
elif val is None:
val = "?"
row[idx] = str(val)
data = GenerateTable(separator=opts.separator, headers=headers,
fields=selected_fields, unitfields=unitfields,
- numfields=numfields, data=output)
+ numfields=numfields, data=output, units=opts.units)
for line in data:
- logger.ToStdout(line)
+ ToStdout(line)
return 0
def EvacuateNode(opts, args):
"""Relocate all secondary instance from a node.
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: should be an empty list
+ @rtype: int
+ @return: the desired exit code
+
"""
+ cl = GetClient()
force = opts.force
+
+ dst_node = opts.dst_node
+ iallocator = opts.iallocator
+
+ cnt = [dst_node, iallocator].count(None)
+ if cnt != 1:
+ raise errors.OpPrereqError("One and only one of the -n and -i"
+ " options must be passed")
+
selected_fields = ["name", "sinst_list"]
- src_node, dst_node = args
+ src_node = args[0]
- op = opcodes.OpQueryNodes(output_fields=selected_fields, names=[src_node])
- result = SubmitOpCode(op)
+ result = cl.QueryNodes(names=[src_node], fields=selected_fields,
+ use_locking=True)
src_node, sinst = result[0]
- op = opcodes.OpQueryNodes(output_fields=["name"], names=[dst_node])
- result = SubmitOpCode(op)
- dst_node = result[0][0]
-
- if src_node == dst_node:
- raise errors.OpPrereqError("Evacuate node needs different source and"
- " target nodes (node %s given twice)" %
- src_node)
if not sinst:
- logger.ToStderr("No secondary instances on node %s, exiting." % src_node)
+ ToStderr("No secondary instances on node %s, exiting.", src_node)
return constants.EXIT_SUCCESS
- sinst = utils.NiceSort(sinst)
+ if dst_node is not None:
+ result = cl.QueryNodes(names=[dst_node], fields=["name"], use_locking=True)
+ dst_node = result[0][0]
- retcode = constants.EXIT_SUCCESS
+ if src_node == dst_node:
+ raise errors.OpPrereqError("Evacuate node needs different source and"
+ " target nodes (node %s given twice)" %
+ src_node)
+ txt_msg = "to node %s" % dst_node
+ else:
+ txt_msg = "using iallocator %s" % iallocator
+
+ sinst = utils.NiceSort(sinst)
if not force and not AskUser("Relocate instance(s) %s from node\n"
- " %s to node\n %s?" %
+ " %s %s?" %
(",".join("'%s'" % name for name in sinst),
- src_node, dst_node)):
+ src_node, txt_msg)):
return constants.EXIT_CONFIRMATION
- good_cnt = bad_cnt = 0
+ ops = []
for iname in sinst:
op = opcodes.OpReplaceDisks(instance_name=iname,
remote_node=dst_node,
- mode=constants.REPLACE_DISK_ALL,
- disks=["sda", "sdb"])
- try:
- logger.ToStdout("Replacing disks for instance %s" % iname)
- SubmitOpCode(op)
- logger.ToStdout("Instance %s has been relocated" % iname)
- good_cnt += 1
- except errors.GenericError, err:
- nret, msg = FormatError(err)
- retcode |= nret
- logger.ToStderr("Error replacing disks for instance %s: %s" %
- (iname, msg))
- bad_cnt += 1
-
- if retcode == constants.EXIT_SUCCESS:
- logger.ToStdout("All %d instance(s) relocated successfully." % good_cnt)
- else:
- logger.ToStdout("There were errors during the relocation:\n"
- "%d error(s) out of %d instance(s)." %
- (bad_cnt, good_cnt + bad_cnt))
- return retcode
+ mode=constants.REPLACE_DISK_CHG,
+ iallocator=iallocator,
+ disks=[])
+ ops.append(op)
+
+ job_id = cli.SendJob(ops, cl=cl)
+ cli.PollJob(job_id, cl=cl)
def FailoverNode(opts, args):
"""Failover all primary instance on a node.
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: should be an empty list
+ @rtype: int
+ @return: the desired exit code
+
"""
+ cl = GetClient()
force = opts.force
selected_fields = ["name", "pinst_list"]
- op = opcodes.OpQueryNodes(output_fields=selected_fields, names=args)
- result = SubmitOpCode(op)
+ # these fields are static data anyway, so it doesn't matter, but
+ # locking=True should be safer
+ result = cl.QueryNodes(names=args, fields=selected_fields,
+ use_locking=True)
node, pinst = result[0]
if not pinst:
- logger.ToStderr("No primary instances on node %s, exiting." % node)
+ ToStderr("No primary instances on node %s, exiting.", node)
return 0
pinst = utils.NiceSort(pinst)
(",".join("'%s'" % name for name in pinst))):
return 2
- good_cnt = bad_cnt = 0
+ jex = JobExecutor(cl=cl)
for iname in pinst:
op = opcodes.OpFailoverInstance(instance_name=iname,
ignore_consistency=opts.ignore_consistency)
- try:
- logger.ToStdout("Failing over instance %s" % iname)
- SubmitOpCode(op)
- logger.ToStdout("Instance %s has been failed over" % iname)
- good_cnt += 1
- except errors.GenericError, err:
- nret, msg = FormatError(err)
- retcode |= nret
- logger.ToStderr("Error failing over instance %s: %s" % (iname, msg))
- bad_cnt += 1
-
- if retcode == 0:
- logger.ToStdout("All %d instance(s) failed over successfully." % good_cnt)
+ jex.QueueJob(iname, op)
+ results = jex.GetResults()
+ bad_cnt = len([row for row in results if not row[0]])
+ if bad_cnt == 0:
+ ToStdout("All %d instance(s) failed over successfully.", len(results))
else:
- logger.ToStdout("There were errors during the failover:\n"
- "%d error(s) out of %d instance(s)." %
- (bad_cnt, good_cnt + bad_cnt))
+ ToStdout("There were errors during the failover:\n"
+ "%d error(s) out of %d instance(s).", bad_cnt, len(results))
+ return retcode
+
+
+def MigrateNode(opts, args):
+ """Migrate all primary instance on a node.
+
+ """
+ cl = GetClient()
+ force = opts.force
+ selected_fields = ["name", "pinst_list"]
+
+ result = cl.QueryNodes(names=args, fields=selected_fields, use_locking=True)
+ node, pinst = result[0]
+
+ if not pinst:
+ ToStdout("No primary instances on node %s, exiting." % node)
+ return 0
+
+ pinst = utils.NiceSort(pinst)
+
+ retcode = 0
+
+ if not force and not AskUser("Migrate instance(s) %s?" %
+ (",".join("'%s'" % name for name in pinst))):
+ return 2
+
+ jex = JobExecutor(cl=cl)
+ for iname in pinst:
+ op = opcodes.OpMigrateInstance(instance_name=iname, live=opts.live,
+ cleanup=False)
+ jex.QueueJob(iname, op)
+
+ results = jex.GetResults()
+ bad_cnt = len([row for row in results if not row[0]])
+ if bad_cnt == 0:
+ ToStdout("All %d instance(s) migrated successfully.", len(results))
+ else:
+ ToStdout("There were errors during the migration:\n"
+ "%d error(s) out of %d instance(s).", bad_cnt, len(results))
return retcode
def ShowNodeConfig(opts, args):
"""Show node information.
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: should either be an empty list, in which case
+ we show information about all nodes, or should contain
+ a list of nodes to be queried for information
+ @rtype: int
+ @return: the desired exit code
+
"""
- op = opcodes.OpQueryNodes(output_fields=["name", "pip", "sip",
- "pinst_list", "sinst_list"],
- names=args)
- result = SubmitOpCode(op)
-
- for name, primary_ip, secondary_ip, pinst, sinst in result:
- logger.ToStdout("Node name: %s" % name)
- logger.ToStdout(" primary ip: %s" % primary_ip)
- logger.ToStdout(" secondary ip: %s" % secondary_ip)
+ cl = GetClient()
+ result = cl.QueryNodes(fields=["name", "pip", "sip",
+ "pinst_list", "sinst_list",
+ "master_candidate", "drained", "offline"],
+ names=args, use_locking=True)
+
+ for (name, primary_ip, secondary_ip, pinst, sinst,
+ is_mc, drained, offline) in result:
+ ToStdout("Node name: %s", name)
+ ToStdout(" primary ip: %s", primary_ip)
+ ToStdout(" secondary ip: %s", secondary_ip)
+ ToStdout(" master candidate: %s", is_mc)
+ ToStdout(" drained: %s", drained)
+ ToStdout(" offline: %s", offline)
if pinst:
- logger.ToStdout(" primary for instances:")
- for iname in pinst:
- logger.ToStdout(" - %s" % iname)
+ ToStdout(" primary for instances:")
+ for iname in utils.NiceSort(pinst):
+ ToStdout(" - %s", iname)
else:
- logger.ToStdout(" primary for no instances")
+ ToStdout(" primary for no instances")
if sinst:
- logger.ToStdout(" secondary for instances:")
- for iname in sinst:
- logger.ToStdout(" - %s" % iname)
+ ToStdout(" secondary for instances:")
+ for iname in utils.NiceSort(sinst):
+ ToStdout(" - %s", iname)
else:
- logger.ToStdout(" secondary for no instances")
+ ToStdout(" secondary for no instances")
return 0
def RemoveNode(opts, args):
- """Remove node cli-to-processor bridge."""
+ """Remove a node from the cluster.
+
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: should contain only one element, the name of
+ the node to be removed
+ @rtype: int
+ @return: the desired exit code
+
+ """
op = opcodes.OpRemoveNode(node_name=args[0])
SubmitOpCode(op)
+ return 0
def ListVolumes(opts, args):
"""List logical volumes on node(s).
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: should either be an empty list, in which case
+ we list data for all nodes, or contain a list of nodes
+ to display data only for those
+ @rtype: int
+ @return: the desired exit code
+
"""
if opts.output is None:
selected_fields = ["node", "phys", "vg",
else:
headers = None
- if opts.human_readable:
- unitfields = ["size"]
- else:
- unitfields = None
+ unitfields = ["size"]
numfields = ["size"]
data = GenerateTable(separator=opts.separator, headers=headers,
fields=selected_fields, unitfields=unitfields,
- numfields=numfields, data=output)
+ numfields=numfields, data=output, units=opts.units)
for line in data:
- logger.ToStdout(line)
+ ToStdout(line)
return 0
+def SetNodeParams(opts, args):
+ """Modifies a node.
+
+ @param opts: the command line options selected by the user
+ @type args: list
+ @param args: should contain only one element, the node name
+ @rtype: int
+ @return: the desired exit code
+
+ """
+ if [opts.master_candidate, opts.drained, opts.offline].count(None) == 3:
+ ToStderr("Please give at least one of the parameters.")
+ return 1
+
+ if opts.master_candidate is not None:
+ candidate = opts.master_candidate == 'yes'
+ else:
+ candidate = None
+ if opts.offline is not None:
+ offline = opts.offline == 'yes'
+ else:
+ offline = None
+
+ if opts.drained is not None:
+ drained = opts.drained == 'yes'
+ else:
+ drained = None
+ op = opcodes.OpSetNodeParams(node_name=args[0],
+ master_candidate=candidate,
+ offline=offline,
+ drained=drained,
+ force=opts.force)
+
+ # even if here we process the result, we allow submit only
+ result = SubmitOrSend(op, opts)
+
+ if result:
+ ToStdout("Modified node %s", args[0])
+ for param, data in result:
+ ToStdout(" - %-5s -> %s", param, data)
+ return 0
+
+
commands = {
'add': (AddNode, ARGS_ONE,
[DEBUG_OPT,
make_option("--readd", dest="readd",
default=False, action="store_true",
help="Readd old node after replacing it"),
+ make_option("--no-ssh-key-check", dest="ssh_key_check",
+ default=True, action="store_false",
+ help="Disable SSH key fingerprint checking"),
],
- "[-s ip] [--readd] <node_name>", "Add a node to the cluster"),
- 'evacuate': (EvacuateNode, ARGS_FIXED(2),
- [DEBUG_OPT, FORCE_OPT],
- "[-f] <src> <dst>",
- "Relocate the secondary instances from the first node"
- " to the second one (only for instances with drbd disk template"
- ),
+ "[-s ip] [--readd] [--no-ssh-key-check] <node_name>",
+ "Add a node to the cluster"),
+ 'evacuate': (EvacuateNode, ARGS_ONE,
+ [DEBUG_OPT, FORCE_OPT,
+ make_option("-n", "--new-secondary", dest="dst_node",
+ help="New secondary node", metavar="NODE",
+ default=None),
+ make_option("-i", "--iallocator", metavar="<NAME>",
+ help="Select new secondary for the instance"
+ " automatically using the"
+ " <NAME> iallocator plugin",
+ default=None, type="string"),
+ ],
+ "[-f] {-i <iallocator> | -n <dst>} <node>",
+ "Relocate the secondary instances from a node"
+ " to other nodes (only for instances with drbd disk template)"),
'failover': (FailoverNode, ARGS_ONE,
[DEBUG_OPT, FORCE_OPT,
make_option("--ignore-consistency", dest="ignore_consistency",
"[-f] <node>",
"Stops the primary instances on a node and start them on their"
" secondary node (only for instances with drbd disk template)"),
+ 'migrate': (MigrateNode, ARGS_ONE,
+ [DEBUG_OPT, FORCE_OPT,
+ make_option("--non-live", dest="live",
+ default=True, action="store_false",
+ help="Do a non-live migration (this usually means"
+ " freeze the instance, save the state,"
+ " transfer and only then resume running on the"
+ " secondary node)"),
+ ],
+ "[-f] <node>",
+ "Migrate all the primary instance on a node away from it"
+ " (only for instances of type drbd)"),
'info': (ShowNodeConfig, ARGS_ANY, [DEBUG_OPT],
"[<node_name>...]", "Show information about the node(s)"),
'list': (ListNodes, ARGS_NONE,
[DEBUG_OPT, NOHDR_OPT, SEP_OPT, USEUNITS_OPT, FIELDS_OPT,
- SUBMIT_OPT],
+ SUBMIT_OPT, SYNC_OPT],
"", "Lists the nodes in the cluster. The available fields"
- " are (see the man page for details): name, pinst_cnt, pinst_list,"
- " sinst_cnt, sinst_list, pip, sip, dtotal, dfree, mtotal, mnode,"
- " mfree, bootid, cpu_count. The default field list is"
- " (in order): %s." % ", ".join(_LIST_DEF_FIELDS),
- ),
+ " are (see the man page for details): %s"
+ " The default field list is (in order): %s." %
+ (", ".join(_LIST_HEADERS), ", ".join(_LIST_DEF_FIELDS))),
+ 'modify': (SetNodeParams, ARGS_ONE,
+ [DEBUG_OPT, FORCE_OPT,
+ SUBMIT_OPT,
+ make_option("-C", "--master-candidate", dest="master_candidate",
+ choices=('yes', 'no'), default=None,
+ help="Set the master_candidate flag on the node"),
+ make_option("-O", "--offline", dest="offline",
+ choices=('yes', 'no'), default=None,
+ help="Set the offline flag on the node"),
+ make_option("-D", "--drained", dest="drained",
+ choices=('yes', 'no'), default=None,
+ help="Set the drained flag on the node"),
+ ],
+ "<instance>", "Alters the parameters of an instance"),
'remove': (RemoveNode, ARGS_ONE, [DEBUG_OPT],
"<node_name>", "Removes a node from the cluster"),
'volumes': (ListVolumes, ARGS_ANY,
projects / ganeti-local / blobdiff