# C0103: Invalid name gnt-node
import itertools
+import errno
from ganeti.cli import *
from ganeti import cli
from ganeti import constants
from ganeti import errors
from ganeti import netutils
+from ganeti import pathutils
+from ganeti import ssh
+from ganeti import compat
from cStringIO import StringIO
+from ganeti import confd
+from ganeti.confd import client as confd_client
#: default list of field for L{ListNodes}
_LIST_DEF_FIELDS = [
_MODIFIABLE_STORAGE_TYPES = constants.MODIFIABLE_STORAGE_FIELDS.keys()
+_OOB_COMMAND_ASK = compat.UniqueFrozenset([
+ constants.OOB_POWER_OFF,
+ constants.OOB_POWER_CYCLE,
+ ])
-_OOB_COMMAND_ASK = frozenset([constants.OOB_POWER_OFF,
- constants.OOB_POWER_CYCLE])
-
-
-_ENV_OVERRIDE = frozenset(["list"])
-
+_ENV_OVERRIDE = compat.UniqueFrozenset(["list"])
NONODE_SETUP_OPT = cli_option("--no-node-setup", default=True,
action="store_false", dest="node_setup",
errors.ECODE_INVAL)
-def _RunSetupSSH(options, nodes):
- """Wrapper around utils.RunCmd to call setup-ssh
+def _TryReadFile(path):
+ """Tries to read a file.
- @param options: The command line options
- @param nodes: The nodes to setup
+ If the file is not found, C{None} is returned.
+
+ @type path: string
+ @param path: Filename
+ @rtype: None or string
+ @todo: Consider adding a generic ENOENT wrapper
"""
+ try:
+ return utils.ReadFile(path)
+ except EnvironmentError, err:
+ if err.errno == errno.ENOENT:
+ return None
+ else:
+ raise
+
+
+def _ReadSshKeys(keyfiles, _tostderr_fn=ToStderr):
+ """Reads SSH keys according to C{keyfiles}.
- assert nodes, "Empty node list"
+ @type keyfiles: dict
+ @param keyfiles: Dictionary with keys of L{constants.SSHK_ALL} and two-values
+ tuples (private and public key file)
+ @rtype: list
+ @return: List of three-values tuples (L{constants.SSHK_ALL}, private and
+ public key as strings)
+
+ """
+ result = []
- cmd = [constants.SETUP_SSH]
+ for (kind, (private_file, public_file)) in keyfiles.items():
+ private_key = _TryReadFile(private_file)
+ public_key = _TryReadFile(public_file)
- # Pass --debug|--verbose to the external script if set on our invocation
- # --debug overrides --verbose
- if options.debug:
- cmd.append("--debug")
- elif options.verbose:
- cmd.append("--verbose")
- if not options.ssh_key_check:
- cmd.append("--no-ssh-key-check")
+ if public_key and private_key:
+ result.append((kind, private_key, public_key))
+ elif public_key or private_key:
+ _tostderr_fn("Couldn't find a complete set of keys for kind '%s'; files"
+ " '%s' and '%s'", kind, private_file, public_file)
+
+ return result
+
+
+def _SetupSSH(options, cluster_name, node):
+ """Configures a destination node's SSH daemon.
+
+ @param options: Command line options
+ @type cluster_name
+ @param cluster_name: Cluster name
+ @type node: string
+ @param node: Destination node name
+
+ """
if options.force_join:
- cmd.append("--force-join")
+ ToStderr("The \"--force-join\" option is no longer supported and will be"
+ " ignored.")
+
+ host_keys = _ReadSshKeys(constants.SSH_DAEMON_KEYFILES)
+
+ (_, root_keyfiles) = \
+ ssh.GetAllUserFiles(constants.SSH_LOGIN_USER, mkdir=False, dircheck=False)
+
+ root_keys = _ReadSshKeys(root_keyfiles)
- cmd.extend(nodes)
+ (_, cert_pem) = \
+ utils.ExtractX509Certificate(utils.ReadFile(pathutils.NODED_CERT_FILE))
- result = utils.RunCmd(cmd, interactive=True)
+ data = {
+ constants.SSHS_CLUSTER_NAME: cluster_name,
+ constants.SSHS_NODE_DAEMON_CERTIFICATE: cert_pem,
+ constants.SSHS_SSH_HOST_KEY: host_keys,
+ constants.SSHS_SSH_ROOT_KEY: root_keys,
+ }
- if result.failed:
- errmsg = ("Command '%s' failed with exit code %s; output %r" %
- (result.cmd, result.exit_code, result.output))
- raise errors.OpExecError(errmsg)
+ bootstrap.RunNodeSetupCmd(cluster_name, node, pathutils.PREPARE_NODE_JOIN,
+ options.debug, options.verbose, False,
+ options.ssh_key_check, options.ssh_key_check, data)
@UsesRPC
sip = opts.secondary_ip
# read the cluster name from the master
- output = cl.QueryConfigValues(["cluster_name"])
- cluster_name = output[0]
+ (cluster_name, ) = cl.QueryConfigValues(["cluster_name"])
if not readd and opts.node_setup:
ToStderr("-- WARNING -- \n"
"and grant full intra-cluster ssh root access to/from it\n", node)
if opts.node_setup:
- _RunSetupSSH(opts, [node])
+ _SetupSSH(opts, cluster_name, node)
- bootstrap.SetupNodeDaemon(cluster_name, node, opts.ssh_key_check)
+ bootstrap.SetupNodeDaemon(opts, cluster_name, node)
if opts.disk_state:
disk_state = utils.FlatToDict(opts.disk_state)
fmtoverride = dict.fromkeys(["pinst_list", "sinst_list", "tags"],
(",".join, False))
+ cl = GetClient(query=True)
+
return GenericList(constants.QR_NODE, selected_fields, args, opts.units,
opts.separator, not opts.no_headers,
format_override=fmtoverride, verbose=opts.verbose,
- force_filter=opts.force_filter)
+ force_filter=opts.force_filter, cl=cl)
def ListNodeFields(opts, args):
@return: the desired exit code
"""
+ cl = GetClient(query=True)
+
return GenericListFields(constants.QR_NODE, args, opts.separator,
- not opts.no_headers)
+ not opts.no_headers, cl=cl)
def EvacuateNode(opts, args):
cl = GetClient()
- result = cl.QueryNodes(names=args, fields=fields, use_locking=False)
+ qcl = GetClient(query=True)
+ result = qcl.QueryNodes(names=args, fields=fields, use_locking=False)
+ qcl.Close()
+
instances = set(itertools.chain(*itertools.chain(*itertools.chain(result))))
if not instances:
# these fields are static data anyway, so it doesn't matter, but
# locking=True should be safer
+ qcl = GetClient(query=True)
result = cl.QueryNodes(names=args, fields=selected_fields,
use_locking=False)
+ qcl.Close()
node, pinst = result[0]
if not pinst:
force = opts.force
selected_fields = ["name", "pinst_list"]
+ qcl = GetClient(query=True)
result = cl.QueryNodes(names=args, fields=selected_fields, use_locking=False)
+ qcl.Close()
((node, pinst), ) = result
if not pinst:
@return: the desired exit code
"""
- cl = GetClient()
+ cl = GetClient(query=True)
result = cl.QueryNodes(fields=["name", "pip", "sip",
"pinst_list", "sinst_list",
"master_candidate", "drained", "offline",
return 0
+def RestrictedCommand(opts, args):
+ """Runs a remote command on node(s).
+
+ @param opts: Command line options selected by user
+ @type args: list
+ @param args: Command line arguments
+ @rtype: int
+ @return: Exit code
+
+ """
+ cl = GetClient()
+
+ if len(args) > 1 or opts.nodegroup:
+ # Expand node names
+ nodes = GetOnlineNodes(nodes=args[1:], cl=cl, nodegroup=opts.nodegroup)
+ else:
+ raise errors.OpPrereqError("Node group or node names must be given",
+ errors.ECODE_INVAL)
+
+ op = opcodes.OpRestrictedCommand(command=args[0], nodes=nodes,
+ use_locking=opts.do_locking)
+ result = SubmitOrSend(op, opts, cl=cl)
+
+ exit_code = constants.EXIT_SUCCESS
+
+ for (node, (status, text)) in zip(nodes, result):
+ ToStdout("------------------------------------------------")
+ if status:
+ if opts.show_machine_names:
+ for line in text.splitlines():
+ ToStdout("%s: %s", node, line)
+ else:
+ ToStdout("Node: %s", node)
+ ToStdout(text)
+ else:
+ exit_code = constants.EXIT_FAILURE
+ ToStdout(text)
+
+ return exit_code
+
+
+class ReplyStatus(object):
+ """Class holding a reply status for synchronous confd clients.
+
+ """
+ def __init__(self):
+ self.failure = True
+ self.answer = False
+
+
+def ListDrbd(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 len(args) != 1:
+ ToStderr("Please give one (and only one) node.")
+ return constants.EXIT_FAILURE
+
+ if not constants.ENABLE_CONFD:
+ ToStderr("Error: this command requires confd support, but it has not"
+ " been enabled at build time.")
+ return constants.EXIT_FAILURE
+
+ status = ReplyStatus()
+
+ def ListDrbdConfdCallback(reply):
+ """Callback for confd queries"""
+ if reply.type == confd_client.UPCALL_REPLY:
+ answer = reply.server_reply.answer
+ reqtype = reply.orig_request.type
+ if reqtype == constants.CONFD_REQ_NODE_DRBD:
+ if reply.server_reply.status != constants.CONFD_REPL_STATUS_OK:
+ ToStderr("Query gave non-ok status '%s': %s" %
+ (reply.server_reply.status,
+ reply.server_reply.answer))
+ status.failure = True
+ return
+ if not confd.HTNodeDrbd(answer):
+ ToStderr("Invalid response from server: expected %s, got %s",
+ confd.HTNodeDrbd, answer)
+ status.failure = True
+ else:
+ status.failure = False
+ status.answer = answer
+ else:
+ ToStderr("Unexpected reply %s!?", reqtype)
+ status.failure = True
+
+ node = args[0]
+ hmac = utils.ReadFile(pathutils.CONFD_HMAC_KEY)
+ filter_callback = confd_client.ConfdFilterCallback(ListDrbdConfdCallback)
+ counting_callback = confd_client.ConfdCountingCallback(filter_callback)
+ cf_client = confd_client.ConfdClient(hmac, [constants.IP4_ADDRESS_LOCALHOST],
+ counting_callback)
+ req = confd_client.ConfdClientRequest(type=constants.CONFD_REQ_NODE_DRBD,
+ query=node)
+
+ def DoConfdRequestReply(req):
+ counting_callback.RegisterQuery(req.rsalt)
+ cf_client.SendRequest(req, async=False)
+ while not counting_callback.AllAnswered():
+ if not cf_client.ReceiveReply():
+ ToStderr("Did not receive all expected confd replies")
+ break
+
+ DoConfdRequestReply(req)
+
+ if status.failure:
+ return constants.EXIT_FAILURE
+
+ fields = ["node", "minor", "instance", "disk", "role", "peer"]
+ if opts.no_headers:
+ headers = None
+ else:
+ headers = {"node": "Node", "minor": "Minor", "instance": "Instance",
+ "disk": "Disk", "role": "Role", "peer": "PeerNode"}
+
+ data = GenerateTable(separator=opts.separator, headers=headers,
+ fields=fields, data=sorted(status.answer),
+ numfields=["minor"])
+ for line in data:
+ ToStdout(line)
+
+ return constants.EXIT_SUCCESS
+
+
commands = {
"add": (
AddNode, [ArgHost(min=1, max=1)],
MigrateNode, ARGS_ONE_NODE,
[FORCE_OPT, NONLIVE_OPT, MIGRATION_MODE_OPT, DST_NODE_OPT,
IALLOCATOR_OPT, PRIORITY_OPT, IGNORE_IPOLICY_OPT,
- NORUNTIME_CHGS_OPT, SUBMIT_OPT, PRIORITY_OPT],
+ NORUNTIME_CHGS_OPT, SUBMIT_OPT],
"[-f] <node>",
"Migrate all the primary instance on a node away from it"
" (only for instances of type drbd)"),
Health, ARGS_MANY_NODES,
[NOHDR_OPT, SEP_OPT, PRIORITY_OPT, OOB_TIMEOUT_OPT],
"[<node_name>...]", "List health of node(s) using out-of-band"),
+ "list-drbd": (
+ ListDrbd, ARGS_ONE_NODE,
+ [NOHDR_OPT, SEP_OPT],
+ "[<node_name>]", "Query the list of used DRBD minors on the given node"),
+ "restricted-command": (
+ RestrictedCommand, [ArgUnknown(min=1, max=1)] + ARGS_MANY_NODES,
+ [SYNC_OPT, PRIORITY_OPT, SUBMIT_OPT, SHOW_MACHINE_OPT, NODEGROUP_OPT],
+ "<command> <node_name> [<node_name>...]",
+ "Executes a restricted command on node(s)"),
}
#: dictionary with aliases for commands
projects / ganeti-local / blobdiff