def config_show(lib, argv, modifiers):
"""
Options:
* -f - CIB file, when getting cluster name on remote node (corosync.conf
doesn't exist)
* --corosync_conf - corosync.conf file
"""
modifiers.ensure_only_supported("-f", "--corosync_conf")
if argv:
raise CmdLineInputError()
print("Cluster Name: %s" % utils.getClusterName())
status.nodes_status(lib, ["config"], modifiers.get_subset("-f"))
print()
print("\n".join(_config_show_cib_lines(lib)))
if (utils.hasCorosyncConf() and not modifiers.is_specified("-f")
and not modifiers.is_specified("--corosync_conf")):
cluster.cluster_uidgid(lib, [],
modifiers.get_subset(),
silent_list=True)
if modifiers.is_specified("--corosync_conf") or utils.hasCorosyncConf():
print()
print("Quorum:")
try:
config = lib_quorum.get_config(utils.get_lib_env())
print("\n".join(indent(quorum.quorum_config_to_str(config))))
except LibraryError as e:
process_library_reports(e.args)
def pcsd_status_cmd(
lib: Any,
argv: Sequence[str],
modifiers: InputModifiers,
dont_exit: bool = False,
) -> None:
"""
Options:
* --request-timeout - HTTP timeout for node authorization check
"""
# If no arguments get current cluster node status, otherwise get listed
# nodes status
del lib
modifiers.ensure_only_supported("--request-timeout")
bad_nodes = False
if not argv:
nodes, report_list = get_existing_nodes_names(
utils.get_corosync_conf_facade()
)
if not nodes and not dont_exit:
report_list.append(
ReportItem.error(
reports.messages.CorosyncConfigNoNodesDefined()
)
)
if report_list:
process_library_reports(report_list)
bad_nodes = _check_nodes(nodes, " ")
else:
bad_nodes = _check_nodes(argv, " ")
if bad_nodes and not dont_exit:
sys.exit(2)
def get_fence_agent_info(lib, argv, modifiers):
"""
Options: no options
"""
del lib
modifiers.ensure_only_supported()
if len(argv) != 1:
utils.err("One parameter expected")
agent = argv[0]
if not agent.startswith("stonith:"):
utils.err("Invalid fence agent name")
runner = utils.cmd_runner()
try:
metadata = lib_ra.StonithAgent(runner, agent[len("stonith:"):])
info = metadata.get_full_info()
info["name"] = "stonith:{0}".format(info["name"])
print(json.dumps(info))
except lib_ra.ResourceAgentError as e:
process_library_reports(
[lib_ra.resource_agent_error_to_report_item(e)])
except LibraryError as e:
process_library_reports(e.args)
def quorum_unblock_cmd(lib, argv, modifiers):
"""
Options:
* --force - no error when removing non existing property and no warning
about this action
"""
modifiers.ensure_only_supported("--force")
if argv:
raise CmdLineInputError()
output, retval = utils.run(
["corosync-cmapctl", "-g", "runtime.votequorum.wait_for_all_status"])
if retval != 0:
utils.err("unable to check quorum status")
if output.split("=")[-1].strip() != "1":
utils.err("cluster is not waiting for nodes to establish quorum")
all_nodes, report_list = get_existing_nodes_names(
utils.get_corosync_conf_facade())
if report_list:
process_library_reports(report_list)
unjoined_nodes = set(all_nodes) - set(utils.getCorosyncActiveNodes())
if not unjoined_nodes:
utils.err("no unjoined nodes found")
if not modifiers.get("--force"):
answer = utils.get_terminal_input(
("WARNING: If node(s) {nodes} are not powered off or they do" +
" have access to shared resources, data corruption and/or" +
" cluster failure may occur. Are you sure you want to" +
" continue? [y/N] ").format(nodes=", ".join(unjoined_nodes)))
if answer.lower() not in ["y", "yes"]:
print("Canceled")
return
for node in unjoined_nodes:
# pass --force so no warning will be displayed
stonith.stonith_confirm(lib, [node],
parse_args.InputModifiers({"--force": ""}))
output, retval = utils.run(
["corosync-cmapctl", "-s", "quorum.cancel_wait_for_all", "u8", "1"])
if retval != 0:
utils.err("unable to cancel waiting for nodes")
print("Quorum unblocked")
startup_fencing = utils.get_set_properties().get("startup-fencing", "")
utils.set_cib_property(
"startup-fencing",
"false" if startup_fencing.lower() != "false" else "true",
)
utils.set_cib_property("startup-fencing", startup_fencing)
print("Waiting for nodes canceled")
def quorum_unblock_cmd(lib, argv, modifiers):
"""
Options:
* --force - no error when removing non existing property and no warning
about this action
"""
modifiers.ensure_only_supported("--force")
if argv:
raise CmdLineInputError()
output, retval = utils.run(
["corosync-cmapctl", "-g", "runtime.votequorum.wait_for_all_status"])
if (retval == 1 and "Error CS_ERR_NOT_EXIST" in output) or (
retval == 0 and output.rsplit("=", maxsplit=1)[-1].strip() != "1"):
utils.err("cluster is not waiting for nodes to establish quorum")
if retval != 0:
utils.err("unable to check quorum status")
all_nodes, report_list = get_existing_nodes_names(
utils.get_corosync_conf_facade())
if report_list:
process_library_reports(report_list)
unjoined_nodes = set(all_nodes) - set(utils.getCorosyncActiveNodes())
if not unjoined_nodes:
utils.err("no unjoined nodes found")
if not utils.get_continue_confirmation_or_force(
f"If node(s) {format_list(unjoined_nodes)} are not powered off or they "
"do have access to shared resources, data corruption and/or cluster "
"failure may occur",
modifiers.get("--force"),
):
return
for node in unjoined_nodes:
# pass --force so no warning will be displayed
stonith.stonith_confirm(lib, [node],
parse_args.InputModifiers({"--force": ""}))
output, retval = utils.run(
["corosync-cmapctl", "-s", "quorum.cancel_wait_for_all", "u8", "1"])
if retval != 0:
utils.err("unable to cancel waiting for nodes")
print_to_stderr("Quorum unblocked")
startup_fencing = utils.get_set_properties().get("startup-fencing", "")
utils.set_cib_property(
"startup-fencing",
"false" if startup_fencing.lower() != "false" else "true",
)
utils.set_cib_property("startup-fencing", startup_fencing)
print_to_stderr("Waiting for nodes canceled")
def cluster_pcsd_status(lib, argv, modifiers, dont_exit=False):
"""
Options:
* --request-timeout - HTTP timeout for node authorization check
"""
del lib
modifiers.ensure_only_supported("--request-timeout")
bad_nodes = False
if not argv:
nodes, report_list = get_existing_nodes_names(
utils.get_corosync_conf_facade())
if not nodes and not dont_exit:
report_list.append(
ReportItem.error(
reports.messages.CorosyncConfigNoNodesDefined()))
if report_list:
process_library_reports(report_list)
bad_nodes = check_nodes(nodes, " ")
else:
bad_nodes = check_nodes(argv, " ")
if bad_nodes and not dont_exit:
sys.exit(2)
def nodes_status(lib, argv, modifiers):
"""
Options:
* -f - CIB file - for config subcommand and not for both or corosync
* --corosync_conf - only for config subcommand
NOTE: modifiers check is in subcommand
"""
del lib
if len(argv) == 1 and (argv[0] == "config"):
modifiers.ensure_only_supported("-f", "--corosync_conf")
if utils.hasCorosyncConf():
corosync_nodes, report_list = get_existing_nodes_names(
utils.get_corosync_conf_facade())
if report_list:
process_library_reports(report_list)
else:
corosync_nodes = []
try:
pacemaker_nodes = sorted([
node.attrs.name for node in ClusterState(
get_cluster_status_dom(
utils.cmd_runner())).node_section.nodes
if node.attrs.type != "remote"
])
except LibraryError as e:
process_library_reports(e.args)
print("Corosync Nodes:")
if corosync_nodes:
print(" " + " ".join(corosync_nodes))
print("Pacemaker Nodes:")
if pacemaker_nodes:
print(" " + " ".join(pacemaker_nodes))
return
if len(argv) == 1 and (argv[0] == "corosync" or argv[0] == "both"):
modifiers.ensure_only_supported()
all_nodes, report_list = get_existing_nodes_names(
utils.get_corosync_conf_facade())
if report_list:
process_library_reports(report_list)
online_nodes = utils.getCorosyncActiveNodes()
offline_nodes = []
for node in all_nodes:
if node not in online_nodes:
offline_nodes.append(node)
online_nodes.sort()
offline_nodes.sort()
print("Corosync Nodes:")
print(" ".join([" Online:"] + online_nodes))
print(" ".join([" Offline:"] + offline_nodes))
if argv[0] != "both":
sys.exit(0)
modifiers.ensure_only_supported("-f")
info_dom = utils.getClusterState()
nodes = info_dom.getElementsByTagName("nodes")
if nodes.length == 0:
utils.err("No nodes section found")
onlinenodes = []
offlinenodes = []
standbynodes = []
standbynodes_with_resources = []
maintenancenodes = []
remote_onlinenodes = []
remote_offlinenodes = []
remote_standbynodes = []
remote_standbynodes_with_resources = []
remote_maintenancenodes = []
for node in nodes[0].getElementsByTagName("node"):
node_name = node.getAttribute("name")
node_remote = node.getAttribute("type") == "remote"
if node.getAttribute("online") == "true":
if node.getAttribute("standby") == "true":
is_running_resources = (node.getAttribute("resources_running")
!= "0")
if node_remote:
if is_running_resources:
remote_standbynodes_with_resources.append(node_name)
else:
remote_standbynodes.append(node_name)
else:
if is_running_resources:
standbynodes_with_resources.append(node_name)
else:
standbynodes.append(node_name)
if node.getAttribute("maintenance") == "true":
if node_remote:
remote_maintenancenodes.append(node_name)
else:
maintenancenodes.append(node_name)
if (node.getAttribute("standby") == "false"
and node.getAttribute("maintenance") == "false"):
if node_remote:
remote_onlinenodes.append(node_name)
else:
onlinenodes.append(node_name)
else:
if node_remote:
remote_offlinenodes.append(node_name)
else:
offlinenodes.append(node_name)
print("Pacemaker Nodes:")
print(" ".join([" Online:"] + onlinenodes))
print(" ".join([" Standby:"] + standbynodes))
print(" ".join([" Standby with resource(s) running:"] +
standbynodes_with_resources))
print(" ".join([" Maintenance:"] + maintenancenodes))
print(" ".join([" Offline:"] + offlinenodes))
print("Pacemaker Remote Nodes:")
print(" ".join([" Online:"] + remote_onlinenodes))
print(" ".join([" Standby:"] + remote_standbynodes))
print(" ".join([" Standby with resource(s) running:"] +
remote_standbynodes_with_resources))
print(" ".join([" Maintenance:"] + remote_maintenancenodes))
print(" ".join([" Offline:"] + remote_offlinenodes))
def main(argv=None):
# pylint: disable=global-statement
# pylint: disable=too-many-branches
# pylint: disable=too-many-locals
# pylint: disable=too-many-statements
if completion.has_applicable_environment(os.environ):
print(
completion.make_suggestions(
os.environ, usage.generate_completion_tree_from_usage()
)
)
sys.exit()
argv = argv if argv else sys.argv[1:]
utils.subprocess_setup()
global filename, usefile
utils.pcs_options = {}
# we want to support optional arguments for --wait, so if an argument
# is specified with --wait (ie. --wait=30) then we use them
waitsecs = None
new_argv = []
for arg in argv:
if arg.startswith("--wait="):
tempsecs = arg.replace("--wait=", "")
if tempsecs:
waitsecs = tempsecs
arg = "--wait"
new_argv.append(arg)
argv = new_argv
try:
if "--" in argv:
pcs_options, argv = getopt.gnu_getopt(
argv, parse_args.PCS_SHORT_OPTIONS, parse_args.PCS_LONG_OPTIONS
)
else:
# DEPRECATED
# TODO remove
# We want to support only the -- version
(
args_without_negative_nums,
args_filtered_out,
) = parse_args.filter_out_non_option_negative_numbers(argv)
if args_filtered_out:
options_str = "', '".join(args_filtered_out)
output.warn(
f"Using '{options_str}' without '--' is deprecated, those "
"parameters will be considered position independent "
"options in future pcs versions"
)
pcs_options, dummy_argv = getopt.gnu_getopt(
args_without_negative_nums,
parse_args.PCS_SHORT_OPTIONS,
parse_args.PCS_LONG_OPTIONS,
)
argv = parse_args.filter_out_options(argv)
except getopt.GetoptError as err:
usage.main()
print(err)
if err.opt in {"V", "clone", "device", "watchdog"}:
# Print error messages which point users to the changes section in
# pcs manpage.
# TODO remove
# To be removed in the next significant version.
print(f"Hint: {errors.HINT_SYNTAX_CHANGE}")
sys.exit(1)
full = False
for option, dummy_value in pcs_options:
if option == "--full":
full = True
break
for opt, val in pcs_options:
if not opt in utils.pcs_options:
utils.pcs_options[opt] = val
else:
# If any options are a list then they've been entered twice which
# isn't valid
utils.err("%s can only be used once" % opt)
if opt in ("-h", "--help"):
if not argv:
usage.main()
sys.exit()
else:
argv = [argv[0], "help"] + argv[1:]
elif opt == "-f":
usefile = True
filename = val
utils.usefile = usefile
utils.filename = filename
elif opt == "--corosync_conf":
settings.corosync_conf_file = val
elif opt == "--version":
print(settings.pcs_version)
if full:
print(
" ".join(
sorted(
[
feat["id"]
for feat in capabilities.get_pcs_capabilities()
]
)
)
)
sys.exit()
elif opt == "--fullhelp":
usage.full_usage()
sys.exit()
elif opt == "--wait":
utils.pcs_options[opt] = waitsecs
elif opt == "--request-timeout":
request_timeout_valid = False
try:
timeout = int(val)
if timeout > 0:
utils.pcs_options[opt] = timeout
request_timeout_valid = True
except ValueError:
pass
if not request_timeout_valid:
utils.err(
(
"'{0}' is not a valid --request-timeout value, use "
"a positive integer"
).format(val)
)
logger = logging.getLogger("pcs")
logger.propagate = 0
logger.handlers = []
if (os.getuid() != 0) and (argv and argv[0] != "help") and not usefile:
_non_root_run(argv)
cmd_map = {
"resource": resource.resource_cmd,
"cluster": cluster.cluster_cmd,
"stonith": stonith.stonith_cmd,
"property": prop.property_cmd,
"constraint": constraint.constraint_cmd,
"acl": acl.acl_cmd,
"status": status.status_cmd,
"config": config.config_cmd,
"pcsd": pcsd.pcsd_cmd,
"node": node.node_cmd,
"quorum": quorum.quorum_cmd,
"qdevice": qdevice.qdevice_cmd,
"alert": alert.alert_cmd,
"booth": booth.booth_cmd,
"host": host.host_cmd,
"client": client.client_cmd,
"dr": dr.dr_cmd,
"tag": tag.tag_cmd,
"help": lambda lib, argv, modifiers: usage.main(),
}
try:
routing.create_router(cmd_map, [])(
utils.get_library_wrapper(), argv, utils.get_input_modifiers()
)
except LibraryError as e:
process_library_reports(e.args)
except errors.CmdLineInputError:
if argv and argv[0] in cmd_map:
usage.show(argv[0], [])
else:
usage.main()
sys.exit(1)
def config_restore_remote(infile_name, infile_obj):
"""
Commandline options:
* --request-timeout - timeout for HTTP requests
"""
extracted = {
"version.txt": "",
"corosync.conf": "",
}
try:
tarball = tarfile.open(infile_name, "r|*", infile_obj)
while True:
# next(tarball) does not work in python2.6
tar_member_info = tarball.next()
if tar_member_info is None:
break
if tar_member_info.name in extracted:
tar_member = tarball.extractfile(tar_member_info)
extracted[tar_member_info.name] = tar_member.read()
tar_member.close()
tarball.close()
except (tarfile.TarError, EnvironmentError) as e:
utils.err("unable to read the tarball: %s" % e)
config_backup_check_version(extracted["version.txt"])
node_list, report_list = get_existing_nodes_names(
utils.get_corosync_conf_facade(
conf_text=extracted["corosync.conf"].decode("utf-8")))
if report_list:
process_library_reports(report_list)
if not node_list:
utils.err("no nodes found in the tarball")
err_msgs = []
for node in node_list:
try:
retval, output = utils.checkStatus(node)
if retval != 0:
err_msgs.append(output)
continue
_status = json.loads(output)
if (_status["corosync"] or _status["pacemaker"] or
# not supported by older pcsd, do not fail if not present
_status.get("pacemaker_remote", False)):
err_msgs.append(
"Cluster is currently running on node %s. You need to stop "
"the cluster in order to restore the configuration." %
node)
continue
except (ValueError, NameError, LookupError):
err_msgs.append("unable to determine status of the node %s" % node)
if err_msgs:
for msg in err_msgs:
utils.err(msg, False)
sys.exit(1)
# Temporarily disable config files syncing thread in pcsd so it will not
# rewrite restored files. 10 minutes should be enough time to restore.
# If node returns HTTP 404 it does not support config syncing at all.
for node in node_list:
retval, output = utils.pauseConfigSyncing(node, 10 * 60)
if not (retval == 0 or "(HTTP error: 404)" in output):
utils.err(output)
if infile_obj:
infile_obj.seek(0)
tarball_data = infile_obj.read()
else:
with open(infile_name, "rb") as tarball:
tarball_data = tarball.read()
error_list = []
for node in node_list:
retval, error = utils.restoreConfig(node, tarball_data)
if retval != 0:
error_list.append(error)
if error_list:
utils.err("unable to restore all nodes\n" + "\n".join(error_list))
