def is_resource_managed(cluster_state, resource_id):
"""
Check if the resource is managed
etree cluster_state -- status of the cluster
string resource_id -- id of the resource
"""
primitive_list = cluster_state.xpath("""
.//resource[{predicate_id}]
|
.//group[{predicate_id}]/resource
""".format(predicate_id=_id_xpath_predicate(resource_id)))
if primitive_list:
for primitive in primitive_list:
if is_false(primitive.attrib.get("managed", "")):
return False
clone = find_parent(primitive, ["clone"])
if clone is not None and is_false(clone.attrib.get("managed", "")):
return False
return True
clone_list = cluster_state.xpath(
""".//clone[@id="{0}"]""".format(resource_id))
for clone in clone_list:
if is_false(clone.attrib.get("managed", "")):
return False
for primitive in clone.xpath(".//resource"):
if is_false(primitive.attrib.get("managed", "")):
return False
return True
raise ResourceNotFound(resource_id)
def test_false_is_false(self):
self.assertTrue(lib.is_false("false"))
self.assertTrue(lib.is_false("faLse"))
self.assertTrue(lib.is_false("off"))
self.assertTrue(lib.is_false("OFF"))
self.assertTrue(lib.is_false("no"))
self.assertTrue(lib.is_false("nO"))
self.assertTrue(lib.is_false("n"))
self.assertTrue(lib.is_false("N"))
self.assertTrue(lib.is_false("0"))
def test_false_is_false(self):
self.assertTrue(lib.is_false("false"))
self.assertTrue(lib.is_false("faLse"))
self.assertTrue(lib.is_false("off"))
self.assertTrue(lib.is_false("OFF"))
self.assertTrue(lib.is_false("no"))
self.assertTrue(lib.is_false("nO"))
self.assertTrue(lib.is_false("n"))
self.assertTrue(lib.is_false("N"))
self.assertTrue(lib.is_false("0"))
def status_stonith_check():
# We should read the default value from pacemaker. However that may slow
# pcs down as we need to run 'pengine metadata' to get it.
stonith_enabled = True
stonith_devices = []
stonith_devices_id_action = []
stonith_devices_id_method_cycle = []
sbd_running = False
cib = utils.get_cib_dom()
for conf in cib.getElementsByTagName("configuration"):
for crm_config in conf.getElementsByTagName("crm_config"):
for nvpair in crm_config.getElementsByTagName("nvpair"):
if (nvpair.getAttribute("name") == "stonith-enabled"
and is_false(nvpair.getAttribute("value"))):
stonith_enabled = False
break
if not stonith_enabled:
break
for resource in conf.getElementsByTagName("primitive"):
if resource.getAttribute("class") == "stonith":
stonith_devices.append(resource)
for attribs in resource.getElementsByTagName(
"instance_attributes"):
for nvpair in attribs.getElementsByTagName("nvpair"):
if (nvpair.getAttribute("name") == "action"
and nvpair.getAttribute("value")):
stonith_devices_id_action.append(
resource.getAttribute("id"))
if (nvpair.getAttribute("name") == "method"
and nvpair.getAttribute("value") == "cycle"):
stonith_devices_id_method_cycle.append(
resource.getAttribute("id"))
if not utils.usefile:
# check if SBD daemon is running
try:
sbd_running = utils.is_service_running(utils.cmd_runner(),
get_sbd_service_name())
except LibraryError:
pass
if stonith_enabled and not stonith_devices and not sbd_running:
print("WARNING: no stonith devices and stonith-enabled is not false")
if stonith_devices_id_action:
print(
"WARNING: following stonith devices have the 'action' option set, "
"it is recommended to set {0} instead: {1}".format(
", ".join(
["'{0}'".format(x) for x in _STONITH_ACTION_REPLACED_BY]),
", ".join(sorted(stonith_devices_id_action))))
if stonith_devices_id_method_cycle:
print(
"WARNING: following stonith devices have the 'method' option set "
"to 'cycle' which is potentially dangerous, please consider using "
"'onoff': {0}".format(", ".join(
sorted(stonith_devices_id_method_cycle))))
def is_resource_managed(cluster_state, resource_id):
"""
Check if the resource is managed
etree cluster_state -- status of the cluster
string resource_id -- id of the resource
"""
primitive_list = cluster_state.xpath(
"""
.//resource[{predicate_id}]
|
.//group[{predicate_id}]/resource
""".format(predicate_id=_id_xpath_predicate),
id=resource_id,
)
if primitive_list:
for primitive in primitive_list:
if is_false(primitive.attrib.get("managed", "")):
return False
parent = find_parent(primitive, ["clone", "bundle"])
if parent is not None and is_false(parent.attrib.get(
"managed", "")):
return False
return True
parent_list = cluster_state.xpath(
"""
.//clone[@id=$resource_id]
|
.//bundle[@id=$resource_id]
""",
resource_id=resource_id,
)
for parent in parent_list:
if is_false(parent.attrib.get("managed", "")):
return False
for primitive in parent.xpath(".//resource"):
if is_false(primitive.attrib.get("managed", "")):
return False
return True
raise ResourceNotFound(resource_id)
def is_stonith_enabled(crm_config_el: _Element) -> bool:
# We should read the default value from pacemaker. However, that may slow
# pcs down as we need to run 'pacemaker-schedulerd metadata' to get it.
stonith_enabled = True
# TODO properly support multiple cluster_property_set with rules
for nvpair in crm_config_el.iterfind(
"cluster_property_set/nvpair[@name='stonith-enabled']"):
if is_false(nvpair.get("value")):
stonith_enabled = False
break
return stonith_enabled
def is_resource_managed(cluster_state, resource_id):
"""
Check if the resource is managed
etree cluster_state -- status of the cluster
string resource_id -- id of the resource
"""
primitive_list = cluster_state.xpath("""
.//resource[{predicate_id}]
|
.//group[{predicate_id}]/resource
""".format(predicate_id=_id_xpath_predicate(resource_id))
)
if primitive_list:
for primitive in primitive_list:
if is_false(primitive.attrib.get("managed", "")):
return False
parent = find_parent(primitive, ["clone", "bundle"])
if (
parent is not None
and
is_false(parent.attrib.get("managed", ""))
):
return False
return True
parent_list = cluster_state.xpath("""
.//clone[@id="{0}"]
|
.//bundle[@id="{0}"]
""".format(resource_id)
)
for parent in parent_list:
if is_false(parent.attrib.get("managed", "")):
return False
for primitive in parent.xpath(".//resource"):
if is_false(primitive.attrib.get("managed", "")):
return False
return True
raise ResourceNotFound(resource_id)
def test_nonfalse_is_not_false(self):
self.assertFalse(lib.is_false(""))
self.assertFalse(lib.is_false(" 0 "))
self.assertFalse(lib.is_false("x"))
self.assertFalse(lib.is_false("-1"))
self.assertFalse(lib.is_false("10"))
self.assertFalse(lib.is_false("heck no"))
def test_nonfalse_is_not_false(self):
self.assertFalse(lib.is_false(""))
self.assertFalse(lib.is_false(" 0 "))
self.assertFalse(lib.is_false("x"))
self.assertFalse(lib.is_false("-1"))
self.assertFalse(lib.is_false("10"))
self.assertFalse(lib.is_false("heck no"))
def status_stonith_check(modifiers):
"""
Commandline options:
* -f - CIB file, to get stonith devices and cluster property
stonith-enabled from CIB, to determine whenever we are working with
files or cluster
"""
# pylint: disable=too-many-nested-blocks
# We should read the default value from pacemaker. However that may slow
# pcs down as we need to run 'pacemaker-schedulerd metadata' to get it.
warnings = []
stonith_enabled = True
stonith_devices = []
stonith_devices_id_action = []
stonith_devices_id_method_cycle = []
sbd_running = False
cib = utils.get_cib_dom()
for conf in cib.getElementsByTagName("configuration"):
for crm_config in conf.getElementsByTagName("crm_config"):
for nvpair in crm_config.getElementsByTagName("nvpair"):
if (nvpair.getAttribute("name") == "stonith-enabled"
and is_false(nvpair.getAttribute("value"))):
stonith_enabled = False
break
if not stonith_enabled:
break
for resource_el in conf.getElementsByTagName("primitive"):
if resource_el.getAttribute("class") == "stonith":
stonith_devices.append(resource_el)
for attribs in resource_el.getElementsByTagName(
"instance_attributes"):
for nvpair in attribs.getElementsByTagName("nvpair"):
if (nvpair.getAttribute("name") == "action"
and nvpair.getAttribute("value")):
stonith_devices_id_action.append(
resource_el.getAttribute("id"))
if (nvpair.getAttribute("name") == "method"
and nvpair.getAttribute("value") == "cycle"):
stonith_devices_id_method_cycle.append(
resource_el.getAttribute("id"))
if not modifiers.is_specified("-f"):
# check if SBD daemon is running
try:
sbd_running = utils.is_service_running(utils.cmd_runner(),
get_sbd_service_name())
except LibraryError:
pass
if stonith_enabled and not stonith_devices and not sbd_running:
warnings.append("No stonith devices and stonith-enabled is not false")
if stonith_devices_id_action:
warnings.append(
"Following stonith devices have the 'action' option set, "
"it is recommended to set {0} instead: {1}".format(
", ".join(
["'{0}'".format(x) for x in _STONITH_ACTION_REPLACED_BY]),
", ".join(sorted(stonith_devices_id_action))))
if stonith_devices_id_method_cycle:
warnings.append(
"Following stonith devices have the 'method' option set "
"to 'cycle' which is potentially dangerous, please consider using "
"'onoff': {0}".format(", ".join(
sorted(stonith_devices_id_method_cycle))))
return warnings
