def dom_rule_add(dom_element, options, rule_argv):
# pylint: disable=too-many-branches
"""
Commandline options: no options
"""
# validate options
if options.get("score") and options.get("score-attribute"):
utils.err("can not specify both score and score-attribute")
if options.get("score") and not utils.is_score(options["score"]):
# preserving legacy behaviour
print(
"Warning: invalid score '%s', setting score-attribute=pingd instead"
% options["score"])
options["score-attribute"] = "pingd"
options["score"] = None
if options.get("role") and options["role"] not in ["master", "slave"]:
utils.err("invalid role '%s', use 'master' or 'slave'" %
options["role"])
if options.get("id"):
id_valid, id_error = utils.validate_xml_id(options["id"], "rule id")
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(dom_element.ownerDocument, options["id"]):
utils.err("id '%s' is already in use, please specify another one" %
options["id"])
# parse rule
if not rule_argv:
utils.err("no rule expression was specified")
try:
dom_rule = CibBuilder().build(
dom_element,
RuleParser().parse(TokenPreprocessor().run(rule_argv)),
options.get("id"),
)
except SyntaxError as e:
utils.err("'%s' is not a valid rule expression: %s" %
(" ".join(rule_argv), e))
except UnexpectedEndOfInput as e:
utils.err(
"'%s' is not a valid rule expression: unexpected end of rule" %
" ".join(rule_argv))
except (ParserException, CibBuilderException) as e:
utils.err("'%s' is not a valid rule expression" % " ".join(rule_argv))
# add options into rule xml
if not options.get("score") and not options.get("score-attribute"):
options["score"] = "INFINITY"
for name, value in options.items():
if name != "id" and value is not None:
dom_rule.setAttribute(name, value)
# score or score-attribute is required for the nested rules in order to have
# valid CIB, pacemaker does not use the score of the nested rules
for rule in dom_rule.getElementsByTagName("rule"):
rule.setAttribute("score", "0")
if dom_element.hasAttribute("score"):
dom_element.removeAttribute("score")
if dom_element.hasAttribute("node"):
dom_element.removeAttribute("node")
return dom_element
def location_rule(argv):
if len(argv) < 3:
usage.constraint(["location", "rule"])
sys.exit(1)
res_name = argv.pop(0)
resource_valid, resource_error, correct_id \
= utils.validate_constraint_resource(utils.get_cib_dom(), res_name)
if "--autocorrect" in utils.pcs_options and correct_id:
res_name = correct_id
elif not resource_valid:
utils.err(resource_error)
argv.pop(0) # pop "rule"
options, rule_argv = rule_utils.parse_argv(argv, {"constraint-id": None, "resource-discovery": None,})
# If resource-discovery is specified, we use it with the rsc_location
# element not the rule
if "resource-discovery" in options and options["resource-discovery"]:
utils.checkAndUpgradeCIB(2,2,0)
cib, constraints = getCurrentConstraints(utils.get_cib_dom())
lc = cib.createElement("rsc_location")
lc.setAttribute("resource-discovery", options.pop("resource-discovery"))
else:
cib, constraints = getCurrentConstraints(utils.get_cib_dom())
lc = cib.createElement("rsc_location")
constraints.appendChild(lc)
if options.get("constraint-id"):
id_valid, id_error = utils.validate_xml_id(
options["constraint-id"], 'constraint id'
)
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(cib, options["constraint-id"]):
utils.err(
"id '%s' is already in use, please specify another one"
% options["constraint-id"]
)
lc.setAttribute("id", options["constraint-id"])
del options["constraint-id"]
else:
lc.setAttribute("id", utils.find_unique_id(cib, "location-" + res_name))
lc.setAttribute("rsc", res_name)
rule_utils.dom_rule_add(lc, options, rule_argv)
location_rule_check_duplicates(constraints, lc)
utils.replace_cib_configuration(cib)
def location_rule(argv):
if len(argv) < 3:
usage.constraint(["location", "rule"])
sys.exit(1)
res_name = argv.pop(0)
resource_valid, resource_error, correct_id \
= utils.validate_constraint_resource(utils.get_cib_dom(), res_name)
if "--autocorrect" in utils.pcs_options and correct_id:
res_name = correct_id
elif not resource_valid:
utils.err(resource_error)
argv.pop(0) # pop "rule"
options, rule_argv = rule_utils.parse_argv(argv, {"constraint-id": None, "resource-discovery": None,})
# If resource-discovery is specified, we use it with the rsc_location
# element not the rule
if "resource-discovery" in options and options["resource-discovery"]:
utils.checkAndUpgradeCIB(2,2,0)
cib, constraints = getCurrentConstraints(utils.get_cib_dom())
lc = cib.createElement("rsc_location")
lc.setAttribute("resource-discovery", options.pop("resource-discovery"))
else:
cib, constraints = getCurrentConstraints(utils.get_cib_dom())
lc = cib.createElement("rsc_location")
constraints.appendChild(lc)
if options.get("constraint-id"):
id_valid, id_error = utils.validate_xml_id(
options["constraint-id"], 'constraint id'
)
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(cib, options["constraint-id"]):
utils.err(
"id '%s' is already in use, please specify another one"
% options["constraint-id"]
)
lc.setAttribute("id", options["constraint-id"])
del options["constraint-id"]
else:
lc.setAttribute("id", utils.find_unique_id(cib, "location-" + res_name))
lc.setAttribute("rsc", res_name)
rule_utils.dom_rule_add(lc, options, rule_argv)
location_rule_check_duplicates(constraints, lc)
utils.replace_cib_configuration(cib)
def location_add(lib, argv, modifiers):
"""
Options:
* --force - allow unknown options, allow constraint for any resource type
* -f - CIB file
"""
del lib
modifiers.ensure_only_supported("--force", "-f")
if len(argv) < 4:
raise CmdLineInputError()
constraint_id = argv.pop(0)
rsc_type, rsc_value = parse_args.parse_typed_arg(
argv.pop(0), [RESOURCE_TYPE_RESOURCE, RESOURCE_TYPE_REGEXP],
RESOURCE_TYPE_RESOURCE)
node = argv.pop(0)
score = argv.pop(0)
options = []
# For now we only allow setting resource-discovery
if argv:
for arg in argv:
if '=' in arg:
options.append(arg.split('=', 1))
else:
raise CmdLineInputError(f"bad option '{arg}'")
if (options[-1][0] != "resource-discovery"
and not modifiers.get("--force")):
utils.err("bad option '%s', use --force to override" %
options[-1][0])
id_valid, id_error = utils.validate_xml_id(constraint_id, 'constraint id')
if not id_valid:
utils.err(id_error)
if not utils.is_score(score):
utils.err("invalid score '%s', use integer or INFINITY or -INFINITY" %
score)
required_version = None
if [x for x in options if x[0] == "resource-discovery"]:
required_version = 2, 2, 0
if rsc_type == RESOURCE_TYPE_REGEXP:
required_version = 2, 6, 0
if required_version:
dom = utils.cluster_upgrade_to_version(required_version)
else:
dom = utils.get_cib_dom()
if rsc_type == RESOURCE_TYPE_RESOURCE:
rsc_valid, rsc_error, dummy_correct_id = (
utils.validate_constraint_resource(dom, rsc_value))
if not rsc_valid:
utils.err(rsc_error)
# Verify that specified node exists in the cluster
if not (modifiers.is_specified("-f") or modifiers.get("--force")):
lib_env = utils.get_lib_env()
existing_nodes = get_existing_nodes_names(
corosync_conf=lib_env.get_corosync_conf(),
cib=lib_env.get_cib(),
)
if node not in existing_nodes:
raise error(f"Node '{node}' does not seem to be in the cluster"
", use --force to override")
else:
warn(LOCATION_NODE_VALIDATION_SKIP_MSG)
# Verify current constraint doesn't already exist
# If it does we replace it with the new constraint
dummy_dom, constraintsElement = getCurrentConstraints(dom)
elementsToRemove = []
# If the id matches, or the rsc & node match, then we replace/remove
for rsc_loc in constraintsElement.getElementsByTagName('rsc_location'):
# pylint: disable=too-many-boolean-expressions
if (rsc_loc.getAttribute("id") == constraint_id
or (rsc_loc.getAttribute("node") == node and
((RESOURCE_TYPE_RESOURCE == rsc_type
and rsc_loc.getAttribute("rsc") == rsc_value) or
(RESOURCE_TYPE_REGEXP == rsc_type
and rsc_loc.getAttribute("rsc-pattern") == rsc_value)))):
elementsToRemove.append(rsc_loc)
for etr in elementsToRemove:
constraintsElement.removeChild(etr)
element = dom.createElement("rsc_location")
element.setAttribute("id", constraint_id)
if rsc_type == RESOURCE_TYPE_RESOURCE:
element.setAttribute("rsc", rsc_value)
elif rsc_type == RESOURCE_TYPE_REGEXP:
element.setAttribute("rsc-pattern", rsc_value)
element.setAttribute("node", node)
element.setAttribute("score", score)
for option in options:
element.setAttribute(option[0], option[1])
constraintsElement.appendChild(element)
utils.replace_cib_configuration(dom)
def order_add(argv, modifiers):
"""
Commandline options:
* -f - CIB file
* --force - allow constraint for any resource, allow duplicate constraints
"""
if len(argv) < 2:
raise CmdLineInputError()
resource1 = argv.pop(0)
resource2 = argv.pop(0)
cib_dom = utils.get_cib_dom()
resource_valid, resource_error, dummy_correct_id \
= utils.validate_constraint_resource(cib_dom, resource1)
if not resource_valid:
utils.err(resource_error)
resource_valid, resource_error, dummy_correct_id \
= utils.validate_constraint_resource(cib_dom, resource2)
if not resource_valid:
utils.err(resource_error)
order_options = []
id_specified = False
sym = None
for arg in argv:
if arg == "symmetrical":
sym = "true"
elif arg == "nonsymmetrical":
sym = "false"
elif "=" in arg:
name, value = arg.split("=", 1)
if name == "id":
id_valid, id_error = utils.validate_xml_id(
value, 'constraint id')
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(cib_dom, value):
utils.err(
"id '%s' is already in use, please specify another one"
% value)
id_specified = True
order_options.append((name, value))
elif name == "symmetrical":
if value.lower() in OPTIONS_SYMMETRICAL:
sym = value.lower()
else:
utils.err(
"invalid symmetrical value '%s', allowed values are: %s"
% (value, ", ".join(OPTIONS_SYMMETRICAL)))
else:
order_options.append((name, value))
if sym:
order_options.append(("symmetrical", sym))
options = ""
if order_options:
options = " (Options: %s)" % " ".join([
"%s=%s" % (name, value)
for name, value in order_options if name not in ("kind", "score")
])
scorekind = "kind: Mandatory"
id_suffix = "mandatory"
for opt in order_options:
if opt[0] == "score":
scorekind = "score: " + opt[1]
id_suffix = opt[1]
break
if opt[0] == "kind":
scorekind = "kind: " + opt[1]
id_suffix = opt[1]
break
if not id_specified:
order_id = "order-" + resource1 + "-" + resource2 + "-" + id_suffix
order_id = utils.find_unique_id(cib_dom, order_id)
order_options.append(("id", order_id))
(dom, constraintsElement) = getCurrentConstraints()
element = dom.createElement("rsc_order")
element.setAttribute("first", resource1)
element.setAttribute("then", resource2)
for order_opt in order_options:
element.setAttribute(order_opt[0], order_opt[1])
constraintsElement.appendChild(element)
if not modifiers.get("--force"):
duplicates = order_find_duplicates(constraintsElement, element)
if duplicates:
utils.err(
"duplicate constraint already exists, use --force to override\n"
+ "\n".join([
" " + constraint_order.console_report.constraint_plain(
{"options": dict(dup.attributes.items())}, True)
for dup in duplicates
]))
print("Adding " + resource1 + " " + resource2 + " (" + scorekind + ")" +
options)
utils.replace_cib_configuration(dom)
def colocation_add(lib, argv, modifiers):
"""
Options:
* -f - CIB file
* --force - allow constraint on any resource, allow duplicate constraints
"""
del lib
modifiers.ensure_only_supported("-f", "--force")
if len(argv) < 3:
raise CmdLineInputError()
role1 = ""
role2 = ""
if argv[2] == "with":
role1 = argv.pop(0).lower().capitalize()
resource1 = argv.pop(0)
elif argv[1] == "with":
resource1 = argv.pop(0)
else:
raise CmdLineInputError()
argv.pop(0) # Pop 'with'
if not argv:
raise CmdLineInputError()
elif len(argv) == 1:
resource2 = argv.pop(0)
else:
if utils.is_score_or_opt(argv[1]):
resource2 = argv.pop(0)
else:
role2 = argv.pop(0).lower().capitalize()
resource2 = argv.pop(0)
score, nv_pairs = parse_score_options(argv)
cib_dom = utils.get_cib_dom()
resource_valid, resource_error, dummy_correct_id \
= utils.validate_constraint_resource(cib_dom, resource1)
if not resource_valid:
utils.err(resource_error)
resource_valid, resource_error, dummy_correct_id \
= utils.validate_constraint_resource(cib_dom, resource2)
if not resource_valid:
utils.err(resource_error)
id_in_nvpairs = None
for name, value in nv_pairs:
if name == "id":
id_valid, id_error = utils.validate_xml_id(value, 'constraint id')
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(cib_dom, value):
utils.err(
"id '%s' is already in use, please specify another one" %
value)
id_in_nvpairs = True
if not id_in_nvpairs:
nv_pairs.append(
("id",
utils.find_unique_id(
cib_dom,
"colocation-%s-%s-%s" % (resource1, resource2, score))))
(dom, constraintsElement) = getCurrentConstraints(cib_dom)
# If one role is specified, the other should default to "started"
if role1 != "" and role2 == "":
role2 = DEFAULT_ROLE
if role2 != "" and role1 == "":
role1 = DEFAULT_ROLE
element = dom.createElement("rsc_colocation")
element.setAttribute("rsc", resource1)
element.setAttribute("with-rsc", resource2)
element.setAttribute("score", score)
if role1 != "":
element.setAttribute("rsc-role", role1)
if role2 != "":
element.setAttribute("with-rsc-role", role2)
for nv_pair in nv_pairs:
element.setAttribute(nv_pair[0], nv_pair[1])
if not modifiers.get("--force"):
duplicates = colocation_find_duplicates(constraintsElement, element)
if duplicates:
utils.err(
"duplicate constraint already exists, use --force to override\n"
+ "\n".join([
" " +
constraint_colocation.console_report.constraint_plain(
{"options": dict(dup.attributes.items())}, True)
for dup in duplicates
]))
constraintsElement.appendChild(element)
utils.replace_cib_configuration(dom)
def location_add(argv,rm=False):
if len(argv) < 4 and (rm == False or len(argv) < 1):
usage.constraint()
sys.exit(1)
constraint_id = argv.pop(0)
# If we're removing, we only care about the id
if (rm == True):
resource_name = ""
node = ""
score = ""
else:
id_valid, id_error = utils.validate_xml_id(constraint_id, 'constraint id')
if not id_valid:
utils.err(id_error)
resource_name = argv.pop(0)
node = argv.pop(0)
score = argv.pop(0)
options = []
# For now we only allow setting resource-discovery
if len(argv) > 0:
for arg in argv:
if '=' in arg:
options.append(arg.split('=',1))
else:
print("Error: bad option '%s'" % arg)
usage.constraint(["location add"])
sys.exit(1)
if options[-1][0] != "resource-discovery" and "--force" not in utils.pcs_options:
utils.err("bad option '%s', use --force to override" % options[-1][0])
resource_valid, resource_error, correct_id \
= utils.validate_constraint_resource(
utils.get_cib_dom(), resource_name
)
if "--autocorrect" in utils.pcs_options and correct_id:
resource_name = correct_id
elif not resource_valid:
utils.err(resource_error)
if not utils.is_score(score):
utils.err("invalid score '%s', use integer or INFINITY or -INFINITY" % score)
# Verify current constraint doesn't already exist
# If it does we replace it with the new constraint
(dom,constraintsElement) = getCurrentConstraints()
elementsToRemove = []
# If the id matches, or the rsc & node match, then we replace/remove
for rsc_loc in constraintsElement.getElementsByTagName('rsc_location'):
if (constraint_id == rsc_loc.getAttribute("id")) or \
(rsc_loc.getAttribute("rsc") == resource_name and \
rsc_loc.getAttribute("node") == node and not rm):
elementsToRemove.append(rsc_loc)
for etr in elementsToRemove:
constraintsElement.removeChild(etr)
if (rm == True and len(elementsToRemove) == 0):
utils.err("resource location id: " + constraint_id + " not found.")
if (not rm):
element = dom.createElement("rsc_location")
element.setAttribute("id",constraint_id)
element.setAttribute("rsc",resource_name)
element.setAttribute("node",node)
element.setAttribute("score",score)
for option in options:
element.setAttribute(option[0], option[1])
constraintsElement.appendChild(element)
utils.replace_cib_configuration(dom)
def location_rule(argv):
if len(argv) < 3:
usage.constraint(["location", "rule"])
sys.exit(1)
rsc_type, rsc_value = parse_args.parse_typed_arg(
argv.pop(0),
[RESOURCE_TYPE_RESOURCE, RESOURCE_TYPE_REGEXP],
RESOURCE_TYPE_RESOURCE
)
argv.pop(0) # pop "rule"
options, rule_argv = rule_utils.parse_argv(
argv,
{
"constraint-id": None,
"resource-discovery": None,
}
)
resource_discovery = (
"resource-discovery" in options
and
options["resource-discovery"]
)
required_version = None
if resource_discovery:
required_version = 2, 2, 0
if rsc_type == RESOURCE_TYPE_REGEXP:
required_version = 2, 6, 0
if required_version:
dom = utils.cluster_upgrade_to_version(required_version)
else:
dom = utils.get_cib_dom()
if rsc_type == RESOURCE_TYPE_RESOURCE:
rsc_valid, rsc_error, correct_id = utils.validate_constraint_resource(
dom, rsc_value
)
if "--autocorrect" in utils.pcs_options and correct_id:
rsc_value = correct_id
elif not rsc_valid:
utils.err(rsc_error)
cib, constraints = getCurrentConstraints(dom)
lc = cib.createElement("rsc_location")
# If resource-discovery is specified, we use it with the rsc_location
# element not the rule
if resource_discovery:
lc.setAttribute("resource-discovery", options.pop("resource-discovery"))
constraints.appendChild(lc)
if options.get("constraint-id"):
id_valid, id_error = utils.validate_xml_id(
options["constraint-id"], 'constraint id'
)
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(dom, options["constraint-id"]):
utils.err(
"id '%s' is already in use, please specify another one"
% options["constraint-id"]
)
lc.setAttribute("id", options["constraint-id"])
del options["constraint-id"]
else:
lc.setAttribute(
"id",
utils.find_unique_id(dom, sanitize_id("location-" + rsc_value))
)
if rsc_type == RESOURCE_TYPE_RESOURCE:
lc.setAttribute("rsc", rsc_value)
elif rsc_type == RESOURCE_TYPE_REGEXP:
lc.setAttribute("rsc-pattern", rsc_value)
rule_utils.dom_rule_add(lc, options, rule_argv)
location_rule_check_duplicates(constraints, lc)
utils.replace_cib_configuration(cib)
def location_add(argv, rm=False):
if rm:
location_remove(argv)
return
if len(argv) < 4:
usage.constraint(["location add"])
sys.exit(1)
constraint_id = argv.pop(0)
rsc_type, rsc_value = parse_args.parse_typed_arg(
argv.pop(0), [RESOURCE_TYPE_RESOURCE, RESOURCE_TYPE_REGEXP],
RESOURCE_TYPE_RESOURCE)
node = argv.pop(0)
score = argv.pop(0)
options = []
# For now we only allow setting resource-discovery
if len(argv) > 0:
for arg in argv:
if '=' in arg:
options.append(arg.split('=', 1))
else:
print("Error: bad option '%s'" % arg)
usage.constraint(["location add"])
sys.exit(1)
if options[-1][
0] != "resource-discovery" and "--force" not in utils.pcs_options:
utils.err("bad option '%s', use --force to override" %
options[-1][0])
id_valid, id_error = utils.validate_xml_id(constraint_id, 'constraint id')
if not id_valid:
utils.err(id_error)
if not utils.is_score(score):
utils.err("invalid score '%s', use integer or INFINITY or -INFINITY" %
score)
required_version = None
if [x for x in options if x[0] == "resource-discovery"]:
required_version = 2, 2, 0
if rsc_type == RESOURCE_TYPE_REGEXP:
required_version = 2, 6, 0
if required_version:
dom = utils.cluster_upgrade_to_version(required_version)
else:
dom = utils.get_cib_dom()
if rsc_type == RESOURCE_TYPE_RESOURCE:
rsc_valid, rsc_error, correct_id = utils.validate_constraint_resource(
dom, rsc_value)
if "--autocorrect" in utils.pcs_options and correct_id:
rsc_value = correct_id
elif not rsc_valid:
utils.err(rsc_error)
# Verify current constraint doesn't already exist
# If it does we replace it with the new constraint
dummy_dom, constraintsElement = getCurrentConstraints(dom)
elementsToRemove = []
# If the id matches, or the rsc & node match, then we replace/remove
for rsc_loc in constraintsElement.getElementsByTagName('rsc_location'):
if (rsc_loc.getAttribute("id") == constraint_id
or (rsc_loc.getAttribute("node") == node and
((RESOURCE_TYPE_RESOURCE == rsc_type
and rsc_loc.getAttribute("rsc") == rsc_value) or
(RESOURCE_TYPE_REGEXP == rsc_type
and rsc_loc.getAttribute("rsc-pattern") == rsc_value)))):
elementsToRemove.append(rsc_loc)
for etr in elementsToRemove:
constraintsElement.removeChild(etr)
element = dom.createElement("rsc_location")
element.setAttribute("id", constraint_id)
if rsc_type == RESOURCE_TYPE_RESOURCE:
element.setAttribute("rsc", rsc_value)
elif rsc_type == RESOURCE_TYPE_REGEXP:
element.setAttribute("rsc-pattern", rsc_value)
element.setAttribute("node", node)
element.setAttribute("score", score)
for option in options:
element.setAttribute(option[0], option[1])
constraintsElement.appendChild(element)
utils.replace_cib_configuration(dom)
def colocation_add(lib, argv, modifiers):
"""
Options:
* -f - CIB file
* --force - allow constraint on any resource, allow duplicate constraints
"""
def _parse_score_options(argv):
# When passed an array of arguments if the first argument doesn't have
# an '=' then it's the score, otherwise they're all arguments. Return a
# tuple with the score and array of name,value pairs
"""
Commandline options: no options
"""
if not argv:
return SCORE_INFINITY, []
score = SCORE_INFINITY if "=" in argv[0] else argv.pop(0)
# create a list of 2-tuples (name, value)
arg_array = [
parse_args.split_option(arg, allow_empty_value=False)
for arg in argv
]
return score, arg_array
def _validate_and_prepare_role(role):
role_cleaned = role.lower().capitalize()
if role_cleaned not in RESOURCE_ROLES:
utils.err(
"invalid role value '{0}', allowed values are: '{1}'".format(
role, "', '".join(RESOURCE_ROLES)))
return role_cleaned
del lib
modifiers.ensure_only_supported("-f", "--force")
if len(argv) < 3:
raise CmdLineInputError()
role1 = ""
role2 = ""
if argv[2] == "with":
role1 = _validate_and_prepare_role(argv.pop(0))
resource1 = argv.pop(0)
elif argv[1] == "with":
resource1 = argv.pop(0)
else:
raise CmdLineInputError()
if argv.pop(0) != "with":
raise CmdLineInputError()
if "with" in argv:
raise CmdLineInputError(
message="Multiple 'with's cannot be specified.",
hint=(
"Use the 'pcs constraint colocation set' command if you want "
"to create a constraint for more than two resources."),
show_both_usage_and_message=True)
if not argv:
raise CmdLineInputError()
if len(argv) == 1:
resource2 = argv.pop(0)
else:
if utils.is_score_or_opt(argv[1]):
resource2 = argv.pop(0)
else:
role2 = _validate_and_prepare_role(argv.pop(0))
resource2 = argv.pop(0)
score, nv_pairs = _parse_score_options(argv)
cib_dom = utils.get_cib_dom()
_validate_constraint_resource(cib_dom, resource1)
_validate_constraint_resource(cib_dom, resource2)
id_in_nvpairs = None
for name, value in nv_pairs:
if name == "id":
id_valid, id_error = utils.validate_xml_id(value, 'constraint id')
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(cib_dom, value):
utils.err(
"id '%s' is already in use, please specify another one" %
value)
id_in_nvpairs = True
if not id_in_nvpairs:
nv_pairs.append(
("id",
utils.find_unique_id(
cib_dom,
"colocation-%s-%s-%s" % (resource1, resource2, score))))
(dom, constraintsElement) = getCurrentConstraints(cib_dom)
# If one role is specified, the other should default to "started"
if role1 != "" and role2 == "":
role2 = DEFAULT_ROLE
if role2 != "" and role1 == "":
role1 = DEFAULT_ROLE
element = dom.createElement("rsc_colocation")
element.setAttribute("rsc", resource1)
element.setAttribute("with-rsc", resource2)
element.setAttribute("score", score)
if role1 != "":
element.setAttribute("rsc-role", role1)
if role2 != "":
element.setAttribute("with-rsc-role", role2)
for nv_pair in nv_pairs:
element.setAttribute(nv_pair[0], nv_pair[1])
if not modifiers.get("--force"):
duplicates = colocation_find_duplicates(constraintsElement, element)
if duplicates:
utils.err(
"duplicate constraint already exists, use --force to override\n"
+ "\n".join([
" " +
constraint_colocation.console_report.constraint_plain(
{"options": dict(dup.attributes.items())}, True)
for dup in duplicates
]))
constraintsElement.appendChild(element)
utils.replace_cib_configuration(dom)
def location_add(argv,rm=False):
if len(argv) < 4 and (rm == False or len(argv) < 1):
usage.constraint()
sys.exit(1)
constraint_id = argv.pop(0)
# If we're removing, we only care about the id
if (rm == True):
resource_name = ""
node = ""
score = ""
else:
id_valid, id_error = utils.validate_xml_id(constraint_id, 'constraint id')
if not id_valid:
utils.err(id_error)
resource_name = argv.pop(0)
node = argv.pop(0)
score = argv.pop(0)
options = []
# For now we only allow setting resource-discovery
if len(argv) > 0:
for arg in argv:
if '=' in arg:
options.append(arg.split('=',1))
else:
print("Error: bad option '%s'" % arg)
usage.constraint(["location add"])
sys.exit(1)
if options[-1][0] != "resource-discovery" and "--force" not in utils.pcs_options:
utils.err("bad option '%s', use --force to override" % options[-1][0])
resource_valid, resource_error, correct_id \
= utils.validate_constraint_resource(
utils.get_cib_dom(), resource_name
)
if "--autocorrect" in utils.pcs_options and correct_id:
resource_name = correct_id
elif not resource_valid:
utils.err(resource_error)
if not utils.is_score(score):
utils.err("invalid score '%s', use integer or INFINITY or -INFINITY" % score)
# Verify current constraint doesn't already exist
# If it does we replace it with the new constraint
(dom,constraintsElement) = getCurrentConstraints()
elementsToRemove = []
# If the id matches, or the rsc & node match, then we replace/remove
for rsc_loc in constraintsElement.getElementsByTagName('rsc_location'):
if (constraint_id == rsc_loc.getAttribute("id")) or \
(rsc_loc.getAttribute("rsc") == resource_name and \
rsc_loc.getAttribute("node") == node and not rm):
elementsToRemove.append(rsc_loc)
for etr in elementsToRemove:
constraintsElement.removeChild(etr)
if (rm == True and len(elementsToRemove) == 0):
utils.err("resource location id: " + constraint_id + " not found.")
if (not rm):
element = dom.createElement("rsc_location")
element.setAttribute("id",constraint_id)
element.setAttribute("rsc",resource_name)
element.setAttribute("node",node)
element.setAttribute("score",score)
for option in options:
element.setAttribute(option[0], option[1])
constraintsElement.appendChild(element)
utils.replace_cib_configuration(dom)
def order_set(argv):
setoptions = []
for i in range(len(argv)):
if argv[i] == "setoptions":
setoptions = argv[i+1:]
argv[i:] = []
break
argv.insert(0, "set")
resource_sets = set_args_into_array(argv)
if not check_empty_resource_sets(resource_sets):
usage.constraint(["order set"])
sys.exit(1)
cib, constraints = getCurrentConstraints(utils.get_cib_dom())
attributes = []
id_specified = False
for opt in setoptions:
if "=" not in opt:
utils.err("missing value of '%s' option" % opt)
name, value = opt.split("=", 1)
if name == "id":
id_valid, id_error = utils.validate_xml_id(value, 'constraint id')
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(cib, value):
utils.err(
"id '%s' is already in use, please specify another one"
% value
)
id_specified = True
attributes.append((name, value))
elif name == "kind":
normalized_value = value.lower().capitalize()
if normalized_value not in OPTIONS_KIND:
utils.err(
"invalid kind value '%s', allowed values are: %s"
% (value, ", ".join(OPTIONS_KIND))
)
attributes.append((name, normalized_value))
elif name == "symmetrical":
if value.lower() not in OPTIONS_SYMMETRICAL:
utils.err(
"invalid symmetrical value '%s', allowed values are: %s"
% (value, ", ".join(OPTIONS_SYMMETRICAL))
)
attributes.append((name, value.lower()))
else:
utils.err(
"invalid option '%s', allowed options are: %s"
% (name, "kind, symmetrical, id")
)
if not id_specified:
order_id = "pcs_rsc_order"
for a in argv:
if "=" not in a:
order_id += "_" + a
attributes.append(("id", utils.find_unique_id(cib, order_id)))
rsc_order = cib.createElement("rsc_order")
for name, value in attributes:
rsc_order.setAttribute(name, value)
set_add_resource_sets(rsc_order, resource_sets, cib)
constraints.appendChild(rsc_order)
utils.replace_cib_configuration(cib)
def colocation_set(argv):
setoptions = []
for i in range(len(argv)):
if argv[i] == "setoptions":
setoptions = argv[i+1:]
argv[i:] = []
break
argv.insert(0, "set")
resource_sets = set_args_into_array(argv)
if not check_empty_resource_sets(resource_sets):
usage.constraint(["colocation set"])
sys.exit(1)
cib, constraints = getCurrentConstraints(utils.get_cib_dom())
attributes = []
score_options = ("score", "score-attribute", "score-attribute-mangle")
score_specified = False
id_specified = False
for opt in setoptions:
if "=" not in opt:
utils.err("missing value of '%s' option" % opt)
name, value = opt.split("=", 1)
if name == "id":
id_valid, id_error = utils.validate_xml_id(value, 'constraint id')
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(cib, value):
utils.err(
"id '%s' is already in use, please specify another one"
% value
)
id_specified = True
attributes.append((name, value))
elif name in score_options:
if score_specified:
utils.err("you cannot specify multiple score options")
if name == "score" and not utils.is_score(value):
utils.err(
"invalid score '%s', use integer or INFINITY or -INFINITY"
% value
)
score_specified = True
attributes.append((name, value))
else:
utils.err(
"invalid option '%s', allowed options are: %s"
% (name, ", ".join(score_options + ("id",)))
)
if not score_specified:
attributes.append(("score", "INFINITY"))
if not id_specified:
colocation_id = "pcs_rsc_colocation"
for a in argv:
if "=" not in a:
colocation_id += "_" + a
attributes.append(("id", utils.find_unique_id(cib, colocation_id)))
rsc_colocation = cib.createElement("rsc_colocation")
for name, value in attributes:
rsc_colocation.setAttribute(name, value)
set_add_resource_sets(rsc_colocation, resource_sets, cib)
constraints.appendChild(rsc_colocation)
utils.replace_cib_configuration(cib)
def location_rule(lib, argv, modifiers):
"""
Options:
* -f - CIB file
* --force - allow constraint on any resource type, allow duplicate
constraints
"""
del lib
modifiers.ensure_only_supported("-f", "--force")
if len(argv) < 3:
usage.constraint(["location", "rule"])
sys.exit(1)
rsc_type, rsc_value = parse_args.parse_typed_arg(
argv.pop(0), [RESOURCE_TYPE_RESOURCE, RESOURCE_TYPE_REGEXP],
RESOURCE_TYPE_RESOURCE)
argv.pop(0) # pop "rule"
options, rule_argv = rule_utils.parse_argv(argv, {
"constraint-id": None,
"resource-discovery": None,
})
resource_discovery = ("resource-discovery" in options
and options["resource-discovery"])
required_version = None
if resource_discovery:
required_version = 2, 2, 0
if rsc_type == RESOURCE_TYPE_REGEXP:
required_version = 2, 6, 0
if required_version:
dom = utils.cluster_upgrade_to_version(required_version)
else:
dom = utils.get_cib_dom()
if rsc_type == RESOURCE_TYPE_RESOURCE:
rsc_valid, rsc_error, dummy_correct_id = (
utils.validate_constraint_resource(dom, rsc_value))
if not rsc_valid:
utils.err(rsc_error)
cib, constraints = getCurrentConstraints(dom)
lc = cib.createElement("rsc_location")
# If resource-discovery is specified, we use it with the rsc_location
# element not the rule
if resource_discovery:
lc.setAttribute("resource-discovery",
options.pop("resource-discovery"))
constraints.appendChild(lc)
if options.get("constraint-id"):
id_valid, id_error = utils.validate_xml_id(options["constraint-id"],
'constraint id')
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(dom, options["constraint-id"]):
utils.err("id '%s' is already in use, please specify another one" %
options["constraint-id"])
lc.setAttribute("id", options["constraint-id"])
del options["constraint-id"]
else:
lc.setAttribute(
"id",
utils.find_unique_id(dom, sanitize_id("location-" + rsc_value)))
if rsc_type == RESOURCE_TYPE_RESOURCE:
lc.setAttribute("rsc", rsc_value)
elif rsc_type == RESOURCE_TYPE_REGEXP:
lc.setAttribute("rsc-pattern", rsc_value)
rule_utils.dom_rule_add(lc, options, rule_argv)
location_rule_check_duplicates(constraints, lc, modifiers.get("--force"))
utils.replace_cib_configuration(cib)
def colocation_add(argv):
if len(argv) < 2:
usage.constraint()
sys.exit(1)
role1 = ""
role2 = ""
if len(argv) > 2:
if not utils.is_score_or_opt(argv[2]):
if argv[2] == "with":
role1 = argv.pop(0).lower().capitalize()
resource1 = argv.pop(0)
else:
resource1 = argv.pop(0)
argv.pop(0) # Pop 'with'
if len(argv) == 1:
resource2 = argv.pop(0)
else:
if utils.is_score_or_opt(argv[1]):
resource2 = argv.pop(0)
else:
role2 = argv.pop(0).lower().capitalize()
resource2 = argv.pop(0)
else:
resource1 = argv.pop(0)
resource2 = argv.pop(0)
else:
resource1 = argv.pop(0)
resource2 = argv.pop(0)
cib_dom = utils.get_cib_dom()
resource_valid, resource_error, correct_id \
= utils.validate_constraint_resource(cib_dom, resource1)
if "--autocorrect" in utils.pcs_options and correct_id:
resource1 = correct_id
elif not resource_valid:
utils.err(resource_error)
resource_valid, resource_error, correct_id \
= utils.validate_constraint_resource(cib_dom, resource2)
if "--autocorrect" in utils.pcs_options and correct_id:
resource2 = correct_id
elif not resource_valid:
utils.err(resource_error)
score,nv_pairs = parse_score_options(argv)
id_in_nvpairs = None
for name, value in nv_pairs:
if name == "id":
id_valid, id_error = utils.validate_xml_id(value, 'constraint id')
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(cib_dom, value):
utils.err(
"id '%s' is already in use, please specify another one"
% value
)
id_in_nvpairs = True
if not id_in_nvpairs:
nv_pairs.append((
"id",
utils.find_unique_id(
cib_dom,
"colocation-%s-%s-%s" % (resource1, resource2, score)
)
))
(dom,constraintsElement) = getCurrentConstraints(cib_dom)
# If one role is specified, the other should default to "started"
if role1 != "" and role2 == "":
role2 = DEFAULT_ROLE
if role2 != "" and role1 == "":
role1 = DEFAULT_ROLE
element = dom.createElement("rsc_colocation")
element.setAttribute("rsc",resource1)
element.setAttribute("with-rsc",resource2)
element.setAttribute("score",score)
if role1 != "":
element.setAttribute("rsc-role", role1)
if role2 != "":
element.setAttribute("with-rsc-role", role2)
for nv_pair in nv_pairs:
element.setAttribute(nv_pair[0], nv_pair[1])
if "--force" not in utils.pcs_options:
duplicates = colocation_find_duplicates(constraintsElement, element)
if duplicates:
utils.err(
"duplicate constraint already exists, use --force to override\n"
+ "\n".join([
" " + constraint_colocation.console_report.constraint_plain(
{"options": dict(dup.attributes.items())},
True
)
for dup in duplicates
])
)
constraintsElement.appendChild(element)
utils.replace_cib_configuration(dom)
def dom_rule_add(dom_element, options, rule_argv, cib_schema_version):
# pylint: disable=too-many-branches
"""
Commandline options: no options
"""
# validate options
if options.get("score") and options.get("score-attribute"):
utils.err("can not specify both score and score-attribute")
if options.get("score") and not utils.is_score(options["score"]):
utils.err("invalid score'{score}'".format(score=options["score"]))
if options.get("role"):
role = options["role"].capitalize()
utils.print_depracation_warning_for_legacy_roles(options["role"])
supported_roles = (const.PCMK_ROLES_PROMOTED +
const.PCMK_ROLES_UNPROMOTED)
if role not in supported_roles:
utils.err("invalid role '{role}', use {supported_roles}".format(
role=options["role"],
supported_roles=format_list_custom_last_separator(
list(supported_roles), " or "),
))
options["role"] = pacemaker.role.get_value_for_cib(
role,
cib_schema_version >= const.PCMK_NEW_ROLES_CIB_VERSION,
)
if options.get("id"):
id_valid, id_error = utils.validate_xml_id(options["id"], "rule id")
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(dom_element.ownerDocument, options["id"]):
utils.err("id '%s' is already in use, please specify another one" %
options["id"])
# parse rule
if not rule_argv:
utils.err("no rule expression was specified")
try:
preprocessor = TokenPreprocessor()
dom_rule = CibBuilder(cib_schema_version).build(
dom_element,
RuleParser().parse(preprocessor.run(rule_argv)),
options.get("id"),
)
except SyntaxError as e:
utils.err("'%s' is not a valid rule expression: %s" %
(" ".join(rule_argv), e))
except UnexpectedEndOfInput as e:
utils.err(
"'%s' is not a valid rule expression: unexpected end of rule" %
" ".join(rule_argv))
except (ParserException, CibBuilderException) as e:
utils.err("'%s' is not a valid rule expression" % " ".join(rule_argv))
# add options into rule xml
if not options.get("score") and not options.get("score-attribute"):
options["score"] = "INFINITY"
for name, value in options.items():
if name != "id" and value is not None:
dom_rule.setAttribute(name, value)
# score or score-attribute is required for the nested rules in order to have
# valid CIB, pacemaker does not use the score of the nested rules
for rule in dom_rule.getElementsByTagName("rule"):
rule.setAttribute("score", "0")
if dom_element.hasAttribute("score"):
dom_element.removeAttribute("score")
if dom_element.hasAttribute("node"):
dom_element.removeAttribute("node")
return dom_element
def order_add(argv,returnElementOnly=False):
if len(argv) < 2:
usage.constraint()
sys.exit(1)
resource1 = argv.pop(0)
resource2 = argv.pop(0)
cib_dom = utils.get_cib_dom()
resource_valid, resource_error, correct_id \
= utils.validate_constraint_resource(cib_dom, resource1)
if "--autocorrect" in utils.pcs_options and correct_id:
resource1 = correct_id
elif not resource_valid:
utils.err(resource_error)
resource_valid, resource_error, correct_id \
= utils.validate_constraint_resource(cib_dom, resource2)
if "--autocorrect" in utils.pcs_options and correct_id:
resource2 = correct_id
elif not resource_valid:
utils.err(resource_error)
order_options = []
id_specified = False
sym = None
for arg in argv:
if arg == "symmetrical":
sym = "true"
elif arg == "nonsymmetrical":
sym = "false"
elif "=" in arg:
name, value = arg.split("=", 1)
if name == "id":
id_valid, id_error = utils.validate_xml_id(value, 'constraint id')
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(cib_dom, value):
utils.err(
"id '%s' is already in use, please specify another one"
% value
)
id_specified = True
order_options.append((name, value))
elif name == "symmetrical":
if value.lower() in OPTIONS_SYMMETRICAL:
sym = value.lower()
else:
utils.err(
"invalid symmetrical value '%s', allowed values are: %s"
% (value, ", ".join(OPTIONS_SYMMETRICAL))
)
else:
order_options.append((name, value))
if sym:
order_options.append(("symmetrical", sym))
options = ""
if order_options:
options = " (Options: %s)" % " ".join([
"%s=%s" % (name, value)
for name, value in order_options
if name not in ("kind", "score")
])
scorekind = "kind: Mandatory"
id_suffix = "mandatory"
for opt in order_options:
if opt[0] == "score":
scorekind = "score: " + opt[1]
id_suffix = opt[1]
break
if opt[0] == "kind":
scorekind = "kind: " + opt[1]
id_suffix = opt[1]
break
if not id_specified:
order_id = "order-" + resource1 + "-" + resource2 + "-" + id_suffix
order_id = utils.find_unique_id(cib_dom, order_id)
order_options.append(("id", order_id))
(dom,constraintsElement) = getCurrentConstraints()
element = dom.createElement("rsc_order")
element.setAttribute("first",resource1)
element.setAttribute("then",resource2)
for order_opt in order_options:
element.setAttribute(order_opt[0], order_opt[1])
constraintsElement.appendChild(element)
if "--force" not in utils.pcs_options:
duplicates = order_find_duplicates(constraintsElement, element)
if duplicates:
utils.err(
"duplicate constraint already exists, use --force to override\n"
+ "\n".join([
" " + constraint_order.console_report.constraint_plain(
{"options": dict(dup.attributes.items())},
True
) for dup in duplicates
])
)
print(
"Adding " + resource1 + " " + resource2 + " ("+scorekind+")" + options
)
if returnElementOnly == False:
utils.replace_cib_configuration(dom)
else:
return element.toxml()
def dom_rule_add(dom_element, options, rule_argv):
# validate options
if options.get("score") and options.get("score-attribute"):
utils.err("can not specify both score and score-attribute")
if options.get("score") and not utils.is_score(options["score"]):
# preserving legacy behaviour
print(
"Warning: invalid score '%s', setting score-attribute=pingd instead"
% options["score"]
)
options["score-attribute"] = "pingd"
options["score"] = None
if options.get("role") and options["role"] not in ["master", "slave"]:
utils.err(
"invalid role '%s', use 'master' or 'slave'" % options["role"]
)
if options.get("id"):
id_valid, id_error = utils.validate_xml_id(options["id"], 'rule id')
if not id_valid:
utils.err(id_error)
if utils.does_id_exist(dom_element.ownerDocument, options["id"]):
utils.err(
"id '%s' is already in use, please specify another one"
% options["id"]
)
# parse rule
if not rule_argv:
utils.err("no rule expression was specified")
try:
dom_rule = CibBuilder().build(
dom_element,
RuleParser().parse(TokenPreprocessor().run(rule_argv)),
options.get("id")
)
except SyntaxError as e:
utils.err(
"'%s' is not a valid rule expression: %s"
% (" ".join(rule_argv), e)
)
except UnexpectedEndOfInput as e:
utils.err(
"'%s' is not a valid rule expression: unexpected end of rule"
% " ".join(rule_argv)
)
except (ParserException, CibBuilderException) as e:
utils.err("'%s' is not a valid rule expression" % " ".join(rule_argv))
# add options into rule xml
if not options.get("score") and not options.get("score-attribute"):
options["score"] = "INFINITY"
for name, value in options.items():
if name != "id" and value is not None:
dom_rule.setAttribute(name, value)
# score or score-attribute is required for the nested rules in order to have
# valid CIB, pacemaker does not use the score of the nested rules
for rule in dom_rule.getElementsByTagName("rule"):
rule.setAttribute("score", "0")
if dom_element.hasAttribute("score"):
dom_element.removeAttribute("score")
if dom_element.hasAttribute("node"):
dom_element.removeAttribute("node")
return dom_element
def location_add(argv,rm=False):
if rm:
location_remove(argv)
return
if len(argv) < 4:
usage.constraint(["location add"])
sys.exit(1)
constraint_id = argv.pop(0)
rsc_type, rsc_value = parse_args.parse_typed_arg(
argv.pop(0),
[RESOURCE_TYPE_RESOURCE, RESOURCE_TYPE_REGEXP],
RESOURCE_TYPE_RESOURCE
)
node = argv.pop(0)
score = argv.pop(0)
options = []
# For now we only allow setting resource-discovery
if len(argv) > 0:
for arg in argv:
if '=' in arg:
options.append(arg.split('=',1))
else:
print("Error: bad option '%s'" % arg)
usage.constraint(["location add"])
sys.exit(1)
if options[-1][0] != "resource-discovery" and "--force" not in utils.pcs_options:
utils.err("bad option '%s', use --force to override" % options[-1][0])
id_valid, id_error = utils.validate_xml_id(constraint_id, 'constraint id')
if not id_valid:
utils.err(id_error)
if not utils.is_score(score):
utils.err("invalid score '%s', use integer or INFINITY or -INFINITY" % score)
required_version = None
if rsc_type == RESOURCE_TYPE_REGEXP:
required_version = 2, 6, 0
if required_version:
dom = utils.cluster_upgrade_to_version(required_version)
else:
dom = utils.get_cib_dom()
if rsc_type == RESOURCE_TYPE_RESOURCE:
rsc_valid, rsc_error, correct_id = utils.validate_constraint_resource(
dom, rsc_value
)
if "--autocorrect" in utils.pcs_options and correct_id:
rsc_value = correct_id
elif not rsc_valid:
utils.err(rsc_error)
# Verify current constraint doesn't already exist
# If it does we replace it with the new constraint
dummy_dom, constraintsElement = getCurrentConstraints(dom)
elementsToRemove = []
# If the id matches, or the rsc & node match, then we replace/remove
for rsc_loc in constraintsElement.getElementsByTagName('rsc_location'):
if (
rsc_loc.getAttribute("id") == constraint_id
or
(
rsc_loc.getAttribute("node") == node
and
(
(
RESOURCE_TYPE_RESOURCE == rsc_type
and
rsc_loc.getAttribute("rsc") == rsc_value
)
or
(
RESOURCE_TYPE_REGEXP == rsc_type
and
rsc_loc.getAttribute("rsc-pattern") == rsc_value
)
)
)
):
elementsToRemove.append(rsc_loc)
for etr in elementsToRemove:
constraintsElement.removeChild(etr)
element = dom.createElement("rsc_location")
element.setAttribute("id",constraint_id)
if rsc_type == RESOURCE_TYPE_RESOURCE:
element.setAttribute("rsc", rsc_value)
elif rsc_type == RESOURCE_TYPE_REGEXP:
element.setAttribute("rsc-pattern", rsc_value)
element.setAttribute("node",node)
element.setAttribute("score",score)
for option in options:
element.setAttribute(option[0], option[1])
constraintsElement.appendChild(element)
utils.replace_cib_configuration(dom)