def remove_node(runner, node_name):
stdout, stderr, retval = runner.run([
__exec("crm_node"),
"--force",
"--remove",
node_name,
])
if retval != 0:
raise LibraryError(
reports.node_remove_in_pacemaker_failed(node_name,
reason=join_multilines(
[stderr, stdout])))
def remove_node(runner, node_name):
stdout, stderr, retval = runner.run([
__exec("crm_node"),
"--force",
"--remove",
node_name,
])
if retval != 0:
raise LibraryError(
reports.node_remove_in_pacemaker_failed(
[node_name],
reason=join_multilines([stderr, stdout])
)
)
def _process_response(self, response):
report = self._get_response_report(response)
if report is not None:
self._report(report)
return
node_label = response.request.target.label
try:
output = json.loads(response.data)
if output["code"] != "success":
self._report(
reports.node_remove_in_pacemaker_failed(
self._nodes_to_remove,
node=node_label,
reason=output["message"],
))
except (KeyError, json.JSONDecodeError):
self._report(reports.invalid_response_format(node_label))
def _process_response(self, response):
report = self._get_response_report(response)
if report is not None:
self._report(report)
return
node_label = response.request.target.label
try:
output = json.loads(response.data)
if output["code"] != "success":
self._report(
reports.node_remove_in_pacemaker_failed(
self._nodes_to_remove,
node=node_label,
reason=output["message"],
)
)
except (KeyError, json.JSONDecodeError):
self._report(reports.invalid_response_format(node_label))
def remove_nodes_from_cib(env, node_list):
"""
Remove specified nodes from CIB. When pcmk is running 'crm_node -R <node>'
will be used. Otherwise nodes will be removed directly from CIB file.
env LibraryEnvironment
node_list iterable -- names of nodes to remove
"""
# TODO: more advanced error handling
# TODO: Tests
if not env.is_cib_live:
raise LibraryError(reports.live_environment_required(["CIB"]))
if is_service_running(env.cmd_runner(), "pacemaker"):
for node in node_list:
# this may raise a LibraryError
# NOTE: crm_node cannot remove multiple nodes at once
remove_node(env.cmd_runner(), node)
return
# TODO: We need to remove nodes from the CIB file. We don't want to do it
# using environment as this is a special case in which we have to edit CIB
# file directly.
for node in node_list:
stdout, stderr, retval = env.cmd_runner().run(
[
settings.cibadmin,
"--delete-all",
"--force",
f"--xpath=/cib/configuration/nodes/node[@uname='{node}']",
],
env_extend={"CIB_file": os.path.join(settings.cib_dir, "cib.xml")}
)
if retval != 0:
raise LibraryError(
reports.node_remove_in_pacemaker_failed(
[node],
reason=join_multilines([stderr, stdout])
)
)
