def _init_new_host_object(cls):
return Host(
folder=Folder.current(),
host_name=request.var("host"),
attributes={},
cluster_nodes=[],
)
def _get_cluster_nodes(self):
if not self._is_cluster():
return None
cluster_nodes = self._vs_cluster_nodes().from_html_vars("nodes")
self._vs_cluster_nodes().validate_value(cluster_nodes, "nodes")
if len(cluster_nodes) < 1:
raise MKUserError("nodes_0",
_("The cluster must have at least one node"))
# Fake a cluster host in order to get calculated tag groups via effective attributes...
cluster_computed_datasources = cmk.utils.tags.compute_datasources(
Host(
Folder.current(),
self._host.name(),
collect_attributes("cluster", new=False),
[],
).tag_groups())
for nr, cluster_node in enumerate(cluster_nodes):
if cluster_node == self._host.name():
raise MKUserError(
"nodes_%d" % nr,
_("The cluster can not be a node of it's own"))
if not Host.host_exists(cluster_node):
raise MKUserError(
"nodes_%d" % nr,
_("The node <b>%s</b> does not exist "
" (must be a host that is configured with WATO)") %
cluster_node,
)
node_computed_datasources = cmk.utils.tags.compute_datasources(
Host.load_host(cluster_node).tag_groups())
if datasource_differences := cluster_computed_datasources.get_differences_to(
node_computed_datasources):
raise MKUserError(
"nodes_%d" % nr,
_("Cluster and nodes must have the same datasource. ") +
self._format_datasource_differences(
cluster_node, datasource_differences),
)