def _merge_configs(configs):
"""
Merge one or more ``KubeConfig`` objects.
:param list[KubeConfig] configs: The configurations to merge.
:return KubeConfig: A single configuration object with the merged
configuration.
"""
result = {
u"contexts": [],
u"users": [],
u"clusters": [],
u"current-context": None,
}
for config in configs:
for k in {u"contexts", u"users", u"clusters"}:
try:
values = config.doc[k]
except KeyError:
pass
else:
result[k].extend(values)
if result[u"current-context"] is None:
try:
result[u"current-context"] = config.doc[u"current-context"]
except KeyError:
pass
return KubeConfig(result)
def get_clusters(self):
# Kubernetes Python client expects "vintage" string path
config_file = str(self._path) if self._path else None
config = KubeConfig.from_file(config_file)
for context in config.contexts:
if self._contexts and context not in self._contexts:
# filter out
continue
# create a new KubeConfig with new "current context"
context_config = KubeConfig(config.doc, context)
client = HTTPClient(context_config)
cluster = Cluster(context, client)
yield cluster
