def is_excluded(self, cid, pod_uid=None):
"""
Queries the agent6 container filter interface. It retrieves container
name + image from the podlist, so static pod filtering is not supported.
Result is cached between calls to avoid the python-go switching cost for
prometheus metrics (will be called once per metric)
:param cid: container id
:param pod_uid: pod UID for static pod detection
:return: bool
"""
if not cid:
return True
if cid in self.cache:
return self.cache[cid]
if pod_uid and pod_uid in self.static_pod_uids:
self.cache[cid] = False
return False
if cid not in self.containers:
# Filter out metrics not coming from a container (system slices)
self.cache[cid] = True
return True
ctr = self.containers[cid]
if not ("name" in ctr and "image" in ctr):
# Filter out invalid containers
self.cache[cid] = True
return True
excluded = is_excluded(ctr.get("name"), ctr.get("image"))
self.cache[cid] = excluded
return excluded
def check(self, instance):
for c in containers:
excluded = is_excluded(c[0], c[1])
if excluded != c[2]:
self.warning("Error, got {} for {}".format(excluded, c))