This commit addresses the issue described here
https://github.com/kubernetes-incubator/cri-containerd/issues/341
The changes include using cadvisor stats in addition to CRI stats
for CRI runtimes. As described in the issue above , the CRI stats
currently doesnt provide all the necessary stats for the kubelet.
This commit addreses the need to extract stats from cadvisor which
is not available as CRI stats.
Signed-off-by: abhi <abhi@docker.com>
This PR adds the pod-level metrics for CPU and memory stats. cAdvisor
can get all pod cgroup information so we can add this pod-level CPU and
memory stats information from the corresponding pod cgroup
This PR adds pod-level ephemeral storage metric into Summary API.
Pod-level ephemeral storage usage is the sum of all containers and local
ephemeral volume including EmptyDir (if not backed up by memory or
hugepages), configueMap, and downwardAPI.
Lantao Liu