Currently we only care about the sum of sandbox resources, which
includes a pod overhead if defined. We have a need for also calculating
*just* the sum of container requests/limits for CPU / Memory, so let's
do a refactor and expose this new helper function.
Signed-off-by: Eric Ernst <eric_ernst@apple.com>
PodOverhead is now a beta feature and set to true by default. No need to
override to true during testing.
Signed-off-by: Eric Ernst <eric.ernst@intel.com>
Pod and burstable QoS cgroups should take overhead of running a sandbox
into account if the PodOverhead feature is enabled. These helper
functions are utilized by Kubelet for sizing the pod and burstable QoS
cgroups.
Pod overhead is added to resource requests, regardless of the initial
request values. A particular resource pod overhead is only added to a
resource limit if a non-zero limit already existed.
This commit updates eviction handling to also take Pod Overhead into
account (if the feature is enabled).
Signed-off-by: Eric Ernst <eric.ernst@intel.com>
