This change adds CDI device IDs to the ContainerAllocateResponse in the
device plugin API. This allows a device plugin to specify CDI devices
by their unique fully-qualified CDI device names using the related field
in the CRI specification.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
Instead of using two metrics use just one metrics with multiple labels,
since the labels can only get 2 values, 200 or 503 there is no risk of
carindality explosion and are simple to represent in graphs.
Change-Id: I0e9cbd6ec2051de44d277d673dc20f02b96aa4d1
* Support namespace access from cel expression in validatingadmissionpolicy.
* Whitelist the exposed fields in namespace object and add test
* better handling of cluster-scoped resources.
* [API REVIEW] namespaceObject in Expression doc.
* compatibility with composition.
* generated: ./hack/update-codegen.sh && ./hack/update-openapi-spec.sh
* workaround namespace of namespace is unexpectedly set.
* basic test coverage for namespaceObject.
---------
Co-authored-by: Jiahui Feng <jhf@google.com>
After this commit, when LimitedSwap is enabled,
containers would get swap acess limited with respect
the container memory request, total physical memory
on the node, and the swap size on the node.
Pods of Best-Effort / Guaranteed QoS classes don't get
to swap. In addition, container with memory requests
that are equal to their memory limits also don't get to
swap.
The swap limitation is calculated in the following way:
1. Calculate the container's memory proportionate to the node's memory:
- Divide the container's memory request by the total node's physical memory.
Let's call this value ContainerMemoryProportion.
2. Multiply the container memory proportion by the available
swap memory for Pods:
Meaning: ContainerMemoryProportion * TotalPodsSwapAvailable.
Fore more information:
https://github.com/kubernetes/enhancements/blob/master/keps/sig-node/2400-node-swap/README.md
Signed-off-by: Itamar Holder <iholder@redhat.com>
Before this commit, to find out the current node's
cgroup version, a libcontainers function was used
directly. This way, cgroup version is hard to mock
and is dependant on the environment in which the unit
tests are being run.
After this commit, libcontainer's function is wrapped
within a variable function that can be re-assigned by
the tests. This way the test can easily mock the cgroup
version and become environment independant.
After this commit both cgroup versions v1 and v2
are being tested, no matter in which environment
it runs.
Signed-off-by: Itamar Holder <iholder@redhat.com>
