Commit Graph

10 Commits

Author SHA1 Message Date
Francesco Romani
1e7bb20c52 kubelet: podresources: per-endpoint metrics
Before the addition of GetAllocatableResources, the
podresources API had just one endpoint `List()`, thus we could just
account for the total of the calls to have a good pulse of the API usage.
Now that we extend the API with more endpoints
(`GetAlloctableResources`), in order to improve the observability we add
per-endpoint counters, in addition to the existing counter of the total
API calls.

Signed-off-by: Francesco Romani <fromani@redhat.com>
2021-03-09 13:14:58 +01:00
Francesco Romani
d7a30e1b08 podresources: getallocatable: add feature gate
Add feature gate to disable the GetAllocatableResources API.
The feature gate isd alpha stage, disabled by default.

Add e2e test to demonstrate the behaviour with feature gate disabled.

Signed-off-by: Francesco Romani <fromani@redhat.com>
2021-03-09 13:14:56 +01:00
Francesco Romani
8afdf4f146 node: podresources: translate types in cm
during the review, we convened that the manager types
(CPUSet, ResourceDeviceInstances) should not cross the
containermanager API boundary; thus, the ContainerManager layer
is the correct place to do the type conversion

We push back the type conversions from the podresources server
layer, fixing tests accordingly.

Signed-off-by: Francesco Romani <fromani@redhat.com>
2021-03-09 13:13:36 +01:00
Francesco Romani
ad68f9588c node: podresources: make GetDevices() consistent
We want to make the return type of the GetDevices() method of the
podresources DevicesProvider interface consistent with
the newly added GetAllocatableDevices type.
This makes the code easier to read and reduces the coupling between
the podresourcesapi server and the devicemanager code.

No intended changes in behaviour, but the different return types
now requires some data massaging. Tests are updated accordingly.

Signed-off-by: Francesco Romani <fromani@redhat.com>
2021-03-09 13:13:36 +01:00
Francesco Romani
6d33354e4c node: podresources: implement GetAllocatableResources API
Extend the podresources API implementing the GetAllocatableResources endpoint,
as specified in the KEPs:

https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/2043-pod-resource-concrete-assigments
https://github.com/kubernetes/enhancements/pull/2404

Signed-off-by: Francesco Romani <fromani@redhat.com>
2021-03-09 13:13:36 +01:00
Francesco Romani
1375c5bdc7 node: podresources: make GetCPUs return cpuset
a upcoming patch wants to add GetAllocatableCPUs() returning a cpuset.
To make the code consistent and a bit more flexible, we change the
existing interface to also return a cpuset.

Signed-off-by: Francesco Romani <fromani@redhat.com>
2021-03-09 13:13:36 +01:00
Alexey Perevalov
a8b8995ef2 Implement TopologyInfo and cpu_ids in podresources
It covers deviceplugin & cpumanager.

It has drawback, since cpuset and all other structs including cadvisor's keep
cpu as int, but for protobuf based interface is better to have fixed
int.
This patch also introduces additional interface CPUsProvider, while
DeviceProvider might have been extended too.

Checkpoint not covered by unit test.

Signed-off-by: Swati Sehgal <swsehgal@redhat.com>
Signed-off-by: Alexey Perevalov <alexey.perevalov@huawei.com>
2020-11-11 13:50:49 +03:00
Alexey Perevalov
9f54dccc92 Change GetDevices interface
This change is necessary for supporting Topology in the ContainerDevices.

Signed-off-by: Alexey Perevalov <alexey.perevalov@huawei.com>
2020-11-11 12:41:31 +03:00
Renaud Gaubert
969e45f49f Add the pod_resources_endpoint_requests_total metric 2020-10-27 11:23:39 -07:00
Renaud Gaubert
817bf784d2 Kubelet now implements the V1 podresources API 2020-10-26 12:10:18 -07:00