In addition to getting overall performance measurements from golang benchmark,
collect metrics that provides information about insides of the scheduler itself.
This is a first step towards improving what we collect about the scheduler.
Metrics in question:
- scheduler_scheduling_algorithm_predicate_evaluation_seconds
- scheduler_scheduling_algorithm_priority_evaluation_seconds
- scheduler_binding_duration_seconds
- scheduler_e2e_scheduling_duration_seconds
Scheduling throughput is computed on the fly inside perfScheduling.
this patch moves the helper getCurrentKubeletConfig function,
used in both e2e and e2e_node tests and previously duplicated,
in the common framework.
There are no intended changes in behaviour.
Signed-off-by: Francesco Romani <fromani@redhat.com>
All tests remove the test client pod, usually in TestVolumeClient.
Rename TestCleanup to TestServerCleanup.
In addition, remove few calls to Test(Server)Cleanup that do not do anything
useful (server pod is not used in these tests).
- Add handlers for service account issuer metadata.
- Add option to manually override JWKS URI.
- Add unit and integration tests.
- Add a separate ServiceAccountIssuerDiscovery feature gate.
Additional notes:
- If not explicitly overridden, the JWKS URI will be based on
the API server's external address and port.
- The metadata server is configured with the validating key set rather
than the signing key set. This allows for key rotation because tokens
can still be validated by the keys exposed in the JWKs URL, even if the
signing key has been rotated (note this may still be a short window if
tokens have short lifetimes).
- The trust model of OIDC discovery requires that the relying party
fetch the issuer metadata via HTTPS; the trust of the issuer metadata
comes from the server presenting a TLS certificate with a trust chain
back to the from the relying party's root(s) of trust. For tests, we use
a local issuer (https://kubernetes.default.svc) for the certificate
so that workloads within the cluster can authenticate it when fetching
OIDC metadata. An API server cannot validly claim https://kubernetes.io,
but within the cluster, it is the authority for kubernetes.default.svc,
according to the in-cluster config.
Co-authored-by: Michael Taufen <mtaufen@google.com>
This adds the [Feature:vsphere] tag to those vSphere tests which were
missing it. This makes it easier to specifically target the vSphere
storage E2E test suite.
Reorganize the code with setup and teardown functions,
to make room for the future addition of more device plugin
support, and to make the code a bit tidier.
Signed-off-by: Francesco Romani <fromani@redhat.com>
Add a helper function to check if a Pod failed
admission for Topology Affinity Error.
So far we only check the Status.Reason.
Signed-off-by: Francesco Romani <fromani@redhat.com>
Five minutes was initially used only to be overcautious.
From my experiments, the node is ready in usually less than a minute.
Double it to give some buffer space.
Signed-off-by: Francesco Romani <fromani@redhat.com>
TO properly implement some e2e tests, we need to know
some basic topology facts about the system running the tests.
The bare minimum we need to know is how many PCI SRIOV devices
are attached to which NUMA node.
This way we know which core we can reserve for kube services,
and which NUMA socket we can take to test full socket reservation.
To let the tests know the PCI device topology, we use annotations
in the SRIOV device plugin ConfigMap we need anyway.
The format is
```yaml
metadata:
annotations:
pcidevice_node0: "2"
pcidevice_node1: "0"
```
with one annotation per NUMA node in the system.
Signed-off-by: Francesco Romani <fromani@redhat.com>
Negative tests is when we request a gu Pod we know the system cannot
fullfill - hence we expect rejection from the topology manager.
Unfortunately, besides the trivial case of excessive cores (request
more socket than a NUMA node provides) we cannot easily test the
devices, because crafting a proper pod will require detailed knowledge
of the hw topology.
Let's consider a hypotetical two-node NUMA system with two PCIe busses,
one per NUMA node, with a SRIOV device on each bus.
A proper negative test would require two SRIOV device, that the system
can provide but not on the same single NUMA node.
Requiring for example three devices (one more than the system provides)
will lead to a different, legitimate admission error.
For these reasons we bootstrap the testing infra for the negative tests,
but we add just the simplest one.
Signed-off-by: Francesco Romani <fromani@redhat.com>
We cannot anticipate all the possible configurations
needed by the SRIOV device plugin: there is too much variety.
Hence, we need to allow the test environment to supply
a host-specific ConfigMap to properly configure the device
plugin and avoid false negatives.
We still provide a the default config map as fallback and reference.
Signed-off-by: Francesco Romani <fromani@redhat.com>
The SRIOV device plugin can create different resources depending
on both the hardware present on the system and the configuration.
As long as we have at least one SRIOV device, the tests don't actually
care about which specific device is.
Previously, the test hardcoded the most common intel SRIOV device
identifier. This patch lifts the restriction and let the test
autodetect and use what's available.
Signed-off-by: Francesco Romani <fromani@redhat.com>
This patch extends and completes the previously-added
empty topology manager test for single-NUMA node policy
by adding reporting in the test pod and checking
the resource alignment.
Signed-off-by: Francesco Romani <fromani@redhat.com>
This patch all the testing infra and utilities needed
to run e2e topology manager tests. This include setup
a guaranteed pod which needs some devices.
The simplest real device available for the purpose
are the SRIOV devices, hence we use them.
This patch pulls the SRIOV device plugin from
the official, yet external, repository.
We do it as close as possible for the nvidia GPU plugin.
This patch also performs minor refactoring for some
test framework utilities, needed to support the new
e2e tests.
Finally, we add an empty e2e topology manager test,
to be completed by the next patch.
Signed-off-by: Francesco Romani <fromani@redhat.com>
