This commit introduces the DRAResourceClaimGranularStatusAuthorization
feature gate (Beta in 1.36) to enforce fine-grained authorization checks
on ResourceClaim status updates.
Previously, 'update' permission on 'resourceclaims/status' allowed modifying
the entire status. To enforce the principle of least privilege for DRA
drivers and the scheduler, this change introduces synthetic subresources and
verb prefixes:
- 'resourceclaims/binding': Required to update 'status.allocation' and
'status.reservedFor'.
- 'resourceclaims/driver': Required to update 'status.devices'. Evaluated
on a per-driver basis using 'associated-node:<verb>' (for node-local
ServiceAccounts) or 'arbitrary-node:<verb>' (for cluster-wide controllers).
This change allows slow impersonation requests to be tracked via the
apiserver.latency.k8s.io/impersonation audit event annotation.
Updated tests to assert that the audit event log:
- Contains the new latency annotation
- Contains the impersonationConstraint field
- Failed impersonation attempts are observable by the response status
Signed-off-by: Monis Khan <mok@microsoft.com>
As before when adding v1beta2, DRA drivers built using the
k8s.io/dynamic-resource-allocation helper packages remain compatible with all
Kubernetes release >= 1.32. The helper code picks whatever API version is
enabled from v1beta1/v1beta2/v1.
However, the control plane now depends on v1, so a cluster configuration where
only v1beta1 or v1beta2 are enabled without the v1 won't work.
This change introduces the TokenRequestServiceAccountUIDValidation feature
gate and implements feature-gated service account UID validation for the
TokenRequest API. When enabled, the API validates that the service account
UID in token requests matches the actual service account UID, preventing
token requests for recreated service accounts with the same name but
different UIDs.
Signed-off-by: Anish Ramasekar <anish.ramasekar@gmail.com>
This commit expands the existing credential ID concept to cover X.509
certificates. We use the certificate's signature as the credential ID,
since this safe and unique.
This is a complete revamp of the original API. Some of the key
differences:
- refocused on structured parameters and allocating devices
- support for constraints across devices
- support for allocating "all" or a fixed amount
of similar devices in a single request
- no class for ResourceClaims, instead individual
device requests are associated with a mandatory
DeviceClass
For the sake of simplicity, optional basic types (ints, strings) where the null
value is the default are represented as values in the API types. This makes Go
code simpler because it doesn't have to check for nil (consumers) and values
can be set directly (producers). The effect is that in protobuf, these fields
always get encoded because `opt` only has an effect for pointers.
The roundtrip test data for v1.29.0 and v1.30.0 changes because of the new
"request" field. This is considered acceptable because the entire `claims`
field in the pod spec is still alpha.
The implementation is complete enough to bring up the apiserver.
Adapting other components follows.
This is in preparation for revamping the resource.k8s.io completely. Because
there will be no support for transitioning from v1alpha2 to v1alpha3, the
roundtrip test data for that API in 1.29 and 1.30 gets removed.
Repeating the version in the import name of the API packages is not really
required. It was done for a while to support simpler grepping for usage of
alpha APIs, but there are better ways for that now. So during this transition,
"resourceapi" gets used instead of "resourcev1alpha3" and the version gets
dropped from informer and lister imports. The advantage is that the next bump
to v1beta1 will affect fewer source code lines.
Only source code where the version really matters (like API registration)
retains the versioned import.
2e34e187c9 enabled kubelet to do List and Watch
requests with the caveat that kubelet should better use a field selector (which
it does). The same is now also needed for DeleteCollection because kubelet will
use that to clean up in one operation instead of using multiple.
