oci: implement WithRdt

Helper for setting the (Linux) container's RDT parameters.

Signed-off-by: Markus Lehtonen <markus.lehtonen@intel.com>

oci/spec_opts_linux.go

@@ -141,3 +141,15 @@ var WithAllKnownCapabilities = func(ctx context.Context, client Client, c *conta
 func WithoutRunMount(ctx context.Context, client Client, c *containers.Container, s *Spec) error {
 	return WithoutMounts("/run")(ctx, client, c, s)
 }
+
+// WithRdt sets the container's RDT parameters
+func WithRdt(closID, l3CacheSchema, memBwSchema string) SpecOpts {
+	return func(ctx context.Context, _ Client, c *containers.Container, s *Spec) error {
+		s.Linux.IntelRdt = &specs.LinuxIntelRdt{
+			ClosID:        closID,
+			L3CacheSchema: l3CacheSchema,
+			MemBwSchema:   memBwSchema,
+		}
+		return nil
+	}
+}

oci/spec_opts_nonlinux.go

@@ -23,6 +23,7 @@ import (
 	"context"
 
 	"github.com/containerd/containerd/containers"
+	"github.com/pkg/errors"
 )
 
 // WithAllCurrentCapabilities propagates the effective capabilities of the caller process to the container process.
@@ -45,3 +46,10 @@ func WithCPUShares(shares uint64) SpecOpts {
 		return nil
 	}
 }
+
+// WithRdt sets the container's RDT parameters
+func WithRdt(closID, l3CacheSchema, memBwSchema string) SpecOpts {
+	return func(_ context.Context, _ Client, _ *containers.Container, _ *Spec) error {
+		return errors.New("RDT not supported")
+	}
+}