Podman Pod Create --cpus and --cpuset-cpus flags

Added logic and handling for two new Podman pod create Flags.

--cpus specifies the total number of cores on which the pod can execute, this
is a combination of the period and quota for the CPU.

 --cpuset-cpus is a string value which determines of these available cores,
how many we will truly execute on.

Signed-off-by: cdoern <cbdoer23@g.holycross.edu>

1 files changed, 40 insertions, 2 deletions

diff --git a/libpod/options.go b/libpod/options.go
index f2468e41b..b12153512 100644
--- a/libpod/options.go
+++ b/libpod/options.go
@@ -20,6 +20,7 @@ import (
 	"github.com/containers/storage"
 	"github.com/containers/storage/pkg/idtools"
 	"github.com/cri-o/ocicni/pkg/ocicni"
+	"github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/opencontainers/runtime-tools/generate"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
@@ -559,7 +560,6 @@ func WithMaxLogSize(limit int64) CtrCreateOption {
 		if ctr.valid {
 			return define.ErrRuntimeFinalized
 		}
-
 		ctr.config.LogSize = limit
 
 		return nil
@@ -867,7 +867,6 @@ func WithMountNSFrom(nsCtr *Container) CtrCreateOption {
 		if err := checkDependencyContainer(nsCtr, ctr); err != nil {
 			return err
 		}
-
 		ctr.config.MountNsCtr = nsCtr.ID()
 
 		return nil
@@ -2359,3 +2358,42 @@ func WithVolatile() CtrCreateOption {
 		return nil
 	}
 }
+
+// WithPodCPUPAQ takes the given cpu period and quota and inserts them in the proper place.
+func WithPodCPUPAQ(period uint64, quota int64) PodCreateOption {
+	return func(pod *Pod) error {
+		if pod.valid {
+			return define.ErrPodFinalized
+		}
+		if pod.CPUPeriod() != 0 && pod.CPUQuota() != 0 {
+			pod.config.InfraContainer.ResourceLimits.CPU = &specs.LinuxCPU{
+				Period: &period,
+				Quota:  &quota,
+			}
+		} else {
+			pod.config.InfraContainer.ResourceLimits = &specs.LinuxResources{}
+			pod.config.InfraContainer.ResourceLimits.CPU = &specs.LinuxCPU{
+				Period: &period,
+				Quota:  &quota,
+			}
+		}
+		return nil
+	}
+}
+
+// WithPodCPUSetCPUS computes and sets the Cpus linux resource string which determines the amount of cores, from those available,  we are allowed to execute on
+func WithPodCPUSetCPUs(inp string) PodCreateOption {
+	return func(pod *Pod) error {
+		if pod.valid {
+			return define.ErrPodFinalized
+		}
+		if pod.ResourceLim().CPU.Period != nil {
+			pod.config.InfraContainer.ResourceLimits.CPU.Cpus = inp
+		} else {
+			pod.config.InfraContainer.ResourceLimits = &specs.LinuxResources{}
+			pod.config.InfraContainer.ResourceLimits.CPU = &specs.LinuxCPU{}
+			pod.config.InfraContainer.ResourceLimits.CPU.Cpus = inp
+		}
+		return nil
+	}
+}