karmada/pkg/resourceinterpreter/defaultinterpreter/replica.go

58 lines
2.0 KiB
Go

package defaultinterpreter
import (
appsv1 "k8s.io/api/apps/v1"
batchv1 "k8s.io/api/batch/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/klog/v2"
workv1alpha2 "github.com/karmada-io/karmada/pkg/apis/work/v1alpha2"
"github.com/karmada-io/karmada/pkg/util"
"github.com/karmada-io/karmada/pkg/util/helper"
)
// replicaInterpreter is the function that used to parse replica and requirements from object.
type replicaInterpreter func(object *unstructured.Unstructured) (int32, *workv1alpha2.ReplicaRequirements, error)
func getAllDefaultReplicaInterpreter() map[schema.GroupVersionKind]replicaInterpreter {
s := make(map[schema.GroupVersionKind]replicaInterpreter)
s[appsv1.SchemeGroupVersion.WithKind(util.DeploymentKind)] = deployReplica
s[batchv1.SchemeGroupVersion.WithKind(util.JobKind)] = jobReplica
return s
}
func deployReplica(object *unstructured.Unstructured) (int32, *workv1alpha2.ReplicaRequirements, error) {
deploy := &appsv1.Deployment{}
if err := helper.ConvertToTypedObject(object, deploy); err != nil {
klog.Errorf("Failed to convert object(%s), err", object.GroupVersionKind().String(), err)
return 0, nil, err
}
var replica int32
if deploy.Spec.Replicas != nil {
replica = *deploy.Spec.Replicas
}
requirement := helper.GenerateReplicaRequirements(&deploy.Spec.Template)
return replica, requirement, nil
}
func jobReplica(object *unstructured.Unstructured) (int32, *workv1alpha2.ReplicaRequirements, error) {
job := &batchv1.Job{}
err := helper.ConvertToTypedObject(object, job)
if err != nil {
klog.Errorf("Failed to convert object(%s), err", object.GroupVersionKind().String(), err)
return 0, nil, err
}
var replica int32
// parallelism might never be nil as the kube-apiserver will set it to 1 by default if not specified.
if job.Spec.Parallelism != nil {
replica = *job.Spec.Parallelism
}
requirement := helper.GenerateReplicaRequirements(&job.Spec.Template)
return replica, requirement, nil
}