forked from kedacore/keda
/
scale_executor.go
92 lines (79 loc) · 2.84 KB
/
scale_executor.go
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package executor
import (
"context"
"fmt"
"github.com/go-logr/logr"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/scale"
"sigs.k8s.io/controller-runtime/pkg/client"
logf "sigs.k8s.io/controller-runtime/pkg/log"
kedav1alpha1 "github.com/kedacore/keda/api/v1alpha1"
)
const (
// Default cooldown period for a ScaleTarget if no cooldownPeriod is defined on the scaledObject
defaultCooldownPeriod = 5 * 60 // 5 minutes
)
// ScaleExecutor contains methods RequestJobScale and RequestScale
type ScaleExecutor interface {
RequestJobScale(ctx context.Context, scaledJob *kedav1alpha1.ScaledJob, isActive bool, scaleTo int64, maxScale int64)
RequestScale(ctx context.Context, scaledObject *kedav1alpha1.ScaledObject, isActive bool)
}
type scaleExecutor struct {
client client.Client
scaleClient *scale.ScalesGetter
reconcilerScheme *runtime.Scheme
logger logr.Logger
}
// NewScaleExecutor creates a ScaleExecutor object
func NewScaleExecutor(client client.Client, scaleClient *scale.ScalesGetter, reconcilerScheme *runtime.Scheme) ScaleExecutor {
return &scaleExecutor{
client: client,
scaleClient: scaleClient,
reconcilerScheme: reconcilerScheme,
logger: logf.Log.WithName("scaleexecutor"),
}
}
func (e *scaleExecutor) updateLastActiveTime(ctx context.Context, logger logr.Logger, object interface{}) error {
var patch client.Patch
now := metav1.Now()
runtimeObj := object.(runtime.Object)
switch obj := runtimeObj.(type) {
case *kedav1alpha1.ScaledObject:
patch = client.MergeFrom(obj.DeepCopy())
obj.Status.LastActiveTime = &now
case *kedav1alpha1.ScaledJob:
patch = client.MergeFrom(obj.DeepCopy())
obj.Status.LastActiveTime = &now
default:
err := fmt.Errorf("Unknown scalable object type %v", obj)
logger.Error(err, "Failed to patch Objects Status")
return err
}
err := e.client.Status().Patch(ctx, runtimeObj, patch)
if err != nil {
logger.Error(err, "Failed to patch Objects Status")
}
return err
}
func (e *scaleExecutor) setActiveCondition(ctx context.Context, logger logr.Logger, object interface{}, status metav1.ConditionStatus, reason string, mesage string) error {
var patch client.Patch
runtimeObj := object.(runtime.Object)
switch obj := runtimeObj.(type) {
case *kedav1alpha1.ScaledObject:
patch = client.MergeFrom(obj.DeepCopy())
obj.Status.Conditions.SetActiveCondition(status, reason, mesage)
case *kedav1alpha1.ScaledJob:
patch = client.MergeFrom(obj.DeepCopy())
obj.Status.Conditions.SetActiveCondition(status, reason, mesage)
default:
err := fmt.Errorf("Unknown scalable object type %v", obj)
logger.Error(err, "Failed to patch Objects Status")
return err
}
err := e.client.Status().Patch(ctx, runtimeObj, patch)
if err != nil {
logger.Error(err, "Failed to patch Objects Status")
}
return err
}