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utils.go
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/
utils.go
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// Copyright 2022 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"context"
"time"
"github.com/go-logr/logr"
"k8s.io/utils/clock"
"sigs.k8s.io/controller-runtime/pkg/client"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
v1beta1helper "github.com/gardener/gardener/pkg/apis/core/v1beta1/helper"
"github.com/gardener/gardener/pkg/controllermanager/apis/config"
)
// GetThresholdForCondition returns the threshold duration from the configuration for the provided condition type.
func GetThresholdForCondition(conditions []config.ConditionThreshold, conditionType gardencorev1beta1.ConditionType) time.Duration {
for _, threshold := range conditions {
if threshold.Type == string(conditionType) {
return threshold.Duration.Duration
}
}
return 0
}
// SetToProgressingOrUnknown sets the provided condition to Progressing or to Unknown based on whether the provided
// conditionThreshold has passed compared to the condition's last transition time.
func SetToProgressingOrUnknown(
clock clock.Clock,
conditionThreshold time.Duration,
condition gardencorev1beta1.Condition,
reason, message string,
codes ...gardencorev1beta1.ErrorCode,
) gardencorev1beta1.Condition {
return setToProgressingIfWithinThreshold(clock, conditionThreshold, condition, gardencorev1beta1.ConditionUnknown, reason, message, codes...)
}
// SetToProgressingOrFalse sets the provided condition to Progressing or to False based on whether the provided
// conditionThreshold has passed compared to the condition's last transition time.
func SetToProgressingOrFalse(
clock clock.Clock,
conditionThreshold time.Duration,
condition gardencorev1beta1.Condition,
reason, message string,
codes ...gardencorev1beta1.ErrorCode,
) gardencorev1beta1.Condition {
return setToProgressingIfWithinThreshold(clock, conditionThreshold, condition, gardencorev1beta1.ConditionFalse, reason, message, codes...)
}
func setToProgressingIfWithinThreshold(
clock clock.Clock,
conditionThreshold time.Duration,
condition gardencorev1beta1.Condition,
eventualConditionStatus gardencorev1beta1.ConditionStatus,
reason, message string,
codes ...gardencorev1beta1.ErrorCode,
) gardencorev1beta1.Condition {
switch condition.Status {
case gardencorev1beta1.ConditionTrue:
if conditionThreshold == 0 {
return v1beta1helper.UpdatedConditionWithClock(clock, condition, eventualConditionStatus, reason, message, codes...)
}
return v1beta1helper.UpdatedConditionWithClock(clock, condition, gardencorev1beta1.ConditionProgressing, reason, message, codes...)
case gardencorev1beta1.ConditionProgressing:
if conditionThreshold == 0 {
return v1beta1helper.UpdatedConditionWithClock(clock, condition, eventualConditionStatus, reason, message, codes...)
}
if delta := clock.Now().UTC().Sub(condition.LastTransitionTime.Time.UTC()); delta <= conditionThreshold {
return v1beta1helper.UpdatedConditionWithClock(clock, condition, gardencorev1beta1.ConditionProgressing, reason, message, codes...)
}
return v1beta1helper.UpdatedConditionWithClock(clock, condition, eventualConditionStatus, reason, message, codes...)
}
return v1beta1helper.UpdatedConditionWithClock(clock, condition, eventualConditionStatus, reason, message, codes...)
}
// PatchSeedCondition patches the seed conditions in case they need to be updated.
func PatchSeedCondition(ctx context.Context, log logr.Logger, c client.StatusWriter, seed *gardencorev1beta1.Seed, condition gardencorev1beta1.Condition) error {
patch := client.StrategicMergeFrom(seed.DeepCopy())
conditions := v1beta1helper.MergeConditions(seed.Status.Conditions, condition)
if !v1beta1helper.ConditionsNeedUpdate(seed.Status.Conditions, conditions) {
return nil
}
seed.Status.Conditions = conditions
if err := c.Patch(ctx, seed, patch); err != nil {
return err
}
log.Info("Successfully patched condition", "conditionType", condition.Type, "conditionStatus", condition.Status)
return nil
}