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logging.go
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logging.go
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// Copyright (c) 2018 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 botanist
import (
"context"
"fmt"
"path/filepath"
"github.com/gardener/gardener/charts"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
"github.com/gardener/gardener/pkg/client/kubernetes"
"github.com/gardener/gardener/pkg/features"
gardenletfeatures "github.com/gardener/gardener/pkg/gardenlet/features"
"github.com/gardener/gardener/pkg/operation/common"
kutil "github.com/gardener/gardener/pkg/utils/kubernetes"
)
// DeploySeedLogging will install the Helm release "seed-bootstrap/charts/loki" in the Seed clusters.
func (b *Botanist) DeploySeedLogging(ctx context.Context) error {
if b.Shoot.Purpose == gardencorev1beta1.ShootPurposeTesting || !gardenletfeatures.FeatureGate.Enabled(features.Logging) {
return common.DeleteShootLoggingStack(ctx, b.K8sSeedClient.Client(), b.Shoot.SeedNamespace)
}
images, err := b.InjectSeedSeedImages(map[string]interface{}{},
charts.ImageNameLoki,
charts.ImageNameLokiCurator,
)
if err != nil {
return err
}
lokiValues := map[string]interface{}{
"global": images,
"replicas": b.Shoot.GetReplicas(1),
}
hvpaValues := make(map[string]interface{})
hvpaEnabled := gardenletfeatures.FeatureGate.Enabled(features.HVPA)
if b.ManagedSeed != nil {
hvpaEnabled = gardenletfeatures.FeatureGate.Enabled(features.HVPAForShootedSeed)
}
hvpaValues["enabled"] = hvpaEnabled
lokiValues["hvpa"] = hvpaValues
if hvpaEnabled {
currentResources, err := kutil.GetContainerResourcesInStatefulSet(ctx, b.K8sSeedClient.Client(), kutil.Key(b.Shoot.SeedNamespace, "loki"))
if err != nil {
return err
}
if len(currentResources) != 0 && currentResources["loki"] != nil {
lokiValues["resources"] = map[string]interface{}{
"loki": currentResources["loki"],
}
}
}
return b.K8sSeedClient.ChartApplier().Apply(ctx, filepath.Join(charts.Path, "seed-bootstrap", "charts", "loki"), b.Shoot.SeedNamespace, fmt.Sprintf("%s-logging", b.Shoot.SeedNamespace), kubernetes.Values(lokiValues))
}