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logging.go
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logging.go
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// SPDX-FileCopyrightText: 2024 SAP SE or an SAP affiliate company and Gardener contributors
//
// SPDX-License-Identifier: Apache-2.0
package resourcemanager
import (
"fmt"
fluentbitv1alpha2 "github.com/fluent/fluent-operator/v2/apis/fluentbit/v1alpha2"
fluentbitv1alpha2filter "github.com/fluent/fluent-operator/v2/apis/fluentbit/v1alpha2/plugins/filter"
fluentbitv1alpha2parser "github.com/fluent/fluent-operator/v2/apis/fluentbit/v1alpha2/plugins/parser"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/utils/ptr"
v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
"github.com/gardener/gardener/pkg/component"
)
// CentralLoggingConfiguration returns a fluent-bit parser and filters for the gardener-resource-manager logs.
func CentralLoggingConfiguration() (component.CentralLoggingConfig, error) {
return component.CentralLoggingConfig{Filters: generateClusterFilters(), Parsers: generateClusterParsers()}, nil
}
func generateClusterFilters() []*fluentbitv1alpha2.ClusterFilter {
return []*fluentbitv1alpha2.ClusterFilter{
{
ObjectMeta: metav1.ObjectMeta{
Name: v1beta1constants.DeploymentNameGardenerResourceManager,
Labels: map[string]string{v1beta1constants.LabelKeyCustomLoggingResource: v1beta1constants.LabelValueCustomLoggingResource},
},
Spec: fluentbitv1alpha2.FilterSpec{
Match: fmt.Sprintf("kubernetes.*%s*%s*", v1beta1constants.DeploymentNameGardenerResourceManager, containerName),
FilterItems: []fluentbitv1alpha2.FilterItem{
{
Parser: &fluentbitv1alpha2filter.Parser{
KeyName: "log",
Parser: containerName + "-parser",
ReserveData: ptr.To(true),
},
},
{
Modify: &fluentbitv1alpha2filter.Modify{
Rules: []fluentbitv1alpha2filter.Rule{
{
Rename: map[string]string{
"level": "severity",
"msg": "log",
"logger": "source",
},
},
},
},
},
},
},
},
}
}
func generateClusterParsers() []*fluentbitv1alpha2.ClusterParser {
return []*fluentbitv1alpha2.ClusterParser{
{
ObjectMeta: metav1.ObjectMeta{
Name: containerName + "-parser",
Labels: map[string]string{v1beta1constants.LabelKeyCustomLoggingResource: v1beta1constants.LabelValueCustomLoggingResource},
},
Spec: fluentbitv1alpha2.ParserSpec{
JSON: &fluentbitv1alpha2parser.JSON{
TimeKey: "ts",
TimeFormat: "%Y-%m-%dT%H:%M:%S.%L",
},
},
},
}
}