99 lines
2.9 KiB
Go
99 lines
2.9 KiB
Go
// Copyright © 2021 The virtual-kubelet authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package klogv2 implements a virtual-kubelet/log.Logger using klogv2 as a backend
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//
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// You can use this by creating a klogv2 logger and calling `FromKlogv2(fields)`.
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// If you want this to be the default logger for virtual-kubelet, set `log.L` to the value returned by `FromKlogv2`
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//
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// We recommend reading the klog conventions to build a better understanding of levels and when they should apply
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// https://github.com/kubernetes/community/blob/master/contributors/devel/sig-instrumentation/logging.md
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package klogv2
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import (
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"github.com/virtual-kubelet/virtual-kubelet/log"
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"k8s.io/klog/v2"
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)
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// Ensure log.Logger is fully implemented during compile time.
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var _ log.Logger = (*adapter)(nil)
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// adapter implements the `log.Logger` interface for klogv2
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type adapter struct {
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fields map[string]interface{}
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}
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// FromKlogv2 creates a new `log.Logger` from the provided entry
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func FromKlogv2(fields map[string]interface{}) log.Logger {
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return &adapter{fields}
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}
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func (l *adapter) Debug(args ...interface{}) {
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klog.V(4).Info(args, l.fields)
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}
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func (l *adapter) Debugf(format string, args ...interface{}) {
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klog.V(4).Infof(format, args, l.fields)
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}
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func (l *adapter) Info(args ...interface{}) {
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klog.Info(args, l.fields)
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}
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func (l *adapter) Infof(format string, args ...interface{}) {
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klog.Infof(format, args, l.fields)
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}
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func (l *adapter) Warn(args ...interface{}) {
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klog.Warning(args, l.fields)
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}
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func (l *adapter) Warnf(format string, args ...interface{}) {
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klog.Warningf(format, args, l.fields)
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}
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func (l *adapter) Error(args ...interface{}) {
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klog.Error(args, l.fields)
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}
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func (l *adapter) Errorf(format string, args ...interface{}) {
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klog.Errorf(format, args, l.fields)
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}
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func (l *adapter) Fatal(args ...interface{}) {
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klog.Fatal(args, l.fields)
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}
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func (l *adapter) Fatalf(format string, args ...interface{}) {
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klog.Fatalf(format, args, l.fields)
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}
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// WithField adds a field to the log entry.
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func (l *adapter) WithField(key string, val interface{}) log.Logger {
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fields := map[string]interface{}{
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key: val,
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}
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return FromKlogv2(fields)
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}
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// WithFields adds multiple fields to a log entry.
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func (l *adapter) WithFields(fields log.Fields) log.Logger {
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return FromKlogv2(fields)
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}
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// WithError adds an error to the log entry
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func (l *adapter) WithError(err error) log.Logger {
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return l.WithField("err", err)
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}
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