61 lines
1.7 KiB
Go
61 lines
1.7 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package logs
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import (
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"flag"
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"log"
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"time"
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"github.com/golang/glog"
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"github.com/spf13/pflag"
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"k8s.io/apimachinery/pkg/util/wait"
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)
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var logFlushFreq = pflag.Duration("log-flush-frequency", 5*time.Second, "Maximum number of seconds between log flushes")
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// TODO(thockin): This is temporary until we agree on log dirs and put those into each cmd.
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func init() {
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flag.Set("logtostderr", "true")
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}
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// GlogWriter serves as a bridge between the standard log package and the glog package.
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type GlogWriter struct{}
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// Write implements the io.Writer interface.
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func (writer GlogWriter) Write(data []byte) (n int, err error) {
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glog.Info(string(data))
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return len(data), nil
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}
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// InitLogs initializes logs the way we want for kubernetes.
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func InitLogs() {
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log.SetOutput(GlogWriter{})
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log.SetFlags(0)
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// The default glog flush interval is 30 seconds, which is frighteningly long.
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go wait.Until(glog.Flush, *logFlushFreq, wait.NeverStop)
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}
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// FlushLogs flushes logs immediately.
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func FlushLogs() {
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glog.Flush()
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}
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// NewLogger creates a new log.Logger which sends logs to glog.Info.
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func NewLogger(prefix string) *log.Logger {
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return log.New(GlogWriter{}, prefix, 0)
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}
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