7d90e0b1f4
Usage of ./stackube-controller:
--alsologtostderr log to standard error as well as files
--cloudconfig string path to stackube config file (default "/etc/stackube.conf")
--kubeconfig string path to kubernetes admin config file (default "/etc/kubernetes/admin.conf")
--log-backtrace-at traceLocation when logging hits line file:N, emit a stack trace (default :0)
--log-dir string If non-empty, write log files in this directory
--log-flush-frequency duration Maximum number of seconds between log flushes (default 5s)
--logtostderr log to standard error instead of files (default true)
--stderrthreshold severity logs at or above this threshold go to stderr (default 2)
-v, --v Level log level for V logs
--vmodule moduleSpec comma-separated list of pattern=N settings for file-filtered logging
Change-Id: I2dfa762c3e076c7e41b49b4f27c3868bed03eba8
Signed-off-by: Pengfei Ni <feiskyer@gmail.com>
45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
package util
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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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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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