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feat: Add cmdline flag for log level #324

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nantiferov wants to merge 1 commit into from
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feat: Add cmdline flag for log level #324

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21 changes: 20 additions & 1 deletion cmd/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -75,6 +75,8 @@ func main() {
var enableHTTP2 bool
var tlsOpts []func(*tls.Config)
var watchNamespaces []string
var logLevel zapcore.LevelEnabler

flag.StringVar(&metricsAddr, "metrics-bind-address", "0", "The address the metrics endpoint binds to. "+
"Use :8443 for HTTPS or :8080 for HTTP, or leave as 0 to disable the metrics service.")
flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.")
Expand Down Expand Up @@ -107,12 +109,29 @@ func main() {
watchNamespaces = append(watchNamespaces, s)
return nil
})
flag.Func("log-level", "Log level for operator output (debug/info/warn/error).", func(s string) error {
switch strings.ToLower(s) {
case "debug":
logLevel = zapcore.DebugLevel
case "info", "":
logLevel = zapcore.InfoLevel
case "warn":
logLevel = zapcore.WarnLevel
case "error":
logLevel = zapcore.ErrorLevel
default:
return fmt.Errorf("log-level: %s, valid: debug/info/warn/error", s)
}
return nil
})
flag.Parse()

opts := zap.Options{
Development: true,
StacktraceLevel: zapcore.FatalLevel,
Level: logLevel,
}
opts.BindFlags(flag.CommandLine)
flag.Parse()

ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))

Expand Down