1. change glog to klog

2. move types to api package to avoid cyclic import

pkg/server/options/options.go

@@ -0,0 +1,83 @@
+/*
+
+ Copyright 2019 The KubeSphere Authors.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+*/
+package options
+
+import (
+	"fmt"
+	"github.com/spf13/pflag"
+	"kubesphere.io/kubesphere/pkg/utils/net"
+)
+
+type ServerRunOptions struct {
+	// server bind address
+	BindAddress string
+
+	// insecure port number
+	InsecurePort int
+
+	// secure port number
+	SecurePort int
+
+	// tls cert file
+	TlsCertFile string
+
+	// tls private key file
+	TlsPrivateKey string
+}
+
+func NewServerRunOptions() *ServerRunOptions {
+	// create default server run options
+	s := ServerRunOptions{
+		BindAddress:   "0.0.0.0",
+		InsecurePort:  9090,
+		SecurePort:    0,
+		TlsCertFile:   "",
+		TlsPrivateKey: "",
+	}
+
+	return &s
+}
+
+func (s *ServerRunOptions) Validate() []error {
+	errs := []error{}
+
+	if s.SecurePort == 0 && s.InsecurePort == 0 {
+		errs = append(errs, fmt.Errorf("insecure and secure port can not be disabled at the same time"))
+	}
+
+	if net.IsValidPort(s.SecurePort) {
+		if s.TlsCertFile == "" {
+			errs = append(errs, fmt.Errorf("tls cert file is empty while secure serving"))
+		}
+
+		if s.TlsPrivateKey == "" {
+			errs = append(errs, fmt.Errorf("tls private key file is empty while secure serving"))
+		}
+	}
+
+	return errs
+}
+
+func (s *ServerRunOptions) AddFlags(fs *pflag.FlagSet) {
+
+	fs.StringVar(&s.BindAddress, "bind-address", "0.0.0.0", "server bind address")
+	fs.IntVar(&s.InsecurePort, "insecure-port", 9090, "insecure port number")
+	fs.IntVar(&s.SecurePort, "secure-port", 0, "secure port number")
+	fs.StringVar(&s.TlsCertFile, "tls-cert-file", "", "tls cert file")
+	fs.StringVar(&s.TlsPrivateKey, "tls-private-key", "", "tls private key")
+}