forked from kubevirt/containerized-data-importer
/
uploadserver.go
102 lines (81 loc) · 2.13 KB
/
uploadserver.go
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/*
* This file is part of the CDI project
*
* 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.
*
* Copyright 2018 Red Hat, Inc.
*
*/
package main
import (
"flag"
"os"
"strconv"
"k8s.io/klog"
"kubevirt.io/containerized-data-importer/pkg/common"
"kubevirt.io/containerized-data-importer/pkg/uploadserver"
)
const (
defaultListenPort = 8443
defaultListenAddress = "0.0.0.0"
defaultDestination = common.ImporterWritePath
)
func init() {
klog.InitFlags(nil)
flag.Parse()
}
func main() {
defer klog.Flush()
listenAddress, listenPort := getListenAddressAndPort()
destination := getDestination()
server := uploadserver.NewUploadServer(
listenAddress,
listenPort,
destination,
os.Getenv("TLS_KEY"),
os.Getenv("TLS_CERT"),
os.Getenv("CLIENT_CERT"),
os.Getenv("CLIENT_NAME"),
os.Getenv(common.UploadImageSize),
)
klog.Infof("Upload destination: %s", destination)
klog.Infof("Running server on %s:%d", listenAddress, listenPort)
err := server.Run()
if err != nil {
klog.Errorf("UploadServer failed: %s", err)
os.Exit(1)
}
klog.Info("UploadServer successfully exited")
}
func getListenAddressAndPort() (string, int) {
addr, port := defaultListenAddress, defaultListenPort
// empty value okay here
if val, exists := os.LookupEnv("LISTEN_ADDRESS"); exists {
addr = val
}
// not okay here
if val := os.Getenv("LISTEN_PORT"); len(val) > 0 {
n, err := strconv.ParseUint(val, 10, 16)
if err == nil {
port = int(n)
}
}
return addr, port
}
func getDestination() string {
destination := defaultDestination
if val := os.Getenv("DESTINATION"); len(val) > 0 {
destination = val
}
return destination
}