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/
server.go
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/
server.go
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// Copyright 2017 Ross Peoples
//
// 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 main
import (
"fmt"
"log"
"net/url"
"os"
"github.com/coreos/etcd/embed"
"github.com/deejross/mydis/mydis"
)
var (
defaultConfigFile = "/etc/mydis/mydis.conf"
defaultAddressHTTP1 = "0.0.0.0:8000"
defaultAddressHTTP2 = "0.0.0.0:8383"
)
func main() {
cfg := loadConfig()
server := mydis.NewServer(cfg)
err := server.Start(getAddressHTTP1(), getAddressHTTP2())
if err != nil {
fmt.Println(err)
log.Fatalln(err)
}
select {} // block forever
}
func getAddressHTTP1() string {
if port := os.Getenv("PORT"); port != "" {
return "0.0.0.0:" + port
}
return defaultAddressHTTP1
}
func getAddressHTTP2() string {
if address := os.Getenv("MYDIS_ADDRESS"); address != "" {
return address
}
return defaultAddressHTTP2
}
func loadConfig() *embed.Config {
args := os.Args
if len(args) > 1 {
if cfg, err := embed.ConfigFromFile(args[1]); err != nil {
return cfg
}
}
if cfg, err := embed.ConfigFromFile(defaultConfigFile); err == nil {
return cfg
}
if cfg, err := embed.ConfigFromFile("mydis.conf"); err == nil {
return cfg
}
log.Println("Unable to open config file, using default settings")
return NewServerConfig()
}
// NewServerConfig returns a new server Config object with defaults set.
func NewServerConfig() *embed.Config {
cfg := embed.NewConfig()
cfg.LCUrls = []url.URL{}
cfg.LPUrls = []url.URL{}
cfg.Dir = "default.etcd"
cfg.ClientAutoTLS = true
return cfg
}