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/*
* Copyright (c) 2017-2018 Samsung Electronics Co., Ltd All Rights Reserved
*
* 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 (
"flag"
"log"
"net"
"net/rpc"
"os"
"os/signal"
"git.tizen.org/tools/boruta/dryad"
"git.tizen.org/tools/boruta/dryad/conf"
dryad_rpc "git.tizen.org/tools/boruta/rpc/dryad"
superviser_rpc "git.tizen.org/tools/boruta/rpc/superviser"
)
var (
confPath string
configuration *conf.General
)
func init() {
configuration = conf.NewConf()
flag.StringVar(&confPath, "conf", "/etc/boruta/dryad.conf", "path to the configuration file")
}
func exitOnErr(ctx string, err error) {
if err != nil {
log.Fatal(ctx, err)
}
}
func generateConfFile() {
f, err := os.Create(confPath)
exitOnErr("can't create configuration file:", err)
defer f.Close()
exitOnErr("can't generate new configuration:", configuration.Marshal(f))
}
func readConfFile() {
f, err := os.Open(confPath)
exitOnErr("can't open configuration file:", err)
defer f.Close()
exitOnErr("can't parse configuration:", configuration.Unmarshal(f))
}
func main() {
flag.Parse()
// Read configuration.
_, err := os.Stat(confPath)
if err != nil {
if os.IsNotExist(err) {
generateConfFile()
log.Fatal("configuration file generated. Please edit it first")
}
log.Fatal("can't access file:", err)
}
readConfFile()
rusalka := dryad.NewRusalka(configuration.User.Name, configuration.User.Groups)
l, err := net.Listen("tcp", configuration.Address)
exitOnErr("can't listen on port:", err)
defer l.Close()
srv := rpc.NewServer()
err = dryad_rpc.RegisterDryadService(srv, rusalka)
exitOnErr("can't start RPC service:", err)
go srv.Accept(l)
boruta, err := superviser_rpc.DialSuperviserClient(configuration.BorutaAddress)
exitOnErr("failed to initialize connection to boruta:", err)
defer boruta.Close()
err = boruta.Register(configuration.Caps)
exitOnErr("failed to register to boruta:", err)
// Wait for interrupt.
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
<-c
}
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