etcd/etcd.go
Brandon Philips 04711ecde5 fix(etcd): fixup the name and data dir guessing
- Only generate the name from a hostname if the data dir is not
  specified and the name is not specified

- Only guess the data dir from Name if the data dir wasn't already
  specified
2013-11-27 12:20:26 -08:00

113 lines
2.9 KiB
Go

/*
Copyright 2013 CoreOS Inc.
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"
"os"
"github.com/coreos/etcd/log"
"github.com/coreos/etcd/server"
"github.com/coreos/etcd/store"
"github.com/coreos/raft"
)
func main() {
// Load configuration.
var config = server.NewConfig()
if err := config.Load(os.Args[1:]); err != nil {
fmt.Println(server.Usage() + "\n")
fmt.Println(err.Error() + "\n")
os.Exit(1)
} else if config.ShowVersion {
fmt.Println(server.ReleaseVersion)
os.Exit(0)
} else if config.ShowHelp {
fmt.Println(server.Usage() + "\n")
os.Exit(0)
}
// Enable options.
if config.VeryVerbose {
log.Verbose = true
raft.SetLogLevel(raft.Debug)
} else if config.Verbose {
log.Verbose = true
}
if config.CPUProfileFile != "" {
profile(config.CPUProfileFile)
}
// Only guess the machine name if there is no data dir specified
// because the info file will should have our name
if config.Name == "" && config.DataDir == "" {
config.NameFromHostname()
}
if config.DataDir == "" && config.Name != "" {
config.DataDirFromName()
}
if config.DataDir == "" {
log.Fatal("The data dir was not set and could not be guessed from machine name")
}
// Create data directory if it doesn't already exist.
if err := os.MkdirAll(config.DataDir, 0744); err != nil {
log.Fatalf("Unable to create path: %s", err)
}
// Load info object.
info, err := config.Info()
if err != nil {
log.Fatal("info:", err)
}
// Retrieve TLS configuration.
tlsConfig, err := info.EtcdTLS.Config()
if err != nil {
log.Fatal("Client TLS:", err)
}
peerTLSConfig, err := info.RaftTLS.Config()
if err != nil {
log.Fatal("Peer TLS:", err)
}
// Create etcd key-value store and registry.
store := store.New()
registry := server.NewRegistry(store)
// Create peer server.
ps := server.NewPeerServer(info.Name, config.DataDir, info.RaftURL, info.RaftListenHost, &peerTLSConfig, &info.RaftTLS, registry, store, config.SnapshotCount)
ps.MaxClusterSize = config.MaxClusterSize
ps.RetryTimes = config.MaxRetryAttempts
// Create client server.
s := server.New(info.Name, info.EtcdURL, info.EtcdListenHost, &tlsConfig, &info.EtcdTLS, ps, registry, store)
if err := s.AllowOrigins(config.CorsOrigins); err != nil {
panic(err)
}
ps.SetServer(s)
// Run peer server in separate thread while the client server blocks.
go func() {
log.Fatal(ps.ListenAndServe(config.Snapshot, config.Peers))
}()
log.Fatal(s.ListenAndServe())
}