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林志宇
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May 30, 2019
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| package commands | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "encoding/json" | ||
| "github.com/skycoin/skywire/pkg/skymsg" | ||
| "io" | ||
| "log" | ||
| "log/syslog" | ||
| "net/http" | ||
| "os" | ||
|
|
||
| "github.com/prometheus/client_golang/prometheus/promhttp" | ||
| logrus_syslog "github.com/sirupsen/logrus/hooks/syslog" | ||
| "github.com/skycoin/skycoin/src/util/logging" | ||
| "github.com/skycoin/skywire/pkg/cipher" | ||
| "github.com/skycoin/skywire/pkg/messaging-discovery/client" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
|
|
||
| var ( | ||
| metricsAddr string | ||
| syslogAddr string | ||
| tag string | ||
| cfgFromStdin bool | ||
| ) | ||
|
|
||
| // Config is a messaging-server config | ||
| type Config struct { | ||
| PubKey cipher.PubKey `json:"public_key"` | ||
| SecKey cipher.SecKey `json:"secret_key"` | ||
| Discovery string `json:"discovery"` | ||
| LocalAddress string `json:"local_address"` | ||
| PublicAddress string `json:"public_address"` | ||
| LogLevel string `json:"log_level"` | ||
| } | ||
|
|
||
| var rootCmd = &cobra.Command{ | ||
| Use: "messaging-server [config.json]", | ||
| Short: "Messaging Server for skywire", | ||
| Run: func(_ *cobra.Command, args []string) { | ||
| // Config | ||
| configFile := "config.json" | ||
| if len(args) > 0 { | ||
| configFile = args[0] | ||
| } | ||
| conf := parseConfig(configFile) | ||
|
|
||
| // Logger | ||
| logger := logging.MustGetLogger(tag) | ||
| logLevel, err := logging.LevelFromString(conf.LogLevel) | ||
| if err != nil { | ||
| log.Fatal("Failed to parse LogLevel: ", err) | ||
| } | ||
| logging.SetLevel(logLevel) | ||
|
|
||
| if syslogAddr != "" { | ||
| hook, err := logrus_syslog.NewSyslogHook("udp", syslogAddr, syslog.LOG_INFO, tag) | ||
| if err != nil { | ||
| logger.Fatalf("Unable to connect to syslog daemon on %v", syslogAddr) | ||
| } | ||
| logging.AddHook(hook) | ||
| } | ||
|
|
||
| // Metrics | ||
| go func() { | ||
| http.Handle("/metrics", promhttp.Handler()) | ||
| if err := http.ListenAndServe(metricsAddr, nil); err != nil { | ||
| logger.Println("Failed to start metrics API:", err) | ||
| } | ||
| }() | ||
|
|
||
| // Start | ||
| srv := skymsg.NewServer(conf.PubKey, conf.SecKey, conf.PublicAddress, client.NewHTTP(conf.Discovery)) | ||
| log.Fatal(srv.ListenAndServe(conf.LocalAddress)) | ||
| }, | ||
| } | ||
|
|
||
| func init() { | ||
| rootCmd.Flags().StringVarP(&metricsAddr, "metrics", "m", ":2121", "address to bind metrics API to") | ||
| rootCmd.Flags().StringVar(&syslogAddr, "syslog", "", "syslog server address. E.g. localhost:514") | ||
| rootCmd.Flags().StringVar(&tag, "tag", "messaging-server", "logging tag") | ||
| rootCmd.Flags().BoolVarP(&cfgFromStdin, "stdin", "i", false, "read configuration from STDIN") | ||
| } | ||
|
|
||
| func parseConfig(configFile string) *Config { | ||
| var rdr io.Reader | ||
| var err error | ||
| if !cfgFromStdin { | ||
| rdr, err = os.Open(configFile) | ||
| if err != nil { | ||
| log.Fatalf("Failed to open config: %s", err) | ||
| } | ||
| } else { | ||
| rdr = bufio.NewReader(os.Stdin) | ||
| } | ||
|
|
||
| conf := &Config{} | ||
| if err := json.NewDecoder(rdr).Decode(&conf); err != nil { | ||
| log.Fatalf("Failed to decode %s: %s", rdr, err) | ||
| } | ||
|
|
||
| return conf | ||
| } | ||
|
|
||
| // Execute executes root CLI command. | ||
| func Execute() { | ||
| if err := rootCmd.Execute(); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| package main | ||
|
|
||
| import "github.com/skycoin/skywire/cmd/messaging-server/commands" | ||
|
|
||
| func main() { | ||
| commands.Execute() | ||
| } |
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