add hpeer for non-node peers

Signed-off-by: Evan Hazlett <ejhazlett@gmail.com>

cmd/hpeer/main.go

@@ -0,0 +1,96 @@
+/*
+	Copyright 2019 Stellar Project
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy of
+	this software and associated documentation files (the "Software"), to deal in the
+	Software without restriction, including without limitation the rights to use, copy,
+	modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
+	and to permit persons to whom the Software is furnished to do so, subject to the
+	following conditions:
+
+	The above copyright notice and this permission notice shall be included in all copies
+	or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+	INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+	PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+	FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+	TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+	USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+package main
+
+import (
+	"os"
+	"time"
+
+	"github.com/sirupsen/logrus"
+	"github.com/stellarproject/heimdall"
+	"github.com/stellarproject/heimdall/version"
+	"github.com/urfave/cli"
+)
+
+func main() {
+	app := cli.NewApp()
+	app.Name = "hpeer"
+	app.Version = version.BuildVersion()
+	app.Author = "@stellarproject"
+	app.Email = ""
+	app.Usage = version.Description
+	app.Flags = []cli.Flag{
+		cli.BoolFlag{
+			Name:  "debug, D",
+			Usage: "Enable debug logging",
+		},
+		cli.StringFlag{
+			Name:   "id",
+			Usage:  "peer id for cluster",
+			Value:  heimdall.NodeID(),
+			EnvVar: "HEIMDALL_ID",
+		},
+		cli.StringFlag{
+			Name:   "addr",
+			Usage:  "heimdall peer address to join",
+			Value:  "tcp://127.0.0.1:9000",
+			EnvVar: "HEIMDALL_ADDR",
+		},
+		cli.DurationFlag{
+			Name:   "update-interval",
+			Usage:  "interval in which to update with the cluster",
+			Value:  time.Second * 10,
+			EnvVar: "HEIMDALL_UPDATE_INTERVAL",
+		},
+		cli.StringFlag{
+			Name:   "interface-name",
+			Usage:  "interface name to use for peer communication (must not exist)",
+			Value:  "darknet",
+			EnvVar: "HEIMDALL_INTERFACE_NAME",
+		},
+		cli.StringFlag{
+			Name:  "cert, c",
+			Usage: "heimdall client certificate",
+			Value: "",
+		},
+		cli.StringFlag{
+			Name:  "key, k",
+			Usage: "heimdall client key",
+			Value: "",
+		},
+		cli.BoolFlag{
+			Name:  "skip-verify",
+			Usage: "skip TLS verification",
+		},
+	}
+	app.Before = func(c *cli.Context) error {
+		if c.Bool("debug") {
+			logrus.SetLevel(logrus.DebugLevel)
+		}
+		return nil
+	}
+	app.Action = run
+
+	if err := app.Run(os.Args); err != nil {
+		logrus.Fatal(err)
+	}
+}

cmd/hpeer/run.go

@@ -0,0 +1,89 @@
+/*
+	Copyright 2019 Stellar Project
+
+	Permission is hereby granted, free of charge, to any person obtaining a copy of
+	this software and associated documentation files (the "Software"), to deal in the
+	Software without restriction, including without limitation the rights to use, copy,
+	modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
+	and to permit persons to whom the Software is furnished to do so, subject to the
+	following conditions:
+
+	The above copyright notice and this permission notice shall be included in all copies
+	or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+	INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+	PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+	FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+	TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+	USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+package main
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/sirupsen/logrus"
+	"github.com/stellarproject/heimdall"
+	"github.com/stellarproject/heimdall/peer"
+	"github.com/stellarproject/heimdall/version"
+	"github.com/urfave/cli"
+)
+
+func run(cx *cli.Context) error {
+	cfg := &heimdall.PeerConfig{
+		ID:             cx.String("id"),
+		Address:        cx.String("addr"),
+		UpdateInterval: cx.Duration("update-interval"),
+		InterfaceName:  cx.String("interface-name"),
+	}
+	p, err := peer.NewPeer(cfg)
+	if err != nil {
+		return err
+	}
+
+	errCh := make(chan error, 1)
+
+	signals := make(chan os.Signal)
+	signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM, syscall.SIGUSR1)
+	doneCh := make(chan bool, 1)
+	go func() {
+		for {
+			select {
+			case sig := <-signals:
+				switch sig {
+				case syscall.SIGTERM, syscall.SIGINT:
+					logrus.Info("shutting down")
+					if err := p.Stop(); err != nil {
+						errCh <- err
+					}
+					doneCh <- true
+				default:
+					logrus.Warnf("unhandled signal %s", sig)
+				}
+			}
+		}
+	}()
+
+	logrus.WithFields(logrus.Fields{
+		"version": version.Version,
+		"commit":  version.GitCommit,
+	}).Infof("starting %s", version.Name)
+	go func() {
+		if err := p.Run(); err != nil {
+			errCh <- err
+		}
+	}()
+
+	select {
+	case <-doneCh:
+		return nil
+	case err := <-errCh:
+		return err
+	}
+
+	return nil
+}