added server; initial cluster state

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

cmd/hctl/main.go

@@ -0,0 +1,104 @@
+/*
+	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 (
+	"fmt"
+	"os"
+
+	"github.com/sirupsen/logrus"
+	"github.com/stellarproject/heimdall"
+	"github.com/stellarproject/heimdall/client"
+	"github.com/stellarproject/heimdall/version"
+	"github.com/urfave/cli"
+	"google.golang.org/grpc"
+)
+
+func main() {
+	app := cli.NewApp()
+	app.Name = "actl"
+	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:   "addr, a",
+			Usage:  "heimdall grpc address",
+			Value:  "tcp://127.0.0.1:9000",
+			EnvVar: "ATLAS_ADDR",
+		},
+		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.Commands = []cli.Command{}
+
+	if err := app.Run(os.Args); err != nil {
+		logrus.Fatal(err)
+	}
+}
+
+func getClient(c *cli.Context) (*client.Client, error) {
+	cert := c.GlobalString("cert")
+	key := c.GlobalString("key")
+	skipVerification := c.GlobalBool("skip-verify")
+
+	cfg := &heimdall.Config{
+		TLSClientCertificate:  cert,
+		TLSClientKey:          key,
+		TLSInsecureSkipVerify: skipVerification,
+	}
+
+	opts, err := client.DialOptionsFromConfig(cfg)
+	if err != nil {
+		return nil, err
+	}
+	opts = append(opts,
+		grpc.WithBlock(),
+		grpc.WithUserAgent(fmt.Sprintf("%s/%s", version.Name, version.Version)),
+	)
+
+	addr := c.GlobalString("addr")
+	return client.NewClient(heimdall.NodeID(), addr, opts...)
+}