uplink: encryption key setup (#414)

cmd/uplink/cmd/run.go

@@ -4,7 +4,6 @@
 package cmd
 
 import (
-	"errors"
 	"fmt"
 	"net"
 
@@ -48,7 +47,8 @@ func cmdRun(cmd *cobra.Command, args []string) (err error) {
 
 	_, _, err = bs.List(ctx, "", "", 0)
 	if err != nil {
-		return errors.New("uplink setup error")
+		return fmt.Errorf("Failed to contact Satellite.\n"+
+			"Perhaps your configuration is invalid?\n%s", err)
 	}
 
 	return cfg.Run(process.Ctx(cmd))

cmd/uplink/cmd/setup.go

@@ -30,6 +30,7 @@ var (
 		Overwrite     bool   `default:"false" help:"whether to overwrite pre-existing configuration files"`
 		SatelliteAddr string `default:"localhost:7778" help:"the address to use for the satellite"`
 		APIKey        string `default:"" help:"the api key to use for the satellite"`
+		EncKey        string `default:"" help:"your root encryption key"`
 	}
 )
 
@@ -89,6 +90,7 @@ func cmdSetup(cmd *cobra.Command, args []string) (err error) {
 		"overlay-addr":    setupCfg.SatelliteAddr,
 		"access-key":      accessKey,
 		"secret-key":      secretKey,
+		"enc-key":         setupCfg.EncKey,
 	}
 
 	return process.SaveConfig(runCmd.Flags(),