Prepare for release (#37)

* Prepare for release

Added LICENSE, set version and configured GoReleaser/Docker

* Updated LICENSE

internal/command/controller/run.go

@@ -5,18 +5,32 @@ import (
 	"errors"
 	"fmt"
 	"github.com/cirruslabs/orchard/internal/controller"
+	"github.com/cirruslabs/orchard/internal/netconstants"
 	"github.com/spf13/cobra"
 	"go.uber.org/zap"
+	"os"
+	"strconv"
 )
 
 var ErrRunFailed = errors.New("failed to run controller")
 
+var address string
+
 func newRunCommand() *cobra.Command {
-	return &cobra.Command{
+	cmd := &cobra.Command{
 		Use:   "run",
 		Short: "Run the controller",
 		RunE:  runController,
 	}
+
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = strconv.FormatInt(netconstants.DefaultControllerPort, 10)
+	}
+
+	cmd.PersistentFlags().StringVarP(&address, "listen", "l", fmt.Sprintf(":%s", port), "address to listen on")
+
+	return cmd
 }
 
 func runController(cmd *cobra.Command, args []string) (err error) {
@@ -53,6 +67,7 @@ func runController(cmd *cobra.Command, args []string) (err error) {
 	}
 
 	controller, err := controller.New(
+		controller.WithListenAddr(address),
 		controller.WithDataDir(dataDir),
 		controller.WithLogger(logger),
 		controller.WithTLSConfig(&tls.Config{

internal/command/root.go

@@ -11,6 +11,7 @@ import (
 	"github.com/cirruslabs/orchard/internal/command/portforward"
 	"github.com/cirruslabs/orchard/internal/command/stop"
 	"github.com/cirruslabs/orchard/internal/command/worker"
+	"github.com/cirruslabs/orchard/internal/version"
 	"github.com/spf13/cobra"
 )
 
@@ -19,6 +20,7 @@ func NewRootCmd() *cobra.Command {
 		Use:           "orchard",
 		SilenceUsage:  true,
 		SilenceErrors: true,
+		Version:       version.FullVersion,
 	}
 
 	addGroupedCommands(command, "Working With Resources:",

internal/version/version.go

@@ -0,0 +1,33 @@
+package version
+
+import (
+	"fmt"
+	goversion "github.com/hashicorp/go-version"
+	"runtime/debug"
+)
+
+var (
+	Version     = "unknown"
+	Commit      = "unknown"
+	FullVersion = ""
+)
+
+//nolint:gochecknoinits
+func init() {
+	if Version == "unknown" {
+		info, ok := debug.ReadBuildInfo()
+		if ok {
+			// We parse the version here for two reasons:
+			// * to weed out the "(devel)" version and fallback to "unknown" instead
+			//   (see https://github.com/golang/go/issues/29228 for details on when this might happen)
+			// * to remove the "v" prefix from the BuildInfo's version (e.g. "v0.7.0") and thus be consistent
+			//   with the binary builds, where the version string would be "0.7.0" instead
+			semver, err := goversion.NewSemver(info.Main.Version)
+			if err == nil {
+				Version = semver.String()
+			}
+		}
+	}
+
+	FullVersion = fmt.Sprintf("%s-%s", Version, Commit)
+}