Only execlude cayley on top level in gitignore

.gitignore

@@ -8,10 +8,9 @@ cayley.json
 .cayley_history
 .DS_Store
 
-# The built binary
-cayley/
 dist/
 vendor/
 ui/
 packrd/packed-*
-cayley
+# The build binary
+/cayley

cmd/cayley/command/health.go

@@ -0,0 +1,29 @@
+package command
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/spf13/cobra"
+)
+
+const defaultAddress = "http://localhost:64210/"
+
+func NewHealthCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:     "health",
+		Aliases: []string{},
+		Short:   "Health check HTTP server",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if len(args) > 1 {
+				return fmt.Errorf("Too many arguments provided, expected 0 or 1")
+			}
+			address := defaultAddress
+			if len(args) == 1 {
+				address = args[0]
+			}
+			_, err := http.Get(address + "/health")
+			return err
+		},
+	}
+}