Wait for userdocker to start

cmd/wait/wait.go

@@ -0,0 +1,19 @@
+package wait
+
+import (
+	"os"
+
+	"github.com/Sirupsen/logrus"
+	"github.com/rancherio/os/config"
+	"github.com/rancherio/os/docker"
+)
+
+func Main() {
+	_, err := docker.NewClient(config.DOCKER_HOST)
+	if err != nil {
+		logrus.Errorf("Failed to conect to Docker")
+		os.Exit(1)
+	}
+
+	logrus.Infof("Docker is ready")
+}