From 6a36ff75983eb961c732e09ebcc9b26619616ce1 Mon Sep 17 00:00:00 2001
From: Joseph Frazier <1212jtraceur@gmail.com>
Date: Tue, 12 Jun 2018 17:42:10 -0400
Subject: [PATCH] Don't prompt user for time zone in during Docker build

See https://askubuntu.com/questions/909277/avoiding-user-interaction-with-tzdata-when-installing-certbot-in-a-docker-container
---
 Dockerfile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Dockerfile b/Dockerfile
index 70041d4..a51d2ca 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 from ubuntu:18.04
 
 # Install prerequisites
+env DEBIAN_FRONTEND=noninteractive
 run apt-get update && apt-get install -y \
     build-essential \
     cmake \