From 616073d891d6c338f082abb52d47ca2652fe9cfe Mon Sep 17 00:00:00 2001
From: Arnaud Coolsaet <a.coolsaet@brightfish.be>
Date: Fri, 22 Sep 2017 09:39:01 +0200
Subject: [PATCH] allow choice of container timezone at build

---
 .gitignore |  1 +
 Dockerfile | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/.gitignore b/.gitignore
index 0f54bcd..a757d28 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 .vagrant
+.idea
 
 # Vim
 [._]*.s[a-w][a-z]
diff --git a/Dockerfile b/Dockerfile
index 36676a0..277ed14 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,6 +22,16 @@ RUN apt-get -y update \
   nodejs \
   && rm -rf /var/lib/apt/lists/*
 
+# choose a timezone at build-time
+# use `--build-arg CONTAINER_TIMEZONE=Europe/Brussels` in `docker build`
+ARG CONTAINER_TIMEZONE
+ENV DEBIAN_FRONTEND noninteractive
+
+RUN if [ ! -z "${CONTAINER_TIMEZONE}" ]; \
+    then ln -sf /usr/share/zoneinfo/$CONTAINER_TIMEZONE /etc/localtime && \
+    dpkg-reconfigure -f noninteractive tzdata; \
+    fi
+
 # fix python dependencies (LTS Django and newer memcached/txAMQP)
 RUN pip install --upgrade pip && \
   pip install django==1.8.18 \