From 8a99f4564a725caf226861fde8f9ddf2c8ebe5e5 Mon Sep 17 00:00:00 2001
From: Johannes Loher <johannes.loher@fg4f.de>
Date: Thu, 29 Nov 2018 00:51:18 +0100
Subject: [PATCH] Use a multi stage docker build and build app in release mode

---
 Dockerfile | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 38d854c..a3800c8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,12 +1,28 @@
-FROM dlang2/dmd-ubuntu
+FROM dlang2/dmd-ubuntu:2.083.0 as build
 WORKDIR /dlang/vibe-docker
 COPY . .
 
-RUN useradd --user-group --create-home --shell /bin/false app
-RUN chown -R app:app /dlang/vibe-docker
+RUN useradd --user-group --create-home --shell /bin/false app && \
+    chown -R app:app /dlang/vibe-docker
 USER app
 
-RUN dub build
+RUN dub build --build=release
+
+FROM ubuntu:17.10
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN set -ex && \
+    apt-get update && \
+    apt-get install --no-install-recommends -y \
+    ca-certificates \
+    libssl1.0.0
+
+COPY --from=build /dlang/vibe-docker/vibe-docker /dlang/vibe-docker/vibe-docker
+
+RUN useradd --user-group --create-home --shell /bin/false app && \
+    chown -R app:app /dlang/vibe-docker
+USER app
 
 EXPOSE 8080