From f98fde3d83a103126ae58b2b7c991b730e73a6e2 Mon Sep 17 00:00:00 2001
From: Knut Ahlers <knut@ahlers.me>
Date: Sun, 7 Jan 2018 01:33:09 +0100
Subject: [PATCH] Update Dockerfile

- Switch to debian as base image
- Reduce number of layers
- Reduce image size

Signed-off-by: Knut Ahlers <knut@ahlers.me>
---
 Dockerfile                             | 40 +++++++++++---------------
 scripts/docker-ts3.sh => docker-ts3.sh |  0
 2 files changed, 16 insertions(+), 24 deletions(-)
 rename scripts/docker-ts3.sh => docker-ts3.sh (100%)
 mode change 100644 => 100755

diff --git a/Dockerfile b/Dockerfile
index 0d484fd..9822ecf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,35 +1,27 @@
-###############################################
-# Ubuntu with added Teamspeak 3 Server.
-# Uses SQLite Database on default.
-###############################################
+FROM debian
 
-# Using latest Ubuntu image as base
-FROM ubuntu:16.04
+LABEL maintainer Knut Ahlers <knut@ahlers.me>
 
-MAINTAINER Alex
+ENV TEAMSPEAK_VERSION=3.0.13.8 \
+    TEAMSPEAK_SHA256=460c771bf58c9a49b4be2c677652f21896b98a021d7fff286e59679b3f987a59
 
-RUN apt-get update \
-        && apt-get install -y wget bzip2 --no-install-recommends \
-        && rm -r /var/lib/apt/lists/*
+RUN set -ex \
+ && apt-get update \
+ && apt-get install -y curl bzip2 --no-install-recommends \
+ && curl -sSfLo teamspeak3-server_linux-amd64.tar.bz2 \
+      http://dl.4players.de/ts/releases/${TEAMSPEAK_VERSION}/teamspeak3-server_linux_amd64-${TEAMSPEAK_VERSION}.tar.bz2 \
+ && echo "${TEAMSPEAK_SHA256} *teamspeak3-server_linux-amd64.tar.bz2" | sha256sum -c - \
+ && tar -C /opt -xjf teamspeak3-server_linux-amd64.tar.bz2 \
+ && rm teamspeak3-server_linux-amd64.tar.bz2 \
+ && apt-get purge -y curl bzip2 && apt-get autoremove -y \
+ && rm -r /var/lib/apt/lists/*
 
-## Set some variables for override.
-# Download Link of TS3 Server
-ENV TEAMSPEAK_VERSION 3.0.13.8
-ENV TEAMSPEAK_SHA256 460c771bf58c9a49b4be2c677652f21896b98a021d7fff286e59679b3f987a59
+ADD docker-ts3.sh /opt/docker-ts3.sh
 
 # Inject a Volume for any TS3-Data that needs to be persisted or to be accessible from the host. (e.g. for Backups)
 VOLUME ["/teamspeak3"]
 
-# Download TS3 file and extract it into /opt.
-RUN wget -O teamspeak3-server_linux-amd64.tar.bz2 http://dl.4players.de/ts/releases/${TEAMSPEAK_VERSION}/teamspeak3-server_linux_amd64-${TEAMSPEAK_VERSION}.tar.bz2 \
-        && echo "${TEAMSPEAK_SHA256} *teamspeak3-server_linux-amd64.tar.bz2" | sha256sum -c - \
-        && tar -C /opt -xjf teamspeak3-server_linux-amd64.tar.bz2 \
-        && rm teamspeak3-server_linux-amd64.tar.bz2
-
-ADD /scripts/ /opt/scripts/
-RUN chmod -R 774 /opt/scripts/
-
-CMD ["/opt/scripts/docker-ts3.sh"]
+CMD ["/opt/docker-ts3.sh"]
 
 # Expose the Standard TS3 port, for files, for serverquery
 EXPOSE 9987/udp 30033 10011
diff --git a/scripts/docker-ts3.sh b/docker-ts3.sh
old mode 100644
new mode 100755
similarity index 100%
rename from scripts/docker-ts3.sh
rename to docker-ts3.sh