From 1956428abd5f6703a43b8c5a04fda04056881646 Mon Sep 17 00:00:00 2001
From: Lukas Prettenthaler <lukas@noenv.com>
Date: Wed, 1 Jan 2020 21:06:13 +0100
Subject: [PATCH] switch to alpine parent

---
 Dockerfile | 31 +++++++++++++++----------------
 1 file changed, 15 insertions(+), 16 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 3983a8c..f582f08 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,24 +1,23 @@
-FROM debian:buster-slim
+FROM alpine:3.11 as builder
 
-# zerotier-one version
 ARG ZT_VERSION=1.4.6
 
-LABEL maintainer="Lukas Prettenthaler (zyclonite)"
-LABEL version="$ZT_VERSION"
-LABEL description="Containerized ZeroTier One for use on CoreOS or other Docker-only Linux hosts."
+RUN apk add --update alpine-sdk linux-headers \
+  && git clone --depth 1 --branch ${ZT_VERSION} https://github.com/zerotier/ZeroTierOne.git /src \
+  && cd /src \
+  && make -f make-linux.mk
 
-# Configure environment
-ENV ZT_VERSION=${ZT_VERSION}
+FROM alpine:3.11
+LABEL version="1.4.6"
+LABEL description="ZeroTier One Docker-only Linux hosts"
 
-RUN apt-get update \
- && apt-get install -y gnupg2 \
- && apt-key adv --fetch-keys http://download.zerotier.com/contact%40zerotier.com.gpg \
- && echo "deb http://download.zerotier.com/debian/buster buster main" > /etc/apt/sources.list.d/zerotier.list \
- && apt-get update \
- && apt-get install -y zerotier-one=${ZT_VERSION} \
- && rm -rf /var/lib/apt/lists/*
+RUN apk add --update libgcc libc6-compat libstdc++
 
-VOLUME /var/lib/zerotier-one
-EXPOSE 9993
+EXPOSE 9993/udp
+
+COPY --from=builder /src/zerotier-one /usr/sbin/
+RUN mkdir -p /var/lib/zerotier-one \
+  && ln -s /usr/sbin/zerotier-one /usr/sbin/zerotier-idtool \
+  && ln -s /usr/sbin/zerotier-one /usr/sbin/zerotier-cli
 
 ENTRYPOINT ["zerotier-one"]