Switched to my base image, updated to v0.10.3

Dockerfile

@@ -1,18 +1,18 @@
-FROM alpine:edge
-MAINTAINER Jan Christian Grünhage <mail@janchristiangruenhage.de>
+FROM	jcgruenhage/baseimage-alpine
+MAINTAINER Jan Christian Grünhage <jan.christian@gruenhage.xyz>
 
-ENV GOPATH /gopath
-ENV CADDY_REPO_OWNER mholt
-ENV CADDY_REPO_NAME caddy
-ENV CADDY_BRANCH tags/v0.10.2
-ENV CADDYPATH /caddy
-ENV UID 192
-ENV GID 192
+ENV GOPATH=/gopath \
+      CADDY_REPO_OWNER=mholt \
+      CADDY_REPO_NAME=caddy \
+      CADDY_BRANCH=tags/v0.10.3 \
+      CADDYPATH=/caddy \
+      UID=192 \
+      GID=192
 
-COPY plugins.txt /plugins
+ADD	plugins.txt /plugins
 
-RUN apk add --update musl \
-	&& apk add --no-cache build-base su-exec libcap tini go git \
+RUN	apk upgrade --update \
+ 			&& apk add build-base su-exec libcap go git \
 			&& mkdir -p $GOPATH/src/github.com/$CADDY_REPO_OWNER \
 			&& cd $GOPATH/src/github.com/$CADDY_REPO_OWNER \
 			&& git clone https://github.com/$CADDY_REPO_OWNER/$CADDY_REPO_NAME \
@@ -33,9 +33,7 @@ RUN apk add --update musl \
 			&& mkdir $CADDYPATH \
 			&& rm -rf $GOPATH /var/cache/apk/* /plugins
 
-COPY root /
+ADD	root /
 
 EXPOSE		2015 80 443
 VOLUME		["$CADDYPATH"]
-WORKDIR		"$CADDYPATH"
-ENTRYPOINT	["/sbin/tini", "--", "/usr/local/bin/run.sh"]

root/etc/s6.d/caddy/finish

@@ -0,0 +1 @@
+#!/bin/sh