# HG changeset patch
# User akahori
# Date 1553188463 -32400
# Node ID f3fc48fa7287cb985c46d57797cc057e4ca73114
# Parent  95eafbd91f4100ad8b38370b0359dfb6a4846e42
refactor dockerfile

diff -r 95eafbd91f41 -r f3fc48fa7287 Dockerfile
--- a/Dockerfile	Fri Mar 22 01:59:33 2019 +0900
+++ b/Dockerfile	Fri Mar 22 02:14:23 2019 +0900
@@ -1,9 +1,15 @@
 FROM alpine:3.9
 
 # slideshow 4.1.0 is latest now
-RUN apk add --update --no-cache ruby ruby-json ruby-bigdecimal ruby-etc \
+ARG slideshow_version="4.1.0"
+ARG ruby_version="2.5.3-r1"
+
+RUN apk add --update --no-cache ruby==${ruby_version}  \
+         ruby-json==${ruby_version} \
+         ruby-bigdecimal==${ruby_version} \
+         ruby-etc==${ruby_version} \
          mercurial &&\
-         gem install -N slideshow -v 4.1.0 && \ 
+         gem install -N slideshow -v ${slideshow_version} && \ 
          mkdir -p ~/.slideshow/templates &&\
          hg clone http://www.cr.ie.u-ryukyu.ac.jp/hg/Members/anatofuz/slideshow-s6cr/ ~/.slideshow/templates &&\
          apk del mercurial