From 7cdf9f67a697262a8bd58868611bb51b3387323c Mon Sep 17 00:00:00 2001
From: varusan <subaru.nakamura@drecom.co.jp>
Date: Fri, 26 Oct 2018 16:43:35 +0900
Subject: [PATCH] multi-stage build

---
 Dockerfile | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 57b6029..ccf3819 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 #
 # VERSION               0.0.1
 
-FROM     drecom/centos-base:latest
+FROM     drecom/centos-base:latest AS build
 
 MAINTAINER Drecom Technical Development Department <pr_itn@drecom.co.jp>
 
@@ -27,4 +27,11 @@ ENV PATH /usr/local/rbenv/bin:/usr/local/rbenv/shims:$PATH
 RUN eval "$(rbenv init -)"; rbenv install 2.3.1 \
 &&  eval "$(rbenv init -)"; rbenv global 2.3.1 \
 &&  eval "$(rbenv init -)"; gem update --system \
-&&  eval "$(rbenv init -)"; gem install bundler
+&&  eval "$(rbenv init -)"; gem install bundler --force
+
+FROM centos:7
+ENV RBENV_ROOT /usr/local/rbenv
+COPY --from=build $RBENV_ROOT $RBENV_ROOT
+ENV PATH /usr/local/rbenv/bin:/usr/local/rbenv/shims:$PATH
+RUN echo 'export RBENV_ROOT=/usr/local/rbenv' >> /root/.bashrc \
+&&  echo 'eval "$(rbenv init -)"' >> /root/.bashrc