Use bundler to install github_changelog_generator

ferrarimarco · ferrarimarco · commit 82e46ae55a71 · 2018-04-13T10:30:19.000Z
diff --git a/Dockerfile b/Dockerfile
@@ -2,9 +2,12 @@ FROM ruby:2.4-alpine3.7
 
 LABEL maintainer "ferrari.marco@gmail.com"
 
-ENV GITHUB_CHANGELOG_GENERATOR_VERSION "1.14.3"
+ENV BUNDLER_VERSION 1.16.1
 
-RUN gem install github_changelog_generator --version $GITHUB_CHANGELOG_GENERATOR_VERSION
+COPY Gemfile Gemfile
+RUN gem install bundler --version $BUNDLER_VERSION \
+  && bundle install --system \
+  && gem uninstall bundler
 
 ENV SRC_PATH /usr/local/src/your-app
 RUN mkdir -p $SRC_PATH
diff --git a/Gemfile b/Gemfile
@@ -0,0 +1,3 @@
+source 'https://rubygems.org' do
+  gem 'github_changelog_generator', '1.14.3'
+end

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+source 'https://rubygems.org' do`
	`2`	`+ gem 'github_changelog_generator', '1.14.3'`
	`3`	`+end`