chore: ensure matching bundler version is used in Dockerfile

pact-foundation · Jul 20, 2020 · 13d81e4 · 13d81e4
1 parent 4cec522
commit 13d81e4
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/Dockerfile b/Dockerfile
@@ -12,8 +12,9 @@ RUN set -ex && \
 # Install Gems
 WORKDIR $HOME
 COPY pact_broker/Gemfile pact_broker/Gemfile.lock $HOME/
+RUN cat Gemfile.lock | grep -A1 "BUNDLED WITH" | tail -n1 | awk '{print $1}' > BUNDLER_VERSION
 RUN set -ex && \
-  gem install bundler -v 2.1.4 && \
+  gem install bundler -v $(cat BUNDLER_VERSION) && \
   bundle install --no-cache --deployment --without='development test' && \
   rm -rf vendor/bundle/ruby/*/cache .bundle/cache && \
   apk del make gcc libc-dev