lock rubygems version for Docker image

jmartin-tech · jmartin-tech · commit f1db8caa7936 · 2019-12-16T10:05:07.000-06:00
Latest rubygems release for 3.1.0 vendors bundler 2.1.0 creating
compatibilty issues.  Lock for now until all relates issues can be
addressed.
diff --git a/Dockerfile b/Dockerfile
@@ -27,8 +27,8 @@ RUN apk add --no-cache \
       zlib-dev \
       ncurses-dev \
       git \
-    && echo "gem: --no-ri --no-rdoc" > /etc/gemrc \
-    && gem update --system \
+    && echo "gem: --no-document" > /etc/gemrc \
+    && gem update --system 3.0.6 \
     && bundle install --clean --no-cache --system $BUNDLER_ARGS \
     # temp fix for https://github.com/bundler/bundler/issues/6680
     && rm -rf /usr/local/bundle/cache \
