Cleanup large unused files

Reduces the alpine image from 46M to 41M.

yajl parts can be removed if/when
brianmario/yajl-ruby#228 is merged and
released.

Signed-off-by: Orgad Shaneh <orgad.shaneh@audiocodes.com>

Dockerfile.template.erb

@@ -146,7 +146,14 @@ RUN apt-get update \
                   '*-dev' \
  && rm -rf /var/lib/apt/lists/* \
 <% end %>
- && rm -rf /tmp/* /var/tmp/* /usr/lib/ruby/gems/*/cache/*.gem /usr/lib/ruby/gems/3.*/gems/fluentd-*/test
+&& rm -rf /tmp/* /var/tmp/* \
+<% if is_alpine %>
+   /usr/lib/ruby/gems/*/cache/*.gem \
+   && find /usr/lib/ruby/gems -type d -name test -or -name ext -or -name spec -or -name benchmark | xargs -r rm -rf
+<% else %>
+   /usr/local/lib/ruby/gems/3.*/cache/*.gem \
+   && find /usr/local/bundle/gems -type d -name test -or -name ext -or -name spec -or -name benchmark | xargs -r rm -rf
+<% end %>
 
 <% if is_alpine %>
 RUN addgroup -S fluent && adduser -S -G fluent fluent \

v1.17/alpine/Dockerfile

@@ -26,7 +26,9 @@ RUN apk update \
  && gem install bigdecimal -v 1.4.4 \
  && apk del .build-deps \
  && rm -rf /var/cache/apk/* \
- && rm -rf /tmp/* /var/tmp/* /usr/lib/ruby/gems/*/cache/*.gem /usr/lib/ruby/gems/3.*/gems/fluentd-*/test
+&& rm -rf /tmp/* /var/tmp/* \
+   /usr/lib/ruby/gems/*/cache/*.gem \
+   && find /usr/lib/ruby/gems -type d -name test -or -name ext -or -name spec -or -name benchmark | xargs -r rm -rf
 
 RUN addgroup -S fluent && adduser -S -G fluent fluent \
     # for log storage (maybe shared with host)

v1.17/arm64/debian/Dockerfile

@@ -55,7 +55,9 @@ RUN apt-get update \
                   $buildDeps \
                   '*-dev' \
  && rm -rf /var/lib/apt/lists/* \
- && rm -rf /tmp/* /var/tmp/* /usr/lib/ruby/gems/*/cache/*.gem /usr/lib/ruby/gems/3.*/gems/fluentd-*/test
+&& rm -rf /tmp/* /var/tmp/* \
+   /usr/local/lib/ruby/gems/3.*/cache/*.gem \
+   && find /usr/local/bundle/gems -type d -name test -or -name ext -or -name spec -or -name benchmark | xargs -r rm -rf
 
 RUN groupadd -r fluent && useradd -r -g fluent fluent \
     # for log storage (maybe shared with host)

v1.17/armhf/debian/Dockerfile

@@ -55,7 +55,9 @@ RUN apt-get update \
                   $buildDeps \
                   '*-dev' \
  && rm -rf /var/lib/apt/lists/* \
- && rm -rf /tmp/* /var/tmp/* /usr/lib/ruby/gems/*/cache/*.gem /usr/lib/ruby/gems/3.*/gems/fluentd-*/test
+&& rm -rf /tmp/* /var/tmp/* \
+   /usr/local/lib/ruby/gems/3.*/cache/*.gem \
+   && find /usr/local/bundle/gems -type d -name test -or -name ext -or -name spec -or -name benchmark | xargs -r rm -rf
 
 RUN groupadd -r fluent && useradd -r -g fluent fluent \
     # for log storage (maybe shared with host)

v1.17/debian/Dockerfile

@@ -44,7 +44,9 @@ RUN apt-get update \
                   $buildDeps \
                   '*-dev' \
  && rm -rf /var/lib/apt/lists/* \
- && rm -rf /tmp/* /var/tmp/* /usr/lib/ruby/gems/*/cache/*.gem /usr/lib/ruby/gems/3.*/gems/fluentd-*/test
+&& rm -rf /tmp/* /var/tmp/* \
+   /usr/local/lib/ruby/gems/3.*/cache/*.gem \
+   && find /usr/local/bundle/gems -type d -name test -or -name ext -or -name spec -or -name benchmark | xargs -r rm -rf
 
 RUN groupadd -r fluent && useradd -r -g fluent fluent \
     # for log storage (maybe shared with host)