# fpm depends on dotenv, but version 3.0 of that gem dropped support for
# Ruby 2.7, so we need to specifically install an older version.
RUN echo "gem: --no-document" >> ~/.gemrc && \
- gem install bundler --version 2.2.19 && \
+ gem install --conservative --version '~> 2.4.0' bundler && \
gem install dotenv --version '~> 2.8' && \
gem install fpm --version 1.15.1 && \
bundle config --global jobs $(let a=$(grep -c processor /proc/cpuinfo )-1; echo $a)