FROM centos:{DISTRO_VERSION} RUN yum install -q -y \ https://yum.postgresql.org/11/redhat/rhel-{DISTRO_VERSION}-x86_64/pgdg-redhat-repo-latest.noarch.rpm \ epel-release # Install basic deps RUN yum install -q -y \ bash \ bc \ cups \ curl \ curl \ epel-release \ fontconfig \ git \ git-core \ graphviz \ jq \ less \ nc \ openssl \ postgresql11-11.7 \ postgresql11-devel-11.7 \ postgresql11-libs-11.7 \ ImageMagick ImageMagick-devel \ vim \ wget \ zip unzip \ xorg-x11-fonts-75dpi \ xorg-x11-fonts-Type1 && \ yum clean all # Install specific Ruby version via RVM and set it as default RUN curl -sSL https://rvm.io/mpapis.asc | gpg --import - && \ curl -sSL https://rvm.io/pkuczynski.asc | gpg --import - && \ curl -sSL https://get.rvm.io | bash -s stable && \ bash -lc 'rvm install {RUBY_VERSION};rvm alias create default {RUBY_VERSION}' && \ ruby --version; \ gem --version