I am pleased to announce the immediate availability of Ruby on Rails 4.2 on CentOS Linux 7 x86_64, delivered via a Software Collection (SCL) built by the CentOS SCLo Special Interest Group (https://wiki.centos.org/SpecialInterestGroup/SCLo). QuickStart ---------- You can get started in three easy steps: $ sudo yum install centos-release-scl $ sudo yum install sclo-ror42 $ scl enable sclo-ror42 bash At this point you can use Ruby on Rails in the usual way with the `rails` command. Examples of commands might be: $ rails new --skip-bundle example $ rails generate model Article 'byebug' and 'webconsole' development dependencies are not supplied, so should be removed from generated Gemfiles. In order to compile assets, uncomment or add the gem 'therubyracer' to the application Gemfile. Add the v8314 SCL to use this supplied gem: $ scl enable sclo-ror42 v8314 bash To deploy an application under Passenger, see the wiki documentation: https://wiki.centos.org/SpecialInterestGroup/SCLo/RubyOnRails About Software Collections -------------------------- Software Collections give you the power to build, install, and use multiple versions of software on the same system, without affecting system-wide installed packages. Each collection is delivered as a group of RPMs, with the grouping being done using the name of the collection as a prefix of all packages that are part of the software collection. The sclo-ror42 collection delivers Ruby on Rails version 4.2.5.1, modelled on previous collections (e.g. rh-ror41) and provides all of Rails with full asset compilation support, plus extras such as jQuery (1.11.2 & 2.1.3). It depends on the rh-ruby22 and v8314 collections. For more on Ruby on Rails, see http://rubyonrails.org/. The SCLo SIG in CentOS ---------------------- The Software Collections SIG group is an open community group co-ordinating the development of the SCL technology, and helping curate a reference set of collections. In addition to the Rails collection released here, we also build and deliver databases, web servers, and language stacks including multiple versions of PostgreSQL, MariaDB, Apache HTTP Server, NodeJS, Ruby, Python and others. Software Collections SIG release was announced at https://lists.centos.org/pipermail/centos-announce/2015-October/021446.html You can learn more about Software Collections concepts at: http://softwarecollections.org You can find information on the SIG at https://wiki.centos.org/SpecialInterestGroup/SCLo ; this includes howto get involved and help with the effort. We meet every second Wednesday at 16:00 UTC in #centos-devel (ref: https://www.centos.org/community/calendar), for an informal open forum open to anyone who might have comments, concerns or wants to get started with SCLs in CentOS.