Containerize your Ruby on Rails/PostgreSQL application with RHSCL Docker images

New RHSCL-based Docker images that are now in beta let you easily build your own application containers even without writing any Dockerfiles. Here is an example of a Ruby on Rails application built with the Ruby 2.2 image using the PostgreSQL 9.4 image as a database backend.

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Red Hat Software Collections 2.0 Docker images, Beta release

I’m very happy to announce that Docker images based on collections from Red Hat Software Collections (RHSCL) 2.0 are in beta testing.  The images are available from the Red Hat Container Registry, and we’ve got the set of collections for language, databases and web servers covered – a complete list is below.

If you’ve not tried out the Docker package from RHEL7 Extras, you need to enable the Extras channel, install the docker page, and start the docker service; an extended guide for RHEL Docker is available here.  Once you are set up, pulling the RHSCL Docker images is very simple… for example, you can fetch the Python 3.4 image as follows:

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Repost: Software Collections: Ruby – ScriptScribe

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Scott Merrill does an awesome job describing his experiences with the Red Hat Software Collection for Ruby.  But his code is even cooler – be sure to check it out!  Thanks, Scott!


CoverMyMeds sat in an odd technology intersection when I started here. We were a Red Hat Enterprise Linux customer, greatly valuing the long life of the platform. But we were also a web development shop writing applications primarily in Ruby, a language that evolves quickly. Red Hat Enterprise Linux 6, released at the end of 2010, shipped with Ruby 1.8.

In order to enjoy newer Ruby versions on our RHEL 6 servers, we had been using RVM, the Ruby Version Manager. RVM is a fine solution for managing multiple versions of Ruby. However, I had two major complaints against it on our production servers. First, we had very little need for multiple versions of Ruby on our production servers. Second, RVM compiles the target Ruby version(s) from source, which

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Red Hat Software Collections 2 – now generally available

Excellent news – Red Hat has announced the general availability of Red Hat Software Collections 2.softwarecollections-logo-colorful

You’ll see considerable additions to support multiple language versions. For example, it includes updates to “Python 2.7, continues to support Python 3.3 and also adds Python 3.4 – providing a fully-supported language library and blending developer agility with production stability.”

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Asciidoctor on OpenShift

Asciidoctor encompasses and builds an ecosystem around Asciidoc for writing documentation, and well, writing anything.   If you want to host your own blog, documentation site, book, ect.., Asciidoctor would be an excellent choice.  If you want to do that in OpenShift, that is what I’m going to help you with.

Getting Started

Create a Sinatra ruby gear or on the command line.

rhc app create mydocs sinatra ruby-2.0

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Quick poll: Ruby Developers – do you use Ruby on Rails?

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Because Red Hatters are Rubyists too

If Ruby development is your thing, here at Red Hat we understand why. We make use of Ruby and Ruby on Rails in our products and provide a range of tools to get your Ruby applications up and running. Also, we offer you the opportunity to take your Ruby skills a little further, as we have projects you can get involved in.

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Read on to discover how we use Ruby in OpenShift by Red Hat®, our Platform-as-a-Service (PaaS) portfolio that includes hosted, on-premise, and community offerings. Then see how we support your Ruby coding in Red Hat Enterprise Linux®, and with Red Hat Software Collections, helping you get your applications up and running in the cloud with OpenShift by Red Hat. Finally, you’ll find out how the OpenShift Origin project can use your Ruby skills, so you can contribute to this global, free software project.

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Quick Poll: Which Ruby version(s) are you using?

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