In different texts, I came across a common theme that covered DevOps in detail and each pointed out to The 3 principals underpinning the devops practice [http://itrevolution.com/the-three-ways-principles-underpinning-devops/]
Arguably, DevOps is about making that process of build/release transparent and automated to make this process smoother, but just like agile, it is more than just tools (ant/maven/
In monolithic softwares like SAP Hybris, directly building docker images are a challenge at the moment as only the datahub, essentially a tomcat web application can easily be dockerized. But it remains to be seen whether we will have more microservice/YAAS based approach in the post 6.3 releases of Hybris.
my two cents