We have certainly come a long way since the 12-Factors declared that backing services should be attachable or connectable and make no distinction between local and remote resources. Famously a great meme sprung up sometime later declaring that stateless apps were a hoax. Stateful apps are of course the most popular, and arguably the most valuable to one’s business, so I always find it odd when people talk about the power of containers without mentioning the footnote that stateful apps are difficult to operationalize. After all, the eco-system supporting these apps is currently splintered between Docker, Mesos and Kubernetes. Now, with the advent of the Container Storage Interface (CSI), we as a community are on the verge of solving this discrepancy.
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