You still have to write code, define your database schema and declare config files to specify how containers should be orchestrated but soon open source developers will start creating frameworks/boilerplates which capture some of these requirements and which can automatically run and scale on Kubernetes/Swarm/Mesos and this will greatly speed up application development and deployment.

Right now, we think of frameworks as being components (part of) larger software systems - But in the future, frameworks will provide the foundations for entire software systems - They will be be responsible for declaring their own network topologies and resource requirements and they will be capable of scaling automatically to any number of machines.

Developers will extend and customize the framework with their own logic but the framework itself will handle all the difficult stuff related to its own operations.