Deploying an existing docker image with Deis

We are hoping to resolve this feature request with https://github.com/deis/deis/issues/533.

Ideally we see it as "build your image with - insert CI product here - then run deis push --app=appname to deploy your docker image as an application". After that, it would be treated the same as any other application deployed to deis. Basically, deis push is to pushing docker images as git push is to pushing repositories.

In regards to documentation for deploying an application with a Dockerfile, the docs are at http://docs.deis.io/en/latest/developer/dockerfile/, though this workflow will change back to a more sane deployment workflow once https://github.com/deis/deis/pull/967 is merged. There was some technical debt from v0.8.0, and Dockerfile deployments was one of them.

Deis is designed to build your docker image from your git repo via a buildpack or Dockerfile

The quote is not quite right. Deis is actually designed to build the docker image from its own git repo. When you create a deis application using deis create, Deis will create new git remote name deis, that's why you run git push deis master to build you application.

So, you don't need to push your image to a public repository in order to deploy to Deis. All you need is a Dockerfile. Just put your Dockerfile in the root directory of your application and make sure to commit that file, Deis will build the application using Dockerfile, instead of buildpack.

Hope this will help!