如何 dockerize 将要定制的 Web 应用程序？

Question

We ship our web application as WAR file with source code (Java, JSP, Spring config files). Our customers customize our application by changing those files. A Docker image is supposed to be immutable. Is it possible to dockerize our application?

Answer 1

You can deliver three elements:

• one archive representing your sources
• one representing your app
• one representing a Dockerfiles able to build the first image from the sources, with the sources in its context, able to rebuild the full image.

For a client, dockerize an application after modifying its sources means rebuilding a docker image.

The interest of docker here is that the client doesn't have to know how to build (or what he/she needs to build) your app: everything is configured in the Dockerfile.