Learning Docker - Second Edition

The ENTRYPOINT instruction

The ENTRYPOINT instruction will help in crafting an image for running an application (entry point) during the complete life cycle of the container, which would have been spun out of the image. When the entry point application is terminated, the container would also be terminated along with the application and vice versa. Thus, the ENTRYPOINT instruction would make the container function like an executable. Functionally, ENTRYPOINT is akin to the CMD instruction, but the major difference between the two is that the entry point application is launched using the ENTRYPOINT instruction, which cannot be overridden using the docker run subcommand arguments. However, these docker run subcommand arguments will be passed ...