Dockerfiles are fundamental tools for developers working with Docker, serving as a blueprint for creating Docker images. Learn about new Dockerfile (v1.7.0) capabilities and how you can leverage them in your projects to further optimize your Docker workflows.
Wow, the COPY directive got a lot more powerful. I’ve been waiting for the --parent flag for years, while the --exclude argument is also a nice touch. Didn’t know of the /./ pivot point before, but that’s handy.
Before this, I’ve just been using a intermediary leaf stage within a multi-stage build process to copy the build context and filter the dependency lock files of the entire super project into a matching parent structure that I could then deterministically copy from.
Wow, the
COPYdirective got a lot more powerful. I’ve been waiting for the--parentflag for years, while the--excludeargument is also a nice touch. Didn’t know of the/./pivot point before, but that’s handy.Before this, I’ve just been using a intermediary leaf stage within a multi-stage build process to copy the build context and filter the dependency lock files of the entire super project into a matching parent structure that I could then deterministically copy from.