Yeah, those are layers in the image. That image [1] (727MB) is built on buildpack-deps [2] (695MB) which is itself built on the base jessie (154MB).
It would be pretty straightforward to adapt those Dockerfiles to create an image which includes only the dependencies for building node. It would end up looking a lot like 'node:slim' [3] (288MB).
Ideally, Docker will eventually have the functionality to more easily strip out transient requirements like build dependencies from the final images.
It would be pretty straightforward to adapt those Dockerfiles to create an image which includes only the dependencies for building node. It would end up looking a lot like 'node:slim' [3] (288MB).
Ideally, Docker will eventually have the functionality to more easily strip out transient requirements like build dependencies from the final images.
1: https://github.com/docker-library/node/blob/013858ac35afb9ca...
2: https://github.com/docker-library/buildpack-deps/blob/a201b1...
3: https://github.com/docker-library/node/blob/013858ac35afb9ca...