fix: keep dynamically linked files in slim images

[SimenB]

Should be merged after #1197. I kept them separate as I don't know how to test that this works for arm.

Fixes #1195

[tianon]

I tested this on arm32v7, and found I had to add a couple things before it worked -- I had to add libatomic1 to the list of things explicitly installed in the node layer, then I had to add the savedAptMark behavior we'd discussed previously in the yarn layer, ala:

RUN set -ex \
  && savedAptMark="$(apt-mark showmanual)" \
  && apt-get update && apt-get install -y ca-certificates curl wget gnupg dirmngr --no-install-recommends \
# ...
  && apt-mark auto '.*' > /dev/null \
  && { [ -z "$savedAptMark" ] || apt-mark manual $savedAptMark > /dev/null; } \
  && apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false \
  # smoke test
  && yarn --version

[Kosta-Github]

can this be somehow resolved, since right now both 13.x and 12.x images are not working:

$ docker run --rm node:13-slim --version
node: error while loading shared libraries: libatomic.so.1: cannot open shared object file: No such file or directory

and

$ docker run --rm node:12-slim --version
node: error while loading shared libraries: libatomic.so.1: cannot open shared object file: No such file or directory

The last working one seems to be 12.15-slim:

 $ docker run --rm node:12.15-slim --version
v12.15.0

[SimenB]

I've rebased this now.

@tianon thanks for testing!

I added what I think is correct as a second commit now. Does that look right? Could you test again?

[tianon]

Tested 13/buster-slim on arm32v7 and it was successful! 👍

[SimenB]

Wonderful, thanks for checking!

@nodejs/docker PTAL 🙂

[nschonni]

Looks like the Travis job failed on the deploy if someone can try and reset it https://travis-ci.com/nodejs/docker-node/jobs/288915013

[SimenB]

Yeah, failed when gh had issues earlier. I was unable to open a manual pr as well. I'll restart it 🙂

[nodejs-github-bot]

Created PR to the official-images repo (docker-library/official-images#7493). See https://github.com/docker-library/faq#an-images-source-changed-in-git-now-what if you are wondering when it will be available on the Docker Hub.