base-notebook: stop installing nodejs from conda-forge

nodejs was a conda dependency of jupyterhub, but by installing
jupyterhub-base we no longer need it and could opt to remove it.

By doing this, building base-notebook led to a reported size reduction
from 974MB to 828MB, which is a 146MB / 15% size reduction.

CHANGELOG.md

@@ -3,6 +3,14 @@
 This changelog only contains breaking and/or significant changes manually introduced to this repository (using Pull Requests).
 All image manifests can be found in [the wiki](https://github.com/jupyter/docker-stacks/wiki).
 
+## 2024-11-??
+
+Affected: all images except `docker-stacks-foundation`.
+
+- **Breaking:** base-notebook: stop installing nodejs from conda-forge ([#2172](https://github.com/jupyter/docker-stacks/pull/2172)).
+
+  Reason: It isn't a direct dependency on anything in the images any more, and increased the image size with ~150MB.
+
 ## 2024-11-06
 
 Affected: all images except `docker-stacks-foundation`.

docs/using/selecting.md

@@ -55,8 +55,6 @@ It contains:
 - Everything in `jupyter/docker-stacks-foundation`
 - Minimally functional Server (e.g., no LaTeX support for saving notebooks as PDFs)
 - `notebook`, `jupyterhub-base`, and `jupyterlab` packages
-  Note: we're also installing `nodejs` as it has historically been installed indirectly as a dependency of `jupyterhub` package, which was used before.
-  See more at: <https://github.com/jupyter/docker-stacks/pull/2171>
 - A `start-notebook.py` script as the default command
 - A `start-singleuser.py` script useful for launching containers in JupyterHub
 - Options for a self-signed HTTPS certificate

images/base-notebook/Dockerfile

@@ -42,20 +42,13 @@ RUN mamba install --yes \
     'jupyterhub-base' \
     'jupyterlab' \
     'nbclassic' \
-    # nodejs has historically been installed indirectly as a dependency.
-    # When it was no longer getting installed indirectly,
-    # we started installing it explicitly to avoid introducing a breaking change
-    # for users building on top of these images.
-    # See: https://github.com/jupyter/docker-stacks/pull/2171
-    'nodejs' \
     # Sometimes, when the new version of `jupyterlab` is released, latest `notebook` might not support it for some time
     # Old versions of `notebook` (<v7) didn't have a restriction on the `jupyterlab` version, and old `notebook` is getting installed
     # That's why we have to pin the minimum notebook version
     # More info: https://github.com/jupyter/docker-stacks/pull/2167
     'notebook>=7.2.2' && \
     jupyter server --generate-config && \
     mamba clean --all -f -y && \
-    npm cache clean --force && \
     jupyter lab clean && \
     rm -rf "/home/${NB_USER}/.cache/yarn" && \
     fix-permissions "${CONDA_DIR}" && \

tests/docker-stacks-foundation/test_packages.py

@@ -77,7 +77,6 @@
     "jupyterhub-base",
     "jupyterlab-git",
     "mamba[version='<2.0.0']",
-    "nodejs",
     "notebook[version='>",
     "openssl",
     "pandas[version='>",