Fix bug where vscode extensions are not installing

qhub/template/image/Dockerfile.jupyterlab

@@ -44,6 +44,10 @@ RUN \
     fi ; \
     /opt/scripts/install-conda-environment.sh "${ENV_FILE}" 'true'
 
+# ========== code-server install ============
+ENV PATH=/opt/code-server/bin:/opt/code-server/bin/code-server:${PATH}
+COPY scripts/install-code-server.sh /opt/scripts/install-code-server.sh
+
 COPY jupyterlab /opt/jupyterlab
 RUN /opt/jupyterlab/postBuild
 

qhub/template/image/jupyterlab/environment.yaml

@@ -19,7 +19,7 @@ dependencies:
  - retrolab
 
  # jupyterlab extensions
-#  - dask_labextension >=5.0.0
+ - dask_labextension == 5.3.0
  - jupyterlab-git >=0.30.0
  - sidecar >=0.5.0
  - jupyter-videochat >=0.5.0
@@ -47,11 +47,3 @@ dependencies:
  - black
  - isort
  - importnb
-
- # vscode
- - code-server >= 3.2
-
- - pip:
-     # vscode jupyterlab launcher
-     - git+https://github.com/betatim/vscode-binder
-     - git+https://github.com/dask/dask-labextension.git@fc8de03447778e0605d0abafa3d3135f9e49e0d6

qhub/template/image/jupyterlab/postBuild

@@ -5,6 +5,9 @@ set -x
 # install classic notebook extensions
 jupyter nbextension enable --py widgetsnbextension --sys-prefix
 
+# install code-server extension
+sh /opt/scripts/install-code-server.sh
+
 # if DEFAULT_ENV is unset ${DEFAULT_ENV+x} expands to nothing otherwise
 # it substitutes the string x. This allows us to check if the variable
 # is set without triggering an unbound variable error

qhub/template/image/scripts/install-code-server.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -xe
+# DEFAULT_PREFIX="${1}"; shift # path to environment yaml or lock file
+
+mkdir -p /opt/code-server
+cd /opt/code-server
+
+# Fetch the snapshot of https://code-server.dev/install.sh as of the time of writing
+wget --quiet https://raw.githubusercontent.com/coder/code-server/326a1d1862872955cec062030df2bd103799a1eb/install.sh
+expected_sum=ed18563871beb535130019b6c5b62206cc4a60c8bf4256aae96ce737951fc253
+
+if [[ ! $(sha256sum install.sh) == "${expected_sum}  install.sh" ]];then
+    echo Unexpected hash from code-server install script
+    exit 1
+fi
+
+sh ./install.sh --method standalone --prefix /opt/code-server
+
+cat <<'EOF' >opt/code-server/bin/code-server
+#!/bin/bash
+node opt/code-server/lib/code-server-4.5.0/out/node/entry.js $*
+EOF
+
+# Install the VS code proxy
+pip install git+https://github.com/betatim/vscode-binder