Doc updates for Docker/devcontainers/codespace (#30582)

.devcontainer/Dockerfile

@@ -1,20 +1,17 @@
 # For details, see https://github.com/devcontainers/images/tree/main/src/ruby
 FROM mcr.microsoft.com/devcontainers/ruby:1-3.3-bookworm
 
-# Install Rails
-# RUN gem install rails webdrivers
-
+# Update existing node version, keep in sync with .nvmrc
 ARG NODE_VERSION="20"
 RUN . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1
 
-# [Optional] Uncomment this section to install additional OS packages.
-RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
-    && apt-get -y install --no-install-recommends libicu-dev libidn11-dev ffmpeg imagemagick libvips42 libpam-dev
+# Install additional OS packages
+RUN apt-get update && \
+    export DEBIAN_FRONTEND=noninteractive && \
+    apt-get -y install --no-install-recommends libicu-dev libidn11-dev ffmpeg imagemagick libvips42 libpam-dev
 
-# [Optional] Uncomment this line to install additional gems.
-RUN gem install foreman
-
-# [Optional] Uncomment this line to install global node packages.
+# Install global node packages
 RUN . /usr/local/share/nvm/nvm.sh && corepack enable 2>&1
 
+# Move welcome message to where VS Code expects it
 COPY welcome-message.txt /usr/local/etc/vscode-dev-containers/first-run-notice.txt

.devcontainer/codespaces/devcontainer.json

@@ -1,6 +1,6 @@
 {
   "name": "Mastodon on GitHub Codespaces",
-  "dockerComposeFile": "../docker-compose.yml",
+  "dockerComposeFile": "../compose.yaml",
   "service": "app",
   "workspaceFolder": "/workspaces/${localWorkspaceFolderBasename}",
 

.devcontainer/devcontainer.json

@@ -1,6 +1,6 @@
 {
   "name": "Mastodon on local machine",
-  "dockerComposeFile": "docker-compose.yml",
+  "dockerComposeFile": "compose.yaml",
   "service": "app",
   "workspaceFolder": "/workspaces/${localWorkspaceFolderBasename}",