Use Node base image with Bun for package management

The oven/bun image has Node v24 which breaks Docusaurus SSR.
Use node:18 as base and install Bun for faster package installs
while keeping Node.js runtime for Docusaurus compatibility.

Author: claude

.gitlab-ci.yml

@@ -24,13 +24,17 @@ variables:
 # Validate RSS/Atom feeds before building and deploying
 validate_feeds:
   stage: validate
-  image: oven/bun:1.3
+  image: node:18
+  variables:
+    BUN_INSTALL: "$HOME/.bun"
+    PATH: "$HOME/.bun/bin:$PATH"
   before_script:
-    # Install xmllint for XML validation
-    - apt-get update && apt-get install -y libxml2-utils jq
-    - bun install --frozen-lockfile
+    # Install xmllint for XML validation and bun
+    - apt-get update && apt-get install -y libxml2-utils jq unzip
+    - curl -fsSL https://bun.sh/install | bash
+    - $HOME/.bun/bin/bun install --frozen-lockfile
   script:
-    - bash .ci/validate-feeds.sh
+    - export PATH="$HOME/.bun/bin:$PATH" && bash .ci/validate-feeds.sh
   artifacts:
     when: on_failure
     paths:

Dockerfile

@@ -1,4 +1,4 @@
-FROM oven/bun:1.3
+FROM node:18.20
 
 ARG ARG_REACT_APP_API_SERVER
 ENV REACT_APP_API_SERVER=$ARG_REACT_APP_API_SERVER
@@ -24,6 +24,11 @@ ENV UMAMI_WEBSITE_ID=$ARG_UMAMI_WEBSITE_ID
 ARG ARG_UMAMI_SCRIPT_URL
 ENV UMAMI_SCRIPT_URL=$ARG_UMAMI_SCRIPT_URL
 
+# Install bun
+RUN curl -fsSL https://bun.sh/install | bash
+ENV BUN_INSTALL="/root/.bun"
+ENV PATH="$BUN_INSTALL/bin:$PATH"
+
 WORKDIR /docs
 
 COPY package.json ./