feat: user node user for all the operations instead of root

Dockerfile

@@ -1,14 +1,18 @@
 FROM node:22-alpine
 
-WORKDIR /app
+ENV NPM_CONFIG_PREFIX=/home/node/.npm-global
+ENV PATH=$NPM_CONFIG_PREFIX/bin:$PATH
+ENV NODE_ENV=production
+ENV CLAUDE_CONFIG_DIR=/home/node/.claude
+
+USER node
+
+WORKDIR /home/node/app
+
 RUN npm install -g @anthropic-ai/claude-code
 
-RUN apk add --no-cache bash
-
-ENV NODE_ENV=production
-ENV CLAUDE_CONFIG_DIR=/root/.claude
-
-# Ensure config directory exists
 RUN mkdir -p $CLAUDE_CONFIG_DIR
 
-ENTRYPOINT ["/bin/bash", "-c", "claude; exec /bin/bash"]
+# Since we destroy the container after exiting, claude code never gets updated. 
+# Updating at the start making sure its up to date.
+ENTRYPOINT ["/bin/sh", "-c", "npm update -g @anthropic-ai/claude-code; claude; exec /bin/sh"]

README.md

@@ -1,13 +1,14 @@
 # isolated-claude-code
 
-1. Build the docker image. `docker build -t claude-code `
-2. Run the container `docker run --rm -it -v "$(git rev-parse --show-toplevel 2>/dev/null || pwd)":/app -v "$HOME/.claude":/root/.claude claude-code`
-
-You can also add a shell alias:
+1. Build the docker image. `docker build -t claude-code .`
+2. Run the container:
 
 ```
-alias claude='docker run --rm -it \
-  -v "$(git rev-parse --show-toplevel 2>/dev/null || pwd)":/app \
-  -v "$HOME/.claude":/root/.claude \
-  claude-code'
+docker run --rm -it \
+  --user "$(id -u):$(id -g)" \
+  -v "$(pwd)":/home/node/app \
+  -v "$HOME/.claude":/home/node/.claude \
+  claude-code
 ```
+
+You can add a shell alias to faster access.