Reference implementation to showcase connecting to Ollama service on Windows host from Docker container

Dockerfile.ollama.claude

FROM node:20-slim

# 1. Install essential system tools (curl for testing, git for Claude)
RUN apt-get update && apt-get install -y --no-install-recommends \
    bash curl git vim sudo ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# 2. Install Claude Code globally via npm
# Using npm here ensures a non-interactive, reliable build.
# Warning: Installing CC via npm is bloat. Should install natively via bash script for lean installation.
RUN npm install -g @anthropic-ai/claude-code@2.1.19

# 3. Environment Configuration for Ollama
# ANTHROPIC_BASE_URL and ANTHROPIC_AUTH_TOKEN are the mandatory environment variables to be set to get CC working
ENV ANTHROPIC_BASE_URL="http://host.docker.internal:11434/v1" \
    ANTHROPIC_AUTH_TOKEN="ollama" \
    ANTHROPIC_API_KEY="sk-no-key-required" \
    TERM=xterm-256color

WORKDIR /workspace

# 4. Create a non-root user for security
# Warning: Better to re-use existing user with USER_ID=1000
RUN useradd -m developer && chown -R developer /workspace
USER developer

# Set the default command to bash so you can run your curl test first
ENTRYPOINT ["bash"]