# Dockerfile for the LangGraph JS agent.
# Mirrors the user experience: npm install + langgraph-cli dev.
FROM node:22-alpine

WORKDIR /app

# Copy agent package files
COPY package.json ./
COPY langgraph.json ./
COPY tsconfig.json ./
COPY src/ ./src/

# Install dependencies
RUN npm install

EXPOSE 8123

CMD ["npx", "@langchain/langgraph-cli@1.2.1", "dev", "--host", "0.0.0.0", "--port", "8123", "--no-browser"]