Dockerfile.dev

# Dockerfile.dev
#
# Development image only — NOT for production.
# Uses ts-node-dev for live TypeScript reload on file changes.

FROM node:20-alpine

# Install curl for the healthcheck in docker-compose
RUN apk add --no-cache curl

WORKDIR /app

# Copy manifests first to leverage layer caching
COPY package*.json ./

# Install all deps including devDependencies (needed for ts-node-dev)
RUN npm ci

# Copy the rest of the source (overridden by the bind mount at runtime)
COPY . .

EXPOSE 3000

# ts-node-dev watches for file changes and restarts automatically.
# --respawn      — restart on crash
# --transpile-only — skip type checking for faster restarts
# --ignore-watch node_modules — don't watch node_modules
CMD ["npx", "ts-node-dev", "--respawn", "--transpile-only", "--ignore-watch", "node_modules", "src/index.ts"]