Dockerfile

# syntax=docker/dockerfile:1

ARG NODE_VERSION=18.14.2

################################################################################
# Set the base image
FROM node:${NODE_VERSION}-alpine AS base
# Set the working directory
WORKDIR /usr/src/app

################################################################################
# Create a stage for installing dependecies
FROM base as dependencies
# Copy the package.json and package-lock.json
COPY package*.json ./
# Install dependencies
RUN npm install

################################################################################
# Create a stage for running the application in development mode
FROM dependencies as development
# Copy the source code
COPY . .
# Expose the port
EXPOSE 3000
# Run the application
CMD [ "npm", "run", "dev" ]

################################################################################
# Create a stage for building the application
FROM dependencies as build
# Copy the source code
COPY . .
# Build the application
RUN npm run build
# Remove extraneous packages
RUN npm prune

################################################################################
# Create a stage for running the application in production mode
FROM base AS production
# Copy the built application
COPY --from=build /usr/src/app/.output /usr/src/app/.output
# Run the application
CMD [ "node", ".output/server/index.mjs" ]