Dockerfile for typescript project

Dockerfile

# Use the official lightweight Node.js lts image.
# https://hub.docker.com/_/node
FROM node:lts-alpine AS build

# Create and change to the app directory.
WORKDIR /usr/src/app

# Copy application dependency manifests to the container image.
# A wildcard is used to ensure copying both package.json AND package-lock.json (when available).
# Copying this first prevents re-running npm install on every code change.
COPY package*.json ./

# install deps and dev deps
RUN npm ci

# Copy local code to the container image.
COPY . ./

# compile .ts
RUN npm run build

# slim node_modules
RUN npm ci --production



# runtime stage
FROM node:lts-alpine
# copy the dist and node_modules
COPY --from=build /usr/src/app /usr/src/app

WORKDIR /usr/src/app
# Run the web service on container startup.
CMD [ "npm", "start" ]