Preparar imagen de Docker - Node App

build-instructions-run.md

Build

docker-compose -f docker-compose.prod.yml --env-file .env.prod up --build

Run

docker-compose -f docker-compose.prod.yml --env-file .env.prod up

Nota

Por defecto, docker-compose usa el archivo .env, por lo que si tienen el archivo .env y lo configuran con sus variables de entorno de producción, bastaría con

docker-compose -f docker-compose.prod.yml up --build

Cambiar nombre

docker tag <nombre app> <usuario docker hub>/<nombre repositorio>

Ingresar a Docker Hub

docker login

Subir imagen

docker push <usuario docker hub>/<nombre repositorio>

docker-compose.prod.yml

version: '3'


services: 
  db:
    image: postgres:14.4
    restart: always
    ports:
      - "${DB_PORT}:${DB_PORT}"
    environment:
      POSTGRES_PASSWORD: ${DB_PASSWORD}
      POSTGRES_DB: ${DB_NAME}
    container_name: anylistDB
    volumes:
      - ./postgres:/var/lib/postgresql/data

  anylistapp:
    depends_on:
      - db
    build: 
      context: .
      dockerfile: Dockerfile
    image: nest-graphql
    container_name: AnylistApp
    restart: always # reiniciar el contenedor si se detiene
    ports:
      - "${PORT}:${PORT}"

    environment:
      DB_PASSWORD: ${DB_PASSWORD}
      DB_NAME: ${DB_NAME}
      DB_HOST: ${DB_HOST}
      DB_PORT: ${DB_PORT}
      DB_USERNAME: ${DB_USERNAME}
      JWT_SECRET: ${JWT_SECRET}
      PORT: ${PORT}

Dockerfile

# Install dependencies only when needed
FROM node:18-alpine3.15 AS deps
# Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
RUN apk add --no-cache libc6-compat
WORKDIR /app

COPY package.json yarn.lock ./
RUN yarn install --frozen-lockfile


# Build the app with cache dependencies
FROM node:18-alpine3.15 AS builder
WORKDIR /app
COPY --from=deps /app/node_modules ./node_modules
COPY . .
RUN yarn build


# Production image, copy all the files and run next
FROM node:18-alpine3.15 AS runner

# Set working directory
WORKDIR /usr/src/app

COPY package.json yarn.lock ./
RUN yarn install --prod
COPY --from=builder /app/dist ./dist

CMD [ "node","dist/main" ]

Excelente Fernando! Gracias por el curso