Nodejs dockerfile

Basic Docker files with Nodejs applications

Dockerfile

Normal dockerfile for a nodejs applications

dockerfile


FROM node:lts
WORKDIR /usr/src/app
COPY . .
EXPOSE 8080
CMD yarn install && \
    node index.js

Run file

Terminal


docker build -t <your-image-tag> .
 
# e.g.
docker build -t nodeserver .

With postgresql images

docker-compose.yml


version: '3'
 
services:
  nodeserver:
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_DB: dummy_db
      POSTGRES_HOST: db
      NODE_ENV: production
      PORT: 8080
    depends_on:
      - db
    build:
      context: ./
      dockerfile: ./Dockerfile
    image: 'nodeserver:latest'
    ports:
      - '8080:8080'
  db:
    image: postgres:15.1-alpine3.16
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_DB: dummy_db
    ports:
      - '25432:5432'
    volumes:
      - ./pgdata:/var/lib/postgresql/data

With Github Action and Docker Hub

Github repo


.
├──.github
│   └── workflows
│       └── ci.yml
├── backend
│   ├── Dockerfile
│   └── Other stuff...
├── frontend
│   └── Other stuff...
└── docker-compose.yml

The {{ secrets.DOCKERHUB_USERNAME }} and {{ secrets.DOCKERHUB_TOKEN }} shoule be setup in the repo first.

ci.yml


name: docker-build
 
on:
  push:
    branches:
      - "main"
  workflow_dispatch:
 
env:
  DOCKER_CONTAINER_NAME: <your-container-name>       # server-mvc:latest
  DOCKER_REPO_NAME: <your_username>/<your-repo-name> # reemo/server-mvc:latest
 
jobs:
  test-server:
    runs-on: ubuntu-latest
    container: node:lts-alpine
    steps:
      - uses: actions/checkout@v3
      - name: Install npm deps
        working-directory: backend
        run: |
          yarn install
          yarn test
          rm -rf node_modules
      - name: archive built files
        uses: actions/upload-artifact@v3
        with:
          name: server_code
          path: backend
 
  build-server:
    needs: test-server
    runs-on: ubuntu-latest
    container: docker:20.10.21-alpine3.16
    steps:
      - uses: actions/checkout@v3
      - name: restore built files server
        uses: actions/download-artifact@v3
        with:
          name: server_code
          path: backend
      - name: Login to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Do Docker tag and push
        working-directory: backend
        run: |
          docker build -t ${{ env.DOCKER_CONTAINER_NAME }} .
          docker tag ${{ env.DOCKER_CONTAINER_NAME }} ${{ env.DOCKER_REPO_NAME }}
          docker push ${{ env.DOCKER_REPO_NAME }}