Installation

Install from Docker website for Mac

For NodeJS create DockerFile. This will pull in the environment. The smallest seems to be alpine distroof Linux, NodejS needs to be built on top of that.

Create a docker-compose.yml file . This file has ll the configurations that I need for my containers.

Example

I need to run two conatiners

• A node server
• A database server

This is the yml file i took

version: '2'
services:
  app:
    restart: always
    build: .
    ports:
      - 3000:3000
    # command: bash -c 'while !</dev/tcp/db/5432; do sleep 1; done; node index.js'
    links:
      - db
    depends_on:
      - db
    environment:
      - DATABASE_URL=postgres://postgres:password@db:5432/flights
      - REDIS_HOST=redis

    volumes:
       - .:/home/nodejs/app
       - /home/nodejs/app/node_modules
  db:
    image: postgres:9.6.2-alpine
    volumes:
      - ./postgresdata=/var/lib/postgresql/data
    environment:
      - POSTGRES_USER=postgres
      - POSTGRES_PASSWORD=password
      - POSTGRES_DB=flights
  adminer:
    image: adminer
    restart: always
    ports:
      - 8080:8080
  redis: 
    image: redis:alpine

With this seetings I am basically running a node server with memory limits and limited cpu and a Cassandra DB

Docker + Postgres +Node

Connection Problems Connection Issues

With this the Docker containers are up and running for NodeJS + PostGres + redis Now we need to make it availabe to network…

The node server can be made available by opening port 80 with nginx and mapping NodeJS as the upstream server.

Reference

Oh Pupeteer + NodeJS + Ubuntu

Had some problems today running pupeteer in docker image alpine for Node.

Found this Pupeteer

#####Docker eating up Disk Space

Check with

docker sudo df

and clean with

docker system prune

Copy Docker Images From Development to Production(Offline)

If we want to copy our images that we have created using docker-compose.yml file into a remote system like production in offline mode. Then:

• docker images
• docker save -o <image/s name>
• scp .tar to remote system
• In remote system docker load -i <path to image tar file>