Complicated fibonacci server

From Grider's Docker & Kubernetes course on Udemy.

Video 139 Postgres Database Required Fixes and Updates

updated 6-12-2020

Due to a recent update in the official Postgres image hosted on the DockerHub we need to make a change to our environment variables.

Add the following to your docker-compose.yml file in the postgres service:

postgres:
  image: 'postgres:latest'
  environment:
    - POSTGRES_PASSWORD=postgres_password

docker-compose down && docker-compose up --build

Please note, all of these changes are reflected in the downloadable checkpoint zip files.

Video 141 Required Client Service Update and Worker Environment Variables

In the next lecture, we will be adding a client and worker service. There are two required configuration updates that need to be made:

1. When adding the "Client" service, be sure to include the stdin_open: true configuration:

client:
  stdin_open: true
  build:
    dockerfile: Dockerfile.dev
    context: ./client
  volumes:
    - /app/node_modules
    - ./client:/app

Otherwise, you will get a "React App exited with Code 0" error in your terminal when we attempt to start up the application.

2. When adding the "Worker" service, include the Redis host and port as environment variables:

worker:
  build:
    dockerfile: Dockerfile.dev
    context: ./worker
  volumes:
    - /app/node_modules
    - ./worker:/app
  environment:
    - REDIS_HOST=redis
    - REDIS_PORT=6379

Otherwise, you will get a "Calculated Nothing Yet" error message.