/docker-compose-talk

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Docker Compose talk

Building large enterprise applications with microservices

The client is using microservices

Every team has responsibility for their own services The number of services increases rapidly

Integration test hell

  • Large number of services increases the need for doing integration testing.
  • Its hard to keep track of all the services.
  • Much time is spent just starting the services.
  • Hard to keep track of all the versions.
  • You should mock, but that mocking takes a lot of time.

Run every service in a container

  • Docker comes to the rescue
  • Create docker images from each service
  • Upload the image to a central repository: Google Cloud, DockerHub etc...

Can we do everything in 1 command?

  • docker-compose
  • Start all your services in one command: docker-compose up -d

Docker Compose comes to the rescue

  • docker-compose.yml
version: '2'
  services:
    api1: 
      image: <hub-account>/<appname>:<version>
      ...
    api2: 
      image: <hub-account>/<appname>:<version> 
      ...
    db1: 
      image: <hub-account>/<appname>:<version>
      ...
    db2: 
      image: <hub-account>/<appname>:<version>
      ...

  docker-compose up -d
  docker-compose ps
  docker-compose down

Demo-time!