DevOps Classroom Series – 28/Nov/2020

Docker Compose

• Scenario:
  • Consider your application has the following services
    • frontend
    • backend
    • payment processing
    • order processing
  • When these individual microservices run together they form your application
  • For each service we would have one Dockerfile
  • When you want to run all the containers with one simple interface, this is where docker compose comes into play
  • Using Docker Compose we run multiple docker containers with simple commands.
  • Approach:
    • Create a yaml file where you describe all the services that are supposed to run together
    • Then use simple commands such as docker-compose up
• Installing docker-compose on Linux Refer Here
• Refer Here here for docker compose cheatsheet
• To Create a docker-compose we need to create docker-compose.yaml file. Refer Here for the docker-compose reference
• Refer Here for the docker-compose with volumes

OpenShift

• Openshift is a platform built for running containers. This is maintained by Redhat