Experiments with Docker

What i am showing today

• Skeleton app for all services that we plan to develop
• Development setup using docker
• Using cloud for development and QA

Application used in this Demo

• Redis for session data and caching

• Postgres for transactions data

• Possibily Mongodb for configuration data

• Item Service

Development - Option 1

• All Dependent Services runs on boot2docker container or cloud
• Order Service alone is in developer laptop
• Can leverage eclipse build and debugging capabilities
• Can leverage spring-boot development Support

Development - Option 2

• All Services including item services run inside container
• Very close to production setup
• Remote debugging possible
• Remote classloading support by Spring boot dev tools not supported

Running application tests on cloud (digital ocean)

Docker Advantages

• Development environment uses the same stack as production
• All orchestration done by docker-compose. Bring up everything using docker-compose up
• Scaling services is very simple.. Just give a number and docker-compose will create containers as required.
• Run tests/apps on cloud without much setup.
• QA can setup the entire application using a single click. Every QA engineer has their own env either in their laptop or on digitalocean (aws)
• All data created in stateful containers (postgres, redis, mongo) can be exported and shared. Makes it really easy to reproduce issues for developers..
• .....
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