Learn Docker by building a Microservice!
This is a companion project to my article on 'Learn Docker by building a Microservice' demonstrating key concepts of Docker using a Node.js microservice as an example.
You must have Docker installed for this code to work! Check the Installation Guide if you haven't got it installed.
To start or stop the test database, build the test-database image and run it:
cd ./test-database docker build -t test-database . docker run -it -p 3306:3306 test-database
Some commands for working with the test server:
cd ./users-service npm install # setup everything npm test # unit test - no need for a test database running npm start # run the server - you must have a test database running npm run debug # run the server in debug mode, opens a browser with the inspector npm run lint # check to see if the code is beautiful
You can also run the test server in its own container:
docker build -t users-service . docker run -it -p 8123:8123 --link db:db -e DATABASE_HOST=DB users-service
To test the entire stack, run:
docker-compose build docker-compose up -d sleep 10 # give the database server enough time to start! cd integration-test && npm install && npm start && cd .. docker-compose down