Web application deployment using docker, docker-compose and manage multiple environment like production, stating etc.

• Open docker-compose.yml file and update the service and images you will be using for each service as per instruction in the compose file.

• Make a copy of .env from .env.sample
• Modify .env file and set corresponding values related to database and application specific secrect values.

Run database service service defined in docker-compose.yml file

$ docker-compose up -d db
$ docker-compose exec db bash
$ mysql -uroot -p

Note:

• Create application specific database
• Create application specific user and grant previlidges to the database

Run appication service defined in the docker-compose.yml file

$ docker-compose up -d app
$ docker-compose exec app bash
$ bundle exec rake db:migrate
$ bundle exec rake db:seed
$ exit

• Modify nginx.conf file which is located under nginx/nginx.conf file. You can find the instructions in the config file where you might need to change as per your application setup.
• For ssl configuration enable nginx/nginx.ssl.conf file in the docker-compose file under web service and do the necessary changes like above.

Finally run nginx web server defined in docker-compose.yml file

$ docker-compose up -d web