deploy.md

Deploy Todo Application

Step 1. Go to todo folder

$ cd todo

Step 2. Verify kontena.yml

$ cat kontena.yml
mongodb:
  image: mongo:3.2
  command: mongod --smallfiles

app:
  image: kontena/todo-example:latest
  ports:
    - 80:9292
  links:
    - mongodb:mongodb
  environment:
    - MONGODB_URI=mongodb://%{project}-mongodb.kontena.local/todo_production
  command: bundle exec puma -p 9292 -e production

Step 3. Deploy the Application

$ kontena app deploy

To follow the execution:

$ kontena app ps
$ kontena app monitor

Step 4. Verify the Deployment

$ kontena app show app

Pick up the public ip address of the node where the app is running and open in a browser http://node_ip_address/

Step 5. Change MongoDB as Stateful

Every time mongodb is deployed all the data is lost. To persist data to host node and re-use it we can define mongodb service as stateful.

$ kontena app rm

Modify kontena.yml

mongodb:
  image: mongo:3.2
  command: mongod --smallfiles
  stateful: true

$ kontena app deploy