Kompose-Flask

Project to be used with Kompose (Kubernetes) to generate an Openshift project. The project will run a flask application using uwsgi and it will be exposed using Nginx. Also includes Postgresql and Redis Images.

Requirements

• Openshift CLI: https://github.com/openshift/origin/tags
• Kompose: http://kompose.io/
• Docker Tools: https://www.docker.com/products/docker-toolbox

Usage

First method: Generate and upload Openshift yaml template

kompose -f docker-compose-prod.yml --provider openshift convert -o template.yaml

oc create -f template.yaml

Second method: Deploy to Openshift from a docker-compose file

Deploy to Openshift:

kompose -f docker-compose-prod.yml --provider openshift up -v

Remove the deployed artifacts from Openshift:

kompose -f docker-compose-prod.yml --provider openshift down -v

Configuration

• HOST: Host of the project (using .<docker_machine_ip>.xip.io will make the application available on local machines)
• POSTGRESQL_USER: User for Postgresql database
• POSTGRESQL_DATABASE: Database name
• POSTGRESQL_PASSWORD: User Postgresql password

Other useful commands

Docker Machine managment

docker-machine start openshift

docker-machine env openshift

eval $(docker-machine env openshift)

Openshift cluster management

oc cluster up

oc cluster down