Rails Continuous Delivery

Differences between CD/CD?

CD: Continuous Deployment

High frequency

High investment

High capability

Test First

RSpec: unit / spec

*Minitest: unit / spec / mock / benchmark

Capybara: acceptance test for web application

TDD is your friend

Non-Functional Test

Deployment/Performance/Security

Environments

Prod A:   Dev -> CI -> Staging

Prod B:   Dev -> CI -> Staging      -> QA/Showcase/E2E -> Production

Prod C:   Dev -> CI -> Staging

                      ......

From the cloud, To the cloud

Vagrant / Puppet / Chef / Ansible

Comparison of opensource configuration management software

Essentials

1. Run CI Once you commit any changes

2. Never go home until CI all passed

More than CI: Pipelines

Pipelines

UT/FT/Package -> Staging -> QA/Showcase/E2E -> Production

Capistrano

Thoughts

Why do we need both capistrano and chef?

Thoughts +

1. Moving forward to Ansible & Salt

2. Salt vs. Ansible

    Moving away from puppet to Saltstack or Ansible?

    Rebuilding Capistrano like deployment with Ansible

    Ansistrano