Deploying Ruby on Rails applications on Production Servers

This talk guides Ruby on Rails Developers on what they should think about when designing ,developing and deploying a web application on production servers such as Google Compute Engine, Amazon EC2, Digital Ocean, Linode or Rackspace Servers

Transcript

1. Deploying RoR on Production Servers Kenneth Kinyanjui @kenju254 Ruby Conf KE - Africa Nazarene
2. This Talk: ❖ Devops ❖ Version Control ❖ Git Flow ❖ Configuration Management ❖ Monitoring and Logging ❖ Deployment
3. Devops
4. What is DevOps ? • Software Development ◦ Code ◦ Test ◦ Deploy • Quality Assurance ◦ Testing ◦ Continuous Integrations • Operations ◦ Orchestration ◦ Logging ◦ Monitoring Credits @jmwai
5. Version Control
6. ❖ Git ❖ Mercurial ❖ Subversion ❖ CVS
7. Git Flow
9. Configuration Management
10. Convention over Configuration
11. What are this configurations ? ❖ Environment Variable ❖ Nginx Configuration ❖ Passenger Configuration ❖ Database Configuration
12. Tools of Trade ❖ Ansible ❖ Puppet ❖ Chef ❖ SaltStack ❖ Capistrano
13. Capistrano ❖ Written in Ruby ❖ Popular in the Rails community ❖ Can be used with other languages as well ❖ Organises operative directions in files known as recipes ❖ Not just userful with deployment, you can use it to build servers, install applications, maintenance and monitoring ❖ Great documentation at http://capistranorb.com/#
14. Ansible ❖ According to the creators, Ansible is the simplest way to automate apps and IT infrastructure ❖ Uses YAML syntax. ❖ Configuration details are organised in roles with each roles containing it’s own files, tasks, handlers, vars, templates. ❖ Playbooks contain roles and target hosts. ❖ Plenty of free tested roles available on https://galaxy.ansible.com ❖ Recently acquired by Redhat
15. Ansible Playbook Example - name: Install Nginx sudo: yes apt: pkg=nginx state=installed update_cache=yes - name: Disable the default site sudo: yes file: path=/etc/nginx/sites-enabled/default state=absent - name: Install Nginx Configuration File. sudo: yes copy: src={{ project_name }} dest=/etc/nginx/sites-enabled/{{ project_name }} notify: Reload Nginx
16. Monitoring & Logging
17. Monitoring ❖ Stack Driver - Google Monitoring and Logging solution ❖ New Relic - Collect and display data on your apps, infrastructure. Real time updates. ❖ Cloud Watch - Monitoring as a service for AWS resources. Can monitor EC2 servers, RDS, DynamoDB... ❖ Nagios - Monitor your entire infrastructure - Systems, networks, infrastructure. nagios.org
18. Logging ❖ Sentry - Real Time exception tracking for webapps. Started in the Django community. Now a paid service. ❖ LogStash - Collect and analyze logs from various sources. ❖ Kibana - Collect, analyze, visualize, search your logs. ❖ Datadog - Collect and visualize various performance metrics from your apps.
19. Deploying an RoR App Guidelines ❖ Version Control with Git ❖ Git Flow Guidelines within the team ❖ Configuration Management & Orchestration with Ansible ❖ Daily, Weekly Builds ❖ Monitoring and Logging with Papertrail ❖ Issue Tracking and process of Solving bugs ❖ Think Agile
20. What is a Modern Web Developer? ❖ Can you make a build in one step? ❖ Do you make daily builds? ❖ Do you use configuration management tools to automate Infrastructure? ❖ Is the development documented and automated? ❖ Can you roll out and roll back deployments in one step? Credits @jmwai
21. Kenneth Kinyanjui @kenju254 ken@faidika.co.ke kennethkinyanjui.info