Learn DevOps

Learn the craft of "DevOps" (Developer Operations) to reliably deploy your App and keep it Up!

Why?

You should learn more "advanced" DevOps if:

• You / your team have "out-grown" Heroku (e.g: your Heroku bill is more than $100/month)
• You want "more control" over your infrastructure e.g: to run a specific version of software or database.
• Your client/boss has instructed you to use a specific "cloud" provider.
• Curiosity to extend your "back end infrastructure" knowledge to be a more "well-rounded" developer.

What?

"DevOps integrates developers and operations teams in order to improve collaboration and productivity by automating infrastructure, automating workflows and continuously measuring application performance." from: "What is DevOps?" by RackSpace

Who?

Everyone that wants to seriously consider/call themself a "Full Stack" Developer must know how to deploy, secure and monitor their app on their chosen infrastructure.

How?

Over the years we @dwyl have deployed/managed Apps, both our own and those of our clients, on a wide variety of infrastructure and platform providers.

Most of our Apps have been deployed to Amazon Web Services ("AWS") e.g: https://www.sciencemuseum.org.uk
We have several clients who use (and love) Heroku e.g: https://www.ellenmacarthurfoundation.org
For the National Health Service (NHS) in England, (who have a major contract with Microsoft) we deployed to Microsoft Azure.
We have clients who still own their own "Bare Metal" Servers.

Provider-Specific Guides

We have produced a guide for each of our most-used infrastructure/platform providers:

• AWS: https://github.com/dwyl/learn-amazon-web-services
• AWS Lambda: https://github.com/dwyl/learn-aws-lambda
• Azure: https://github.com/dwyl/learn-microsoft-azure
• Heroku: https://github.com/dwyl/learn-heroku
• Fly.io: fly-phoenix-setup.md
• Linode: linode-setup.md
• DigitalOcean: nodejs-digital-ocean-centos-dokku.md

Gogs Git Server

We needed to run a our own Git server for one of our projects. So we deployed Gogs both locally and to Fly.io and documented it: /gogs

Node.js

• Node.js with Dokku: nodejs-digital-ocean-centos-dokku.md
• Node.js "Zero Downtime" Production Deployment with PM2: nodejs-pm2-zero-downtime.md

If you would like to see a guide for a different service provider, please open an issue with your suggestion(s): https://github.com/dwyl/learn-devops/issues

Testing, Continuous Integration & Delivery

Deployment is what you do with your app once you have built, tested and documented it.

If you are unfamiliar with Test-Driven Development (TDD), please see: https://github.com/dwyl/learn-tdd

Next you should be proficient with Continuous Integration. For that we recommend using Travis-CI, see: https://github.com/dwyl/learn-travis

https://github.com/dwyl/learn-travis/blob/master/encrypted-ssh-keys-deployment.md

Resources

Videos

• What is DevOps: https://youtu.be/I7vHqXY22gg
• What is DevOps? - In Simple English: https://youtu.be/_I94-tJlovg (good info but last minute is a RackSpace pitch)
• DevOps for Beginners Course Introduction: https://youtu.be/v7ZcZfGBFcU

Background Reading

• https://en.wikipedia.org/wiki/DevOps
• https://theagileadmin.com/what-is-devops
• https://newrelic.com/devops/what-is-devops
• https://logit.io/blog/post/what-is-devops

Linode-specific How-tos

• SSH with Public Keys: https://www.linode.com/docs/security/use-public-key-authentication-with-ssh
• Using Vagrant for Environment Management: https://www.linode.com/docs/applications/configuration-management/vagrant-linode-environments

Using a Different Cloud Infrastructure Provider?

While this tutorial has focussed on using Linode, we @dwyl have experience of using several infrastructure providers:

• Amazon Web Services: https://github.com/dwyl/learn-amazon-web-services
• Azure: https://github.com/dwyl/learn-microsoft-azure
• Digital Ocean: https://github.com/dwyl/DigitalOcean-Setup
• Heroku: https://github.com/dwyl/learn-heroku

if you have a question specific to using Linode or one of the other "cloud" providers, please open an issue and we will attempt to help!