bregman-devops-notes: A Groovy repository from Learning

ℹ️ This repository is about gathering any useful resources and information regarding DevOps and secondly, provide some roadmap for those who want to practice DevOps.

📝 Feel free to add more resources by submitting pull requests

DevOps	Jenkins	Git	Ansible	Network	Linux	Terraform
Coding	Python	Go	Shell Scripting	Kubernetes	VictoriaMetrics	Prometheus	Mongo
Cloud	AWS	Azure	Google Cloud Platform	OpenStack	Security	Puppet
ELK	DataOps	OpenShift	SQL	Containers

DevOps Roadmap
Alternative Roadmaps
Learn About DevOps
Learn Git
Programming
Operating Systems
DevOps Toolchain

DevOps

DevOps Roadmap

The following path is opinionated. You can find alternative paths in the alternative roadmaps section
Do NOT attempt to learn everything, especially if you are a complete beginner (the burnout will make you regret you ever heard the word DevOps)
Learn enough to say "I know what is DevOps and I understand how to practice it". You can learn everything else by demand or when you feel ready

The must list

Topic	What to learn	Alternatives	Description
Version Control	Git	-	Version Control is used everywhere and Git is the leading version control technology
Programming	At least one programming language	None. Don't settle for learning only shell scripting	Anyone who practice DevOps should know programming to some extent
Operating System	Linux	Other distribution of Linux :D	Operating Systems is another must when it comes to DevOps
Protocols	DHCP, UDP, TCP, HTTP, SSH	Not as an alternative, you can simply learn later: NFS, NTP, FTP	Learn how these protocols work and what they are used for
Applications	Web Server, Load Balancer, Cache, Database		Learn how they work and try out some implementations (e.g. MySQL for databases and httpd for web servers)
System Design	Availability, Reliability, Scalability, Performance	Learn how to design infrastructure and systems

The second must list :) Seriously though, don't try to master everything in this list and start with something that you are interested in. The order has no meaning in this case.

Topic	What to learn	Alternatives
Configuration Management and IaC	Ansible and Terraform	CM: Chef, Puppet and Salt. IaC: Pulumi and CloudFormation
Cloud	Azure, AWS, GCP	-
Containers	Podman and Kubernetes	Docker instead of Podman. Nomad instead of Kubernetes
CI/CD	Jenkins, GitHub Actions	Gitlab CI, Circle CI, Argo CD
Logging and Dashboards	Elastic Stack, Report Portal, Grafana	Graylog, Splunk
Monitoring	VictoriaMetrics, Prometheus	Nagios, Centreon, Datadog

Alternative Roadmaps

There are other DevOps roadmaps and learning plans out there. If you feel the one above is little bit too much or just want to look at other options, maybe you'll find the following useful

Name	Description
DevOps Roadmap	DevOps skills roadmap. What to to learn at each step.
DevOps 3 Weeks Plan	Detailed plan on what to do at each day
How to Become a DevOps Engineer in Six Months?	Skills you need to become DevOps Engineer

Learn about DevOps

Name	Description
What is DevOps? - Amazon	Learn what is DevOps by Amazon and which AWS services can help you to practice DevOps
What is DevOps? - Red Hat	Learn what is DevOps by Red Hat, including many interesting articles
What is DevOps? - Microsoft	Learn what is DevOps by Microsofy, including Azure DevOps service
What is DevOps? - Google	Learn what is DevOps by Google
Who is DevOps? - Spacelift	Who is DevOps? Is it Worth it to Become a DevOps Engineer?

Learn Git

Make sure you are comfortable with the following list once you done learning Git basics

Commit changes to a project
Submit pull/merge requests
Working with branches
Rebase changes (change order, squash, ...)

Name	Description
Interactive Git Branching Learning	Visual and interactive way to learn Git branching
Learn git concepts, not commands	Article on Git concepts
Codeacademy Learn Git	Not Free

Programming

Practicing DevOps without knowing programming is like eating cornflakes with ketchup - it's just doesn't makes sense (yes, my analogies are the worst).
Here is a list of some good sites to practice programming in general:

Name	Comments
HackerRank	Practice Coding skills
Exercism	Over 48 languages and 2600 exercises
LeetCode	Practice programming online

A better approach might be to actually write some DevOps related scripts or projects. Start simple. Here are some ideas:

Write a script that gets a number of instances and a name of a platform (AWS, local, Azure, ...) as parameters and provisions those instances on the chosen platform
Write a script to parse logs and extract some specific information you are interested in
Write a script that extracts information from some website using web scraping libraries

Operating Systems

Deep dive into operation system internals. Linux should be your first choice. Here is a list of resources that will help you learn Linux.
Also, don't waste a second on picking the right distribution. For learning OS concepts and internals, any distribution would work fine.

Name	Comments
Linux Journey	Written guides + exercises + quiz
Techmint Linux	Written articles/lessons
Linux Survival	Interactive guide

Once you are familiar with the commands and feel comfortable enough to keep deep diving, learn some OS concepts:

Memory Management
Processes
Kernel
Virtualization
Storage

Linux Master Application

A completely free application for testing your knowledge on Linux

System Design

System Design can be a complex topic. For that reason, I've created a separate repository for you to learn it properly.

Tooling, Apps & Services

Name	Description
Periodic table of DevOps tools	Table of DevOps tools per category
DevOps tool chest	List of DevOps tools
DevOps Bookmarks	NSIA
CNCF Cloud Native Interactive Landscape	CNCF's recommended path through the cloud native landscape
DevOpsBookmarks	To discover tools in the devops landscape.

Interactive practice and learning sites

Learning by doing proved to be a very effective way to learn new things. If you are at a point where you don't feel comfortable enough to do it by yourself and you look for some guidance, the following sites might assist you

Name	Description
Kodekloud Engineer	perform real tasks by working in a fictional organization
QWIKLBAS	AWS, GCP, ... lab practice

Community

Another great way to learn is to learn from the experience of others. For that, the are some excellent DevOps communities.

Name	Comments
Reddit DevOps	Reddit DevOps Community
Linkedin DevOps	Linkedin DevOps Community
DevOps Bits	Facebook DevOps group. Disclosure: I started it :)

Conferences

Name	Comments
DevOpsDays	DevOps Conferences around the world
Velocity	Oracle's DevOps conference

Books

Read book! Practice is important and the best way to learn practical things but reading about cultures, methods, concepts, ... has its own important role in your path towards mastering DevOps and SRE.

Name	Comments
The Phoenix Project	DevOps explained through a story of a fictional company on the brink of a failure
The DevOps Handbook
Google SRE books	Very detailed books on the theory and also practice of SRE
Essential Infrastructure as Code	VBook about automating software infrastructure by capturing desired configurations as a set of scripts.

Blogs & News

My top picks:

Name	Description
Codefresh Blog	Probably best GitOps content out there

Other DevOps & Software Engineering related blogs

Name	Description
Spacelift Blog	Excellent tech blog on Kubernetes, Ansible, Terraform and Engineering in general
opensource.com	open source related articles including DevOps
CooperPress	various newsletters on different topics
afreshcup	"covering Ruby on Rails and whatever else I find interesting in the universe of software"
thisweekindevops.com	"DevOps news without the hype"
Uber Engineering	Not only DevOps
Azure DevOps Blog	Microsoft DevOps Blog
DevOps Dudes	"Shortening the system development life cycle"
Netflix Tech Blog	Not Only DevOps
CloudBees Blog
Red Hat Blog	Not only DevOps
Atlassian DevOps Blog
Facebook Engineering Blog	Not only DevOps
DoorDash Engineering Blog	Not only DevOps
Palark tech blog	Tech blog dedicated to DevOps & SRE

Articles

Name	Description
Infrastructure as Code, Part One
DevOps Best Practices	What is DevOps + list of resources
Infrastructure as Code: Examples, Best Practices & Tools

DevOps Snippets

Name	Description
DevOpsnipp	Sharing DevOps Snippets
Gist	Not DevOps specific

Other Great Projects

Name	Comments
DevOps Wiki	"A wiki of Devops Tools, Tutorials and Scripts"
cheat-sheet-pdf	"Cheat-Sheet Collection for DevOps, Engineers, IT and more"
System Design Primer	"Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards."
awesome-sre	A curated list of Site Reliability and Production Engineering resources

Interview Questions

Name	Comments
System Design Primer	"Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards."
kdn251	Interviews
DevOps Exercises	By topic, DevOps related questions and exercises

Misc

Name	Description
CheatSheets	CheatSeets for Kubernetes, Jenkins, YAML, Groovy, etc.
Codelabs	"Codelabs provide a guided, tutorial, hands-on coding experience"

Design & Architecture

Name	Description
The 12 Factor App	must-read in my opinion
A distributed Systems Reading List

DevOps Tooling

Note: "Provisioning" tools can be used to perform configuration management to some extent. The same applies for configuration management tools, which can be used for pprovisioning.

amirhnajafiz-learning/bregman-devops-notes