A practical, structured learning repository for mastering Linux, System Administration, Networking, Automation, Containers, CI/CD, Cloud, Kubernetes, DevSecOps, Observability, and SRE.
Practical Environment: Ubuntu Linux is used as the primary hands-on operating system throughout this repository.
Hands-on Linux and DevOps is designed to take you from Linux fundamentals to production-oriented DevOps engineering.
The focus is not only on learning commands or tools, but on understanding how systems work, practicing them, troubleshooting failures, and automating real-world tasks.
Learn → Practice → Build → Break → Troubleshoot → Automate → Secure → Monitor
Linux is the foundation of much of today's infrastructure.
DevOps connects development, infrastructure, automation, security, and operations into a continuous delivery and reliability workflow.
Linux
↓
System Administration
↓
Networking & Security
↓
Automation
↓
Git & Containers
↓
CI/CD
↓
Infrastructure as Code
↓
Cloud
↓
Kubernetes
↓
GitOps
↓
Observability & SRE
The goal is to develop the ability to build, deploy, operate, troubleshoot, secure, and improve production systems.
- Linux Fundamentals
- Terminal & Bash
- Files & Directories
- Processes & Services
- Package Management
- Text Processing
- Networking
- SSH
- System Administration
- Storage
- Security
- Shell Scripting
- Development Tools
- Programming Environments
- Performance
- Troubleshooting
- Git & GitHub
- Web Infrastructure
- Databases
- Docker & Containers
- CI/CD
- Ansible
- Terraform
- Cloud
- Kubernetes
- Helm
- GitOps
- DevSecOps
- Observability
- SRE
- High Availability
- Disaster Recovery
- System Design
This repository follows a practical learning cycle:
┌──────────────┐
│ Learn │
└──────┬───────┘
↓
┌──────────────┐
│ Practice │
└──────┬───────┘
↓
┌──────────────┐
│ Build │
└──────┬───────┘
↓
┌──────────────┐
│ Break It │
└──────┬───────┘
↓
┌──────────────┐
│ Troubleshoot │
└──────┬───────┘
↓
┌──────────────┐
│ Automate │
└──────┬───────┘
↓
┌──────────────┐
│ Secure │
└──────┬───────┘
↓
┌──────────────┐
│ Monitor │
└──────────────┘
The objective is to understand why something works, not simply memorize commands.
hands-on-linux-and-devops/
│
├── README.md
├── ROADMAP.md
├── TABLE-OF-CONTENTS.md
├── CONTRIBUTING.md
├── CHANGELOG.md
├── LICENSE
│
├── linux/
├── devops/
├── projects/
├── labs/
├── troubleshooting/
├── interview-preparation/
├── cheatsheets/
├── resources/
│
└── assets/
├── images/
├── diagrams/
└── screenshots/
| Directory | Purpose |
|---|---|
linux/ |
Linux fundamentals and administration |
devops/ |
DevOps, Cloud, CI/CD, Kubernetes and related technologies |
projects/ |
End-to-end practical projects |
labs/ |
Small hands-on experiments and exercises |
troubleshooting/ |
Real-world problems and solutions |
interview-preparation/ |
Technical interview preparation |
cheatsheets/ |
Quick command and concept references |
resources/ |
Useful external learning resources |
assets/ |
Images, diagrams and screenshots |
The knowledge is reinforced through progressively larger projects:
01. Linux Server
↓
02. Secure Web Server
↓
03. Dockerized Application
↓
04. CI/CD Pipeline
↓
05. Infrastructure as Code
↓
06. Automated Server Configuration
↓
07. Kubernetes Deployment
↓
08. GitOps Platform
↓
09. Observable Infrastructure
↓
10. Production-Style Platform
The final goal is to combine the major technologies into a realistic production workflow.
Follow the recommended learning progression:
Linux
↓
Terminal & Bash
↓
System Administration
↓
Networking
↓
SSH
↓
Storage
↓
Security
↓
Automation
↓
Git
↓
Docker
↓
CI/CD
↓
Ansible
↓
Terraform
↓
Cloud
↓
Kubernetes
↓
Helm
↓
GitOps
↓
DevSecOps
↓
Observability
↓
SRE
↓
Production Engineering
See ROADMAP.md for the detailed learning plan.
For the complete topic-by-topic index, see:
By working through this repository and completing the practical projects, you should be able to:
- Administer Linux systems
- Understand TCP/IP networking
- Secure Linux servers
- Automate system administration
- Manage Git-based workflows
- Build and operate containers
- Create CI/CD pipelines
- Automate infrastructure with Ansible
- Provision infrastructure with Terraform
- Work with cloud platforms
- Deploy applications to Kubernetes
- Implement GitOps workflows
- Monitor infrastructure and applications
- Troubleshoot production problems
- Apply DevSecOps practices
- Understand SRE principles
- Design reliable and scalable systems
This repository is not about collecting commands or completing Markdown files.
The goal is to become an engineer who can:
Understand
↓
Build
↓
Deploy
↓
Automate
↓
Secure
↓
Monitor
↓
Troubleshoot
↓
Scale
↓
Improve
Linux is the foundation. DevOps is the engineering practice. Automation is the force multiplier. Reliability is the standard.
This project is licensed under the terms of the LICENSE file.