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DevOpsIn120Days

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A structured, hands-on roadmap and preparation guidelines to master DevOps in 120 days

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# DevOpsIn120Days

🚀 Welcome to the  **#DevOpsIn120Days**  challenge! A  **structured, hands-on roadmap**  to master DevOps in 120 days, with:

-   **Daily tasks**  (Linux → Networking → AWS → Kubernetes → AIOps)
    
-   **Real-world projects**  (CI/CD pipelines, EKS clusters, serverless apps)
    
-   **AWS-focused labs**  (EC2, S3, Lambda, EKS) +  **interview prep**
    
-   **Weekly challenges**  (Disaster recovery, predictive scaling, etc.)

**Perfect for:**

-   Engineers transitioning to DevOps
    
-   AWS practitioners preparing for certifications
    
-   Anyone who learns by  **doing**!

**Join the challenge → 1% better every day!**

## How to get started?
-   Fork the repository on your GitHub.
-   Review the topics assigned for each day.
-   Complete the tasks designated for that specific day.

## Challenge Hashtags

-   #bongoDev
-   #DevOpsIn120Days

---
### Phase 1: DevOps Foundation (Days 1–10)

01.  DevOps Principles & Culture
    
02.  DevOps Lifecycle & Practices
    
03.  Agile, Scrum, and Kanban in DevOps
    
04.  Intro to CI/CD Pipelines and SDLC
    
05.  Version Control Overview
    
06.  Git & GitHub Basics
    
07.  Branching Strategies (Git Flow, Trunk-Based)
    
08.  Markdown, Issues & Pull Requests
    
09.  YAML & JSON Fundamentals
    
10.  Linux Basics for DevOps

----------

### Phase 2: Scripting & Automation (Days 11–20)

11.  Shell Scripting Essentials
    
12.  Bash Conditionals and Loops
    
13.  Automating Tasks with Cron
    
14.  Intro to Python for DevOps
    
15.  File Handling in Python
    
16.  APIs & Requests Module
    
17.  Parsing JSON & XML
    
18.  Writing CLI Tools in Python
    
19.  Python Virtual Environments
    
20.  Packaging Python Scripts

----------

### Phase 3: Networking & System Design (Days 21–30)

21.  Computer Networks Overview
    
22.  TCP/IP, HTTP/HTTPS
    
23.  DNS, Load Balancing, NAT
    
24.  Firewalls, Proxies, and Ports
    
25.  Web Servers: Apache vs Nginx
    
26.  Process Management & Logs
    
27.  Systemd and Init Systems
    
28.  Monitoring System Resources
    
29.  SSH, SCP & Remote Access
    
30.  Secure File Transfer & rsync

----------

### Phase 4: Infrastructure as Code – IaC (Days 31–45)

31.  What is IaC?
    
32.  Intro to Terraform
    
33.  Terraform: Providers & Resources
    
34.  Variables, Outputs, Modules
    
35.  Terraform State Management
    
36.  Intro to Ansible
    
37.  Writing Ansible Playbooks
    
38.  Ansible Roles & Variables
    
39.  Ansible with Cloud Providers
    
40.  Ansible Vault & Security
    
41.  Terraform vs Ansible Comparison
    
42.  Packer & Golden Images
    
43.  CloudFormation Basics
    
44.  Intro to Vagrant
    
45.  Setting up a Vagrant Lab

----------

### Phase 5: Cloud Engineering with AWS (Days 46–65)

46.  Cloud Computing Fundamentals
    
47.  Intro to AWS Console & CLI
    
48.  IAM: Users, Groups, Policies
    
49.  EC2: Launch, Connect, Configure
    
50.  EBS, Snapshots, AMIs
    
51.  S3 Buckets, Policies, & Lifecycle
    
52.  VPC, Subnets, Gateways
    
53.  Route53 DNS Management
    
54.  RDS & DynamoDB Overview
    
55.  CloudWatch & Billing Alerts
    
56.  Lambda & Serverless Concepts
    
57.  API Gateway Basics
    
58.  AWS CLI Scripting
    
59.  CloudFormation for Infra Setup
    
60.  Cost Optimization Strategies
    
61.  Multi-Region & Availability Zones
    
62.  AWS Shared Responsibility Model
    
63.  Introduction to EKS
    
64.  AWS Secrets Manager
    
65.  Identity Federation (SSO)

----------

### Phase 6: Containerization with Docker (Days 66–75)

66.  What is Docker & Why Use It?
    
67.  Docker CLI & Dockerfile
    
68.  Docker Compose Basics
    
69.  Volumes, Networks & Ports
    
70.  Docker Images & Layers
    
71.  Multi-stage Builds
    
72.  Private Repositories (DockerHub, ECR)
    
73.  Docker Security Best Practices
    
74.  Scanning Images (Trivy, Clair)
    
75.  Troubleshooting Containers

----------

### Phase 7: Orchestration with Kubernetes (Days 76–90)

76.  Kubernetes Architecture Overview
    
77.  Setting up Minikube or k3s
    
78.  Pods, ReplicaSets, Deployments
    
79.  Services, Ingress & Load Balancing
    
80.  Volumes & Persistent Storage
    
81.  ConfigMaps & Secrets
    
82.  Namespaces, Labels, Selectors
    
83.  Helm Basics & Helm Charts
    
84.  Custom Helm Charts
    
85.  RBAC in Kubernetes
    
86.  Kubernetes Monitoring Tools
    
87.  Horizontal Pod Autoscaling
    
88.  Rolling Updates & Rollbacks
    
89.  CI/CD with Kubernetes
    
90.  EKS Setup on AWS

----------

### Phase 8: DevSecOps (Days 91–100)

91.  What is DevSecOps?
    
92.  Shift Left Security Principles
    
93.  Static Code Analysis (SonarQube)
    
94.  Dependency Scanning (Snyk)
    
95.  Secrets Management (Vault, AWS Secrets)
    
96.  Secure Dockerfile Practices
    
97.  Image Scanning Tools (Trivy, Grype)
    
98.  Kubernetes Security Best Practices
    
99.  RBAC & Network Policies
    
100.  Compliance as Code

----------

### Phase 9: GitOps & Continuous Deployment (Days 101–110)

101.  What is GitOps?
    
102.  GitOps vs DevOps
    
103.  ArgoCD Basics
    
104.  FluxCD Overview
    
105.  Deploying with ArgoCD
    
106.  Rollbacks & Sync Strategies
    
107.  GitOps for Multi-Env Pipelines
    
108.  Managing Secrets in GitOps
    
109.  Integrating GitOps with CI Tools
    
110.  Real-world GitOps Project

----------

### Phase 10: Monitoring, Observability & Logging (Days 111–117)

111.  Monitoring vs Observability
    
112.  Prometheus Basics
    
113.  Grafana Dashboards
    
114.  Metrics & Alerting Rules
    
115.  Loki for Logs
    
116.  ELK Stack (Elasticsearch, Logstash, Kibana)
    
117.  Application Performance Monitoring (APM)

----------

### Phase 11: Final Projects & Job Readiness (Days 118–120)

118.  Build & Document a CI/CD Pipeline Project
    
119.  Resume, Portfolio & LinkedIn Optimization
    
120.  Show The World What You Are Capable Of

Cheers! 🚀 🚀🚀

DevOpsIn120Days

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