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)

1. DevOps Principles & Culture

2. DevOps Lifecycle & Practices

3. Agile, Scrum, and Kanban in DevOps

4. Intro to CI/CD Pipelines and SDLC

5. Version Control Overview

6. Git & GitHub Basics

7. Branching Strategies (Git Flow, Trunk-Based)

8. Markdown, Issues & Pull Requests

9. 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! 🚀 🚀🚀