🎯 Complete journey through 100 days of hands-on DevOps learning with practical solutions and real-world scenarios

This repository contains my comprehensive solutions and learning journey through the KodeKloud 100 Days of DevOps Challenge. Each day focuses on practical, hands-on DevOps skills that are essential in modern software development and infrastructure management.

• ✅ Step-by-step solutions with detailed explanations
• 📝 Practical commands and configurations
• 🔧 Real-world scenarios and troubleshooting guides
• 💡 Best practices and industry standards
• 🚀 Progressive learning from basics to advanced concepts

Day	Topic	Key Technologies	Difficulty
1	Linux User Setup with Non-Interactive Shell		🟢 Beginner
2	Temporary User Setup with Expiry		🟢 Beginner
3	Secure Root SSH Access		🟡 Intermediate
4	Script Execution Permissions		🟢 Beginner
5	SELinux Installation and Configuration		🔴 Advanced
21	Set Up Git Repository on Storage Server		🟢 Beginner
22	Clone Git Repository on Storage Server		🟢 Beginner
23	Fork a Git Repository		🟢 Beginner
24	Git Create Branches		🟢 Beginner
25	Git Merge Branches		🟢 Beginner
26	Git Manage Remotes		🟢 Beginner
27	Git Revert Some Changes		🟢 Beginner
28	Git Cherry-Pick a Commit		🟢 Beginner
29	Manage Git Pull Requests		🟢 Beginner
30	Git Hard Reset		🟢 Beginner
31	Git Stash		🟢 Beginner
32	Git Rebase		🟢 Beginner
33	Resolve Git Merge Conflicts		🟡 Intermediate
34	Git Hook — Auto-tag release on master push (post-update)		🟡 Intermediate

Day	Topic	Key Technologies	Difficulty
6	Create a Cron Job		🟢 Beginner
7	Linux SSH Authentication		🟡 Intermediate
8	Install Ansible		🟡 Intermediate
10	Website Media Backup Script		🟡 Intermediate

Day	Topic	Key Technologies	Difficulty
9	MariaDB Troubleshooting		🟡 Intermediate
11	Install & Configure Tomcat Server		🟡 Intermediate
17	Install and Configure PostgreSQL		🟡 Intermediate

Day	Topic	Key Technologies	Difficulty
12	Linux Network Services		🟡 Intermediate
13	IPtables Installation and Configuration		🔴 Advanced
14	Linux Process Troubleshooting		🟡 Intermediate
15	Setup SSL for Nginx		🔴 Advanced
16	Install & Configure Nginx as Load Balancer		🔴 Advanced
18	Configure LAMP server		🟡 Intermediate
19	Install and Configure Web Application		🟢 Beginner
20	Configure Nginx + PHP-FPM Using Unix Sock		🟡 Intermediate

Day	Topic / Guide	Tech / Badge	Level
35	Install Docker Packages and Start Docker Service		🟡 Intermediate
36	Deploy Nginx Container on Application Server		🟢 Beginner
37	Copy File to Docker Container		🟢 Beginner
38	Pull Docker Image		🟢 Beginner
39	Create a Docker Image From Container		🟢 Beginner
40	Docker EXEC Operations		🟢 Beginner
41	Write a Docker File		🟢 Beginner
42	Create a Docker Network		🟡 Intermediate
44	Write a Docker Compose File		🟡 Intermediate
43	Docker Ports Mapping		🟢 Beginner
45	Resolve Dockerfile Issues		🟡 Intermediate
46	Deploy an App on Docker Containers		🟡 Intermediate
47	Docker Python App		🟡 Intermediate

Day	Topic / Guide	Tech / Badge	Level
48	Deploy Pods in Kubernetes Cluster		🟢 Beginner
49	Deploy Applications with Kubernetes Deployments		🟢 Beginner
50	Set Resource Limits in Kubernetes Pods		🟡 Intermediate
51	Execute Rolling Updates in Kubernetes		🟡 Intermediate
52	Revert Deployment to Previous Version in Kubernetes		🟡 Intermediate
53	Resolve VolumeMounts Issue in Kubernetes		🔴 Advanced
54	Kubernetes Shared Volumes		🟡 Intermediate
55	Kubernetes Sidecar Containers		🟡 Intermediate
56	Deploy Nginx Web Server on Kubernetes Cluster		🟢 Beginner
57	Print Environment Variables		🟢 Beginner
58	Deploy Grafana on Kubernetes Cluster		🟢 Beginner
59	Troubleshoot Deployment issues in Kubernetes		🟡 Intermediate
60	Persistent Volumes in Kubernetes		🟡 Intermediate
61	Init Containers in Kubernetes		🟡 Intermediate
62	Manage Secrets in Kubernetes		🟡 Intermediate
63	Deploy Iron Gallery App on Kubernetes		🔴 Advanced
64	Fix Python App Deployed on Kubernetes Cluster		🟡 Intermediate
65	Deploy Redis Deployment on Kubernetes		🟢 Beginner
66	Deploy MySQL on Kubernetes		🟡 Intermediate
67	Deploy Guest Book App on Kubernetes		🔴 Advanced

Day	Topic / Guide	Tech / Badge	Level
68	Set Up Jenkins Server		🟡 Intermediate
69	Install Jenkins Plugins		🟢 Beginner
70	Configure Jenkins User Access		🟡 Intermediate
71	Configure Jenkins Job for Package Installation		🟡 Intermediate
72	Jenkins Parameterized Builds		🟢 Beginner
73	Jenkins Scheduled Jobs		🟡 Intermediate
74	Jenkins Database Backup Job		🟡 Intermediate

1. Clone the repository

   git clone https://github.com/karadHub/100-Days-Of-DevOps.git
   cd 100-Days-Of-DevOps

2. Navigate to any day's solution

   cd "Day 1"

3. Follow the step-by-step instructions in each day's markdown file

Found an issue or have a better solution? Contributions are welcome!

1. Fork the repository
2. Create your feature branch (git checkout -b feature/improvement)
3. Commit your changes (git commit -am 'Add some improvement')
4. Push to the branch (git push origin feature/improvement)
5. Open a Pull Request