Top Devops Training and Placements in RT Nagar, Bengaluru |
DevOps:
What is DevOps?
DevOps is a combination of Development (Dev) and Operations (Ops) that focuses on collaboration, automation, and continuous delivery to improve software development and IT operations. It integrates software development (coding, building, testing) with IT operations (deployment, monitoring, security) for faster and more reliable software releases.
✅ Key Goals of DevOps:
✔ Faster Software Delivery 🚀
✔ Improved Collaboration 🤝
✔ Automation & Continuous Deployment 🤖
✔ High Software Quality & Security 🔐
Why is DevOps Important?
🔹 Reduces time to market for new software features.
🔹 Improves system reliability & performance.
🔹 Automates repetitive tasks (CI/CD pipelines).
🔹 Enhances security with DevOps practices.
🔹 Provides real-time monitoring & quick bug fixes.
Key Stages of DevOps Lifecycle
| Stage | Tools & Technologies | Purpose |
|---|---|---|
| 1️⃣ Plan | Jira, Confluence, Trello | Project planning, collaboration |
| 2️⃣ Develop | Git, GitHub, GitLab, Bitbucket | Version control, source code management |
| 3️⃣ Build | Maven, Gradle, Ant | Compiling and packaging applications |
| 4️⃣ Test | Selenium, JUnit, Postman | Automated testing |
| 5️⃣ Release | Jenkins, Circle, GitHub Actions | CI/CD pipelines for software deployment |
| 6️⃣ Deploy | Docker, Kubernetes, Ansible, Terraform | Containerization & infrastructure automation |
| 7️⃣ Operate | AWS, Azure, Google Cloud, OpenShift | Cloud computing, scaling applications |
| 8️⃣ Monitor | Prometheus, Grafana, ELK Stack | Application performance monitoring |
Core Principles of DevOps
1️⃣ Continuous Integration (CI)
🔹 Automates code integration from multiple developers.
🔹 Helps detect errors early.
🔹 Uses Git, Jenkins, GitHub Actions.
2️⃣ Continuous Delivery (CD)
🔹 Automates software release & deployment.
🔹 Uses Jenkins, AWS Code Deploy, Argo CD.
3️⃣ Infrastructure as Code (IaC)
🔹 Automates infrastructure provisioning.
🔹 Uses Terraform, Ansible, CloudFormation.
🔹 Example: Terraform AWS Instance Deployment
4️⃣ Microservices Architecture
🔹 Breaks applications into smaller, independent services.
🔹 Uses Docker, Kubernetes, Istio.
5️⃣ Monitoring & Logging
🔹 Tracks application performance & logs errors.
🔹 Uses Prometheus, Grafana, ELK Stack, Splunk.
Popular DevOps Tools
| Category | Tools |
|---|---|
| Version Control | Git, GitHub, GitLab, Bitbucket |
| CI/CD | Jenkins, GitHub Actions, CircleCI |
| Containerization | Docker, Kubernetes |
| Configuration Management | Ansible, Chef, Puppet |
| Infrastructure as Code (IaC) | Terraform, CloudFormation |
| Cloud Platforms | AWS, Azure, Google Cloud |
| Monitoring & Logging | Prometheus, Grafana, ELK Stack |
DevOps Engineer Roadmap
Step 1: Learn Linux & Shell Scripting
✅ Basic Linux commands (ls, cd, grep, chmod)
✅ Bash scripting (echo, if-else, loops)
Step 2: Learn Git & Version Control
✅ Git commands (clone, commit, push, pull, merge)
Step 3: Learn Programming & Scripting
✅ Python, Go, Bash (for automation)
Step 4: Master CI/CD Pipelines
✅ Jenkins, GitHub Actions, Circle
Step 5: Learn Containers & Orchestration
✅ Docker (docker run, docker-compose)
✅ Kubernetes (kubectl apply, helm charts)
Step 6: Learn Infrastructure as Code (IaC)
✅ Terraform, Ansible, CloudFormation
Step 7: Learn Cloud Computing
✅ AWS (EC2, S3, Lambda), Azure, Google Cloud
Step 8: Learn Security & Monitoring
✅ DevOps principles
✅ ELK Stack, Prometheus, Grafana