Jenkins Chained Builds: Auto Deploy & Restart Apache Across Servers | Real DevOps CI/CD Hands-On

Описание: In this DevOps hands-on lab, we configure Jenkins Chained Builds to automatically deploy an application to a shared NFS web directory and then restart Apache on all App Servers — only if the deployment succeeds.

This setup perfectly mirrors real-world CI/CD pipelines, where downstream jobs (service restarts, cache refresh, smoke tests, etc.) are triggered based on upstream job success.
We use Jenkins → Gitea → Storage Server → App Servers to build a complete deployment workflow similar to enterprise DevOps environments.

🔥 What You Will Learn

✔ How to configure Jenkins Freestyle jobs for deployment
✔ Pulling latest code from Git (Gitea) into Storage Server
✔ How NFS shared storage automatically updates App Servers
✔ Creating a downstream Jenkins job triggered only on success
✔ Restarting Apache (httpd) on multiple servers using SSH + sshpass
✔ Handling sudo password prompts inside automation
✔ Real production-style CI/CD workflow

This tutorial is part of the 100 Days of DevOps – KodeKloud Engineer Series, designed to teach automation using real scenarios used by DevOps Engineers, SREs, and Cloud Administrators.

🧩 Real-World Use Cases Covered

Auto-deploying web applications
Service restarts based on successful deployment
Multi-server automation
Secure SSH and sudo automation
Jenkins upstream/downstream job orchestration
Immutable & reliable deployment pipelines

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