Day 2 – DevOps CI/CD Project: Practical Implementation of Build & Deploy a Flask Web App
Github Link for Code: https://github.com/srtechops/Deploy-a...
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Welcome to Day 2 of our DevOps CI/CD Project Series! In this session, we move from theory to real-world implementation — building and deploying a Python Flask web application as part of a fully automated CI/CD pipeline.
🔍 What You’ll Learn:
🧠 00:00–00:59 – Recap & Project Overview: Developer writes Flask app locally, then pushes code to GitHub (SCM).
🖥️ 01:28–03:10 – Test Server Setup: Pull code to test server, install OS, Python, Flask ➕ run app manually or via automation (pytest).
🔁 04:17–05:57 – CI Intro with Jenkins: Use Jenkins for continuous integration — pulls code, runs test cases, provides feedback.
☁️ 05:57–10:32 – Jenkins on AWS: Launch EC2 instance, install Java (required for Jenkins), then install and enable Jenkins.
⚙️ 11:46–19:51 – Build Tools Setup: Install Git, Python, Flask, and pytest. Create test cases to validate endpoints.
🐳 24:04–28:10 – Docker Deployment: Write a Dockerfile to containerize the app; build Docker image post-testing.
🚀 29:28–43:20 – Production Launch: Jenkins builds Docker image and launches container. App accessible on port 5000 (ensure port is open in AWS security group).
🧰 46:42–52:47 – Freestyle Jenkins Job: Configure Jenkins job to pull from GitHub, install dependencies, run tests — green (✅) on success, red (❌) on fail.
🔄 57:59–01:08:43 – CI/CD Execution: Jenkins installs Docker, builds image, and deploys container with Flask app auto-running.
⏱️ 01:22:43–01:29:52 – Automation with Webhooks/Polling: Set Jenkins to auto-check GitHub every few minutes and redeploy on code changes.
This practical session is ideal for DevOps beginners, Python developers, and those looking to implement CI/CD pipelines with hands-on examples.
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