Jenkins CICD with Telegram alerts

Requirements:

• 2 Servers (Minimum 4GB of RAM)

• 1 Docker Registry (Private or Public)

• 1 Telegram Bot

• Know how to use "Linux", "Docker", and "Jenkins"

Installation Guide

• Docker: installation

• Jenkins: installation

• Telegram: How to create tele bot

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Prepare your application

I created a simple React application, which I made with the help of Lovable AI

GitHub Repo: https://github.com/hardikkangane/sample-reactjs-trading-dashboard

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Setup Jenkins and Docker

• I created one Docker repository on Docker Hub from where I pull and push my images.

• I created Jenkins pipeline (In Jenkins, you need to configure your remote server's SSH key or password to deploy your application)

GitHub Repo: https://github.com/hardikkangane/react-cicd-with-alert

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Workflow of the pipeline

Testing pipeline

Alert
I have added this line of code at the end of my pipeline to get Telegram alerts. (You will get this full pipeline code from my above GitHub repo)

    post {
        failure {
            script {
                def currentTime = new Date().format("dd-MM-yyyy HH:mm", TimeZone.getTimeZone("Asia/Kolkata"))
                def message = "🚨 CICD FAILED 🚨:\nName: ${env.JOB_NAME}\nDateTime: ${currentTime}"
                sh """
                    curl -s -X POST https://api.telegram.org/bot<BOT_TOKEN>/sendMessage \\
                    -d chat_id=CHAT_ID \\
                    -d text="${message}"
                """
            }
        }
    }

Now, if my pipeline fails, I will get an alert on my Telegram.