Jenkins workshop

123.txt

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+hello

readme.md

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+

welcome/solutions/projects/samplepipeline/jenkinsfile

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+pipeline {
+    agent any
+
+    environment {
+        PYENV_HOME = "${WORKSPACE}/welcome/app/flask-volt-dashboard/.pyenv"
+        PROJECT_HOME = "${WORKSPACE}/welcome/app/flask-volt-dashboard"
+        FLASK_APP = 'run.py'
+        FLASK_ENV = 'development'
+    }
+
+    stages {
+        stage('Clone Flask Project') {
+            steps {
+                // Use the Git plugin to clone the repository
+                git branch: 'jenkins-workshop', url: 'https://github.com/yanivomc/devopshift-welcome.git'
+            }
+        }
+
+        stage('Setup Python Environment and Install Dependencies') {
+            steps {
+                dir("${PROJECT_HOME}") {
+                    script {
+                        // Install virtualenv if not available
+                        sh '''#!/bin/bash
+                        if ! command -v virtualenv &> /dev/null; then
+                            echo "Installing virtualenv..."
+                            pip install virtualenv
+                        fi
+
+                        # Delete previously built virtualenv and create a new one
+                        rm -rf $PYENV_HOME
+                        virtualenv $PYENV_HOME
+                        source $PYENV_HOME/bin/activate
+
+                        # Install required Python packages
+                        pip install -r requirements.txt
+                        '''
+                    }
+                }
+            }
+        }
+
+        stage('Run Flask Application') {
+            steps {
+                dir("${PROJECT_HOME}") {
+                    script {
+                        // Run Flask app within the virtual environment
+                        sh '''#!/bin/bash
+                        source $PYENV_HOME/bin/activate
+                        tasks=$(pgrep -f "flask run")
+                        if [ -n "$tasks" ]; then
+                            echo "Stopping existing Flask application..."
+                            for pid in $tasks; do
+                                kill -9 $pid
+                                echo "Killed process $pid"
+                            done
+                        fi
+
+                        echo "Starting Flask application on 0.0.0.0:5005..."
+                        nohup flask run --host=0.0.0.0 --port=5005 > flask_app.log 2>&1 &
+                        '''
+                    }
+                }
+            }
+        }
+
+        stage('Verify Application') {
+            steps {
+                dir("${PROJECT_HOME}") {
+                    script {
+                        // Sleep to allow Flask to start
+                        sleep 5
+
+                        // Verify Flask application is running
+                        def tasks = sh(script: "pgrep -f 'flask run'", returnStatus: true) ? '' : sh(script: "pgrep -f 'flask run'", returnStdout: true).trim()
+                        if (!tasks) {
+                            // Print error message and show the flask_app.log file content
+                            echo "There is a problem with our flask application - printing log below"
+                            sh 'cat flask_app.log'
+                            error "Flask application is not running!"
+                        } else {
+                            echo "Flask application is running successfully."
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    post {
+        always {
+            dir("${PROJECT_HOME}") {
+                echo 'Cleaning up workspace...'
+                sh 'rm -rf $PYENV_HOME'
+            }
+        }
+    }
+}