Refactor Jenkinsfile for improved pipeline structure

Jenkinsfile

@@ -1,45 +1,84 @@
 pipeline {
-    agent any
-
-    stages {
-
-        stage('SonarAnalysis') {
-            steps {
-                echo 'SonarAnalysis..'
-                sh 'cd webapp && sudo docker run  --rm -e SONAR_HOST_URL="http://3.12.35.119:9000" -e SONAR_LOGIN="sqp_61675ccbe677383921c6eb020644d0a56cd116c0"  -v ".:/usr/src" sonarsource/sonar-scanner-cli -Dsonar.projectKey=lms'
-            }
-        }
-        stage('Build') {
-            steps {
-                echo 'Building..'
-                sh 'cd webapp && npm install && npm run build'
-            }
-        }  
-         stage('Release LMS') {
-            steps {
-                script {
-                    echo "Releasing.."       
-                    def packageJSON = readJSON file: 'webapp/package.json'
-                    def packageJSONVersion = packageJSON.version
-                    echo "${packageJSONVersion}"  
-                    sh "zip webapp/dist-${packageJSONVersion}.zip -r webapp/dist"
-                    sh "curl -v -u admin:Admin123* --upload-file webapp/dist-${packageJSONVersion}.zip http://3.12.35.119:8081/repository/lms/"     
-            }
-            }
-        }
-        stage('Deploy') {
-            steps {
-                script {
-                    echo "Deploying.."       
-                    def packageJSON = readJSON file: 'webapp/package.json'
-                    def packageJSONVersion = packageJSON.version
-                    echo "${packageJSONVersion}"  
-                    sh "curl -u admin:Admin123* -X GET \'http://3.12.35.119:8081/repository/lms/dist-${packageJSONVersion}.zip\' --output dist-'${packageJSONVersion}'.zip"
-                    sh 'sudo rm -rf /var/www/html/*'
-                    sh "sudo unzip -o dist-'${packageJSONVersion}'.zip"
-                    sh "sudo cp -r webapp/dist/* /var/www/html"
-            }
-            }
-        }
-    }
-}
+   agent any
+
+   environment {
+      SONAR_HOST_URL = "http://44.223.27.240:9000"
+      SONAR_TOKEN = "squ_ef68f131502f5878f3a9c97d8e88c65100d5d0d5"
+      NEXUS_URL = "http://44.223.27.240:8081/repository/lms/"
+      NEXUS_USER = "admin"
+      NEXUS_PASS = "lms12345"
+   }
+
+   stages {
+
+       stage('Code Quality') {
+           steps {
+               echo 'Sonar Analysis Started'
+
+               sh '''
+                   docker run --rm \
+                   -e SONAR_HOST_URL="${SONAR_HOST_URL}" \
+                   -e SONAR_TOKEN="${SONAR_TOKEN}" \
+                   -v "$WORKSPACE:/usr/src" \
+                   sonarsource/sonar-scanner-cli \
+                   -Dsonar.projectKey=lms
+               '''
+
+               echo 'Sonar Analysis Completed'
+           }
+       }
+
+       stage('Build LMS') {
+           steps {
+               echo 'LMS Build Started'
+               sh '''
+                   cd webapp
+                   npm install
+                   npm run build
+               '''
+               echo 'LMS Build Completed'
+           }
+       }
+
+       stage('Publish LMS') {
+           steps {
+               script {
+                   def packageJson = readJSON file: 'webapp/package.json'
+                   def version = packageJson.version
+
+                   sh """
+                       zip -r lms-${version}.zip webapp/build
+                       curl -v -u ${NEXUS_USER}:${NEXUS_PASS} \
+                       --upload-file lms-${version}.zip \
+                       ${NEXUS_URL}
+                   """
+               }
+           }
+       }
+
+       stage('Deploy LMS') {
+           steps {
+               script {
+                   def packageJson = readJSON file: 'webapp/package.json'
+                   def version = packageJson.version
+
+                   sh """
+                       curl -u ${NEXUS_USER}:${NEXUS_PASS} \
+                       -X GET '${NEXUS_URL}lms-${version}.zip' \
+                       --output lms-${version}.zip
+
+                       sudo rm -rf /var/www/html/*
+                       sudo unzip -o lms-${version}.zip
+                       sudo cp -r webapp/build/* /var/www/html/
+                   """
+               }
+           }
+       }
+
+       stage('Clean Up Workspace') {
+           steps {
+               cleanWs()
+           }
+       }
+   }
+}