added jenkinsfile for pipeline implementation

Jenkinsfile

@@ -0,0 +1,41 @@
+
+
+cd frontend && npm install
+npm run build
+        aws s3 cp ./build/. \
+          s3://${APPLICATION}-laboratory${ENV}-web \
+            --recursive
+
+
+pipeline {
+    // This line is required for declarative pipelines. Just keep it here.
+    agent any
+
+    // This section contains environment variables which are available for use in the
+    // pipeline's stages.
+    // environment {
+	  //   region = "us-east-1"
+    // }
+
+    // Here you can define one or more stages for your pipeline.
+    // Each stage can execute one or more steps.
+    stages {
+        // This is a stage.
+        stage('Build') {
+          steps {
+             // Get SHA1 of current commit
+             // script {
+             //    commit_id = sh(script: "git rev-parse --short HEAD", returnStdout: true).trim()
+             // }
+              sh "cd frontend && npm install"
+              sh "npm run build"
+         }
+       }
+        stage('Upload') {
+          steps {
+
+           sh "aws s3 cp ./build/. s3://jenkins-makpar-odos --recursive"
+          }
+        }
+    }
+}