Deploying Applications into SAP BTP CloudFoundry: Part 1

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Deploy NodeJS application : No Authentication

Tutorial Overview:

This blog describes the detailed steps required to deploy a basic nodejs application in SAP BTP (earlier know as SAP Cloud Platform) in cloud foundry environment.

This tutorial is divided into two parts:

1. creating a basic nodejs application


2. deploying a nodejs application in BTP (Business Technology Platform)

 

Let us create a new directory called : helloworld and navigate inside that directory
commands:

mkdir helloworld

cd helloworld

 

Step1 : Create a new nodejs project
commands:

npm init

It will create a package.json file with the content similar to this:

{

    "name": "helloworld",

    "version": "1.0.0",

    "description": "a simple nodejs application",

    "main": "index.js",

    "scripts": {

        "test": "echo \"Error: no test specified\" && exit 1"

    },

    "author": "arjun toshniwal",

    "license": "ISC"

}

 

Step2 : Install approuter and configure it as a dependency

commands:

npm install @sap/approuter --save

It will add the following tag in package.json file:

{

  "dependencies": {

    "@sap/approuter": "^10.8.0"

  }

}

 

Step3 : Mention approuter as the start script of this nodejs application

"scripts": {

	"start": "node node_modules/@sap/approuter/approuter.js"

}

The updated package.json file would look like:

{

	"name": "helloworld",

	"version": "1.0.0",

	"description": "a simple nodejs application",

	"dependencies": {

		"@sap/approuter": "^10.9.1"

	},

	"scripts": {

		"start": "node node_modules/@sap/approuter/approuter.js"

	},

	"author": "arjun toshniwal",

	"license": "ISC"

}

 

Step4 : Create xs-app.json which is also known as router configuration file in the root directory

commands:

touch xs-app.json

It should contain the following information:

xs-app.json:

{

	"welcomeFile": "index.html",

	"authenticationMethod": "none"

}

 

Step5 : Create index.html file inside resources directory . This file would serve as a landing page in our application

commands:

mkdir resources

cd resource

touch index.html

index.html :

Hello World

 

Step6 : Create a manifest.yml file which is also known as deployment descriptor file in the root directory of the project

commands:

touch manifest.yml

manifest.yml:

---

applications:

- name: helloworld

  random-route: true

  buildpack: nodejs_buildpack

  memory: 512M

Note: The final package structure looks likes this:

|── helloworld

|  ├── resources

|         ├── index.html

|  ├── package.json

|  ├── xs-app.json

|  ├── manifest.yml

 

Step7 : Login via cf utility

command:

cf login -a <endpoint_url>

where endpoint_url can be found from :

Here it would be,

cf login -a api.cf.eu10.hana.ondemand.com

 

Step8 : Deploy the application into BPT via cf utlitiy:

commands:

cf push

It would give the following output:

where as it can be seen the route of the deployed application is :
helloworld-busy-duiker-qp.cfapps.eu10.hana.ondemand.com

Note:

You can install the cli tools from:https://github.com/cloudfoundry/cli

Goto Download Section to download the cf cli

 

Step 9 : Run the deployed application