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SAP HANA Cloud Platform has a new service added to the offering list which is Virtual Machines. Using this service you can install your own applications that are not covered by the platform as of now for example a node.js or an R application, a bobj application etc.

Note: Before we proceed there are few pointers that you have to keep in mind for using this service.

  1. As on January’17 this service is only available in Europe data center.
  2. Once you create a virtual machine you are the owner of a virtual machine, you are responsible for applying patches on the operating system (the VM comes with SUSE Linux Enterprise Server installed) and for triggering backups via snapshots.
  3. In this series we are using a Windows 64 bit machine and Google Chrome as a browser and command prompt for running the console commands.
  4. You hava Java installed and environment variable JAVA_HOME is set to the Java installation folder.
  5. An account in SAP HANA Cloud Platform Europe data center with Admin roles and with Virtual Machine quota provisioned.

How do I check whether the quota is assigned or not ?

Once you login to your global account on the cockpit click on the account 

then click on quota management

here you will see the quota assigned based on the purchase you made.

Exercise 1: System Setup

In this step we will download the necessary sdk/tools/software and extract them under a common location to make our work easier.

1. Double click on “My Computer” from the Windows desktop.

2. Double Click on “C directory”.

3. Create a New folder. Right click. Click on “New”.

4. Click on “Folder”.

5. Name the new folder as “Work”. Press Enter.

6. Open your “Chrome Browser”.

7. Download OpenSSL from https://code.google.com/archive/p/openssl-for-windows/downloads 
Note: Download the latest version.

8. Download putty from http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
Note: Download the zip file putty.zip

9. Download the SAP HANA Cloud Platform Tools from https://tools.hana.ondemand.com/ from Cloud tool.
Note: Download the latest version of sdk (Java web).

10. neo-java-web-sdk-1.102.26, putty and openssl-0.9.8k_X64 zip files are available now in the “Downloads” folder of your windows machine.

11. Right click on “neo-java-web-sdk-1.102.26” then click on “Extract All”.

12. Click on “Browse”.

13. Change the location where the “neo-java-web-sdk-1.102.26” will be extracted to “C:\Work\SDK”. Click “Extract”.
Note: This step will save the SDK to the “Work” folder in C drive.

14. Extract putty and openssl the same way.

15. Change the name of “openssl-0.9.8k_X64” to openssl.

You will have the following folders inside “Work” as shown in the below screenshot.

Congratulations ! You have successfully setup your system by downloading required tools/softwares that are required for creating a Virtual Machine.

Summary: On your windows machine you have created a new folder named “Work” inside “Work” folder you have extracted “neo-java-web-sdk-1.102.26, openssl-0.9.8k_X64 and putty” and renamed them to “SDK, openssl” respectively.

Exercise 2: Create a Virtual Machine

In this exercise we will be creating a Virtual Machine.

1. Press “Windows key” and “R” and then type cmd and then Press OK.

2. Execute: cd C:\Work\SDK\tools

Note: If you are behind a proxy then execute

set HTTPS_PROXY_HOST=proxy
set HTTPS_PROXY_PORT=8080

3. Execute: neo create-vm –size x-small –name <any_name> –account <your account name>–host hana.ondemand.com –user <your s/p/i user id>
4. When prompted password for your user: Enter your s/p/i user password. Press Enter.

5. You will receive a warning as shown below press ‘y’ when the command prompts to save the key. Press Enter.

6. Enter a passphrase by which you want to encrypt the key. Enter passphrase again to confirm. This is done to secure the key.

Note: Remember this passphrase.

VM is created.

7. Execute the command to see the created VM

neo list-vms –account <your account name> –host hana.ondemand.com –user <user id>

You can see the status of the VM as started.

8. Open the browser enter https://account.eu1.hana.ondemand.com/ and login by providing your username and password.

You will see the dashboard.

Note: If you have multiple accounts, select the account and then the sub-account for which the VM quota is assigned to you.

9. Click on Virtual Machines.

10. Click on <your vm name> that you created. You will see more details about the VM.

11. Execute: cd “C:\Work\openssl\bin

12. Execute this command: openssl.exe rsa -in “C:\Work\SDK\tools\hana.ondemand.com\your_hcp_account_name\your_vm_name.key” -out your_vm_name.pem

Note: Here the path “C:\Work\SDK\tools\hana.ondemand.com\your_hcp_account_name\your_vm_name.key” is the one where the key is saved (Exercise 2 Step 5), you can change the name of the .pem file for simplicity keep it same as the .key file.

13. The command will prompt for passphrase. Enter the passphrase that you gave to encrypt the key in Exercise 2 step 6.

Note: You will now have a file named your_vm_name.pem in bin folder of
openssl under Work, which will be used further. This file is generated by OpenSSL.

14. From your Windows desktop under C:\Work double click on “putty”.

15. Double click on “puttygen.exe”

16. Click on Conversions and then on Import key.

17. Browse for your_vm_name.pem file and select it.

18. Enter the Key passphrase to encrypt the key and then confirm. Press “Save private key”.

19. Save the file as “your_vm_name.ppk” under C:\Work\openssl\bin

20. Delete the file “your_vm_name.pem” for security because the file your_vm_name.pem contains unencrypted data.

Summary: You have successfully created Virtual Machine, along with it there are two files that are available on your system your_vm_name.key and your_vm_name.ppk. 

Exercise 3: Connect to Virtual Machine

In this exercise we will open up a SSH tunnel and connect to the Virtual Machine.

1. Go to your SAP HANA Cloud Platform cockpit and get the VM id from there for your virtual machine.

2. Execute the command in the command prompt. cd “C:\Work\SDK\tools

3. Execute: neo open-ssh-tunnel –vm-id 1b68bf45-938c-46f8-9464-d57bf0252d16 –account <your_hcp_account_name> –host hana.ondemand.com –user <your s/p/i user id>

4. Execute neo list-ssh-tunnels

Note: This command will check if the tunnel was opened by listing the currently opened SSH tunnels.

5. From the windows desktop start putty by going to C:\Work\putty. Double click on “putty.exe”

6. Provide the following details:

Hostname: root@localhost
Port: The port number that is generated for you.

7. Double click on “SSH”. Click on “Auth

8. Select the file your_vm_name.ppk from “C:\Work\openssl\bin\your_vm_name.ppk

9. Click on “Session” and then on “Open“.

10. Press “Yes” when the prompt asks to proceed.

11. Provide the passphrase used for encrypting the key in Exercise 2 Step 18. Press Enter

12. You are logged in to the VM as root user.

Congratulations! You are now connected to the virtual machine.

Summary: You have used putty to connect to the Virtual Machine in SAP HANA Cloud Platform and logged in to it as root user.

What’s Next?

Other useful commands:

close-ssh-tunnel : neo close-ssh-tunnel –vm-id <vm_id>

delete-vm : neo delete-vm –account <account_name> –user <e-mail_or_user> –host <landscape_host> –name <vm_name>

Follow this blog to use Tomcat 8

Follow this blog to see how Virtual Machine can be used to install any software (we will install R Server).

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4 Comments

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  1. deepa nair

    Hi Gaurav,

    Wonderful and systematic explanation of HANA VM setup. since this blog deals with innovation , I would like to share this piece of information about VCAMP (Velocity’s Cloud Application Management Platform) , our product has been optimized for SAP applications running on AWS using DevOps design principles and software automation routines, enabling enterprises to benefit from auto provisioning, rapid deployments and configuration management for enterprise applications in AWS, as well as in their private data centers. Ideal for enterprises migrating SAP applications to AWS, as well as those with ancillary applications at other locations, VCAMP delivers a unified ‘single pane of glass’ management console to simplify, optimize and interact with the SAP application.

    Check this for more
    https://velocitycloud.com/consulting/sap-on-aws

    (1) 

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