Using the same key for multiple passwordless installations

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Need the ability to install passwordless via XML robot installation using the same key to multiple servers. Is this possible?

Environment

• UIM 23.4
• automated_deployment_engine
• XML based installation

Resolution

1. Generate key via method described here: Creating Linux/Unix Authentication Profiles 
2. The .ssh/authorized_keys can be copied to server where robot installation will require it. Permissions should be set to 600.
3. Create XML file that will be used to deploy to multiple servers: Bulk install using XML file
   
   example:
   
   
   

   <?xml version="1.0"?>
   <hosts>
   <host>
   <profile>CentOS</profile>
   <arch>64</arch>
   <hostname>(host_IP)</hostname>
   <username>root</username>
   <isPasswordLess>true</isPasswordLess>
   <privateKey>-----BEGIN EC PRIVATE KEY-----
   Proc-Type: 4,ENCRYPTED
   DEK-Info: AES-256-<private_key_information>

   -----END EC PRIVATE KEY-----

   </privateKey>
   <passPhrase>password</passPhrase>
   <domain>uimdomain</domain>
   <hubip>(hub_IP</hubip>
   <hub>primary_hub</hub>
   <hubrobotname>primary</hubrobotname>
   <hubport>48002</hubport>
   <robotname>ROB1</robotname>
   <tempdir>/opt/tmp</tempdir>
   </host>
   <host>
   <profile>CentOS</profile>
   <arch>64</arch>
   <hostname>(host_IP</hostname>
   <username>root</username>
   <isPasswordLess>true</isPasswordLess>
   <privateKey>-----BEGIN EC PRIVATE KEY-----
   Proc-Type: 4,ENCRYPTED
   DEK-Info: AES-256-<private_key_information>

   -----END EC PRIVATE KEY-----

   </privateKey>
   <passPhrase>password</passPhrase>
   <domain>uimdomain</domain>
   <hubip>(hub_IP</hubip>
   <hub>primary_hub</hub>
   <hubrobotname>primary</hubrobotname>
   <hubport>48002</hubport>
   <robotname>ROB2</robotname>
   <tempdir>/opt/tmp</tempdir>
   </host>
   </hosts>