Difference between revisions of "Contextualization of Windows VMs"
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[[Category:OpenNebula]] | [[Category:OpenNebula]] | ||
[[Category:How To]] | [[Category:How To]] | ||
OpenNebula uses a method called contextualization to send information to the VM at boot time. Information is collected in the Template and is essential to configure the VM. | OpenNebula uses a method called contextualization to send information to the VM at boot time. Information is collected in the Template and is essential to configure the VM. | ||
The VM template has a section called | The VM template has a section called "'''Context'''" where you can automate different configuration aspects. | ||
Context section has 3 parts: | The Context section has 3 parts: | ||
==='''''Configuration'''''=== | ==='''''Configuration'''''=== | ||
[[File:Template-Configuration.png]] | [[File:Template-Configuration.png|768px]] | ||
This is the most basic context configuration | This is the most basic context configuration provided by OpenNebula, where you can: | ||
* Enable '''SSH''' and '''Network''' contextualization | * Enable '''SSH''' and '''Network''' contextualization. Text to be added | ||
* Add '''SSH public keys'''. Keys will be added to USERNAME authorized_keys file or root in case USERNAME is not set. | * Add '''SSH public keys'''. Keys will be added to USERNAME authorized_keys file ([[#Custom Vars|See custom section]]) or to root in case USERNAME is not set. | ||
* '''START_SCRIPT''' - | * '''START_SCRIPT''' - Script which is executed when the machine starts up. It can contain either shell script or Shebang. For example START_SCRIPT="yum upgrade". | ||
==='''''Files'''''=== | ==='''''Files'''''=== | ||
Revision as of 13:37, 15 March 2017
OpenNebula uses a method called contextualization to send information to the VM at boot time. Information is collected in the Template and is essential to configure the VM.
The VM template has a section called "Context" where you can automate different configuration aspects.
The Context section has 3 parts:
Configuration
This is the most basic context configuration provided by OpenNebula, where you can:
- Enable SSH and Network contextualization. Text to be added
- Add SSH public keys. Keys will be added to USERNAME authorized_keys file (See custom section) or to root in case USERNAME is not set.
- START_SCRIPT - Script which is executed when the machine starts up. It can contain either shell script or Shebang. For example START_SCRIPT="yum upgrade".
Files
You can select files you want to include from the list and they will be automatically added in FILES_DS attribute.
Also you can define a space-separated list of scripts that will run at boot, using INIT_SCRIPTS attribute.
Files can be added in "Files" section in the left menu under "Images".
Make sure that context.ps1 has been selected.
Custom Vars
In this section you can setup a more advanced contextualization, the attributes available are:
- VARIABLE - Variables that store values related to this virtual machine or others . The name of the variable is arbitrary (in the example, we use hostname).
- SET_HOSTNAME - This parameter value will be the hostname of the VM.
- ETHx_MAC - Used to find the correct interface
- ETHx_IP - IPv4 address for the interface
- ETHx_NETWORK - Network address of the interface
- ETHx_MASK - Network mask
- ETHx_GATEWAY - Default IPv4 gateway for the interface
- ETHx_DNS - DNS for the network
- USERNAME - User to be created in the guest OS. If any password attribute is defined (see below) it will change this user (defaults to root).
- PASSWORD_BASE64 - Password encoded in base64. To be set for the user USERNAME.
- PASSWORD - Password to be set for the user USERNAME. This parameter is not recommended, use PASSWORD_BASE64 instead.