1. Overview
ManageIQ integration with ServiceNow enables authentication with an existing ServiceNow database and add/amend items in the ServiceNow database during state machine processing, such as the virtual machine provisioning state machine. Note that information in this guide assumes you have credentials and access to a ServiceNow database instance.
The following new namespace and class delivers support for the management of ServiceNow Configuration Management Database (CMDB) records using ServiceNow’s RESTful web service.
/RedHat/Integration/ServiceNow/CMDB
You can manage records in the CMDB_CI_SERVER table, including create, update, and/or delete. The following methods are included:
| Method | Action |
|---|---|
create |
Create record in specified ServiceNow table. |
delete |
Delete record in specified ServiceNow table. |
get |
Get record from specified ServiceNow table and list its attributes. |
get_all |
Get all records in ServiceNow and list attributes. |
update |
Get specified record, update required attributes and post updated record. |
update_patch |
Post required attributes to specified record. |
|
Configuration item (CI) and record are used interchangeably and refer to items in a ServiceNow database table. |
2. Configuring ServiceNow Connection
Configure the connection to the ServiceNow database by specifying the credentials in the CMDB schema or instances within.
The following methods are included:
snow_server |
ServiceNow database IP address or resolvable hostname. |
snow_user |
ServiceNow user account with the necessary permissions. |
snow_password |
Associated user account password. |
The table name cannot be changed unless there is a specific requirement to manage records elsewhere. Entries in this table appear in the menu in the ServiceNow web user interface.
table_name |
ServiceNow cmdb_ci_server database table. |
3. Managing Record Attributes
You can specify any attribute via the URI or CMDB class instance. If neither exists, the value is determined from the ManageIQ VM or miq_provision objects.
The attributes can be reduced or extended as required by amending the Ruby methods.
|
Some attributes are not free-text (variable) fields, that is, they must be specific values. For example, the |
3.1. Create and Update (_patch) Record
You can use the following attributes when creating and/or updating a record.
3.1.1. Attribute
Attribute |
Value |
virtual |
Boolean true or false, set to true. |
name VMs |
Virtual infrastructure name. |
short_description |
ManageIQ virtual machine GUID. |
host_name |
The virtual machine’s operating system hostname. |
cpu_count |
The virtual machine’s CPU count. |
ram |
The virtual machine’s memory. |
vendor |
The virtual machine’s hardware vendor (provider). |
sys_id [1] |
ServiceNow record unique system ID. |
4. Use Cases
The following examples show how ServiceNow can be integrated with automation workflows.
4.1. Provisioning a Virtual Machine from a Template
The Cloud and Infrastructure Provision VM from Template State Machines contain RegisterCMDB and ActivateCMDB states.
To create a new ServiceNow record during virtual machine provisioning, amend the ActiveCMDB state to call the create method, for example:
/Integration/ServiceNow/CMDB/create
4.2. Virtual Machine Retirement
The Cloud and Infrastructure default Retirement State Machines contain the DeactivateCMDB state.
To update a virtual machine’s ServiceNow record during virtual machine retirement, amend the DeactivateCMDB state to call the update_patch method, for example:
Integration/ServiceNow/CMDB/update_patch?description=VM%20${/#vm.guid}%20retired%20from%20{productname_short}
4.3. Virtual Machine Reconfiguration (VMware Only)
Create a new System Event instance to update the ServiceNow record after a virtual machine reconfiguration request has been approved and completed.
Create a new /System/Event/ReconfigVM_Task_Complete instance with a relationship value:
/Integration/ServiceNow/CMDB/update_patch
create. Its value is returned from the create request and the ManageIQ object custom attribute servicenow_sys_id is created and updated.