When you initially apply a template to one or more hostsNIOS-X servers, the idea is to have all applicable hosts servers adopt the service configurations defined in the template. However, if you want to control whether you can add, modify, or delete services on certain hostsservers, BloxOne The Infoblox platform offers lock type options. These options allow you to define how hosts servers adopt service configurations while being associated with a template.
For a host server associated with a template, BloxOne the Infoblox platform indicates whether the services on the host server have changed in relation to the template; this change is called drift. BloxOne The Infoblox platform also calculates the drift state of a host server when service changes are allowed on the hostserver. The drift state implies whether the host server to which a specified template is applied adheres to the defined specifications or not. The drift state can be True or False, as follows:
True: The host server has drifted from the template and is no longer adhering to the template specifications.
False: The host server has not drifted from the template and is still adhering to the template specifications.
The following lists the lock types and drift states on a hostserver:
Lock Type | Drift State | Description |
|---|---|---|
Locked | False | When a host server is Locked, it is associated with the applied template. Therefore, no service addition, modification, or deletion is allowed on the hostserver. The drift state is False when a host server is in the Locked state since there is no drifting from the template. If you want certain hosts servers to adhere to all the updates made to the applied template, you can lock them to the template. In other words, whenever changes are made to the template, the services on these locked hosts servers will be immediately reconciled based on changes made to the template. When you modify the template, the modification will apply to locked hosts servers automatically, without you having to approve it. However, the modification will not apply to hosts servers whose Lock Type is Unlocked or Monitored. |
Unlocked | N/A | When a host server is in the Unlocked state, it is not locked to the applied template. Therefore, service addition, modification, and deletion on the host server are allowed. The drift state is not calculated or displayed for an unlocked hostserver, meaning BloxOne the Infoblox platform does not perform any checks on the drift state. You can assign this lock type to a host server if you want to be able to modify its services but do not need to monitor its drift state in relation to the applied template. |
Monitored | true or false | When you first apply a template to a hostserver, the lock type of the host server is set to Monitored, and the drift state is set to False. In this state, you can add new services to the hostserver. When you do that, the drift state will change to True, indicating that services on the host server have drifted from the applied template. You can assign this lock type to a host server and monitor its drift state in relation to the applied template for testing purposes. |
To set the lock type on a hostserver, do the following:
Log in to the Cloud Services Infoblox Portal.
Click the Manage > Infrastructure > HostsConfigure > Servers tab.
Select the host server on which you want to set the lock type, and click Edit. Note that you must first apply a template to the host server before setting the lock type.
In the General Info step of the Edit <Host> <Server> dialog, choose one of the following from the drop-down menu of the Template field:
Locked: When you choose Locked, the host server is locked to the applied template. Therefore, no service addition, modification, or deletion is allowed on the hostserver. The drift state is False when a host server is in the Locked state since there is no drifting from the template.
Unlocked: When you choose Unlocked, the host server is not locked to the applied template. Therefore, service addition, modification, and deletion on the host server are allowed. The drift state is not calculated or displayed.
Monitored: When you choose Monitored, you can add new services to the hostserver. When you do that, the drift state will change to True, indicating services on the host server has drifted from the applied template.
To view the lock type and drift status of a hostserver, see Viewing General Host Server Information.