cherry pick: support for virtual chassis

README.md

@@ -44,6 +44,7 @@ tenant_name: Tenant name from NetBox
 site_name: Site name from NetBox
 site_group: Site Group name from NetBox
 site_address: Site address from NetBox
+virtual_chassis_name: Virtual Chassis name from NetBox
 ```
 
 ### Expressions
@@ -70,7 +71,7 @@ site: The site object  (go struct, most fields are CamelCase, ex: site.Slug)
 
 Expressions have access to all expr functions and the following:
 ```
-FindTag(<tags>, <tag_name)
+FindTag(<tags>, <tag_name>)
 ```
 
 ### Debug

internal/inventory/inventory.go

@@ -123,6 +123,11 @@ func (i *InventorySync) getDeviceSessions(devices []netbox.DeviceWithConfigConte
 			siteGroup = site.Group.Slug
 		}
 
+		virtualChassisName := ""
+		if device.VirtualChassis != nil {
+			virtualChassisName = device.VirtualChassis.Name
+		}
+
 		env := i.getCommonEnvironment("device")
 		env.Device = device
 		env.DeviceName = device.Display
@@ -135,6 +140,7 @@ func (i *InventorySync) getDeviceSessions(devices []netbox.DeviceWithConfigConte
 		env.SiteName = site.Display
 		env.SiteGroup = siteGroup
 		env.SiteAddress = siteAddress
+		env.VirtualChassisName = virtualChassisName
 
 		err = applyOverrides(i.cfg.Session.Overrides, env)
 		if err != nil {

pkg/evaluator/environment.go

@@ -27,6 +27,7 @@ type Environment struct {
 	SiteName                   string `expr:"site_name"`
 	SiteGroup                  string `expr:"site_group"`
 	SiteAddress                string `expr:"site_address"`
+	VirtualChassisName         string `expr:"virtual_chassis_name"`
 
 	Device interface{} `expr:"device"`
 	Site   interface{} `expr:"site"`