validate_router

- `verify_p_ibgp` function - the same as `add_all_pe_to_p_dry` but with
specific extra vars needed for verification.

gso/workflows/router/validate_router.py

 """Router validation workflow. Used in a nightly schedule."""
 
 import json
+from typing import Any
 
 from orchestrator.targets import Target
 from orchestrator.utils.errors import ProcessFailureError
@@ -12,11 +13,11 @@ from pydantic_forms.types import State, UUIDstr
 
 from gso.products.product_types.router import Router
 from gso.services import infoblox
+from gso.services import infoblox, lso_client, subscriptions
 from gso.services.librenms_client import LibreNMSClient
 from gso.services.lso_client import anonymous_lso_interaction, execute_playbook
 from gso.services.netbox_client import NetboxClient
 from gso.utils.shared_enums import Vendor
-from gso.utils.workflow_steps import add_all_pe_to_p_dry
 
 
 @step("Prepare required keys in state")
@@ -51,6 +52,25 @@ def check_netbox_entry_exists(subscription: Router) -> None:
     client.get_device_by_name(subscription.router.router_fqdn)
 
 
+@step("Verify BGP configuration on P router")
+def verify_p_ibgp(subscription: dict[str, Any], callback_route: str, process_id: UUIDstr) -> None:
+    """Perform a dry run of adding the list of all PE routers to the new P router."""
+    extra_vars = {
+        "dry_run": True,
+        "subscription": subscription,
+        "pe_router_list": subscriptions.get_active_pe_router_dict(),
+        "verb": "verify_p_ibgp",
+        "is_verification_workflow": "true",
+    }
+
+    lso_client.execute_playbook(
+        playbook_name="update_ibgp_mesh.yaml",
+        callback_route=callback_route,
+        inventory=subscription["router"]["router_fqdn"],
+        extra_vars=extra_vars,
+    )
+
+
 @step("Verify correct LibreNMS entry")
 def check_librenms_entry_exists(subscription: Router) -> None:
     """Validate the LibreNMS entry for a Router.
@@ -103,7 +123,7 @@ def validate_router() -> StepList:
         >> check_netbox_entry_exists
         >> check_librenms_entry_exists
         >> anonymous_lso_interaction(verify_base_config)
-        >> anonymous_lso_interaction(add_all_pe_to_p_dry)
+        >> anonymous_lso_interaction(verify_p_ibgp)
         >> resync
         >> done
     )