Initial commit

README.md

+# Virtual Chassis Creator
+Tento skript je možné využiť na vytvorenie virtuálných šasi (stack) v Netboxe 
+a súčasné premenovanie rozhraní podľa poradia v stacku. 
+
+## Regex
+Názov rozhraní je uprovavaný pomocou regexu z balíčka **re** v Pythone.
+Názov rozhrania je možné vyskladať z troch premenných
+
+- ```name```
+- ```pos```
+- ```interface```
+
+Premenná ```pos``` sa vždy nahradí aktuálnou pozíciou zariadenia. 
+Poradie zariadení je totožné s poradím v akom boli 
+vložené do poľa **members**.
+
+Hodnota premennej ```pos``` začína na hodnote poľa **initial position** 
+a prechodom na ďalší switch je zvýšená o jedna.
+
+### Príklad regexu
+```(?P<name>GigabitEthernet|Te|StackPort)(?P<pos>\d+)(?P<interface>.+)```
+- ```()``` rozdelia výsledok na skupiny. Skript podporuje 3 skupiny (```name, pos, interface```).
+- ```?P<var>``` definuje skupinu, ktorej hodnota bude uložená v premennej ```var```.
+- ```|``` umožňuje alternatívu, v príklade umožňuje premenovať rozhrania s názvami *GigabitEthernet*, *Te* alebo *StackPort*.
+- ```\d+``` vynucuje zhodu na pozitívnom decimálnom čísle.
+- Kompletná dokumentácia balíčku **re** je dostupná na: [https://docs.python.org/3/library/re.html]()
+
+## Príklad konfigurácie
+
+![](images/vc.webm){width="100%" height="100%"}

virtual_chassis_creator.py

+import re
+
+from dcim.models import Device, Region, SiteGroup, Site, Rack, VirtualChassis
+from extras.scripts import *
+
+__version__ = "0.1.0"
+__author__ = "Roman Mariancik"
+
+JOB_TIMEOUT = 500
+
+
+# WORKING REGEX FOR CISCO SWITCHES
+# (?P<name>GigabitEthernet|Te|StackPort)(?P<pos>\d+)(?P<interface>.+)
+class VirtualChassisCreator(Script):
+    job_timeout = JOB_TIMEOUT
+
+    class Meta:
+        name = "Virtual Chassis Creator"
+        description = "Virtual Chassis Creator"
+        field_order = ["name"]
+
+    chassis_name = StringVar(description="Virtual chassis name")
+    chassis_domain = StringVar(required=False)
+    chassis_description = StringVar(required=False)
+
+    region = ObjectVar(
+        model=Region,
+        required=False,
+    )
+    site_group = ObjectVar(
+        model=SiteGroup,
+        required=False,
+    )
+    site = ObjectVar(
+        model=Site,
+        required=False,
+    )
+    rack = ObjectVar(
+        model=Rack,
+        required=False,
+    )
+    master = ObjectVar(
+        model=Device,
+        required=False
+    )
+    members = MultiObjectVar(
+        model=Device,
+        required=False,
+        label="Virtual chassis members",
+    )
+    initial_position = IntegerVar(default=1,
+                                  description="Position of the first member device. "
+                                              "Increases by one for each additional member.",
+                                  required=False)
+
+    interface_regex = StringVar(required=False, description="Regex used to rename interfaces.")
+
+    def run(self, data: dict, commit):
+        chassis = VirtualChassis.objects.create(name=data["chassis_name"],
+                                                domain=data["chassis_domain"],
+                                                description=data["chassis_description"])
+        chassis.members.set(data["members"])
+        pos = data["initial_position"]
+        # pattern = repr(data["interface_regex"].replace("{pos}", "[0-9]*"))
+        regex = re.compile(data["interface_regex"])
+        for member in chassis.members.all():
+            member.vc_position = pos
+            for interface in member.interfaces.all():
+                # new_name_pattern = repr(data["interface_regex"].format(pos=pos))
+                result = regex.match(interface.name)
+                if result:
+                    try:
+                        new_if_name = f"{result.group('name')}{pos}{result.group('interface')}"
+                        interface.name = new_if_name
+                        interface.save()
+                        print(new_if_name)
+                    except IndexError:
+                        print(f"No such group found for {result}")
+            pos += 1
+            member.save()
+
+        chassis.master = data["master"]
+        chassis.save()
+        return f"Chassis \'{chassis.name}\' successfully created!"