Add GPU inventory support (#164)

* Add GPU support

* Some update in the doc

README.md

@@ -13,8 +13,9 @@ The goal is to generate an existing infrastructure on Netbox and have the abilit
 * Generic ability to guess datacenters and rack location through drivers (`cmd` and `file` and custom ones)
 * Update existing `Device` and `Interface`
 * Handle blade moving (new slot, new chassis)
+* Handle blade GPU expansions
 * Automatic cabling (server's interface to switch's interface) using lldp
-* Local inventory using `Inventory Item` for CPU, RAM, RAID cards, physical disks (behind raid cards)
+* Local inventory using `Inventory Item` for CPU, GPU, RAM, RAID cards, physical disks (behind raid cards)
 * PSUs creation and power consumption reporting (based on vendor's tools)
 
 # Requirements

netbox_agent/inventory.py

@@ -13,6 +13,7 @@ from netbox_agent.raid.storcli import StorcliRaid
 
 INVENTORY_TAG = {
     'cpu': {'name': 'hw:cpu', 'slug': 'hw-cpu'},
+    'gpu': {'name': 'hw:gpu', 'slug': 'hw-gpu'},
     'disk': {'name': 'hw:disk', 'slug': 'hw-disk'},
     'interface': {'name': 'hw:interface', 'slug': 'hw-interface'},
     'memory': {'name': 'hw:memory', 'slug': 'hw-memory'},
@@ -32,6 +33,7 @@ class Inventory():
     * cpu
     * raid cards
     * disks
+    * gpus
 
     methods that:
     * get local item
@@ -438,6 +440,34 @@ class Inventory():
             if memory.get('serial') not in [x.serial for x in nb_memories]:
                 self.create_netbox_memory(memory)
 
+    def create_netbox_gpus(self):
+        for gpu in self.lshw.get_hw_linux('gpu'):
+            manufacturer = self.find_or_create_manufacturer(gpu["vendor"])
+            _ = nb.dcim.inventory_items.create(
+                device=self.device_id,
+                manufacturer=manufacturer.id,
+                discovered=True,
+                tags=[INVENTORY_TAG['gpu']['name']],
+                name=gpu['product'],
+                description='GPU {}'.format(gpu['product']),
+            )
+
+            logging.info('Creating GPU model {}'.format(gpu['product']))
+
+    def do_netbox_gpus(self):
+        gpus = self.lshw.get_hw_linux('gpu')
+        nb_gpus = self.get_netbox_inventory(
+            device_id=self.device_id,
+            tag=INVENTORY_TAG['gpu']['slug'],
+        )
+
+        if not len(nb_gpus) or \
+           len(nb_gpus) and len(gpus) != len(nb_gpus):
+            for x in nb_gpus:
+                x.delete()
+
+            self.create_netbox_gpus()
+
     def create_or_update(self):
         if config.inventory is None or config.update_inventory is None:
             return False
@@ -447,4 +477,5 @@ class Inventory():
         self.do_netbox_disks()
         self.do_netbox_interfaces()
         self.do_netbox_motherboard()
+        self.do_netbox_gpus()
         return True

netbox_agent/lshw.py

@@ -22,6 +22,7 @@ class LSHW():
         self.cpus = []
         self.power = []
         self.disks = []
+        self.gpus = []
         self.vendor = self.hw_info["vendor"]
         self.product = self.hw_info["product"]
         self.chassis_serial = self.hw_info["serial"]
@@ -53,6 +54,8 @@ class LSHW():
     def get_hw_linux(self, hwclass):
         if hwclass == "cpu":
             return self.cpus
+        if hwclass == "gpu":
+            return self.gpus
         if hwclass == "network":
             return self.interfaces
         if hwclass == 'storage':
@@ -132,6 +135,15 @@ class LSHW():
 
             self.memories.append(d)
 
+    def find_gpus(self, obj):
+        if "product" in obj:
+            c = {}
+            c["product"] = obj["product"]
+            c["vendor"] = obj["vendor"]
+            c["description"] = obj["description"]
+
+            self.gpus.append(c)
+
     def walk_bridge(self, obj):
         if "children" not in obj:
             return
@@ -139,6 +151,8 @@ class LSHW():
         for bus in obj["children"]:
             if bus["class"] == "storage":
                 self.find_storage(bus)
+            if bus["class"] == "display":
+                self.find_gpus(bus)
 
             if "children" in bus:
                 for b in bus["children"]:
@@ -146,6 +160,8 @@ class LSHW():
                         self.find_storage(b)
                     if b["class"] == "network":
                         self.find_network(b)
+                    if b["class"] == "display":
+                        self.find_gpus(b)
 
 
 if __name__ == "__main__":