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diff --git a/utils/netbox/document-hypervisors.py b/utils/netbox/document-hypervisors.py
new file mode 100755
--- /dev/null
+++ b/utils/netbox/document-hypervisors.py
@@ -0,0 +1,182 @@
+#!/usr/bin/env python3
+
+# -------------------------------------------------------------
+# NetBox — Document hypervisors facts in NetBox
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+# Project: Nasqueron
+# License: BSD-2-Clause
+# Description: This script connects to hypervisors,
+# gather facts like last version used,
+# and document them to NetBox config context.
+# Dependencies: PyYAML, pynetbox
+# -------------------------------------------------------------
+
+
+import logging
+import os
+import sys
+
+import pynetbox
+import subprocess
+import yaml
+
+
+TAG_VMWARE = "VMWare ESXi"
+
+
+# -------------------------------------------------------------
+# Get NetBox config and credentials
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+
+def get_netbox_config_from_salt():
+ config_path = "/usr/local/etc/salt/master.d/netbox.conf"
+
+ if not os.path.exists(config_path):
+ return False, None
+
+ with open(config_path) as fd:
+ salt_config = yaml.safe_load(fd)
+ salt_config = salt_config["ext_pillar"][0]["netbox"]
+ return True, {
+ "server": salt_config["api_url"].replace("/api/", ""),
+ "token": salt_config["api_token"],
+ }
+
+
+def get_netbox_config_from_config_dir():
+ try:
+ config_path = os.path.join(os.environ["HOME"], ".config", "netbox", "auth.yaml")
+ except KeyError:
+ return False, None
+
+ if not os.path.exists(config_path):
+ return False, None
+
+ with open(config_path) as fd:
+ return True, yaml.safe_load(fd)
+
+
+def get_netbox_config():
+ methods = [get_netbox_config_from_salt, get_netbox_config_from_config_dir]
+
+ for method in methods:
+ has_config, config = method()
+ if has_config:
+ return config
+
+ raise RuntimeError("Can't find NetBox config")
+
+
+# -------------------------------------------------------------
+# Service container
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+
+def init_app():
+ """Prepare a services container for appplication."""
+ config = get_netbox_config()
+
+ return {
+ "config": config,
+ "netbox": connect_to_netbox(config),
+ }
+
+
+def connect_to_netbox(config):
+ return pynetbox.api(config["server"], token=config["token"])
+
+
+# -------------------------------------------------------------
+# Document hypervisors
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+
+def document_hypervisors(app):
+ logging.info("Query NetBox DCIM to get devices")
+ devices = app["netbox"].dcim.devices.all()
+ for device in devices:
+ if is_device_tagged(device, TAG_VMWARE):
+ document_vmware_hypervisor(app["netbox"], device)
+
+
+def document_vmware_hypervisor(nb, device):
+ logging.info(f"Documenting {device.name}")
+
+ ip = get_device_primary_ip_address(device)
+ logging.info(f"Connecting to {ip}")
+ version = ssh(ip, ["vmware", "-v"])
+ logging.debug(f"Version found: {version}")
+
+ update_actual_context_version(device, version)
+
+
+# -------------------------------------------------------------
+# Helper functions to use NetBox API
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+
+def is_device_tagged(device, tag):
+ tags = [tag.name for tag in device.tags]
+ return tag in tags
+
+
+def get_device_primary_ip_address(device):
+ pos = device.primary_ip.address.find("/")
+ return device.primary_ip.address[0:pos]
+
+
+def update_actual_context_version(device, version):
+ try:
+ current_version = device.local_context_data["actual_context"]["version"]
+ if version == current_version:
+ return
+ except KeyError:
+ pass
+
+ if "actual_context" not in device.local_context_data:
+ device.local_context_data["actual_context"] = {}
+
+ device.local_context_data["actual_context"]["version"] = version
+ logging.info(f"Saving new local context for {device.name}: version is {version}")
+ device.save()
+
+
+# -------------------------------------------------------------
+# Helper functions to use SSH
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+
+def ssh(host, command):
+ return run_process(["ssh", host, *command])
+
+
+def run_process(command):
+ process = subprocess.run(command, capture_output=True)
+
+ if process.returncode == 0:
+ return process.stdout.decode("UTF-8").strip()
+
+ if len(process.stderr) > 0:
+ print(process.stderr.decode("UTF-8").strip(), file=sys.stderr)
+ logging.warning(
+ f"When running {command}: {process.stderr} (exit code: {process.returncode})"
+ )
+ return None
+
+
+# -------------------------------------------------------------
+# Application entry-point
+# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+
+def run_document_hypervisors():
+ app = init_app()
+ document_hypervisors(app)
+
+
+if __name__ == "__main__":
+ LOGLEVEL = os.environ.get("LOGLEVEL", "WARNING").upper()
+ logging.basicConfig(level=LOGLEVEL)
+
+ run_document_hypervisors()

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