from pyVim.connect import SmartConnect
from pyVmomi import vim
import ssl
import json

def collect_vm_hardware(vm_obj):
    hardware_list = []
    try:
        if vm_obj.config and hasattr(vm_obj.config.hardware, 'device'):
            for hw in vm_obj.config.hardware.device:
                if hasattr(hw.deviceInfo, 'label'):
                    hardware_list.append(hw.deviceInfo.label)
                else:
                    hardware_list.append('Unidentified Hardware')
    except Exception as error:
        print(f'Error processing {vm_obj.name}: {error}')
    return hardware_list

def fetch_vcenter_data():
    vc_host = 'vcenter.example.com'
    vc_user = 'administrator@vsphere.local'
    vc_pass = 'secure_password'
    
    ssl_context = ssl.create_default_context()
    ssl_context.check_hostname = False
    ssl_context.verify_mode = ssl.CERT_NONE
    
    try:
        service = SmartConnect(
            host=vc_host,
            user=vc_user,
            pwd=vc_pass,
            sslContext=ssl_context
        )
        
        content = service.RetrieveContent()
        host_view = content.viewManager.CreateContainerView(
            content.rootFolder,
            [vim.HostSystem],
            True
        )
        
        inventory = []
        
        for esxi_host in host_view.view:
            for virtual_machine in esxi_host.vm:
                entry = {
                    'vm_name': virtual_machine.name,
                    'host_name': esxi_host.name,
                    'devices': collect_vm_hardware(virtual_machine)
                }
                inventory.append(entry)
        
        with open('vm_inventory.json', 'w') as output:
            json.dump(inventory, output, indent=2)
            
    except Exception as connection_error:
        print(f'Connection failed: {connection_error}')
    finally:
        if 'service' in locals():
            SmartConnect.Disconnect(service)

if __name__ == '__main__':
    fetch_vcenter_data()

This implementation connects to a vCenter server and retrieves:

1. All ESXi hosts in the inventory
2. Virtual machines running on each host
3. Hardware devices configured for each VM

The collected data is stored in a JSON file with the following structure:

[
  {
    "vm_name": "VM1",
    "host_name": "esxi01.example.com",
    "devices": ["SCSI Controller", "Network Adapter"]
  }
]

Key components:

• Uses pyVmomi library for vSphere API interactions
• Implements proper SSL context configuration
• Incldues error handling for connection issues
• Outputs structured JSON data for further processign