Proxmox

import json
from proxmoxer import ProxmoxAPI
from pyzabbix import ZabbixMetric, ZabbixSender

proxmox = ProxmoxAPI('ip.ip.ip.ip',
                     user='root@pam',
                     password='password',
                     verify_ssl=False)

discovery = {'data': []}
packet = []

for node in proxmox.nodes.get():
    for vm in proxmox.nodes(node['node']).lxc.get():
        discovery['data'].append({'{#CONTAINER_NAME}': vm['name'],
                                  '{#CONTAINER_ID}': vm['vmid']})

        packet.append(ZabbixMetric('host', 'vmidcpu[{id}]'.format(id=vm['vmid']), vm['cpu']))
        packet.append(ZabbixMetric('host', 'vmidfreemem[{id}]'.format(id=vm['vmid']),
                                   int(100*int(vm['mem'])/int(vm['maxmem']))))
        packet.append(ZabbixMetric('host', 'vmidfreedisk[{id}]'.format(id=vm['vmid']),
                                   int(100*int(vm['disk'])/int(vm['maxdisk']))))

    for vm in proxmox.nodes(node['node']).qemu.get():
        discovery['data'].append({'{#CONTAINER_NAME}': vm['name'],
                                  '{#CONTAINER_ID}': vm['vmid']})
        packet.append(ZabbixMetric('host', 'vmidcpu[{id}]'.format(id=vm['vmid']), vm['cpu']))
        packet.append(ZabbixMetric('host', 'vmidfreemem[{id}]'.format(id=vm['vmid']), int(100*int(vm['mem'])/int(vm['maxmem']))))
        packet.append(ZabbixMetric('host', 'vmidfreedisk[{id}]'.format(id=vm['vmid']), int(100*int(vm['disk'])/int(vm['maxdisk']))))

packet.append(ZabbixMetric('host', 'vmids', json.dumps(discovery, indent=2)))

result = ZabbixSender(use_config=True).send(packet)