icinga2-checks/check_pve/icinga2/service.conf

template Host "proxmox-host" {
  import "generic-host"

  vars.pve_host = name
  vars.pve_node = name.split(".")[0]
  // ... or if not matching the fqdn (nodename.domain.example)
  // vars.pve_node = "proxmox-host"

  // if your icinga host don't trust your pve certificate, you'll have to uncomment this line
  // vars.pve_insecure_connection = true
  vars.pve_user = "monitor@pve"
  vars.pve_password = "SuperSecretPassw0rd"

  // change to false, if node is no member of a pve cluster
  vars.pve_cluster = true
}

object Host "proxmox-host.domain.example" {
  import "proxmox-host"

  address = "192.168.42.42"

  vars.pve_storage["flashpool"] = {
    pve_warning = 80
    pve_critical = 90
  }

  vars.pve_storage["diskpool"] = {
    pve_warning = 80
    pve_critical = 90
  }

  // Ignore these disks in health check (USB sticks, SD cards, etc.)
  vars.pve_ignore_disks = [ "sdn", "sdg" ]

  vars.virtual_machines["vm-01"] = {
  }
}

template Service "pve-service" {
  import "generic-service"

  check_command = "pve"
}

apply Service "cluster" {
  import "pve-service"

  vars.pve_mode = "cluster"

  assign where host.vars.pve_host && host.vars.pve_cluster
}

apply Service "services" {
  import "pve-service"

  vars.pve_mode = "services"

  // Ignore cluster status on single nodes
  if (!host.vars.pve_cluster) {
    vars.pve_ignore_services = host.vars.pve_ignore_services || []
    vars.pve_ignore_services.add("corosync")
  }

  assign where host.vars.pve_host
}

apply Service "updates" {
  import "pve-service"

  check_interval = 12h
  retry_interval = 2h
  max_check_attempts = 3

  vars.pve_mode = "updates"

  assign where host.vars.pve_host
}

apply Service "disk-health" {
  import "pve-service"

  vars.pve_mode = "disk-health"

  assign where host.vars.pve_host
}

apply Service "io_wait" {
  import "pve-service"

  vars.pve_mode = "io_wait"

  vars.pve_warning = 10
  vars.pve_critical = 30

  assign where host.vars.pve_host
}

apply Service "cpu" {
  import "pve-service"

  vars.pve_mode = "cpu"

  vars.pve_warning = 70
  vars.pve_critical = 90

  assign where host.vars.pve_host
}

apply Service "memory" {
  import "pve-service"

  vars.pve_mode = "memory"

  vars.pve_warning = 80
  vars.pve_critical = 90

  assign where host.vars.pve_host
}

apply Service "storage " for (storage => config in host.vars.pve_storage) {
  import "pve-service"

  vars += config

  vars.pve_mode = "storage"
  vars.pve_resource_name = storage
}

apply Service "pve-vm " for (vm => config in host.vars.virtual_machines) {
  import "pve-service"

  vars += config

  vars.pve_mode = "vm"
  vars.pve_resource_name = vm

  assign where host.vars.pve_host
}