Vero Monitor Service

Description

The host_resource probe collects host-level resource metrics: CPU usage, memory usage, disk utilization, disk I/O, and network traffic. This is a pure collector — it emits gauge/counter metrics only, no check result. Requires the HostAdapter platform adapter — supported on Linux and Windows only. If the adapter is unavailable on the current platform, the probe is skipped at construction.

Config fields

Field	Type	Required	Default	Description
`type`	`string`	Yes	—	Must be `"host_resource"`
`collectCpu`	`bool`	No	`false`	Enable CPU usage percent collection
`collectMemory`	`bool`	No	`false`	Enable memory usage percent collection
`collectDisk`	`bool`	No	`false`	Enable disk usage percent collection per mount point
`collectDiskIo`	`bool`	No	`false`	Enable disk read/write bytes collection per device
`collectNetwork`	`bool`	No	`false`	Enable network rx/tx bytes, errors, drops collection per interface
`diskMounts`	`string[]`	No	all mounts	Mount points to monitor. Empty = all
`diskDevices`	`string[]`	No	all devices	Disk devices for I/O monitoring. Empty = all real block devices (skips loop/ram)
`networkInterfaces`	`string[]`	No	all interfaces	Network interfaces to monitor. Empty = all

At least one collect* flag must be enabled, otherwise the probe fails at construction.

Metrics

Metric	Type	Unit	Labels	Condition
`vms.host.cpu.usage_percent`	gauge	percent	—	`collectCpu = true`
`vms.host.memory.usage_percent`	gauge	percent	—	`collectMemory = true`
`vms.host.disk.usage_percent`	gauge	percent	`mount`	`collectDisk = true`
`vms.host.disk.read_bytes`	counter	bytes	`device`	`collectDiskIo = true`
`vms.host.disk.write_bytes`	counter	bytes	`device`	`collectDiskIo = true`
`vms.host.network.rx_bytes`	counter	bytes	`iface`	`collectNetwork = true`
`vms.host.network.tx_bytes`	counter	bytes	`iface`	`collectNetwork = true`
`vms.host.network.rx_errors`	counter	—	`iface`	`collectNetwork = true`
`vms.host.network.rx_drops`	counter	—	`iface`	`collectNetwork = true`
`vms.host.network.tx_errors`	counter	—	`iface`	`collectNetwork = true`
`vms.host.network.tx_drops`	counter	—	`iface`	`collectNetwork = true`
`vms.host.uptime_seconds`	gauge	seconds	—	Always collected when supported

Example config

{
  "type": "host_resource",
  "collectCpu": true,
  "collectMemory": true,
  "collectDisk": true,
  "collectDiskIo": true,
  "collectNetwork": true,
  "diskMounts": ["/", "/data"],
  "diskDevices": ["sda", "nvme0n1"],
  "networkInterfaces": ["eth0", "bond0"]
}

Minimal config:

{
  "type": "host_resource",
  "collectCpu": true,
  "collectMemory": true
}

Notes

If one metric family fails (e.g. nonexistent disk mount), the probe continues collecting other families and reports degraded status rather than failing entirely.
Counter metrics (disk I/O, network) are cumulative since boot — downstream computes rates by differencing consecutive samples.

Overview

Setup Guideline

VMS Agent Probe Config

Operations

Probe: host_resource

Description

Config fields

Metrics

Example config

Notes

​Description

​Config fields

​Metrics

​Example config

​Notes

Description

Config fields

Metrics

Example config

Notes