112 lines
2.9 KiB
Go
112 lines
2.9 KiB
Go
package metrics
|
|
|
|
import (
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"libvirt.org/go/libvirt"
|
|
)
|
|
|
|
var (
|
|
// Compute
|
|
libvirtNodeCPUUsage = prometheus.NewDesc(
|
|
prometheus.BuildFQName("libvirt", "node", "cpu_time_seconds_total"),
|
|
"CPU usage of node",
|
|
[]string{"hostname"},
|
|
nil)
|
|
|
|
libvirtNodeCPUTotal = prometheus.NewDesc(
|
|
prometheus.BuildFQName("libvirt", "node", "cpu_threads"),
|
|
"CPU usage of node",
|
|
[]string{"hostname"},
|
|
nil)
|
|
|
|
libvirtNodeMemoryUsageBytes = prometheus.NewDesc(
|
|
prometheus.BuildFQName("libvirt", "node", "memory_usage_bytes"),
|
|
"Memory usage of the node, in bytes.",
|
|
[]string{"hostname"},
|
|
nil)
|
|
|
|
libvirtNodeMemoryAvailableBytes = prometheus.NewDesc(
|
|
prometheus.BuildFQName("libvirt", "node", "memory_available_bytes"),
|
|
"Memory available of the node, in bytes.",
|
|
[]string{"hostname"},
|
|
nil)
|
|
|
|
libvirtNodeMemoryTotalBytes = prometheus.NewDesc(
|
|
prometheus.BuildFQName("libvirt", "node", "memory_total_bytes"),
|
|
"Memory total of the node, in bytes.",
|
|
[]string{"hostname"},
|
|
nil)
|
|
)
|
|
|
|
/*type AvgStat struct {
|
|
Load1 float64
|
|
Load5 float64
|
|
Load15 float64
|
|
}
|
|
|
|
func sysinfoAvgWithContext() (*AvgStat, error) {
|
|
var info syscall.Sysinfo_t
|
|
err := syscall.Sysinfo(&info)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
const si_load_shift = 16
|
|
return &AvgStat{
|
|
Load1: float64(info.Loads[0]) / float64(1<<si_load_shift),
|
|
Load5: float64(info.Loads[1]) / float64(1<<si_load_shift),
|
|
Load15: float64(info.Loads[2]) / float64(1<<si_load_shift),
|
|
}, nil
|
|
}*/
|
|
|
|
func CollectNode(conn *libvirt.Connect, ch chan<- prometheus.Metric, hostname string) error {
|
|
nodeInfo, _ := conn.GetNodeInfo()
|
|
nodeCPU, _ := conn.GetCPUStats(int(libvirt.NODE_CPU_STATS_ALL_CPUS), 0) // rate(libvirt_node_cpu_time_seconds_total[10s]) * 100
|
|
nodeMemory, _ := conn.GetMemoryStats(libvirt.NODE_MEMORY_STATS_ALL_CELLS, 0)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
libvirtNodeCPUUsage,
|
|
prometheus.CounterValue,
|
|
float64(nodeCPU.Kernel+nodeCPU.User+nodeCPU.Iowait)/1e9, // From nsec to sec
|
|
hostname,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
libvirtNodeCPUTotal,
|
|
prometheus.GaugeValue,
|
|
float64(nodeInfo.Sockets*nodeInfo.Cores*nodeInfo.Threads),
|
|
hostname,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
libvirtNodeMemoryAvailableBytes,
|
|
prometheus.GaugeValue,
|
|
float64(nodeMemory.Buffers+nodeMemory.Free+nodeMemory.Cached)*1024,
|
|
hostname,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
libvirtNodeMemoryUsageBytes,
|
|
prometheus.GaugeValue,
|
|
float64(nodeMemory.Total-(nodeMemory.Buffers+nodeMemory.Free+nodeMemory.Cached))*1024,
|
|
hostname,
|
|
)
|
|
|
|
ch <- prometheus.MustNewConstMetric(
|
|
libvirtNodeMemoryTotalBytes,
|
|
prometheus.GaugeValue,
|
|
float64(nodeMemory.Total)*1024,
|
|
hostname,
|
|
)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (e *LibvirtExporter) DescribeNode(ch chan<- *prometheus.Desc) {
|
|
ch <- libvirtNodeCPUUsage
|
|
ch <- libvirtNodeCPUTotal
|
|
ch <- libvirtNodeMemoryUsageBytes
|
|
ch <- libvirtNodeMemoryAvailableBytes
|
|
ch <- libvirtNodeMemoryTotalBytes
|
|
}
|