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exporter.go
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exporter.go
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package controller
import (
"math"
"sync"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/klog/v2"
kubeovnv1 "github.com/kubeovn/kube-ovn/pkg/apis/kubeovn/v1"
)
var registerMetricsOnce sync.Once
// registerSubnetMetrics register subnet metrics
func (c *Controller) registerSubnetMetrics() {
registerMetricsOnce.Do(func() {
registerMetrics()
})
}
// resyncSubnetMetrics start to update subnet metrics
func (c *Controller) resyncSubnetMetrics() {
c.exportSubnetMetrics()
}
func (c *Controller) exportSubnetMetrics() bool {
subnets, err := c.subnetsLister.List(labels.Everything())
if err != nil {
klog.Errorf("failed to list subnet, %v", err)
return false
}
for _, subnet := range subnets {
c.exportSubnetAvailableIPsGauge(subnet)
c.exportSubnetUsedIPsGauge(subnet)
}
return true
}
func (c *Controller) exportSubnetAvailableIPsGauge(subnet *kubeovnv1.Subnet) {
var availableIPs float64
if subnet.Spec.Protocol == kubeovnv1.ProtocolIPv4 {
availableIPs = subnet.Status.V4AvailableIPs
} else if subnet.Spec.Protocol == kubeovnv1.ProtocolIPv6 {
availableIPs = subnet.Status.V6AvailableIPs
} else {
availableIPs = math.Min(subnet.Status.V4AvailableIPs, subnet.Status.V6AvailableIPs)
}
metricSubnetAvailableIPs.WithLabelValues(subnet.Name, subnet.Spec.Protocol, subnet.Spec.CIDRBlock).Set(availableIPs)
}
func (c *Controller) exportSubnetUsedIPsGauge(subnet *kubeovnv1.Subnet) {
var usingIPs float64
if subnet.Spec.Protocol == kubeovnv1.ProtocolIPv6 {
usingIPs = subnet.Status.V6UsingIPs
} else {
usingIPs = subnet.Status.V4UsingIPs
}
metricSubnetUsedIPs.WithLabelValues(subnet.Name, subnet.Spec.Protocol, subnet.Spec.CIDRBlock).Set(usingIPs)
}