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resource.go
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resource.go
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package util
import (
"k8s.io/api/core/v1"
"k8s.io/client-go/kubernetes"
log "github.com/sirupsen/logrus"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
var (
allServices = map[string][]v1.Service{}
allPods = map[string][]v1.Pod{}
)
func AcquireAllPods(namespace string, client *kubernetes.Clientset) ([]v1.Pod, error) {
if podsCache, ok := allPods[namespace]; ok {
return podsCache, nil
}
pods := []v1.Pod{}
podList, err := client.CoreV1().Pods(namespace).List(metav1.ListOptions{})
if err != nil {
return pods, err
}
for _, pod := range podList.Items {
pods = append(pods, pod)
}
allPods[namespace] = pods
log.Debugf("Pods in %s: %++v", namespace, allPods[namespace])
return pods, nil
}
func AcquireServingServices(namespace string, client *kubernetes.Clientset) ([]v1.Service, error) {
if serviceCache, ok := allServices[namespace]; ok {
return serviceCache, nil
}
serviceList, err := client.CoreV1().Services(namespace).List(metav1.ListOptions{
LabelSelector: "servingName",
})
if err != nil {
log.Errorf("Failed to list services due to %v", err)
return []v1.Service{}, err
}
allServices[namespace] = serviceList.Items
log.Debugf("Services in %s: %++v", namespace, allServices[namespace])
return allServices[namespace], nil
}