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daemonset_tools.go
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daemonset_tools.go
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package main
import (
"log"
"time"
"github.com/forbearing/k8s"
"github.com/forbearing/k8s/daemonset"
corev1 "k8s.io/api/core/v1"
)
func DaemonSet_Tools() {
handler, err := daemonset.New(ctx, kubeconfig, namespace)
if err != nil {
panic(err)
}
defer cleanup(handler)
handler.Apply(filename)
k8s.ApplyF(ctx, kubeconfig, filename2)
log.Println(handler.IsReady(name)) // true
log.Println(handler.IsReady(name2)) // true
handler.WaitReady(name)
handler.WaitReady(name2)
log.Println(handler.IsReady(name)) // true
log.Println(handler.IsReady(name2)) // true
ds, err := handler.Get(name)
if err != nil {
panic(err)
}
ds2, err := handler.Get(name2)
if err != nil {
panic(err)
}
pods1, err := handler.GetPods(name)
checkErr("GetPods", outputPods(pods1), err)
pods2, err := handler.GetPods(ds)
checkErr("GetPods", outputPods(pods2), err)
pvList1, err := handler.GetPV(name2)
checkErr("GetPV", pvList1, err)
pvList2, err := handler.GetPV(ds2)
checkErr("GetPV", pvList2, err)
log.Println()
getByName := func() {
log.Println("===== Get DaemonSet By Name")
begin := time.Now()
pvcList, err := handler.GetPVC(name)
checkErr("GetPVC", pvcList, err)
numDesired, err := handler.NumDesired(name)
checkErr("NumDesired", numDesired, err)
numCurrent, err := handler.NumCurrent(name)
checkErr("NumCurrent", numCurrent, err)
numReady, err := handler.NumReady(name)
checkErr("NumReady", numReady, err)
numAvailable, err := handler.NumAvailable(name)
checkErr("NumAvailable", numAvailable, err)
age, err := handler.GetAge(name)
checkErr("GetAge", age, err)
containers, err := handler.GetContainers(name)
checkErr("GetContainers", containers, err)
images, err := handler.GetImages(name)
checkErr("GetImages", images, err)
end := time.Now()
log.Println("===== Get DaemonSet By Name Cost Time:", end.Sub(begin))
log.Println()
}
getByObj := func() {
log.Println("===== Get DaemonSet By Object")
begin := time.Now()
pvcList, err := handler.GetPVC(ds)
checkErr("GetPVC", pvcList, err)
numDesired, err := handler.NumDesired(ds)
checkErr("NumDesired", numDesired, err)
numCurrent, err := handler.NumCurrent(ds)
checkErr("NumCurrent", numCurrent, err)
numReady, err := handler.NumReady(ds)
checkErr("NumReady", numReady, err)
numAvailable, err := handler.NumAvailable(ds)
checkErr("NumAvailable", numAvailable, err)
age, err := handler.GetAge(ds)
checkErr("GetAge", age, err)
containers, err := handler.GetContainers(ds)
checkErr("GetContainers", containers, err)
images, err := handler.GetImages(ds)
checkErr("GetImages", images, err)
end := time.Now()
log.Println("===== Get DaemonSet By Object Cost Time:", end.Sub(begin))
}
getByName()
getByObj()
// Output:
//2022/07/11 17:44:04 false
//2022/07/11 17:44:04 false
//2022/07/11 17:44:53 true
//2022/07/11 17:44:53 true
//2022/07/11 17:44:53 GetPods success: [myds-7dl8h myds-dbf48 myds-hcl4n myds-k8xq4 myds-mcfch myds-qttkb]
//2022/07/11 17:44:53 GetPods success: [myds-7dl8h myds-dbf48 myds-hcl4n myds-k8xq4 myds-mcfch myds-qttkb]
//2022/07/11 17:44:53 GetPV success: [pvc-639c2572-3a65-4a50-99ea-44854f04d911 pvc-d0125122-d8bc-4e57-b5c0-95ee0edde841]
//2022/07/11 17:44:53 GetPV success: [pvc-639c2572-3a65-4a50-99ea-44854f04d911 pvc-d0125122-d8bc-4e57-b5c0-95ee0edde841]
//2022/07/11 17:44:53
//2022/07/11 17:44:53 ===== Get DaemonSet By Name
//2022/07/11 17:44:53 GetPVC success: []
//2022/07/11 17:44:53 NumDesired success: 6
//2022/07/11 17:44:53 NumCurrent success: 6
//2022/07/11 17:44:53 NumReady success: 6
//2022/07/11 17:44:53 NumAvailable success: 6
//2022/07/11 17:44:53 GetAge success: 50.860946s
//2022/07/11 17:44:54 GetContainers success: [nginx]
//2022/07/11 17:44:54 GetImages success: [nginx]
//2022/07/11 17:44:54 ===== Get DaemonSet By Name Cost Time: 866.449419ms
//2022/07/11 17:44:54
//2022/07/11 17:44:54 ===== Get DaemonSet By Object
//2022/07/11 17:44:54 GetPVC success: []
//2022/07/11 17:44:54 NumDesired success: 6
//2022/07/11 17:44:54 NumCurrent success: 6
//2022/07/11 17:44:54 NumReady success: 6
//2022/07/11 17:44:54 NumAvailable success: 6
//2022/07/11 17:44:54 GetAge success: 51.260919s
//2022/07/11 17:44:54 GetContainers success: [nginx]
//2022/07/11 17:44:54 GetImages success: [nginx]
//2022/07/11 17:44:54 ===== Get DaemonSet By Object Cost Time: 27.214µs
}
func outputPods(podList []*corev1.Pod) []string {
if podList == nil {
return nil
}
var pl []string
for _, pod := range podList {
pl = append(pl, pod.Name)
}
return pl
}