Files
kubeshark/shared/kubernetes/utils.go
M. Mert Yıldıran 0eb7883a47 Rename the project to Kubeshark (#1226)
* Rename `mizu` to `kubeshark`

* Rename `up9inc` to `kubeshark`

* Change the logo, title, motto and the main color

* Replace the favicon

* Update the docs link

* Change the copyright text in C files

* Remove a comment

* Rewrite the `README.md` and update the logo and screenshots used in it

* Add a `TODO`

* Fix the grammar

* Fix the bottom text in the filtering guide

* Change the Docker Hub username of cross-compilation intermediate images

* Add an install script

* Fix `docker/login-action` in the CI

* Delete `build-custom-branch.yml` GitHub workflow

* Update `README.md`

* Remove `install.sh`

* Change the motto back to "Traffic viewer for Kubernetes"
2022-11-19 11:13:15 +03:00

96 lines
2.5 KiB
Go

package kubernetes
import (
"regexp"
"github.com/kubeshark/kubeshark/shared"
core "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
func GetNodeHostToTappedPodsMap(tappedPods []core.Pod) shared.NodeToPodsMap {
nodeToTappedPodMap := make(shared.NodeToPodsMap)
for _, pod := range tappedPods {
minimizedPod := getMinimizedPod(pod)
existingList := nodeToTappedPodMap[pod.Spec.NodeName]
if existingList == nil {
nodeToTappedPodMap[pod.Spec.NodeName] = []core.Pod{minimizedPod}
} else {
nodeToTappedPodMap[pod.Spec.NodeName] = append(nodeToTappedPodMap[pod.Spec.NodeName], minimizedPod)
}
}
return nodeToTappedPodMap
}
func getMinimizedPod(fullPod core.Pod) core.Pod {
return core.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: fullPod.Name,
Namespace: fullPod.Namespace,
},
Status: core.PodStatus{
PodIP: fullPod.Status.PodIP,
ContainerStatuses: getMinimizedContainerStatuses(fullPod),
},
}
}
func getMinimizedContainerStatuses(fullPod core.Pod) []core.ContainerStatus {
result := make([]core.ContainerStatus, len(fullPod.Status.ContainerStatuses))
for i, container := range fullPod.Status.ContainerStatuses {
result[i] = core.ContainerStatus{
ContainerID: container.ContainerID,
}
}
return result
}
func excludeKubesharkPods(pods []core.Pod) []core.Pod {
kubesharkPrefixRegex := regexp.MustCompile("^" + KubesharkResourcesPrefix)
nonKubesharkPods := make([]core.Pod, 0)
for _, pod := range pods {
if !kubesharkPrefixRegex.MatchString(pod.Name) {
nonKubesharkPods = append(nonKubesharkPods, pod)
}
}
return nonKubesharkPods
}
func getPodArrayDiff(oldPods []core.Pod, newPods []core.Pod) (added []core.Pod, removed []core.Pod) {
added = getMissingPods(newPods, oldPods)
removed = getMissingPods(oldPods, newPods)
return added, removed
}
//returns pods present in pods1 array and missing in pods2 array
func getMissingPods(pods1 []core.Pod, pods2 []core.Pod) []core.Pod {
missingPods := make([]core.Pod, 0)
for _, pod1 := range pods1 {
var found = false
for _, pod2 := range pods2 {
if pod1.UID == pod2.UID {
found = true
break
}
}
if !found {
missingPods = append(missingPods, pod1)
}
}
return missingPods
}
func GetPodInfosForPods(pods []core.Pod) []*shared.PodInfo {
podInfos := make([]*shared.PodInfo, 0)
for _, pod := range pods {
podInfos = append(podInfos, &shared.PodInfo{Name: pod.Name, Namespace: pod.Namespace, NodeName: pod.Spec.NodeName})
}
return podInfos
}