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Added configmap watcher #7

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43 changes: 43 additions & 0 deletions kubernetes/configmap_watcher.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,43 @@
package kubernetes

import (
"context"
"fmt"
"log"
"slices"

"github.com/SwaDeshiTech/kubesync/config"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/watch"
"k8s.io/client-go/kubernetes"
)

type ConfigMapWatcher struct {
ClientSet *kubernetes.Clientset
}

func (configMapWatcher *ConfigMapWatcher) Watcher() {
// Watch for changes in namespaces
watcher, err := configMapWatcher.ClientSet.CoreV1().ConfigMaps("").Watch(context.Background(), metav1.ListOptions{})
if err != nil {
log.Fatal(err)
}

// Loop through the watch events
for {
event := <-watcher.ResultChan()
switch event.Type {
case watch.Added:
namespaceName := event.Object.(*v1.Namespace).Name
if slices.Contains(config.GetConfig().WhitelistedNamespace, namespaceName) {
fmt.Printf("New namespace created: %s\n", namespaceName)
syncResource := SyncResource{
DestinationNameSpace: namespaceName,
SourceNameSpace: "kubesync",
}
syncResource.SyncResources()
}
}
}
}