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feat: enhance Kubernetes client with watch functionality (#1667)

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* feat: enhance Kubernetes client with watch functionality

* refactor: simplify watch event handling in Kubernetes client example

* refactor: update Kubernetes watch functionality to use new event handling methods and add async enumerable support

* fix

* fix

* fix: correct usage of Pod list items in client example and update Obsolete attribute formatting

* fix: update client example to use correct Pod list method and improve Obsolete attribute formatting

* refactor: enhance type resolution for list items in TypeHelper by adding TryGetItemTypeFromSchema method

* feat: mark Watch methods as obsolete to prepare for future deprecation

* fix

* refactor: update WatcherExt class to internal and remove obsolete attributes; improve example method signature in Program.cs

* refactor: change WatcherExt class from internal to public and mark methods as obsolete for future deprecation
This commit is contained in:
Qing Long
2025-10-12 06:10:53 +08:00
committed by GitHub
parent ca5d9f4793
commit 6d27bd900b
9 changed files with 647 additions and 90 deletions
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15
examples/clientset/Program.cs
View File

@@ -1,7 +1,6 @@
// See https://aka.ms/new-console-template for more information
using k8s;
using k8s.ClientSets;
using k8s;
using k8s.Models;
using k8s.ClientSets;
using System.Threading.Tasks;
namespace clientset
@@ -13,7 +12,7 @@ namespace clientset
var config = KubernetesClientConfiguration.BuildConfigFromConfigFile();
var client = new Kubernetes(config);
ClientSet clientSet = new ClientSet(client);
var clientSet = new ClientSet(client);
var list = await clientSet.CoreV1.Pod.ListAsync("default").ConfigureAwait(false);
foreach (var item in list)
{
@@ -22,6 +21,12 @@ namespace clientset
var pod = await clientSet.CoreV1.Pod.GetAsync("test", "default").ConfigureAwait(false);
System.Console.WriteLine(pod?.Metadata?.Name);
var watch = clientSet.CoreV1.Pod.WatchListAsync("default");
await foreach (var (_, item) in watch.ConfigureAwait(false))
{
System.Console.WriteLine(item.Metadata.Name);
}
}
}
}
}

11
examples/watch/Program.cs
View File

@@ -1,5 +1,4 @@
using k8s;
using k8s.Models;
using System;
using System.Threading;
using System.Threading.Tasks;
@@ -8,9 +7,10 @@ var config = KubernetesClientConfiguration.BuildConfigFromConfigFile();
IKubernetes client = new Kubernetes(config);
var podlistResp = client.CoreV1.ListNamespacedPodWithHttpMessagesAsync("default", watch: true);
var podlistResp = client.CoreV1.WatchListNamespacedPodAsync("default");
// C# 8 required https://docs.microsoft.com/en-us/archive/msdn-magazine/2019/november/csharp-iterating-with-async-enumerables-in-csharp-8
await foreach (var (type, item) in podlistResp.WatchAsync<V1Pod, V1PodList>().ConfigureAwait(false))
await foreach (var (type, item) in podlistResp.ConfigureAwait(false))
{
Console.WriteLine("==on watch event==");
Console.WriteLine(type);
@@ -22,8 +22,7 @@ await foreach (var (type, item) in podlistResp.WatchAsync<V1Pod, V1PodList>().Co
void WatchUsingCallback(IKubernetes client)
#pragma warning restore CS8321 // Remove unused private members
{
var podlistResp = client.CoreV1.ListNamespacedPodWithHttpMessagesAsync("default", watch: true);
using (podlistResp.Watch<V1Pod, V1PodList>((type, item) =>
using (var podlistResp = client.CoreV1.WatchListNamespacedPod("default", onEvent: (type, item) =>
{
Console.WriteLine("==on watch event==");
Console.WriteLine(type);
@@ -37,4 +36,4 @@ void WatchUsingCallback(IKubernetes client)
Console.CancelKeyPress += (sender, eventArgs) => ctrlc.Set();
ctrlc.Wait();
}
}
}