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Kubernetes C# client for .NET Framework

Home Page: https://www.nuget.org/packages/Kubernetes.DotNet

License: MIT License

Shell 0.02% Batchfile 0.01% C# 99.97% Dockerfile 0.01%

kubernetes-api dotnet csharp kubernetes

kubernetes.dotnet's Introduction

Kubernetes.DotNet

The C# client SDK for Kubernetes API spec on .NET 4.5+ platform.

Usage

Create client using kube config

Create a client instance using configuration parsed from %USERPROFILE%\.kube\config with specified authentication type.

// Initialize client with default kube config using SSL authentication
IKubernetesClient k8sClient = new KubeConfigClientConfiguration().CreateClient(AuthType.SSLAuth);

Create a client using custom path to kubeconfig file.

string configPath = "path\\to\\kube\\config";
IKubernetesClient k8sClient = new KubeConfigClientConfiguration(configPath).CreateClient(AuthType.SSLAuth);

Create client using custom config

Create a client instance by extending IClientConfiguration for custom configuration and authentication type.

// Initialize client with user provided SSL configuration
IKubernetesClient k8sClient = new SslClientConfiguration
{
    ClusterUri = new Uri("https://your-k8s-cluster.cloudapp.azure.com"),
    Certificate = new X509Certificate2("path\\to\\cert.pfx", "password")
}.CreateClient();

List all Pods in Namespace

V1PodList podList = k8sClient.CoreApi.ListNamespacedPod("default");
foreach (V1Pod pod in podList.Items)
    Console.WriteLine($"Pod name={pod.Metadata.Name}, object={pod.ToString()}");

Create a Pod in Namespace

k8sClient.CoreApi.CreateNamespacedPod(
    "default",
    new V1Pod(
        Metadata: new V1ObjectMeta(Name: "iis-example"),
        Spec: new V1PodSpec(
            Containers: new List<V1Container>
            {
                new V1Container(
                    Image: "microsoft/iis:nanoserver",
                    Name: "iis",
                    Ports: new List<V1ContainerPort> { new V1ContainerPort(ContainerPort: 80) })
            })
        )
    );

Development

Generate C# client using docker container. Image definition in scripts/Dockerfile.

Dependencies

BouncyCastle
Newtonsoft.Json
RestSharp
YamlDotNet

Build image

docker build -t k8s-client-gen .

K8S_BRANCH_VERSION: Kubernetes API version, i.e. "release-1.7".
GEN_OP_TYPE: Type of code gen operation, i.e. "create" or "update".

Generate project from empty state

docker run -e "K8S_BRANCH_VERSION=release-1.7" -e "GEN_OP_TYPE=create" -v /path/to/code/root/:/usr/src/app/gen/ k8s-client-gen

Update generated API spec only

docker run -e "K8S_BRANCH_VERSION=release-1.7" -e "GEN_OP_TYPE=update" -v /path/to/code/root/:/usr/src/app/gen/ k8s-client-gen

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kubernetes.dotnet's Issues

Add support to verify CA certificate

DotNet general protection ip regularly Kubernetes

I been experinecing an issue on kubernetes 1.10.3 running a dotnet application. In dmesg that comes with the core right before the containers crash this is this in the logs:
[11085.488191] traps: dotnet[25507] general protection ip:7ff4fbdf7529 sp:7fffc1dcec30 error:0 in libc-2.24.so[7ff4fbdc3000+195000]
[11089.047591] traps: dotnet[25686] general protection ip:7f9b2abd5529 sp:7ffcd05dad50 error:0 in libc-2.24.so[7f9b2aba1000+195000]
[11105.793408] traps: dotnet[25968] general protection ip:7fba1b462529 sp:7ffedfa79d00 error:0 in libc-2.24.so[7fba1b42e000+195000]
[11135.857805] traps: dotnet[26332] general protection ip:7fb697600529 sp:7ffe3f358aa0 error:0 in libc-2.24.so[7fb6975cc000+195000]
[11192.790916] traps: dotnet[27056] general protection ip:7f7bcf300529 sp:7ffe9ebc2f60 error:0 in libc-2.24.so[7f7bcf2cc000+195000]
[11286.072392] traps: dotnet[28148] general protection ip:7ffa5585a529 sp:7fffe0022ba0 error:0 in libc-2.24.so[7ffa55826000+195000]
[11410.006211] cbr0: port 16(vethd38bbb18) entered disabled state
[11410.015121] device vethd38bbb18 left promiscuous mode
[11410.015126] cbr0: port 16(vethd38bbb18) entered disabled state
[11449.848218] traps: dotnet[29897] general protection ip:7fedffa3a529 sp:7ffc68eb8690 error:0 in libc-2.24.so[7fedffa06000+195000]
[11765.713298] traps: dotnet[677] general protection ip:7f4e1d45d529 sp:7ffcc67081c0 erro
[292414.521699] dotnet D 0 15114 32343 0x00000000
[292414.521703] Call Trace:
[292414.521713] __schedule+0x3d6/0x8b0
[292414.521716] schedule+0x36/0x80
[292414.521718] rwsem_down_read_failed+0x10a/0x170
[292414.521722] ? __handle_mm_fault+0xd3c/0x11e0
[292414.521724] call_rwsem_down_read_failed+0x18/0x30
[292414.521726] ? call_rwsem_down_read_failed+0x18/0x30
[292414.521727] down_read+0x20/0x40
[292414.521731] __do_page_fault+0x465/0x500
[292414.521734] ? SyS_futex+0x7f/0x180
[292414.521736] do_page_fault+0x2e/0xf0
[292414.521738] ? page_fault+0x2f/0x50
[292414.521740] page_fault+0x45/0x50
[292414.521742] RIP: 0033:0x7fecd51f8485
[292414.521743] RSP: 002b:00007fecd31b84c0 EFLAGS: 00010206
[292414.521745] RAX: 00007fec439d20f8 RBX: 0000000000000001 RCX: 00007fec439d20c8
[292414.521745] RDX: 0000000000000010 RSI: 0000000000000020 RDI: 00007fecd31b8580
[292414.521746] RBP: 00007fecd31b8600 R08: 0000000000000000 R09: 00007fecd31b9400
[292414.521747] R10: 00007fec5bf0d168 R11: 000000000000000d R12: 0000000000000002
[292414.521748] R13: 00007fec5b7ae750 R14: 00007fec5ce4f160 R15: 0000000000000000
[292414.521750] NMI backtrace for cpu 0
[292414.521753] CPU: 0 PID: 17 Comm: khungtaskd Not tainted 4.15.0-1025-azure #2616.04.1-Ubuntu
[292414.521754] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090007 06/02/2017
[292414.521754] Call Trace:
[292414.521759] dump_stack+0x63/0x82
[292414.521761] nmi_cpu_backtrace+0xcb/0xd0
[292414.521765] ? irq_force_complete_move+0x90/0x90
[292414.521767] nmi_trigger_cpumask_backtrace+0xef/0x140
[292414.521769] arch_trigger_cpumask_backtrace+0x19/0x20
[292414.521771] watchdog+0x2bf/0x340
[292414.521776] kthread+0x105/0x140
[292414.521778] ? reset_hung_task_detector+0x20/0x20
[292414.521780] ? kthread_destroy_worker+0x50/0x50
[292414.521781] ret_from_fork+0x35/0x40
[292414.521784] Kernel panic - not syncing: hung_task: blocked tasks
[292414.525625] CPU: 0 PID: 17 Comm: khungtaskd Not tainted 4.15.0-1025-azure #2616.04.1-Ubuntu
the version of libc is 2.24. Would this be more related to code or a problem with libc?

Error: "Property 'namespace' not found on type 'Kubernetes.DotNet.Config.ContextData'."

Hello,
I am trying to follow your more basic example. Getting configuration from .kube\config (on a Windows 10 OS).

But I always get this error:
"Property 'namespace' not found on type 'Kubernetes.DotNet.Config.ContextData'."

Anyway all my 'kubectl' commands run fine againts my selected/default namespace.

I think it is a problem of my own, but I cannot find it out how to avoid it on the startup guide.
Any idea?
Thanks.

v0.1: Support dotnet framework 4.5

For v0.1 Support dotnet framework 4.5

RestSharp issues and incompatibility with dotnet core: #664
HttpClient lib curl issue on OSX: #10947

Switch to Travis CI

Split integration tests to different project

DeletePod response returns V1Pod object instead of V1Status

Issue tracked here: kubernetes/kubernetes#59501

Kubernetes.DotNet.Client.ApiException: Error calling ListNamespacedPod: The request was aborted: Could not create SSL/TLS secure channel.

I cannot get this to work using the code below and I'm wondering if anyone could help me. The contents of the filePath file is a copy & paste of the contents of my own ...\.kube\config file.

var k8Client = new KubeConfigClientConfiguration(filePath).CreateClient(AuthType.SSLAuth);
var podsList = k8Client.CoreApi.ListNamespacedPod("default");

The exception call stack is:

Kubernetes.DotNet.Client.ApiException: Error calling ListNamespacedPod: The request was aborted: Could not create SSL/TLS secure channel.
   at Kubernetes.DotNet.Api.Core_v1Api.ListNamespacedPodWithHttpInfo(String _namespace, String pretty, String fieldSelector, Nullable`1 includeUninitialized, String labelSelector, String resourceVersion, Nullable`1 timeoutSeconds, Nullable`1 watch)
   at Kubernetes.DotNet.Api.Core_v1Api.ListNamespacedPod(String _namespace, String pretty, String fieldSelector, Nullable`1 includeUninitialized, String labelSelector, String resourceVersion, Nullable`1 timeoutSeconds, Nullable`1 watch)
   at ScaleoutService.ScaleoutService._GetCurrentInstancesCount() in C:\Users\edaroczy\OneDrive - BoldIQ, Inc\Documents\projects\NetJets\ScaleoutService\ScaleoutService.IScaleoutService.cs:line 229

I'm making this call to an Azure Kubernetes Service instance from a .Net 4.5.2 microservice running within Service Fabric.

The assemblies that I'm using are:

  <package id="BouncyCastle" version="1.8.5" targetFramework="net452" />
  <package id="Kubernetes.DotNet" version="1.0.62" targetFramework="net452" />
  <package id="Newtonsoft.Json" version="10.0.1" targetFramework="net452" />
  <package id="RestSharp" version="105.1.0" targetFramework="net452" />
  <package id="YamlDotNet" version="4.2.2" targetFramework="net452" />

IKubernetesClient
KubernetesClient
Config/*