Excalibur.LeaderElection.Kubernetes 3.0.0-alpha.26

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher.
This is a prerelease version of Excalibur.LeaderElection.Kubernetes. 
dotnet add package Excalibur.LeaderElection.Kubernetes --version 3.0.0-alpha.26
                    


                    

                
NuGet\Install-Package Excalibur.LeaderElection.Kubernetes -Version 3.0.0-alpha.26
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Excalibur.LeaderElection.Kubernetes" Version="3.0.0-alpha.26" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Excalibur.LeaderElection.Kubernetes" Version="3.0.0-alpha.26" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Excalibur.LeaderElection.Kubernetes" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Excalibur.LeaderElection.Kubernetes --version 3.0.0-alpha.26
                    


                    

                
#r "nuget: Excalibur.LeaderElection.Kubernetes, 3.0.0-alpha.26"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Excalibur.LeaderElection.Kubernetes@3.0.0-alpha.26
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Excalibur.LeaderElection.Kubernetes&version=3.0.0-alpha.26&prerelease
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Excalibur.LeaderElection.Kubernetes&version=3.0.0-alpha.26&prerelease
                    


                            Install as a Cake Tool

Excalibur.LeaderElection.Kubernetes

Kubernetes implementation of distributed leader election using the Lease API.

Installation

dotnet add package Excalibur.LeaderElection.Kubernetes

Features

  • Native Kubernetes Lease API for cloud-native leader election
  • Automatic in-cluster configuration detection
  • Local development support via kubeconfig
  • Background hosted service for automatic leadership management
  • Graceful leadership transitions
  • Pod identity auto-detection
  • AOT-compatible with full Native AOT support

Usage

// Register Kubernetes leader election
services.AddExcaliburKubernetesLeaderElection(options =>
{
    options.Namespace = "my-namespace";
    options.LeaseName = "my-app-leader";
    options.LeaseDurationSeconds = 15;
    options.RenewIntervalMilliseconds = 5000;
});

// Or with hosted service for automatic management
services.AddExcaliburKubernetesLeaderElectionHostedService("order-processor");

Configuration Options

Option Default Description
Namespace auto-detect Kubernetes namespace
LeaseName {resource}-leader-election Lease resource name
CandidateId pod name Unique candidate identifier
LeaseDurationSeconds 15 Lease duration
RenewIntervalMilliseconds 5000 Lease renewal interval
RetryIntervalMilliseconds 2000 Acquisition retry interval
GracePeriodSeconds 5 Grace period before leader considered dead
StepDownWhenUnhealthy true Auto-release leadership when unhealthy

How It Works

Kubernetes Lease API provides native distributed locking:

  1. Create or update a Lease resource in the target namespace
  2. Holder identity and timestamps determine current leader
  3. Lease must be renewed before duration expires
  4. Failed renewal triggers leadership transition

RBAC Requirements

Your pod's service account needs Lease permissions:

apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: leader-election-role
rules:
- apiGroups: ["coordination.k8s.io"]
  resources: ["leases"]
  verbs: ["get", "watch", "list", "create", "update", "patch", "delete"]
  • Excalibur.LeaderElection - Core abstractions and InMemory implementation

License

This project is multi-licensed under:

See LICENSE for details.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
3.0.0-alpha.26 36 3/5/2026
3.0.0-alpha.19 49 2/26/2026