Longhorn on Support Tools

How to Recover Longhorn Volume Data from a Single Replica in RKE2 Kubernetes

Fri, 11 Apr 2025 00:00:00 -0500

When disaster strikes and your entire RKE2 cluster or Longhorn control plane becomes unavailable, you can still recover critical data from a single Longhorn volume replica using a static pod definition. This emergency recovery method works even when the Kubernetes API server is completely offline and Docker is not available on your RKE2 nodes.

Introduction to Longhorn Basics

Thu, 09 Jan 2025 00:00:00 -0500

Longhorn Basics: Introduction Guide

Welcome to the Longhorn Basics course. This guide is designed to help you navigate the key concepts, agenda, and prerequisites for understanding and using Longhorn effectively.

Setting the Stage

Before diving into Longhorn, let’s set some context for this course. We will cover:

The purpose of this course.
The target audience.
The topics included.

Course Context

This course focuses on Longhorn, Rancher’s cloud-native distributed block storage solution for Kubernetes. It will include:

Longhorn

Thu, 09 Jan 2025 00:00:00 -0500

Welcome to our comprehensive Longhorn training series. Learn how to deploy, manage, and scale Longhorn storage for Kubernetes clusters through our detailed guides and tutorials.

Core Concepts

Basics of Longhorn: Introduction to Longhorn and its core concepts
Longhorn Architecture: Deep dive into Longhorn’s components and design
Lab Setup Guide: Setting up your environment for hands-on practice

Implementation

Installation Guide: Step-by-step installation process
Using Volumes: Working with Longhorn volumes
Upgrade Guide: Safely upgrading Longhorn clusters

Advanced Topics

Advanced Operations: Advanced features and performance tuning
Troubleshooting Guide: Comprehensive troubleshooting and recovery procedures

Best Practices

Performance optimization: Tuning Longhorn for optimal performance
High Availability Configuration: Configuring Longhorn for high availability
Backup and Disaster Recovery: Implementing backup and recovery strategies
Monitoring and Maintenance: Setting up monitoring and routine maintenance

Each section includes practical examples, configuration samples, and best practices to help you effectively implement and manage Longhorn in your Kubernetes environment.

Upgrading Longhorn

Mon, 06 Jan 2025 00:00:00 -0500

In this section of the Longhorn Basics course, we will cover the steps for upgrading Longhorn, including planning, the upgrade process, and rollback options.

Using Longhorn Volumes in Kubernetes

Sun, 05 Jan 2025 00:00:00 -0500

In this section of the Longhorn Basics course, we will cover using Longhorn volumes in Kubernetes, including their types, usage, and backup/restore functionalities.

Installing Longhorn: A Comprehensive Guide

Sat, 04 Jan 2025 00:00:00 -0500

In this section of the Longhorn Basics course, we explore the different ways to install Longhorn, Rancher’s cloud-native distributed block storage solution for Kubernetes.

Understanding Longhorn Architecture

Fri, 03 Jan 2025 00:00:00 -0500

In this section of the Longhorn Basics course, we will delve into the architecture of Longhorn, exploring its components and understanding the data flow.

Setting Up the Lab Environment for Longhorn Basics

Thu, 02 Jan 2025 00:00:00 -0500

Welcome to the Longhorn Basics course! This section provides step-by-step instructions for setting up the lab environment required to follow this course effectively.

Longhorn Advanced Operations