📌 Welcome to "Longhorn in Action: A Mini Course on Kubernetes Storage Solutions"! In this hands-on tutorial, we'll walk you through everything you need to know about using Longhorn to manage persistent storage on Kubernetes. This mini-course will cover everything from architecture to backup and restore scenarios for real-world applications.
First, we dive into Longhorn's architecture to understand how it works in a Kubernetes environment. Next, we walk through the installation of Longhorn on a live Kubernetes cluster. Afterward, we set up a real application with Longhorn volumes, and get familiar with essential features that Longhorn offers, such as:
Replicas: How to manage and update volume replicas for redundancy.
Data Locality: Ensuring data is placed efficiently to reduce latency.
Replica Auto Balance: Automatically distributing replicas across the cluster.
Snapshot Data Integrity: Protecting the integrity of your data through snapshots.
Trim Filesystem: Improving storage efficiency by trimming unused blocks in the filesystem.
Node/Disk/Zone Level Soft Anti-Affinity: Optimizing volume placement for fault tolerance.
Finally, we dive into a real-world backup and restore scenario, where we simulate data destruction and then restore it from a Longhorn volume backup, showcasing Longhorn's powerful backup and restore capabilities.
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⏰ Timestamps for Easy Navigation:
00:00 Overview of Longhorn Architecture
03:51 Installing Longhorn on Kubernetes Cluster
12:55 Setting Up a Real Application with Persistent Volumes
19:13 Updating Volume Replicas
21:44 Understanding Data Locality in Longhorn Volumes
23:10 Understanding Snapshot Data Integrity in Longhorn Volumes
25:17 Understanding Replicas Auto Balance in Longhorn Volumes
27:30 Understanding Trimming in Longhorn Volumes
28:42 Understanding Node/Disk/Zone Level Soft Anti-Affinity in Longhorn Volumes
32:22 Backup and Restore with Longhorn: A Real-World Scenario
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