andredlam

NFS Server Setup on Ubuntu 24.04

This guide provides step-by-step instructions for setting up an NFS (Network File System) server on Ubuntu 24.04 LTS.

Table of Contents

• Prerequisites
• Installation
• Configuration
• Security
• Client Access

andredlam

Kubernetes Cluster Setup Guide

This guide walks you through setting up a 6-node Kubernetes cluster with 3 master nodes and 3 worker nodes for high availability on Ubuntu 24.04 LTS.

Prerequisites

Hardware Requirements

• 6 Virtual Machines (or physical machines)
• Master Nodes: Minimum 2 CPU cores, 4GB RAM, 20GB disk space each
• Worker Nodes: Minimum 2 CPU cores, 4GB RAM, 50GB disk space each

andredlam

ENV ?= dev
ENV_PATH := ./environments/$(ENV)
VALUES_FILE ?= $(ENV_PATH)/values/values.yaml

HELM_CHART_NAME := sample
HELM_CHART_PATH := ./sample
HELM_SUBCHART_PATH := $(HELM_CHART_PATH)/charts

# Cluster settings
ifeq ($(ENV),dev)

andredlam

Install Docker on Ubuntu

cat <<'EOF' >> install_docker.sh
sudo apt -y update

sudo apt -y install \
            ca-certificates \
            curl \
            gnupg \
            lsb-release

andredlam

ovs-ofctl - OpenFlow Control Utility

ovs-ofctl is a command-line utility that provides a direct interface to OpenFlow switches managed by Open vSwitch (OVS). It's one of the most important tools for managing, debugging, and monitoring OVS bridges and their flow tables.

Table of Contents

1. What is ovs-ofctl?
2. Key Functions
3. Flow Table Management
4. Switch Information and Statistics

andredlam

Scaling OVN/OVS in Large Environments

This guide provides comprehensive strategies and best practices for deploying and scaling OVN/OVS in large enterprise environments, covering thousands of nodes, tens of thousands of VMs, and complex multi-tenant scenarios.

Table of Contents

1. Architecture Overview
2. Scaling Challenges
3. Database Scaling
4. Control Plane Scaling

andredlam

KVM/QEMU Setup Guide for Ubuntu 24.04

Overview

This guide covers the complete setup of KVM (Kernel-based Virtual Machine) with QEMU and libvirt on Ubuntu 24.04 LTS. KVM provides near-native performance virtualization on Linux systems and is ideal for homelab environments.

Prerequisites

Hardware Requirements

andredlam

Vagrant Installation Guide for Ubuntu 24.04

Overview

Vagrant is a tool for building and managing virtual machine environments. This guide covers installation and setup on Ubuntu 24.04.

Prerequisites

• Ubuntu 24.04 LTS
• At least 4GB RAM (8GB+ recommended)

andredlam

OpenStack

Environment Requirements

• at least 64GB RAM
• at least 4 CPU cores
• at least 100GB disk space
• Ubuntu 24.04 or later
• KVM host with 2 interfaces
  • eno1 (management)
  • eno2 (data plane)