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Labenv Enterprise Linux
Published 11/2024
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz
Language: English | Size: 5.93 GB | Duration: 8h 51m
Setup VMs in a breeze on your local mini-cloud
What you'll learn
How to create a Linux virtualization host with enterprise Linux (Rocky or Alma).
How to use KVM, qemu and libvirt to enable the virtualization layer.
How to create Copy-On-Write enterprise Linux images.
Learn the first steps about Terraform (OpenTofu) and Cloud-init to provision VMs.
Learn the first steps about Ansible to configure VMs.
How to create a Python tool "labenv" to easily manage VMs.
How to use "labenv" by creating an Apache reverse proxy lab environment.
Requirements
Basic Linux knowledge. Students should feel comfortable on the bash command line and know a number of basic commands.
Students need a computer system, e.g. a NUC, on which Linux and the virtualization layer is installed.
Willingness to learn. Many topics are touched but not covered in detail. Hence many references are given.
Willingness to read. The course includes a course guide with step by step instructions and many appendices.
Description
In this course the student constructs a Linux virtualization host with standard technologies like KVM, qemu and libvirt. By creating Linux base images and using the provisioning tool Terraform the student learns how to quickly instantiate VMs. To ease access to the VMs, the student is introduced to Ansible for configuration management.The course material provides step by step instructions and some example sets of VMs, which we call "labenvs". Special care has been taken to make the course material usable as an instructions guide and as reference material. In the appendices extra information is provided about different topics and the references section guides the student to many sources on the Internet.Almost all of the commands are easily pasteable into a terminal. This makes getting things done on the terminal fast and avoids the risk of this course becoming a typing exercise.After introducing the different technologies, we together make a labenv tool in Python to make the management of the "labenvs" easy and efficient. This wrapper tool makes setting up Terraform and Ansible for "labenvs" literally a task of a second.The goal of the course is to enable students to setup "labenvs" for experimentation with software products. In the process all steps are explained in such a way that the student can tinker with the setup to play, understand and possibly extend the labenv tool.To demonstrate the value of labenv, we setup an Apache reverse proxy lab environment that we use to discuss some of the intricasies of Apache as a reverse proxy.
Overview
Section 1: Introduction
Lecture 1 Course material
Lecture 2 Introduction
Lecture 3 Prerequisites
Lecture 4 Conventions
Lecture 5 Copy paste
Lecture 6 Fast track
Lecture 7 Network setups
Section 2: Host deployment
Lecture 8 Introduction
Lecture 9 Introduction Rocky 9.4 installation
Lecture 10 Select Rocky 9.4 mirror
Lecture 11 Create bootable USB on Linux machine
Lecture 12 Guidelines for creating bootable USB on Mac or Windows machine
Lecture 13 Boot from USB for installation
Lecture 14 Do installation
Lecture 15 SSH client options on Windows machine
Lecture 16 Post installation tasks
Lecture 17 Configure LAN
Lecture 18 Setup SSH
Lecture 19 Libvirt installation
Lecture 20 Libvirt storage
Lecture 21 Libvirt extra network
Section 3: Base images creation
Lecture 22 Base images introduction
Lecture 23 Latest Rocky 9 base installation
Lecture 24 Prepare image as template
Lecture 25 Sparsify image
Lecture 26 Create older Rocky 9 base image
Lecture 27 Exercise: latest Rocky 8 image creation
Lecture 28 Solution: latest Rocky 8 image creation
Lecture 29 Exercise: older Rocky 8 image creation
Lecture 30 Solution: older Rocky 8 image creation
Section 4: Terraform
Lecture 31 Terraform introduction
Lecture 32 Terraform deployment
Lecture 33 Terraform libvirt provider experiments introduction
Lecture 34 Terraform libvirt provider COW system disk experiment
Lecture 35 Terraform libvirt provider VM with COW system disk experiment
Lecture 36 Terraform libvirt provider cloud-init ISO experiment
Lecture 37 Oops, forgot to remove infrastructure elements
Lecture 38 Terraform libvirt provider VM with COW system disk and ISO experiment
Lecture 39 Why Terraform modules?
Lecture 40 Terraform VM module
Lecture 41 Terraform VM module single node test
Lecture 42 Terraform VM module multiple node test
Lecture 43 Why Terraform wrapper module?
Lecture 44 Terraform VMs module
Lecture 45 Terraform VMs module test
Lecture 46 Exercise: create 2 VMs with Terraform VMs module
Lecture 47 Solution: create 2 VMs with Terraform VMs module
Section 5: Ansible
Lecture 48 Ansible introduction
Lecture 49 Ansible installation
Lecture 50 Create Ansible collection
Lecture 51 Create role host
Lecture 52 Create role guest
Lecture 53 Create role etc_hosts
Lecture 54 Demo of Ansible collection
Section 6: Labenv tool
Lecture 55 Labenv tool introduction
Lecture 56 Install the labenv tool
Lecture 57 Use the labenv tool: simple example
Lecture 58 Use the labenv tool: complex example
Lecture 59 Exercise: create elastic stack labenv
Lecture 60 Solution: create elastic stack labenv
Lecture 61 Problem: change a VM's IPv4 address
Lecture 62 Problem: redeploy a VM
Lecture 63 Problem: move VMs from one labenv to another
Lecture 64 Problem: remove VM from labenv and host
Lecture 65 Problem: move VM out of a labenv while keeping it on host
Lecture 66 Problem: import VM into labenv with help of dummy labenv
Lecture 67 Problem: deal with same node type on multiple labenvs
Section 7: Labenv use cases
Lecture 68 Labenv use cases introduction
Lecture 69 Create Apache reverse proxy labenv
Lecture 70 Configure the origin server VM
Lecture 71 Configure origin server default vhosts
Lecture 72 Configure origin server named vhosts
Lecture 73 Reverse proxy message sequence diagrams
Lecture 74 Configure reverse proxy VM
Lecture 75 Create root Certificate Authority (CA) on reverse proxy
Lecture 76 Create server certificate on reverse proxy
Lecture 77 Configure Certificate Authority (CA) bundle on Linux client
Lecture 78 Configure default vhosts on reverse proxy
Lecture 79 Why redirects fail
Lecture 80 Fix the failing redirects
This course is aimed at Linux enthousiasts or Linux engineers who want to setup their own laboratory environment in which they can easily test software and technologies. By creating a "labenv" tool together an environment is setup that can be tinkered with and provides an easy and efficient way to setup sets of VMs (labenvs).
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