Browse Library
Sign In Start Free Trial
Close icon Search icon
Account
Browse Library Sign In Start Free Trial

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Containerization with LXC
  • Table Of Contents Toc
Containerization with LXC

Containerization with LXC

By : Konstantin Ivanov
5 (2)
Buy this Book
close
close
Containerization with LXC

Containerization with LXC

5 (2)
By: Konstantin Ivanov
Buy this Book

Overview of this book

In recent years, containers have gained wide adoption by businesses running a variety of application loads. This became possible largely due to the advent of kernel namespaces and better resource management with control groups (cgroups). Linux containers (LXC) are a direct implementation of those kernel features that provide operating system level virtualization without the overhead of a hypervisor layer. This book starts by introducing the foundational concepts behind the implementation of LXC, then moves into the practical aspects of installing and configuring LXC containers. Moving on, you will explore container networking, security, and backups. You will also learn how to deploy LXC with technologies like Open Stack and Vagrant. By the end of the book, you will have a solid grasp of how LXC is implemented and how to run production applications in a highly available and scalable way.
Table of Contents (10 chapters)
close
close
close
Preface
Icon
Preface
Icon
What this book covers
Icon
What you need for this book
Icon
Who this book is for
Icon
Conventions
Icon
Reader feedback
Icon
Customer support
Lock Free Chapter
1
1. Introduction to Linux Containers
Icon
1. Introduction to Linux Containers
Icon
The OS kernel and its early limitations
Icon
The case for Linux containers
Icon
Linux namespaces – the foundation of LXC
Icon
Summary
2
2. Installing and Running LXC on Linux Systems
Icon
2. Installing and Running LXC on Linux Systems
Icon
Installing LXC
Icon
Building and manipulating LXC containers
Icon
Summary
3
3. Command-Line Operations Using Native and Libvirt Tools
chevron up
Icon
3. Command-Line Operations Using Native and Libvirt Tools
Icon
Using the LVM backing store
Icon
Using the Btrfs backing store
Icon
Using the ZFS backing store
Icon
Autostarting LXC containers
Icon
LXC container hooks
Icon
Attaching directories from the host OS and exploring the running filesystem of a container
Icon
Freezing a running container
Icon
Limiting container resource usage
Icon
Building and running LXC containers with libvirt
Icon
Summary
4
4. LXC Code Integration with Python
Icon
4. LXC Code Integration with Python
Icon
LXC Python bindings
Icon
Libvirt Python bindings
Icon
Vagrant and LXC
Icon
Putting it all together – building a simple RESTful API to LXC with Python
Icon
Summary
5
5. Networking in LXC with the Linux Bridge and Open vSwitch
Icon
5. Networking in LXC with the Linux Bridge and Open vSwitch
Icon
Software bridging in Linux
Icon
Connecting LXC to the host network
Icon
Summary
6
6. Clustering and Horizontal Scaling with LXC
Icon
6. Clustering and Horizontal Scaling with LXC
Icon
Scaling applications with LXC
Icon
Summary
7
7. Monitoring and Backups in a Containerized World
Icon
7. Monitoring and Backups in a Containerized World
Icon
Backing up and migrating LXC
Icon
Monitoring and alerting on LXC metrics
Icon
Simple autoscaling pattern with LXC, Jenkins, and Sensu
Icon
Summary
8
8. Using LXC with OpenStack
Icon
8. Using LXC with OpenStack
Icon
Deploying OpenStack with LXC support on Ubuntu
Icon
Summary
9
A. LXC Alternatives to Docker and OpenVZ
Icon
A. LXC Alternatives to Docker and OpenVZ
Icon
Building containers with OpenVZ
Icon
Building containers with Docker
Icon
Running unprivileged LXC containers
Icon
Summary

Using the Btrfs backing store

The B-tree filesystem (Btrfs) is a COW filesystem that provides modern features such as dynamic inode allocation, compression, and online filesystem defragmentation - and most importantly for the purposes of this book, writable and read-only snapshots.

Without going into much detail about the design of Btrfs, the following diagram shows the main components of the filesystem:

Using the Btrfs backing store

Each Btrfs filesystem consists of a Btrfs Root Tree, which records the root block for the Extent Tree and Subvolume Tree. The root block pointers are updated with each transaction, to point to the new roots created by the transaction. The Extent Tree shown in the preceding diagram manages disk space and contains information about the blocks on the device. The Subvolume Tree record snapshots, which are subvolumes.

Note that subvolumes are different than the LVs in the LVM, in the sense that the Btrfs subvolume is not an actual block device.

Let's look at a few examples on how to use the...

CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
Containerization with LXC
End of Section 3
Next Section
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist download Download options
font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected
Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful
Order Page Read Now

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon