LIBCT: Linux Containers Control Plane

LIBCT

Libct is a containers management library which provides convenient API for frontend programs to rule a container during its whole lifetime.

The library operates on two entities:

session -- everyone willing to work with container must first open a session. Currently there is only one type of session -- local, when all containers are created as child tasks of the caller using namespaces, cgroups etc.;

container -- a container. By default container is "empty", when started it is merely a fork()-ed process. Container can be equipped with various things, e.g.

Namespaces. Libct accepts clone mask with which container is started

Controllers. One may configure all existing CGroup controllers inside which container will be started.

Root on a filesystem. This is a directory into which container will be chroot()-ed (or pivot_root()-ed if mount namespace is used).

Private area. This is where the files for container are. Currently only one type is supported -- a directory that will be bind-mounted into root.

Network. Caller may assign host NIC of veth pair's end to container on start.

For more details, see Documentation/libct.txt. For usage examples, see test directory. All the API calls, types and constants are collected in src/include/uapi/libct.h.

Compiling

Currently, libct depends on libnl which is configured as a git submodule. So, before trying to compile libct for the first time you need to prepare libnl first:

git submodule update --init --recursive
(cd .shipped/libnl/ && ./autogen.sh && ./configure && make)

Once it is done, please compile as usual, i.e.

make

.gitignore

*.o
*.d
*.bin
*.elf
*.out
*.swp
*.swo
.git-ignore
*.so
*.a
cscope*
tags
TAGS
patches
src/include/version.h
src/include/config.h

gitmodules

[submodule ".shipped/libnl"]
	path = .shipped/libnl
	url = git://github.com/tgraf/libnl.git

Download Details:

Author: xemul
Source code:  https://github.com/xemul/libct

License: Apache-2.0 license

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LIBCT: Linux Containers Control Plane
Madelyn  Frami

Madelyn Frami

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10 Open Source/Commercial Control Panels For Virtual Machines (VM's) Management

Automatic creation and management of virtual machines is a topical issue for any company that provides VPS services. If you manage a large number of machines, a command line is definitely not the only tool you may need to perform various operations including client tasks, because such operations may be time-consuming.

In order to simplify routine tasks of server administrators and users, various companies develop control panels for virtual machines management, including interface-based solutions.

Don’t Miss20 Open Source/Commercial Control Panels to Manage Linux Servers

A control panel empowers you to perform any operation with a mouse click, whereas it would take you a good deal of time to complete the same task in the console. With a control panel, you will save your time and effort. However, it’s not all that simple.

Nowadays, VMmanager is the most popular software product for small and medium-sized businesses. VMware, in its turn, is a leading solution for large organizations. Both software products are commercial and rather expensive.

They deliver a large number of functions, however, some companies, especially, startups may need them. Besides, many of them cannot afford such an expensive product. For example, startups and companies in times of crisis may experience financial difficulties. Moreover, one can find interesting, outstanding solutions integrated with billing systems including tools for VM management.

How not to get lost among a great number of offers? We decided to help our users and wrote the following article, in which they will find answers to this question.

In this article, we will describe control panels for virtual machines management, both commercial and open-source, and help you choose the right solution to meet your personal needs.

1. VMmanager

VMmanager is one of the most popular commercial server virtualizations platforms based on QEMU/KVM technology. The solution has a reach feature set, that can suit both IT infrastructure owners and VPS services providers’ needs.

Virtual servers can be created within 2 minutes. Many routine tasks are performed automatically: including migration, cloning, reinstalling the OS, backups, adding and deleting interfaces, virtual server image creation, monitoring, statistics collection, server provisioning, etc.

The main advantages of VMmanager are:

  • Centralized management of various clusters.
  • Fault tolerance due to a microservice architecture.
  • Overselling, which helps to improve VPS provider’s equipment efficiency.
  • Complete control of the infrastructure thanks to a robust system of metrics collection.
  • A modern and intuitive interface.

VMmanager - Virtualization Management Platform

VMmanager – Virtualization Management Platform

2. VMware vSphere

VMware vSphere is the world’s leading server virtualization platform for building cloud infrastructure. With tons of its different powerful features, vSphere is a truely state-of-the-art software virtual machines management software. It is an ideal solution for large VPS providers with appropriate budgets and professional staff.

VMWare vSphere - Server Virtualization Platform

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How I Switched from Windows 10 to Linux Mint

This article is all about my journey on switching from Windows 10 to Linux Mint 20, how I got easily adapted to the Linux environment, and some resources that helped me to set up a perfect Desktop environment.

Uncertainty

Ok, now I have decided to switch to Linux but here comes the first question. Which distro will satisfy my needs both in terms of GUI and other aspects? Linux is not something new to me since I have been working with RHEL based distros in my work for the past 4 years with the command-line.

I know RHEL based distros are good for enterprises but not for personalized desktop environments, at least that’s what I am thinking till now. So I started my research to find the distro that should be easy for me to use and at the same time should have good community support if in case I ran into some problem. Among many Linux distros, I drilled down my list to 4 flavors.

Related ArticleThe Best Linux Distributions for Beginners

Before deciding the Distro it is necessary you formulate the list of tools/programs or packages needed and check if the distro you choose provides all those features.

For me, I use Linux for two main purposes: one is for my professional development work, writing articles, and second for my personal use like Video editing and Movies. Most of the popular software are created to be compatible with Windows, macOS, and Linux like Sublime TextVSCodeVLC Media PlayerFirefox/Chromium browser. Other than these software, cloud-based services make our life easy Like Microsoft Office 365 or G Suite.

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Lindsey  Koepp

Lindsey Koepp

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AWS Bottlerocket vs. Google Container-Optimized OS: Which Should You Use and When

What’s the difference between popular Container-Centric OS choices, Google’s Container-Optimized OS, and AWS’s Bottlerocket? The concepts underlying containers have been around for many years. Container technologies like Docker, Kubernetes, and an entire ecosystem of products, as well as best practices, have emerged in the last few years. This has enabled different kinds of applications to be containerized.

Web service providers like Amazon AWS and Google are giving a further boost to container innovation, for enterprises to adopt and use containers at scale. This will help them to reap the benefits containers bring, including increased portability and greater efficiency.

Linux-based OS, AWS Bottlerocket is a new option, designed for running containers on virtual machines (VMs) or bare-metal hosts. In this article, you will learn the core uses and differences between the two open-source OS.

**AWS Bottlerocket **

It is an open-source, stripped-down Linux distribution that’s similar to projects like Google’s Container-Optimized OS. This single-step update process helps reduce management overhead.

_It makes OS updates easy to automate using container orchestration services such as Amazon Elastic Container Service (ECS) and Amazon Elastic Kubernetes Service (EKS). _

**Google Container-Optimized OS **

It’s an OS image for Google Compute Engine VMs that’s optimized for running Docker containers. It allows you to bring up your Docker containers on Google Cloud Platform securely, and quickly. It is based on the open-source Chromium OS project and is maintained by Google.

But before diving into the core differences, let us give you a basic overview of containers, VMs, and container-optimized OS, and its underlying challenges to better understand the differences.

If you are already aware of all the underlying processes of containers, then you can skip to the main differences for AWS Bottlerocket vs Google Container-Optimized OS.

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I am Developer

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How to Delete Directories and Files in Linux using Command Line

In this remove or delete directories and files linux tutorial guide, you will learn how to remove empty directory and non empty directory linux using command line. And as well as how to remove/file files linux using command line.

If you work with Linux then you will need the following:

  • how to remove empty directory in linux,
  • how to remove non empty directory,
  • how to remove directory without confirmation linux
  • how to remove files with and without confirmation in linux.

So, this tutorial guide will show you you how to use the rmunlink, and rmdir commands to remove or delete files and directories in Linux with and without confirmation.

https://www.tutsmake.com/how-to-remove-directories-and-files-using-linux-command-line/

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