Linux containers vs virtual Machines-who wins

Source: Internet
Author: User

Understanding the differences between Linux containers and virtual machines has become trickier since containers on Linux became popular. This article will provide you with more information about the differences between Linux containers and virtual machines.

Linux containers vs Virtual Machines-applications and operating systems

The first thing to know about containers and virtual machines is that one is applied to the application and the other is designed for the operating system. That's why you'll often see some enterprise applications running on containers instead of on your own virtual machines. There are some advantages to using containers on virtual machines.

One of the biggest advantages of containers is the ability to reserve resources that are less than virtual machines. Keep in mind that containers are essentially single applications, and virtual machines require more resources to run the entire operating system.

If you need to run Mysql,nginx or other services, it is very necessary to use containers. However, if you need to run the full lamp stack on your own server, it's better to run the virtual machine. Virtual machines are more flexible, so you can choose your operating system and upgrade as you see fit. In contrast, running the configured application container is isolated from the host's operating system upgrade.

Linux containers vs Virtual machines-use case scenarios

One of the reasons I like to use containers best is to use the Linux library version. For example, suppose you need a specific version of Python to develop your application. Then, when you update on the box where you run the application, you suddenly notice that the Python version has changed, causing the application to not work correctly.

Another advantage of using containers is that you can put an application in a container and then run it on any operating system that supports the type of container you are running. When you want an application that runs on a different Linux distribution. By using containers, you can run similar application environments on a variety of distributions. The container provides portability.

Containers are more feasible for fast, cross-release deployments, and virtual machines are better for a single application like running the lamp stack.

Linux containers vs Virtual Machines-security

Virtual machines provide more security than containers. This is not to say that the container cannot be protected, but that the default virtual machine provides greater isolation. Keep in mind that containers can share system resources while virtual machines do not.

When you run a container, you can take steps to mitigate the risk, including avoiding superuser permissions, ensuring that the container is taken from a trusted source, and keeping it up to date. Some containers are digitally signed, which helps to make sure that you can get containers from trusted sources.

Finally, you need to maintain a single functional responsibility for the container. Once you start to combine software responsibilities under a container, you'll find it best to use a virtual machine. Again, the container is for a single-purpose application, and the virtual machine is used for multipurpose applications. By sticking to this approach, you will be in a better position in terms of security and overall functionality.

Linux containers vs Virtual Machines-choose the right tool

Regardless of the type of virtual machine or container, the key to choosing the right fit for your needs is the ability to study each option. In the container area, Docker provides a powerful enterprise solution. This attracts companies that focus on Docker containers, because companies know they can get the support they need if there's any problem. Docker is an enterprise user-friendly choice, especially in Docker swarms. The Kubernetes setting in the advanced environment is much more complex than the Docker swarms compared to Kubernetes.

Back to the virtual machine, I've always found that VirtualBox can provide a better desktop-facing virtual machine environment. VMware has a wide range of products for servers, and VMware has a variety of virtual machine solutions from storage to cloud server solutions, as well as other options (various management programs, etc.). But I think VirtualBox and VMware represent two areas of desktop-to-server virtualization well.

Linux containers vs Virtual Machines-the winner?

Before you decide on a container or virtual machine, consider the following considerations. If you choose a container, you can run the container entirely on the virtual machine. It's important to understand this because there are no obvious winners or losers. In fact, the requirements of these two technologies are completely different.

Containers will cause continued media attention because they allow users to run more efficiently with less hardware. On the other hand, virtual machines are still the main content of servers and cloud space.

I think it's worth seeing things between Kubernetes and Docker Swar. I think it's a look at how these two container management technologies work, and which technology will be the norm. For a while, it felt like Docker. Now, however, kubernetes occupy more of the camp. As time goes by, we will start to see Kubernetes become the top news and be the number one in the container camp.

Linux containers vs virtual Machines-who wins

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