Containers against virtual machines
Containerization is also a way to isolate software and process a platform for software implementation. Here are two main differences between the container and the hypervisor:
First, the container system requires a basic operating system that provides basic software services to all containers, supporting virtual memory for isolation. A hypervisor, on the other hand, with virtual hardware support, creates virtual machines that each have their own independent operating system. Secondly, container systems have fewer caches than duct machines, and their usual use is the environments in which there are thousands of containers. Container systems typically isolate container services, so container services such as file systems and network support can have limited access to resources.
There is another case called para-virtualization, which combines two approaches. This method uses virtual memory support for debugging, but it requires specific device drivers in a virtual machine that connects to the operating system layers using the hypervisor, which delivers the type of service itself.
A hardware virtualization system processes any communication with a virtual machine through hardware. Some systems allow real hardware to come directly into the virtual machine environment, which enables the virtual machine to directly integrate the hardware. Also, hardware virtualization and virtualization allow you to create multiple instances of a single hardware device, such as an Ethernet adapter. Accordingly, several virtual machines can directly manage similar samples.
In short, the virtual machine actually processes an abstract machine that targets the virtual machine using the device drivers, while the container processes an abstract operating system. A portable virtual machine environment provides an abstract hardware layer, or HAL, which requires a dedicated driver for the HAL device.
Software in a container environment shares the underlying operating system, while virtual machine systems can run different operating systems. In general, the virtual machine hosts a variety of software that can change their composition over time, in front of a container, it typically has a single software.
The virtual machine technology is well-known, but the containers are similar to those not yet known. So you need more introduction in this article. Containers have a great deal of desires for servers and cloud systems. Companies like Facebook and Google have been investing heavily on Catener Technologies, for example, any Google Docs service that provides a container for each user.
There are a number of container technologies that are already leading Linux. The most popular platform is Docker, which is based on Linux libcontainer. In fact, Docker is a management system used to create, manage, and monitor the process of Linux containers. Ansible is another successful container management system created by Red Hat.
Microsoft has been lagging behind and late, but the Windows container is a way to deliver container services on the Windows platform. Of course, a Linux container service may be hosted as a virtual machine on a Microsoft server platform, such as Hyper-V. Container management systems like Docker and Ansible can manage Windows-based servers that back up the container.
By: William Wong in ElectronicDesign Online. July 15, 2016