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How docker is helping IT Professionals? Today, there is a buzz all around about Docker and containerization in general. But the question is what docker is exactly, and why did it become so popular among IT Professionals? Docker can be defined as a platform that allows users to easily pack, distribute and manage applications within containers. Or it can be defined as an open-source project that automates the deployment of applications inside software containers. Running applications in containers instead of virtual machines are becoming trends in the IT world. The technology is considered to be one of the fastest growing in the industry. It allows developers to package up an application with all the parts it needs in a container, and then work with it as one package Docker is the replacement for virtual machines? Well, Docker cannot be introduced as a replacement of the virtual machine, If you want full isolation with guaranteed resources, a virtual machine is a w...

Virtualization means to install Guest operating system over the Host operating system with help of different tools like Virtualbox or VMware or KVM or Ovirt etc. With help of these tools, we can install any Operating system over another Operating system and start work on that whether we can use those as other Nodes for the practice of DevOps tools or other work. Let’s take a look at how Cloud companies are providing the Virtual machines, These companies install the number of virtual machines on Host OS. But the question is how these virtual machines are separated from each other in terms of VCPUs, RAM or other hardware resources etc. it means each machine has how many CPUs or how much RAM it has. For that, Hypervisor introduced, Hypervisor is a virtualization technique, computer software, firmware that creates and runs virtual machines. It is a kind of virtual machine monitor. Its main job is to cater to the needs of the guest operating systems and effectively manage in...