Here is yet another interesting and useful sample question for the CKA exam. The Certified Kubernetes Administration exam is a performance-based exam, unlike other professional exams. Hence, you need to make your hands dirty by building a new Kubernetes cluster and trying all the sample questions. In UnixArena, I have shared sample questions and detailed […]
Docker
Why Kubernetes Backup is so important ?
Containers are a flexible and efficient way to run IT tasks. Kubernetes is one of the most widely adopted container orchestration platforms. Containers have expanded to run a much wider range of processes, including full-scale applications. Docker Swarn and Apache Mesos are other container orchestration platform exist in the market. In recent times, most enterprise […]
Cleanup all Docker containers using a single command
How to stop all the docker containers? How to destroy docker containers quickly? How to remove all the downloaded docker images? Very often we deploy the containers for testing and spend time cleaning up the containers one by one. This article will provide quick commands to stop all the running containers and delete them quickly. […]
Docker Basic Operations – Images and Containers
This article will help you to understand the basic operations of dockers images and containers. Images and containers are two basic components of Docker’s architecture. A container is launched using an image. An image is a fully packed stack which has everything that needed by an application i.e runtime libraries, environment variable, and configuration files. […]
How to Install docker on Redhat Linux (RHEL)- CentOS ?
How to install docker on Redhat Linux (RHEL) and CentOS? How to setup the docker environment to start the first container to start exploring the container world? In this article, we are going to demonstrate the docker community edition deployment on RHEL/CentOS. We will also launch the Docker containers to test the deployment. Docker […]
What is Docker ? How its different from Virtual Machine ?
What is Docker? Docker is a container run time engine. Docker provides the power of operating system using minimal resources. Docker support application development in monolithic situations. In other words, developers can develop the applications, ship the container and deploy it anywhere. The destination could be a virtual machine, physical server or cloud instances (AWS, […]
Let’s Start exploring the Docker – Container World
Virtualization industry is bringing up many interesting and yet useful products in the market to reduce the IT cost. VMware revolution demonstrated that how to utilize the hardware effectively using hypervisor and other sibling products. Similarly openstack development also going on aggressive pace to reduce the virtualization product cost by utilizing opensource technologies. Docker was no […]