Companies have started embracing the containerized approach. While they all used to have a massive monolithic architecture with thousands of lines of code that grew into a humongous, slow-moving, hard to manage thing, and this is where the problems started. The DevOps experts, developers, and architects are now coming to the opinion that a microservices…
We start with a basic overview of the Kubernetes cluster architecture. We first look at the architecture at a high level, and then we drill down into each of these components. We see what their roles and responsibilities are and how they are configured. And finally, you go through a practice test where you look…
Linux makes automation easy, hence, it has become an integral part of DevOps professionals. The best advice anybody can get while starting their journey in DevOps is to learn and understand the basics of Linux thoroughly. This makes the DevOps career path easy in the future. Linux is going to be there no matter what,…
Image source: Platform9 With Docker, you can run a single instance of the application with a simple Docker run command. In this case, to run a Node JS based application, you run the docker run nodejs command. But that’s just one instance of your application on one Docker host. What happens when the number of users…
Introduction to Container Orchestration An essential part of preparing for the Docker Certified Associate (DCA) exam is to familiarize yourself with Container Orchestration. Container Orchestration requires a set of tools and scripts that you can use to host, configure, and manage containers in a production environment. Deploying in Docker typically involves running various applications on…
Why Get a Docker Certification? With a rising pattern of organizations adopting Cloud services, Docker continues to gain popularity. At its core, Docker aids in containerization, that is, for the packaging of applications into modules that can easily be replicated and scaled independently. Unarguably, as more applications are moving to the cloud, being an expert…
You might have heard about some of the upcoming changes for the CKAD exam objectives as announced by the Linux Foundation recently. These changes will go into effect on September 28. If you sit for the exam on the 28th of September or after it will be in the new format, irrespective of when you scheduled the…
Docker Storage Basics File System When you install Docker on a host, it automatically creates a directory: /var/lib/docker. This becomes the default file path for the storage of Docker files and objects. The directory has subfolders such as aufs, containers, images, volumes, and more. Files related to images are stored in the images subfolder, while…
Docker Daemon Security Security within the IT landscape is as critical as maintaining a strong armed-force for a country. To ensure that the IT landscape of an organization is secured from external threats, organizations lay heightened emphasis to avoid security attacks that can potentially bring down business operations within days. Without ensuring your Docker Daemon…
Introduction to Docker Networking Default Networks When you install Docker on a host machine, it automatically creates 3 types of networks: none, bridge, and host networks. The Bridge network is the default network that Docker attaches to containers once they are created. This is a private internal network, whose IP address is typically 172.17.0.1, and…
Please confirm you want to block this member.
You will no longer be able to:
Please allow a few minutes for this process to complete.
