For the longest time, application development and management were completely dependent upon physical infrastructure. As businesses looked to host multiple applications on a singular hardware system, virtualization solutions like hypervisors were introduced. A hypervisor, also known as a Virtual Machine Monitor (VMM), is software that creates and runs Virtual Machines (VMs). The hypervisor will allocate resources to each guest or …
Kubernetes DNS Service: A Beginner’s Guide
Kubernetes, also known as K8s, is an open-source orchestration system for automating deployment, scaling, and managing containerized applications. Its portability, flexibility, and automatic scaling capabilities make it an extensively used system. Above all the standout features, the option to create DNS records for services and pods makes it unbeatable from other software systems. Kubernetes DNS service allows you to contact …
How To Troubleshoot and Inspect Kubernetes Networking
Kubernetes is an open-source tool that is crucial in container orchestration. Kubernetes helps in orchestrating and managing clusters at scale across various cloud environments or even on-premise servers. A cluster is a set of hosts meant for running containerized applications and services. A cluster needs a minimum of two nodes to work – one master node and a worker node. …
Build and Deploy a Flask Application with Docker on Ubuntu 20.04
Introduction Docker is an open-source container platform. It is a lightweight, virtualized, portable, software-defined standardized environment that allows the software to run in isolation from other software running on the physical host machine. Docker offers a lightweight alternative to virtual machines. At the same time, it provides portability, performance, agility, and scalability of applications. For a comprehensive guide about the …
Introduction to Helm: Package Manager for Kubernetes
Kubernetes is a popular and powerful container-orchestration system. Deploying applications to it, however, can be quite complex. That’s because a single application setup could entail generating several interdependent Kubernetes resources. Those can include deployments, pods, services, and replica sets. Each of these requires a YAML manifest file to be written. To ease the process of packaging, configuring, and deploying applications …
Exploring Platform-as-a-Service (PaaS) and its Types
PaaS stands for Platform-as-a-Service. These platforms serve to provide cloud computing services to modern businesses. However, there is no singular, one fits all definition for everyone. There are various aspects that are unique for different types of PaaS cloud solutions. Similarly, even the way we define cloud computing service models varies from case to case. Generally speaking, PaaS is a …
Containerization Technology: Types and Uses of Different Containers on CloudSigma’s PaaS Platform
Container technology provides a way for you to package your applications. You can put it into individual packets that are functionally capable and independent. CloudSigma’s Platform-as-a-Service solution (PaaS) offers two different types of containers: system containers and application containers. Let’s explore what each of these are, how they work, and where you can use them. What are System Containers? System …
How To Create a Kubernetes Cluster Using Kubeadm on Ubuntu 18.04
This tutorial will guide you on setting up a Kubernetes cluster from scratch using Ansible and Kubeadm and further deploying a containerized Nginx application with it. Introduction Kubernetes (also known as k8s or “kube”) is an open-source container orchestration platform that automates many of the manual processes involved in deploying, managing, and scaling containerized applications. Kubernetes has a rapidly growing …