Cloud Downunder

Developing web application in early days required hack of work with no frameworks, program libraries and distributed database- resources were wasted away, and software development was expensive.Over the years this has changed as software developing technology transformed from physical to virtual machine and now to containerization.    Before containerization came into existence, the developers biggest challenge was to run an app in a single environment regardless of their platform, language, or framework.  Containerization  Containerization involves bundling an application together with all of its related configuration files, libraries and dependencies required for it to run across different computing environments. They are very useful in developing, deployment, and testing modern distributed apps and microservices. No matter what platform, language, or database is used the container eliminates all the road-blocks. [ Image source: edureka blog ] One of the most popular containerization ecosystems is Kubernetes. What is Kubernetes Kubernetes is an open-source container management tool developed by Google. It provides a “platform for automating deployment, scaling, and operations of application containers across clusters of hosts. It is developed for managing containerized applications in a clustered environment. The process is referred as container orchestration.  The deployment of Kubernetes may seem relatively easy, but it is not. It needs much technical expertise and highly skilled resources to set-up and manage. Kubernetes can help DevOps in simplifying the operations.   Kubernetes Architecture    [ Image source: sensu.io blog] Components of Kubernetes Architecture  Kubernetes Master: It is a control panel for the whole Kubernetes. Node/Minion: It contains all the necessary components to manage networking between the containers, communicate with the master node, and allocate resources to the containers scheduled. It is a set of CPU and RAM resources. Pods: Pods hold single or multiple containers Container: Your applications (web servers, databases, API servers, etc.) run inside the containers. Containers enable developers to package up an application with all of the parts it needs, such as libraries and other dependencies, and ship it all out as one package. Kublet: It monitors the pod and ensures everything is running seamlessly as well as execute instructions given by Master node Docker:Runs on each worker node and downloads images and starting containers. Kube Proxy: It is responsible for traffic routing. Kubectl: It is a command-line tool used to deploy applications, inspect and manage cluster resources, and view logs  Kubernetes objects such as replica sets, pods, and services, are submitted to the master. Based on the defined requirements and availability of resources, the master schedules the pod on a specific node.  In recent years, containers have become synonymous with cloud-native application architecture. In cloud environments, containers and VMs can be used together to provide users a great deal of flexibility in deploying, structuring, and managing their applications.  Below table highlights some popular cloud providers features for kubernetes.    From above analytics, we can say that Google Kubernetes,, Amazon and Microrsoft Azure are the best cloud providers for Kubernetes.  Here is the price plan from popular cloud providers of Kubernetes. Below plan is for 4 CPUs, and the price varies with the number of CPUs and storage size.  [ Image Source: Presslabs] Note**- The above plan could differ if there is any price revision conducted by the cloud providers