Several containers such as Linux container, docker container or any of them, they package the application and isolate them from the host. This makes the container faster, reliable, efficient, light-weight and scalable.
But apart from being light-weight or scalable containers lead to issues like they could not communicate with each other, containers had to be deployed appropriately, they had to be managed carefully, auto-scaling was not possible with containers, distributing traffic was still challenging.
These problems were overcome by Kubernetes.
Kubernetes is an open-source container management tool which automates container deployment, container de-scaling and container load balancing. The benefits of it is that it works well with all cloud windows with all public, hybrid, on-premise cloud vendors.
Kubernetes has a huge community because it was first developed by Google and later donated to CNCF.
K8’s can group ‘n’ number of containers into one logical unit for managing and deploying them easily.
Fig: Architecture of Kubernetes
The first step here is to create a master which is the first step in creating the cluster. Then get the nodes to join those clusters. Either the pods or containers, everything would be running in nodes.
The K8’s masters can only be scheduling or replicating these containers across all these nodes, making sure the configuration satisfied.
There are two ways to access the K8’s master. By UI or by CLI, the CLI is the default way and it is a main way technically because when a user starts to set-up the cluster, they can use CLI and from this user can enable the dashboard. Once the dashboard gets enabled user probably get the GUI and start using K8’s deploying with the help of dashboard.
K8’s Master controls the node and inside nodes there were containers inside them. Containers are inside a separate PODS.
PODS are logical collection of containers which need to interact with each other for an application.
Replication Controller is master’s resource to ensure that requested number of PODS are running on nodes always.
Service is an object on master that provides load balancing across a replicated group of PODS.
The portable, being an open-source platform, Kubernetes manages the containerized workloads and services that ease the configuration and automation. The blog gives you an overall idea of what K8’s is and how it works.
Businesses and organizations are moving their workload to the cloud for better agility, performance, and security. Cloud computing is the bellwether of hosting applications and databases to improve the overall efficiency of business processes. The disparity between the on-premise workload and cloud environment workload often results in businesses migrating the workload to the cloud. Cloud technology shows impeccable growth contributing to the adoption of cloud-based computing across many businesses and organizations.
Centaurus, a next-generation cloud for the telecom sector, is an open-source project for building cloud infrastructure platform that can be used to build and manage public or private clouds, edge computing, and edge device datacenter. It is a solution to address key challenges of large-scale clouds such as system scalability, resource efficiency, multi-tenancy, edge computing, and the native support for the fast-growing modern workloads such as containers and serverless functions. Centaurus helps in creating multiple nodes, managing infrastructure, containerizing the environment, managing the pods, and many more.
Cloud computing is picking up the pace replacing the traditional methods of storing the data, accessing, and running the applications. Cloud migration is the process to shift the existing data, applications, and other business elements from data centers or one cloud to other cloud environments for better scaling. Organizations are shifting their businesses on cloud for more speed and agility. Migration to cloud gives the organization limitless computing resources.
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