Kubernetes is an open-source, production-grade solution for automation of container deployment, containerized app management and scaling. Started and backed by industry giants such as Google and Red Hat, it makes it easier to discover and manage apps by breaking them into logical units. The cluster orchestration system makes it easier to deploy and scale containerized apps on a cluster and update/debug them with new versions.
Users expect modern apps and web services to be available 24/7, while developers also need to keep those apps and services updated, sometimes several times a day. These goals are better achieved by containerizing software, allowing developers to release and update it faster and more effectively.
Kubernetes makes container orchestration easier by combining the best community ideas with the experience accumulated over the years. The process starts with creating a Kubernetes cluster followed by app deployment, discovery, exposing it publically, scaling and updating.
Businesses and individuals might find it difficult to deploy and manage Kubernetes in the beginning. To overcome these difficulties, specialized services such as Kubernetes consulting experts from Architech help containerize software, allowing developers to manage operations more efficiently.
The highly scalable system allows running billions of containers without requiring businesses to increase their operations teams. In addition to high scalability, the system is also very flexible and works equally well for users who are testing locally or running globally. This helps them deliver apps on a consistent basis regardless of the complexity of their projects.
An article by The Enterprise Project highlights compelling statistics that make Kubernetes one of the highest-velocity projects in the history of open-source software. These include Kubernetes being the most-discussed and second most reviewed repository on Github. It bridges the gap between development and operations by allowing users to containerize them.
Containers are considered to be future’s deployment block as they make it a lot easier to package apps. They offer much better portability and efficiency compared to running apps inside of VM hypervisor. Kubernetes provides businesses with the tools they need to run containers at scale and API abstractions that enable them to plug-in different technologies.
Its orchestration capabilities enable users to run their apps on multiple cloud providers that support containers. This means users can orchestrate containers on an on-premises or cloud environment of their choice. The system now has over 25 partners that provide managed services and develop or their own Kubernetes distros.
Kubernetes allows mounting a variety of storage systems, including local storage, network storage and public cloud.
The system is scalable horizontally, allowing organizations to easily scale as their requirements grow. Apps can be scaled up or down in a variety of ways, including based on CPU usage, through a UI or using simple commands.
The system ensures efficient load balancing by giving containers their own unique IP addresses and one DNS for a group of containers. Users also don’t have to modify their apps to use service discovery mechanisms that are new or unfamiliar.
The system places containers and other constraints on auto-pilot based on the resources they need, without compromising on availability. This allows businesses to mix best-effort and critical workloads and save more resources while improving utilization.
Kubernetes automatically restarts, replaces and reschedules the failing containers or when nodes die. Users can also set the system to automatically kill containers that are not responding to the health checks defined by them, which also ensures that such containers are not advertised to the clients while they are down.
The system is designed to roll out app changes or configuration in a progressive manner. It monitors app health and rolls back the changes if something goes wrong, while constantly monitoring app health so all the instances are not killed at the same time.
Kubernetes makes it easier to deploy and update app configuration and secrets. Users don’t have to rebuild the entire images, helping then safeguard secrets in their stack configuration.
Kubernetes provides the ability to manage batch and CI workloads and replace the failing containers if needed.
Kubernetes was designed by Google to scale its internal apps like YouTube and Gmail and radically change how we built, deploy and manage apps. It offers more velocity, better efficiency and the agility companies need in the fast-moving IT world. It enables businesses to scale horizontally, delivery app consistent updates and is designed to run anywhere, whether cloud-based, on-premises or hybrid.