Kubernetes: unleash the full potential of your cloud infrastructure
Kubernetes has surged in popularity for the last couple of years, and not without reason. Kubernetes is able to unleash the full potential of cloud infrastructure, delivering high availability, automated scaling, and low maintenance. It's an open-source platform which can work in virtually every cloud and can be implemented in public, private or hybrid clouds. This sounds very exciting, but what exactly is Kubernetes, and how does it live up to these promises?
This is Kubernetes
Kubernetes is an open-source platform for managing containerized workloads and services. Originally developed by Google, to meet internal demands, Kubernetes was designed to run containers at scale. To illustrate what Kubernetes is capable of: Google generates more than a billion container deployments a week. Before diving into the capabilities of Kubernetes, it is important to understand how these containers exactly work.
Containers in a nutshell
In essence, the containers are a way of packaging applications. Containers are immutable objects containing all your application’s code, libraries, and dependencies. This makes containers predictable and repeatable, as they can be moved or duplicated across different machines. Running a container is comparable to running a virtual machine, but without having the overhead of running an entire operating system, resulting in increased performance and more efficient use of resources. These characteristics make containers very popular in modern cloud solutions and often used in a microservice architecture.
Managing containers with Kubernetes
Spinning up containers one by one and maintaining them is becoming a labor-intensive process, especially if you want to run multiple containers across multiple machines. That’s where Kubernetes comes in! Kubernetes is a so-called container orchestrator, combining groups of hosts in clusters and manage container deploys across these clusters. Kubernetes automates many processes associated with the deployment and scaling of containerized applications.
The key advantages of using Kubernetes
- Self-healing: if a container fails, Kubernetes is able to create a new container right away, ensuring high availability.
- Container management: Kubernetes can handle container deployments across thousands of servers while operating as a single unit, with a single interface.
- Horizontal scaling: When visits towards your app or web service increases, Kubernetes can automatically replicate containers and balance the load between them. This ensures optimal user experience and makes your application resilient to unexpected surges in usage.
- No vendor lock-in: Kubernetes is open source and not limited to a single infrastructure, this makes it a flexible solution. You can always migrate your apps from one cloud to another.
- Rolling updates: Kubernetes allows to deploy updates with zero downtime. This is done by updating container instances with new ones, one by one. The update schedule is based on available node resources. This means no more downtime to deploy new versions of your application.
Kubernetes & Performance Cloud
At Performance Cloud, we enrolled our latest projects on Kubernetes clusters. Automatic deploys, rolling updates, and rollbacks reduce the necessity of systems engineers, allowing developers to rapidly implement changes to the application. Furthermore, Kubernetes can be integrated with GitLab, automatically deploying commits to staging or production environments.
Get started with Kubernetes!
Kubernetes is easy to maintain when everything is up and running. However, the setup can be a daunting process, choosing the right tools can be difficult and the learning curve is steep. This is where we excel, knowing which features to use in order to set up a cluster that matches your needs. This can range from migrating existing applications to run on a Kubernetes cluster, to fully customized solutions build from scratch.
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