Container Orchestration – Expectations
The term Container Orchestration simply refers to a concept of automated arrangement, coordination, and management of multiple software containers over virtual machines. Some organizations may not need container orchestration if using technologies which support replicated databases. Container orchestration becomes an issue when the application starts growing, as the expectations and demands from the end user grows, the applications need an environment where new ideas and iterations can be tested.
By adding functionalities and features, the application starts draining more and more resources, after this developers break down the large applications into smaller chicks of programs, these smaller chunks of programs are allocated tasks within the large application. A separate application will make sure that smaller chunks of programs are properly coordinated and are being inline with the larger picture. This application called microservices makes sure that ship is sailing smoothly.
Container Orchestration – Reality
In reality, the applications need a caching layer which has a queuing mechanism to increase the performance and prevent backlogs of computing. The individual tasks associated with application need to processed asynchronously to ensure a smooth running of the application. A developer would also want to execute multiple containers at the same time as well, and all these containers should have a different environment as well. SO, in the end, developers face challenges like balancing the load between containers. Monitoring of the health of the individual containers, storage management, automatic scaling up and down according to the traffic, data security, configuration management and many other metrics. Developers need a tool which controls and monitors multiple containers without compromising on practicality, performance and reliability.
Kubernetes is the tool which helps developers to control containers, what makes it better is its ability to control multiple containers. Kubernetes or K8s is an open-source platform for automating deployments, real-time scaling, and operations of application containers across clusters of hosts, providing container-centric infrastructure. Kubernetes was developed by Google, Kubernetes was developed as a successor to Google’s internal cluster management tool, Borg. In the Next blog, we see in considerable detail on how Kubernetes does what it does.
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