Containers in microservices architecture use a simple creation process to provide an effective way to deploy services. But, having containers does not do the trick. If handling containers is being done manually, it is high time to rethink a container management team to manage and deploy these containers.
What may seem like 10 containers, in the beginning, can turn out to be hundreds and accumulate over time. A manual update would then be a thing of the past. Even then, running containers would not be sufficient as it is necessary to integrate and orchestrate them, make them scale up and scale down based on demand, allow effective communication across a cluster and make them defect tolerant.
Areas, where Kubernetes fits in with the infrastructure architecture, include,
1. Multi-cloud adoption
Microservice architecture is growing in usage, and the proof is in the surge in the usage of tools to manage them. Microservices help split an application into smaller components with containers that can run on private, hybrid, or public cloud. With most infrastructures, there are tools and features integrated for a specific platform only. But with Kubernetes, one can deploy to public, private, or hybrid clouds.
This breakdown of applications using microservices allows the development team to choose the right resources and tools for different tasks. This allows for greater freedom of choice and management of tools. In this case, team coordination comes into play. Proper coordination can ensure that all the infrastructure and resources required to run the app are allocated in a proper manner. Kubernetes offers a common framework that allows the team to inspect and work through resource usage and sharing issues.
2. For scalability and better deployment
For DevOps teams, Kubernetes can be a huge benefit. They have specific deployment operations that help roll out applications the modern way. With Kubernetes, organizations can test a new deployment in production, in parallel with the previous version. This helps scale up the new deployment while simultaneously scaling down the previous deployment. Kubernetes helps manage more clusters at the same time and constantly checks the health of nodes and containers.
In the topic of scaling, Kubernetes is flexible and allows vertical and horizontal scaling. New servers can be added or removed easily and on the basis of metrics such as CPU utilization, the number of running containers can be manually scaled as well. Another feature of Kubernetes that can ensure better deployment is automated roll-outs and rollbacks. Kubernetes handles rollouts for new versions or updates while monitoring the container's health. In case of any problems in the rollout, it automatically rolls back.
3. Cost optimization
If your business is operating at a massive scale, instead of hiring an expanding team as the number of containers increases over time, shifting to Kubernetes can be a cost-effective solution. Container-based architecture is made feasible with Kubernetes. It packs apps optimally using cloud and hardware investments.
An example of significant cost saving can be seen in the case of Spotify. As an early Kubernetes adopter, using its orchestration capabilities, Spotify has seen a 2-3x CPU utilization, resulting in better IT spend optimization. Not only does Kubernetes automatically scale your application to meet scalability needs, it helps free up human resources to focus on the tasks at hand.