Strategies for Kubernetes Deployment: A Complete Guide
Pods are updated, degraded, or created into new versions of applications using Kubernetes deployment strategies. The various Kubernetes deployment techniques and associated use cases will be covered in this article.
What is Kubernete’s deployment strategy?
A pod replica set is managed by a deployment, a Kubernetes object. The smallest deployable unit in Kubernetes that can hold one or more containers is called a pod. Deployments guarantee that the desired number of replicas in a pod is active and in good condition.
Strategies for deploying Kubernetes
There are four main ways to implement Kubernetes:
- Update Deployment in Rolling
In Kubernetes, the rolling update deployment approach is used by default. In a rolling method, one at a time replaces pods of older versions of your program with pods of the new version. This makes sure that the program is always accessible while being updated.
- Green-Blue Deployment
Two identical environments are distributed using the blue-green deployment technique, one with the application’s new version (green) and the other with the current version (blue). Traffic is shifted from the blue environment to the green environment once the green environment is ready. This tactic makes sure that the updated application is thoroughly tested before going into production. When you want to test a new version of your application in a setting like production before deploying it to production, blue-green deployments can be helpful.
- Deployment of canaries
With the canary deployment approach, a new version of the program is only made available to a select group of users or servers. The canary group refers to this subset. Only a small portion of traffic is sent to the canary group; the majority is sent to the application’s older version. The updated version is gradually handed out to the remaining users or servers if the canary group performs successfully. The new version is turned back if the canary group performs poorly. When you want to test a new version of your application in a setting like production before rolling it out to all users or servers, canary deployments can be helpful.
- Deployment of A/B Testing
Deploying two separate versions of the program to various servers or user groups is part of the A/B testing deployment strategy. One of the two groups is randomly chosen to receive the users or servers. The first group receives Version A of the application, while the second group receives Version B. The two versions’ performances are then contrasted to see which version performs better.
Conclusion
The specific use case and application needs will influence the deployment technique chosen. When you wish to deploy a new version of your application without experiencing any downtime, the rolling update deployment—Kubernetes’ strategy is helpful.
When you wish to test a new version of your application in a setting similar to production before releasing it to production, the blue-green deployment method can be helpful. When you want to test a new version of your application in a setting similar to production before rolling it out to all users or servers, the canary deployment technique can be helpful. You can guarantee that your applications are always accessible and operating at their best with these deployment options.
