Kubernetes Multi-Cluster: Why and When To Use Them

Multi-cluster Kubernetes involves deploying multiple clusters across different data centers to ensure high availability, scalability, and compliance, with each cluster potentially serving different environments like production, staging, or QA. This setup offers enhanced flexibility, workload isolation, and security, as well as the ability to meet specific compliance requirements, such as GDPR. However, it also introduces complexities in configuration, inter-cluster communication, and security management, as well as increased costs due to the necessity of more infrastructure components. Deciding between single-cluster and multi-cluster setups depends on factors like cost considerations, the availability of skilled DevOps resources, and specific regulatory needs. Solutions like Qovery can simplify the management of multi-cluster Kubernetes by handling technical complexities and allowing users to focus on application success.