Description: A Pod Disruption Budget (PDB) is a policy in Kubernetes that allows cluster administrators to define limits on the number of Pods that can be disrupted simultaneously during maintenance or upgrade operations. This tool is crucial for ensuring the availability and resilience of applications running in a container environment. By setting a PDB, a minimum number of Pods that must remain operational can be specified, helping to prevent significant service interruptions. PDBs are especially useful in production environments where service continuity is essential. Additionally, they enable DevOps teams to better manage the application lifecycle, ensuring that updates and changes to the infrastructure do not negatively impact the end-user experience. In summary, a PDB is a fundamental tool for managing application availability in container orchestration environments, providing a balance between the need to make changes to the system and the need to keep the service running.
