Why StatefulSets

Stateful Applications

• Postgres
• MongoDB
• Redis
• Any other DB
• NFS
• ...

What is a StatefulSet?

• For managing stateful applications
  • Think persistent storage
• Like a Deployment
  • Managed pods are identical
• Unike a Deployment
  • Maintains Sticky identity for each pod
  • Pods not interchangeable
  • Each pod has persistent identifier that is maintained across rescheduling
  • Scaling is not seamless

Sample Yaml Definition

Thank You

Questions?