Kubernetes Classroom Series – 06/Jul/2021

Stateful Service

  • Overview: Distributed Stateful applications require features such as persisted identity, networking, storage.
  • Problem:
    • In real world behind every highly scalable stateless service is a stateful service typically in the shape of datastore
    • In early days of k8s when it lacked support of stateful workloads, the solution was to place stateless applications in k8s cluster and stateful applications outside cluster.
    • Single-instance stateful application => We create replica set and also Persistent Volume Claims & Persistent Volumes.
  • Solution:
    • K8S has StatefulSet that provides managing stateful applications. Preview

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