Chapter 8. Stateful applications
This chapter covers
- Enabling a headless service
- Clustering applications
- Configuring sticky sessions
- Handling graceful shutdowns
- Working with stateful sets
In chapter 7, you created persistent storage for the Image Uploader pods, which allowed data to persist past the lifecycle of a single pod. When a pod failed, a new pod spun up in its place and mounted the existing persistent volume locally. Persistent storage in OpenShift allows many stateful applications to run in containers. Many other stateful applications still have requirements that are unsatisfied by persistent storage alone: for instance, many workloads distribute data through replication, which requires application-level clustering. In OpenShift, ...
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