> For the complete documentation index, see [llms.txt](https://notebook.iuriioapps.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://notebook.iuriioapps.com/containers-and-microservices/kubernetes/storage-in-kubernetes.md).

# Storage in Kubernetes

* Storage and stateful workloads are harder in all systems
* Containers make it both harder and easier than before
* StatefulSets is a new resource type, making Pods more sticky
* Avoid stateful deployments for first few deployments until you're good at the basics
* Use Database-as-a-Service whenever you can
* Creating and connecting volumes: 2 types
  * Volumes
    * Tied to a lifecycle of a Pod
    * All containers in a single pod can share them
  * PersistentVolumes / PersistentVolumeClaims
    * Created at a cluster level, outlives a Pod
    * Separates a storage config from Pod using it
    * Multiple Pods can share them
* CSI (Container Storage Interface) plugins are the new way to connect to storage