There are various ways to deploy pods.

• from a replica set
• from a replication controller
• from a stateful set (this article)

A stateful set is a resource in OpenShift that is used to deploy one or more pods running a stateful application (an application that keeps track of the state of something), such as the state of a connection to some backend, such as a SQL database.

The oc get statefulsets command can be used to list the stateful sets in the currently selected project / namespace.

TIP

The -A or --all-namespaces flag can be used to list the replica sets in every project / namespace.

The -n or --namespace flag can be used to list the replica sets in a certain project / namespace.

~]$ oc get statefulsets
NAME                         READY   AGE
my-stateful-set-foo          2/2     16d
my-stateful-set-bar          2/2     629d