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Version: 3.1

create-pvc-create-proxy-volume-pvcs

Portworx proxy volumes proxy an external data source onto a Portworx volume. The actual data for these volumes resides on the external data source and does not consume any storage from the Portworx storage pools.

note

Portworx does not support this feature for Windows NFS servers.

You can use proxy volumes to proxy an external NFS share onto your volumes. If you have an NFS share residing outside of your cluster and you wish to access it within an application pod, you can create a Portworx proxy volume that points to this external NFS share. Portworx acts as a medium and makes the external NFS data available to the pods running in your cluster.

Portworx uses the host’s NFS utilities to mount the external NFS share when a Pod using the proxy-volume PVC gets scheduled on a node. Depending on how you configure it, you can mount an entire NFS share to volumes, or you can mount only portions of the NFS share to volumes by specifying a directory sub-path.

Access an external NFS share

You can access a full NFS share in Portworx as a proxy volume. Application using this spec will have access to the whole NFS share. If you wish to access only a subdirectory within an NFS share, refer to the Accessing a sub-path of an external NFS share section. The examples in these instructions create a proxy volume for an nginx container.

Accessing a sub-path of an external NFS share

You can associate a sub-path of an NFS share with Portworx as a proxy volume. Under this approach, applications will have access to a specific sub-path within the NFS share. The examples in these instructions create a proxy volume for an nginx container.

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