NFS
NFS lets many clients read and write the same directory on a server. In Kubernetes it is a simple way to provide ReadWriteMany persistent volumes. On AWS the managed equivalent is Amazon EFS.
Key concepts #
- Export: a directory the server shares, listed in
/etc/exports. - PersistentVolume: the Kubernetes object that points to the export.
- Permissions: user ids must match between client and server.
Learn it #
See an external NFS Persistent Volume on Kubernetes and PostgreSQL with an NFS volume.
Related tutorials
- Docker & Rancher Desktop Tutorials
Docker Volumes and Bind Mounts: Persist Data in Containers
Learn Docker volumes, bind mounts and tmpfs: how to persist a PostgreSQL database, back it up, share files with the host and avoid the common permission problems.
AWS Storage
AWS EFS
Amazon Elastic File System (EFS) is a managed, elastic NFS file system that many Linux EC2 instances, containers and Lambda functions can share.
- Kubernetes Tutorials
How to use an external NFS Persistent Volume on Kubernetes
How to use NFS Kubernetes Persistent Volumes for the storage of data. Postgres is used as an example.