PersistentVolume (PV) definition in Kubernetes - Mini Project: Build & Apply

PersistentVolume (PV) definition

📖 Scenario: You are setting up storage for a Kubernetes cluster. You need to create a PersistentVolume (PV) that pods can use to store data persistently, even if the pod restarts or moves.

🎯 Goal: Create a Kubernetes PersistentVolume (PV) YAML definition with specific storage capacity and access mode.

📋 What You'll Learn

Create a PersistentVolume named pv-demo

Set the storage capacity to 5Gi

Use the access mode ReadWriteOnce

Use hostPath as the storage backend with path /mnt/data

💡 Why This Matters

🌍 Real World

PersistentVolumes provide stable storage for applications running in Kubernetes, so data is not lost when pods restart or move.

💼 Career

Understanding PersistentVolumes is essential for Kubernetes administrators and DevOps engineers managing stateful applications.

1

Create the PersistentVolume skeleton

Create a YAML file with apiVersion set to v1, kind set to PersistentVolume, and metadata.name set to pv-demo.

Kubernetes

# Your code here

Need a hint?

Start by defining the basic structure of a PersistentVolume YAML.

2

Add storage capacity and access mode

Add a spec section with capacity.storage set to 5Gi and accessModes set to ReadWriteOnce.

Kubernetes

apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv-demo
# Add spec with capacity and accessModes below
# Your code here

Need a hint?

Use spec.capacity.storage and spec.accessModes fields.

3

Add hostPath volume source

Inside spec, add hostPath with path set to /mnt/data.

Kubernetes

apiVersion: v1
kind: PersistentVolume
metadata:
  name: pv-demo
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteOnce
# Add hostPath with path /mnt/data below
# Your code here

Need a hint?

The hostPath field defines the directory on the node to use for storage.

4

Display the complete PersistentVolume YAML

Print the complete YAML content of the PersistentVolume named pv-demo.

Kubernetes

# Print the YAML content below
# Your code here

Need a hint?

Review the full YAML to confirm all parts are included.