PersistentVolumeClaim (PVC) definition in Kubernetes - Mini Project: Build & Apply

Create a PersistentVolumeClaim (PVC) in Kubernetes

📖 Scenario: You are setting up storage for a Kubernetes application. You need to create a PersistentVolumeClaim (PVC) to request storage from the cluster.

🎯 Goal: Learn how to write a YAML definition for a PersistentVolumeClaim (PVC) that requests storage with specific size and access mode.

📋 What You'll Learn

Create a YAML dictionary with apiVersion, kind, metadata, and spec fields

Set apiVersion to v1

Set kind to PersistentVolumeClaim

Add metadata with a name my-pvc

In spec, set accessModes to ReadWriteOnce

In spec, set resources.requests.storage to 1Gi

💡 Why This Matters

🌍 Real World

Kubernetes applications often need persistent storage to save data beyond the life of a pod. PVCs let you request this storage easily.

💼 Career

Understanding PVCs is essential for Kubernetes administrators and DevOps engineers to manage stateful applications and storage resources.

1

Create the basic PVC structure

Create a YAML dictionary with apiVersion set to v1, kind set to PersistentVolumeClaim, and metadata with name set to my-pvc.

Kubernetes

# Your code here

Need a hint?

Start by defining the top-level keys and the metadata name.

2

Add access mode to the spec

Add a spec section with accessModes set to a list containing ReadWriteOnce.

Kubernetes

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: my-pvc
# Add spec with accessModes below
# Your code here

Need a hint?

Remember that accessModes is a list under spec.

3

Add storage request to the spec

Under spec, add resources.requests.storage set to 1Gi to request 1 gigabyte of storage.

Kubernetes

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: my-pvc
spec:
  accessModes:
    - ReadWriteOnce
# Add resources.requests.storage: 1Gi below
# Your code here

Need a hint?

Indent resources, then requests, then set storage to 1Gi.

4

Display the complete PVC YAML

Print the complete YAML definition of the PersistentVolumeClaim.

Kubernetes

# Print the PVC YAML below
# Your code here

Need a hint?

Show the full YAML content as the final output.