Volume Creation Using NetApp ONTAP REST API

Overview

This project provides a Python script (Volume.py) that automates the creation of a storage volume on a NetApp ONTAP cluster using its REST API. It demonstrates how to interact with the ONTAP REST API to perform storage provisioning tasks programmatically.

What It Does

The script sends an HTTP POST request to the ONTAP cluster's /api/storage/volumes endpoint to create a new FlexVol volume with the specified configuration:

• Volume name – the name to assign to the new volume
• SVM – the Storage Virtual Machine (SVM) that will own the volume
• Aggregate – the underlying physical storage aggregate to place the volume on
• Size – the provisioned capacity of the volume (in bytes)

Prerequisites

• Python 3.x
• requests library (pip install requests)
• Access to a NetApp ONTAP cluster (9.6 or later recommended) with REST API enabled
• Valid ONTAP credentials with sufficient privileges to create volumes

Configuration

Before running the script, update the following variables inside Volume.py:

Variable	Description	Example
CLUSTER	Base URL of your ONTAP cluster	https://192.168.0.101
header	Base64-encoded user:password in the Authorization header	See note below
payload["name"]	Name for the new volume	vol_4
payload["svm"]["name"]	SVM that will own the volume	svm1
payload["aggregates"][0]["name"]	Aggregate to place the volume on	cluster1_01_SSD_1
payload["size"]	Volume size in bytes	1073741824 (1 GiB)

Generating the Authorization header value: The Authorization header uses HTTP Basic Auth encoded as Base64.

echo -n "admin:YourPassword" | base64

Paste the result as the value after "Basic " in the header dictionary. Note: The command above is for illustration only. Typing passwords directly on the command line may expose them in your shell history. In production, use read -s or a secrets manager to handle credentials securely.

Usage

python Volume.py

Example Output

Status: 201
Response: {'job': {'uuid': 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx', '_links': {...}}}

A 201 Created status indicates the volume was successfully created. The response includes a job UUID that can be used to track the provisioning job status via the ONTAP REST API.

Notes

• ⚠️ SSL Warning: SSL certificate verification is disabled (verify=False) in this script. This exposes connections to man-in-the-middle attacks and must not be used in production. For production environments, provide a valid CA-signed certificate and set verify=True or pass the path to your CA bundle (e.g., verify="/path/to/ca-bundle.crt").
• The script has a 15-second timeout on the HTTP request to avoid hanging indefinitely on network issues.