Vultr Customer Portal

1. Navigate to Products and click Compute.
2. Click your target Vultr VX1™ Cloud Compute instance to open its management page.
3. Navigate to the Settings tab.
4. Find and click Custom ISO on the left navigation menu.
5. Select a custom ISO available in your Vultr account or click the ISO Library drop-down to select from a list of public ISOs.
6. Click Attach ISO and Reboot to attach the ISO to your instance.

Vultr API

1. Send a GET request to the List Instances endpoint and note your target instance’s ID.
   console

   $ curl "https://api.vultr.com/v2/instances" \
     -X GET \
     -H "Authorization: Bearer ${VULTR_API_KEY}"

2. Send a GET request to the List ISOs endpoint and note your target ISO ID.
   console

   $ curl "https://api.vultr.com/v2/iso" \
     -X GET \
     -H "Authorization: Bearer ${VULTR_API_KEY}"

3. Send a POST request to the Attach ISO to Instance endpoint to attach the ISO to your target instance.
   console

   $ curl "https://api.vultr.com/v2/instances/{instance-id}/iso/attach" \
     -X POST \
     -H "Authorization: Bearer ${VULTR_API_KEY}" \
     -H "Content-Type: application/json" \
     --data '{
       "iso_id" : "<iso-id>"
     }'

   If successful, you receive a 200 status code response.