Vultr Customer Portal

1. Navigate to Products, expand the Network group and click Reserved IPs.
2. Click your target reserved IP to open its management page.
3. Click the Attach to Server drop-down and select your target Vultr Optimized Cloud Compute instance.
4. Click Attach to apply the reserved IP to the Vultr Optimized Cloud Compute 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 Reserved IPs endpoint and note the target reserved IP’s ID.
   console

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

3. Send a POST request to the Attach Reserved IP endpoint to attach the reserved IP to the instance.
   console

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

Vultr CLI

1. List all reserved IPs in your Vultr account and note the target reserved IP’s ID.
   console

   $ vultr-cli reserved-ip list
   

2. List all available instances and note your target instance’s ID.
   console

   $ vultr-cli instance list
   

3. Attach the reserved IP to the instance.
   console

   $ vultr-cli reserved-ip attach <reserved-ip-id> --instance-id <instance-id>

Terraform

1. Open your Terraform configuration for the existing Optimized Cloud Compute instance.
2. Create (or import) a Reserved IP and reference it from the instance using reserved_ip_id.
   terraform

   resource "vultr_reserved_ip" "public_ip" {
       region  = "del"
       ip_type = "v4"          # or "v6"
       label   = "occ-reserved-ip"
   }
   
   resource "vultr_instance" "occ" {
       # ...existing fields (region, plan, os_id, label, etc.)
   
       reserved_ip_id = vultr_reserved_ip.public_ip.id
   }
   

3. Apply the configuration and observe the following output:

   Apply complete! Resources: 1 added, 0 changed, 0 destroyed.