How to retrieve IPv4 of a running cluster using DigitalOcean API?

Posted on January 6, 2023

I manually created a Kubernetes cluster using DO. Once it is provisioned, I requested the retrieve cluster API to get the “ipv4” of the cluster.

GET REQUEST ENDPOINT- ‘https://api.digitalocean.com/v2/kubernetes/clusters/2dc1377e-b7cd-4748-a3ab-1172ea5e6529’

response:

{"kubernetes_cluster":{"id":"2dc1377e-b7cd-4748-a3ab-1172ea5e6529","name":"echo-cluster","region":"blr1","version":"1.25.4-do.0","cluster_subnet":"10.244.0.0/16","service_subnet":"10.245.0.0/16","vpc_uuid":"b8998521-1fe4-490c-9ca5-fefb8064bc08", 

"ipv4":"",

"endpoint":"https://2dc1377e-b7cd-4748-a3ab-1172ea5e6529.k8s.ondigitalocean.com","tags":["k8s","k8s:2dc1377e-b7cd-4748-a3ab-1172ea5e6529"],"node_pools":[{"id":"db947a30-8f4e-4e18-8689-cda755ede961","name":"echo-node","size":"s-2vcpu-4gb","count":2,"tags":["k8s","k8s:2dc1377e-b7cd-4748-a3ab-1172ea5e6529","k8s:worker"],"labels":null,"taints":[],"auto_scale":false,"min_nodes":0,"max_nodes":0,"nodes":[{"id":"93408395-e057-47f8-8f6a-71bb0fec6812","name":"echo-node-mkfos","status":{"state":"running"},"droplet_id":"334227005","created_at":"2023-01-04T09:33:46Z","updated_at":"2023-01-04T09:35:14Z"},{"id":"b483769e-6897-4095-a37f-12fe73379ddf","name":"echo-node-mkfo5","status":{"state":"running"},"droplet_id":"334227004","created_at":"2023-01-04T09:33:46Z","updated_at":"2023-01-04T09:35:14Z"}]}],"maintenance_policy":{"start_time":"5:00","duration":"4h0m0s","day":"any"},"auto_upgrade":false,"status":{"state":"running"},"created_at":"2023-01-04T09:33:46Z","updated_at":"2023-01-04T09:38:34Z","surge_upgrade":false,"registry_enabled":false,"ha":false,"supported_features":["cluster-autoscaler","docr-integration","ha-control-plane","token-authentication"]}}

As you can see in the response, i am not able to get the ipv4, how i will assign domain record to IP?

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Bobby Iliev

April 14, 2023

Accepted Answer

Hi there,

Kubernetes clusters do not have a single public IP address that you can use to point a domain to. Instead, you’ll typically use LoadBalancer or Ingress resources to expose your services to the internet, and then point your domain to the IP address assigned to these resources.

You can follow the steps on how to do this here:

https://docs.digitalocean.com/products/kubernetes/how-to/add-load-balancers/

Hope that this helps!

Best,

Bobby