Kubernetes Cloud Controller Manager for Vultr

The Vultr Cloud Controller Manager (ccm) provides a fully supported experience of Vultr features in your Kubernetes cluster.

• Node resources are assigned their respective Vultr instance hostnames, Region, PlanID and public/private IPs.
• Node resources get put into their proper state if they are shutdown or removed. This allows for Kubernetes to properly reschedule pods
• Vultr LoadBalancers are automatically deployed when a LoadBalancer service is deployed.

This plugin is in active development and you can track progress in the Milestones.

Getting Started

More information about running Vultr cloud controller manager can be found here

Examples can also be found here

Note: do not modify vultr load-balancers manually

When a load-balancer is created through the CCM (Loadbalancer service type), you should not modify the load-balancer. Your changes will eventually get reverted back due to the CCM validating state.

Any changes to the load-balancer should be done through the service object.

Development

Go minimum version 1.19.0

The vultr-cloud-controller-manager uses go modules for its dependencies.

Building the Binary

Since the vultr-cloud-controller-manager is meant to run inside a kubernetes cluster you will need to build the binary to be Linux specific.

GOOS=linux GOARCH=amd64 go build -o dist/vultr-cloud-controller-manager .

or by using our Makefile

make build-linux

This will build the binary and output it to a dist folder.

Note However if you wish to build the binary with the OS you are using you can run make build

Building the Docker Image

To build a docker image of the vultr-cloud-controller-manager you can use the docker-build entry in the make file. Take note that it requires 2 variables

• Version
• REGISTRY (dockerhub registry name)

an example could be

VERSION=v0.1.0 REGISTRY=vultr make docker-build

or if you chose to run it manually

docker build . -t vultr-cloud-controller-manager

Running the image

docker run -ti vultr/vultr-cloud-controller-manager

Deploying to a kubernetes cluster

You will need to make sure that your kubernetes cluster is configured to interact with a external cloud provider

More can be read about this in the Running Cloud Controller

To deploy the versioned CCM that Vultr providers you will need to apply two yaml files to your cluster which can be found here.

• Secret.yml will take in the region ID in which your cluster is deployed in and your API key.

• v0.X.X.yml is a preconfigured set of kubernetes resources which will help get the CCM installed.