OCM Controllers

The OCM controllers

• support the deployment of an OCM component and its resources, like Helm charts or other manifests, into a Kubernetes cluster with the help of kro and a deployer, e.g. FluxCD.

Before You Begin#

You should be familiar with the following concepts:

• Open Component Model
• Kubernetes ecosystem
• kro
• Kubernetes resource deployer such as FluxCD.

Architecture#

The primary purpose of OCM Controllers is simple: Deploy an OCM resource from an OCM component version into a Kubernetes cluster.

The diagram below provides an overview of the architecture of the OCM Controllers.

Installation#

Currently, the OCM controllers are available as image and Kustomization. A Helm chart is planned for the future.

To install the OCM controllers into your running Kubernetes cluster, you can use the following commands:

# In the open-component-model repository, folder kubernetes/controller
task deploy

or

kubectl apply -k https://github.com/open-component-model/open-component-model/kubernetes/controller/config/default?ref=main

Getting Started#

• Setup your (test) environment with kind, kro, and FluxCD
• Deploying a Helm chart using a ResourceGraphDefinition with FluxCD
• Deploying a Helm chart using a ResourceGraphDefinition inside the OCM component version (bootstrap) with FluxCD
• Configuring credentials for OCM controller resources to access private OCM repositories