NodeChecker Controller

Native kubernetes controller that allow you to check features and connections of kubernetes nodes.

How to use

Installing via chart

Clone the last version of the project and use helm to install the controller into your cluster.

$ git clone https://github.com/josericardomcastro/nodechecker-controller.git
$ cd nodechecker-controller/chart
$ kubectl create namespace nodechecker-controller
$ helm install nodechecker-controller . -n nodechecker-controller

Creating nodecheckers

The controller works with the custom CRD kind: NodeChecker to create nodecheckers.

Nodecheckers are rules to validate node connectivity to another nodes, external host or clusters endpoints. To validate node features, it possible to create rules to check if the node has AVX, GPU or another feature.

Examples:

• Connection checker
• Feature checker

See the chart, for the full documentation.

Development instructions

Requirements

• Kubernetes 1.19+
• go 1.16

Commands

Generate APIs

After modifying the pkg/apis/nodecontroller/v1/types.go file always run the following command to update the generated code for that resource type:

:~$ make generate-api 

Generate CRD Manifest

The CRD manifests can be generated and updated with the following command:

:~$ make generate-crd