pfisterer / edsc-microk8s-controller

Kubernetes controller/operator to create virtual machines in OpenStack with microk8s preinstalled based on custom resources.

EDSC MicroK8s Controller

Local Development

Run npm start

Build the Docker container

Run docker build -t farberg/edsc-microk8s-controller .

Development Deployment to K8S

Run skaffold dev

Periodically add and remove a CR:

while true; do 
	DELAY=10s
	k apply -f test/private-demo-microk8s.yaml
	sleep $DELAY; k delete microkeights.mk8.farberg.de --all
	sleep $DELAY
done

Development Deployment to K8S

Run skaffold run

FAQ

I'm getting errors like

Exception in main method: Error: customresourcedefinitions.apiextensions.k8s.io is forbidden: User "system:serviceaccount:default:default" cannot create resource "customresourcedefinitions" in API group "apiextensions.k8s.io" at the cluster scope

Solution

• Create missing RBAC roles
• For development (e.g., in Minikube), run

kubectl create clusterrolebinding \
	--clusterrole=cluster-admin \
	--user=system:serviceaccount:default:default \
	--clusterrole=cluster-admin \
	--user=system:serviceaccount \
	rds-admin-binding