klum – Kubernetes Lazy User Manager
klum does the following basic tasks:
- Create/Delete/Modify users
- Easily manage roles associated with users
- Issues kubeconfig files for users to use
This is a very simple controller that just create service accounts under the hood. Properly configured this should work on any Kubernetes cluster.
kubectl apply -f https://raw.githubusercontent.com/ibuildthecloud/klum/master/deploy.yaml
kind: User apiVersion: klum.cattle.io/v1alpha1 metadata: name: darren
kubectl get kubeconfig darren -o json | jq .spec > kubeconfig kubectl --kubeconfig=kubeconfig get all
The name of the kubeconfig resource will be the same as the user name
kubectl delete user darren
kind: User apiVersion: klum.cattle.io/v1alpha1 metadata: name: darren spec: clusterRoles: - view roles: - namespace: default # you can assign cluster roles in a namespace clusterRole: cluster-admin - namespace: other # or assign a role specific to that namespace role: something-custom
If you don’t assign a role a default role will be assigned to the user which is configured on the controller. The default value is cluster-admin, so change that if you want a more secure setup.
kind: User apiVersion: klum.cattle.io/v1alpha1 metadata: name: darren spec: enabled: false
When the user is reenabled a new kubeconfig with new token will be created.
The controller can be configured as follows. You will need to edit the deployment and change then environment variables:
GLOBAL OPTIONS: --namespace value Namespace to create secrets and SAs in (default: "klum") [$NAMESPACE] --context-name value Context name to put in Kubeconfigs (default: "default") [$CONTEXT_NAME] --server value The external server field to put in the Kubeconfigs (default: "https://localhost:6443") [$SERVER_NAME] --ca value The value of the CA data to put in the Kubeconfig [$CA] --default-cluster-role value Default cluster-role to assign to users with no roles (default: "cluster-admin") [$DEFAULT_CLUSTER_ROLE]
make or just
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