Fix variable for rbd_provisioner_user_secret (#5042)

* Update main.yml

* fix dead link 404

contrib/metallb/README.md

@@ -2,7 +2,7 @@
 ```
 MetalLB hooks into your Kubernetes cluster, and provides a network load-balancer implementation. In short, it allows you to create Kubernetes services of type “LoadBalancer” in clusters that don’t run on a cloud provider, and thus cannot simply hook into paid products to provide load-balancers.
 ```
-This playbook aims to automate [this](https://metallb.universe.tf/tutorial/layer2/tutorial). It deploys MetalLB into kubernetes and sets up a layer 2 loadbalancer.
+This playbook aims to automate [this](https://metallb.universe.tf/concepts/layer2/). It deploys MetalLB into kubernetes and sets up a layer 2 loadbalancer.
 
 ## Install
 ```

roles/kubernetes-apps/external_provisioner/rbd_provisioner/defaults/main.yml

@@ -8,7 +8,7 @@ rbd_provisioner_secret_name: ceph-secret-admin
 rbd_provisioner_secret_token: ceph-key-admin
 rbd_provisioner_user_id: kube
 rbd_provisioner_user_secret_name: ceph-secret-user
-rbd_provisioner_user_secret_token: ceph-key-user
+rbd_provisioner_user_secret: ceph-key-user
 rbd_provisioner_user_secret_namespace: rbd-provisioner
 rbd_provisioner_fs_type: ext4
 rbd_provisioner_image_format: "2"