feat: enable etcd monitoring for k0s (#1179)

* feat: enable etcd monitoring for k0s

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix: always enable etcd on k3s

Signed-off-by: Devin Buhl <devin@buhl.casa>

---------

Signed-off-by: Devin Buhl <devin@buhl.casa>

bootstrap/templates/kubernetes/k0s/k0s-config.yaml.j2

@@ -67,6 +67,10 @@ spec:
           extraArgs:
             # Required to monitor kube-scheduler with kube-prometheus-stack
             bind-address: "0.0.0.0"
+        storage:
+          etcd:
+            extraArgs:
+              listen-metrics-urls: http://0.0.0.0:2381 # Required to monitor etcd with kube-prometheus-stack
         api:
           sans:
             - "#{ bootstrap_kube_api_addr }#"