Clarify endpoints

slides/kube/kubectlexpose.md

@@ -213,12 +213,15 @@ class: extra-details
 
 ## Viewing endpoint details
 
-- When we have many endpoints, the previous command truncates the list
+- When we have many endpoints, our display commands truncate the list
+  ```bash
+  kubectl get endpoints
+  ```
 
 - If we want to see the full list, we can use one of the following commands:
   ```bash
-  kubectl describe endpoint elastic
-  kubectl get endpoint elastic -o yaml
+  kubectl describe endpoints elastic
+  kubectl get endpoints elastic -o yaml
   ```
 
 - These addresses will show us a list of IP addresses
@@ -227,3 +230,23 @@ class: extra-details
   ```bash
   kubectl get pods -l run=elastic -o wide
   ```
+
+---
+
+class: extra-details
+
+## endpoints not endpoint
+
+- `endpoints` is the only resource that cannot be singular
+
+```bash
+kubectl get endpoint
+kubectl describe endpoint
+```
+
+--
+
+.warning[error: the server doesn't have a resource type "endpoint"]
+
+- This is because the type itself is plural (unlike every other resource)
+- There is no `endpoint` object: `type Endpoints struct`