docs: use consistent examples in prometheus doc and add namespaceSelector spec (coder#16918)

EdwardAngert · web-flow · commit cf7d143e438a · 2025-03-13T22:09:26.000-04:00
closes: coder#15385 - use consistent `prom-http` port (@johnstcn looks like this was changed/added in coder#12214 - do we prefer `prom-http` over `prometheus-http` or is it more important that they align?) - add `namespaceSelector:` per @francisco-mata (thanks! - sorry it took so long to get this in) from issue: > For some reason our target was not appearing on our prometheus targets, we had to add a namespaceSelector key on the Service Monitor to successfully appear Co-authored-by: EdwardAngert <17991901+EdwardAngert@users.noreply.github.com>
diff --git a/docs/admin/integrations/prometheus.md b/docs/admin/integrations/prometheus.md
@@ -84,9 +84,12 @@ metadata:
   namespace: coder
 spec:
   endpoints:
-    - port: prometheus-http
+    - port: prom-http
       interval: 10s
       scrapeTimeout: 10s
+  namespaceSelector:
+    matchNames:
+    - coder
   selector:
     matchLabels:
       app.kubernetes.io/name: coder
