Added doc hint for install behind proxy (#3311)

* Added doc hint for install behind proxy * Move proxy info to end of doc
SeldonIO · Jun 21, 2021 · ab12736 · ab12736
1 parent 3eacc2d
commit ab12736
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/doc/source/workflow/install.md b/doc/source/workflow/install.md
@@ -222,3 +222,15 @@ make deploy-controllerid
 
 See the [multiple server example notebook](../examples/multiple_operators.html).
 
+### Install behind a proxy
+
+When your kubernetes cluster is behind a proxy, the `kube-apiserver` typically inherits the system proxy variables. This can block the `kube-apiserver` from reaching the webhooks needed to create Seldon resources.
+
+You could see this error:
+
+```bash
+Internal error occurred: failed calling webhook "v1.vseldondeployment.kb.io": Post https://seldon-webhook-service.seldon-system.svc:443/validate-machinelearning-seldon-io-v1-seldondeployment?timeout=30s: Service Unavailable
+```
+
+To fix this, ensure the `no_proxy` environment variable for the `kube-apiserver` includes `.svc,.svc.cluster.local`.  See [this Github Issue Comment](https://github.com/jetstack/cert-manager/issues/2640#issuecomment-601872165) for reference. As described there, the error could also occur for the `cert-manager-webhook`.
+