dev-docs: add 'things to try' section to VPN howto

edgelesssys · Nov 29, 2023 · 2f6bf27 · 2f6bf27
1 parent 1f2960b
commit 2f6bf27
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diff --git a/dev-docs/howto/vpn/helm/README.md b/dev-docs/howto/vpn/helm/README.md
@@ -18,6 +18,20 @@ This Helm chart deploys a VPN server to your Constellation cluster.
 
 3. Follow the post-installation instructions displayed by the CLI.
 
+## Things to try
+
+Ask CoreDNS about its own service IP:
+
+```sh
+dig +notcp @10.96.0.10 kube-dns.kube-system.svc.cluster.local
+```
+
+Ask the Kubernetes API server about its wellbeing:
+
+```sh
+curl --insecure https://10.96.0.1:6443/healthz
+```
+
 ## Architecture
 
 The VPN server is deployed as a `StatefulSet` to the cluster. It hosts the VPN frontend component, which is responsible for relaying traffic between the pod and the on-prem network, and the routing components that provide access to Constellation resources. The frontend supports IPSec and Wireguard.