fix: ensure join-api is functioning (#434)

- consul was directing new rke2 control nodes to a dead join api
- add additional check to verify its responding (not just up)

Reviewed-on: #434

hieradata/roles/infra/k8s/control.yaml

@@ -58,6 +58,12 @@ consul::services:
         tcp: "%{hiera('networking_loopback0_ip')}:9345"
         interval: '10s'
         timeout: '1s'
+      - id: 'rke2_server_ping_check'
+        name: 'rke2 Server Ping Check'
+        http: "https://%{hiera('networking_loopback0_ip')}:9345/ping"
+        interval: '10s'
+        timeout: '3s'
+        tls_skip_verify: true
 profiles::consul::client::node_rules:
   - resource: service
     segment: api-k8s