🐛 Prevent hub host-not-found nginx upstream error in front (#1628)

* 🔧 Add `proxy_next_upstream` to retry finding `hub`

* 🔨 Set up `front` init-container to wait for `hub`

* Revert "🔧 Add `proxy_next_upstream` to retry finding `hub`"

This reverts commit 118b173069.

---------

Co-authored-by: Alon Girmonsky <1990761+alongir@users.noreply.github.com>

helm-chart/templates/06-front-deployment.yaml

@@ -106,6 +106,17 @@ spec:
               mountPath: /etc/nginx/conf.d/default.conf
               subPath: default.conf
               readOnly: true
+      initContainers:
+      - name: wait-for-kubeshark-hub
+        image: busybox
+        command:
+        - sh
+        - -c
+        - |
+          until nc -z kubeshark-hub 80; do
+            echo "Waiting for kubeshark-hub to be ready..."
+            sleep 5
+          done
       volumes:
         - name: nginx-config
           configMap: