Merge pull request #5921 from felder/felder_ugr

trying to add https to ugr01

deployments/ugr01/config/staging.yaml

@@ -12,11 +12,18 @@ jupyterhub:
   proxy:
     service:
       loadBalancerIP: 34.172.42.174
-  ingress:
-    enabled: true
-    hosts:
-      - ugr01-staging.datahub.berkeley.edu
-    tls:
-      - secretName: tls-cert
-        hosts:
-          - ugr01-staging.datahub.berkeley.edu
+    traefik:
+      extraInitContainers:
+        # This startup delay can help the k8s container network interface setup
+        # network routing of traffic to the pod, which is essential for the ACME
+        # challenge submitted by Traefik on startup to acquire a TLS certificate.
+        #
+        # Sleeping for 7 seconds has been consistently sufficient to avoid issues
+        # in GKE when this workaround was explored initially for GKE.
+        #
+        - name: startup-delay
+          image: busybox:stable
+          command: ["sh", "-c", "sleep 10"]
+    https:
+      hosts:
+        - ugr01-staging.datahub.berkeley.edu