Set up GCLB to router web WHOIS traffic

We need to support web WHOIS on the same IP addresses that we use for port 43 whois. [] added support for HTTP(S) traffic on the proxy, which simply redirects to another website that actually hosts the web WHOIS service. This cl sets up the GCLB to route port 80 and port 443 traffic to the proxy.

We were using the TCP proxy load balancer for other protocols that we support (EPP and WHOIS), but the TCP proxy LB only exposes port 443, not port 80. For port 443, we simply follow the same pattern and add another TCP proxy LB. For port 80, we had to use the HTTP LB which exposes port 80 (on the same external IP addresses). This requires a different HTTP health check and a URL map. The added URL map is a dummy one that routes all paths to the same backend service that supports HTTP redirect.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=206409007

java/google/registry/proxy/terraform/modules/input.tf

@@ -28,6 +28,8 @@ variable "proxy_ports" {
     health_check = 30000
     whois        = 30001
     epp          = 30002
+    http-whois   = 30010
+    https-whois  = 30011
   }
 }
 
@@ -39,5 +41,7 @@ variable "proxy_ports_canary" {
     health_check = 31000
     whois        = 31001
     epp          = 31002
+    http-whois   = 31010
+    https-whois  = 31011
   }
 }