Revert "pass to localhost instead of docker-compose hostname (as no longer running nginx via docker)"

This reverts commit 99253241c4797908d4615e28b4dd8c2a3f726c73.

nginx/nginx.tmpl.conf

@@ -15,6 +15,9 @@ events {
 
 
 stream {
+    upstream backend {
+      server tty-proxy:3456;
+    }
     log_format json_combined escape=json
       '{'
         '"time_local":"$time_local",'
@@ -29,9 +32,10 @@ stream {
     # https://nginx.org/en/docs/stream/ngx_stream_core_module.html#server
     # the tty-server tcp connection ssl proxy
     server {
-        listen 5432 ssl;  #so_keepalive=30m::10;
-        proxy_pass localhost:6969;
-        
+        listen 3456 ssl; # so_keepalive=30m::10;
+        # listen 3456 ssl so_keepalive=30m::10;
+        proxy_pass backend;
+
         # proxy_ssl off means terminate ssl here which is good. 
         proxy_ssl off;
         ssl_certificate {{ssl.chain}}; 
@@ -76,12 +80,12 @@ http {
        access_log /var/log/nginx/data-access.log json_combined;
       
        location / {
-              proxy_pass http://localhost:8080;
+              proxy_pass http://tty-proxy:8080;
               proxy_set_header X-Real-IP  $remote_addr;
               proxy_set_header X-Forwarded-For $remote_addr;
               proxy_set_header Host $host;
               proxy_set_header X-Forwarded-Proto $scheme;
-              proxy_redirect http://localhost:8080 $scheme://$http_host/;
+              proxy_redirect http://tty-proxy $scheme://$http_host/;
               proxy_http_version 1.1;
               proxy_set_header Upgrade $http_upgrade;
               proxy_set_header Connection $connection_upgrade;