Enable connection pooling in nginx upstreams

Author: mejedi

deployments/modules/backend/app.nginx.conf

@@ -6,12 +6,14 @@ server {
 
 upstream web.luajit.me {
   server 127.0.0.1:8000;
+  keepalive 1000;
 }
 
 upstream compute.luajit.me {
   least_conn;
   # <COMPUTE_AMD64_IPV4_ADDRESS>
   server 127.0.0.1 down; # workaround for "no servers configured"
+  keepalive 1000;
 }
 
 proxy_cache_path /data/nginx/cache levels=1 keys_zone=luajit.me:1m;
@@ -26,10 +28,16 @@ server {
     application/wasm
     application/json;
   gzip_min_length 800;
-  location / { proxy_pass http://web.luajit.me; }
+  location / {
+    proxy_pass http://web.luajit.me;
+    proxy_http_version 1.1;
+    proxy_set_header Connection "";
+  }
   location /run {
     proxy_pass http://compute.luajit.me;
     proxy_next_upstream non_idempotent;
+    proxy_http_version 1.1;
+    proxy_set_header Connection "";
   }
   location /static {
     proxy_pass http://web.luajit.me;