log_format json '{"@timestamp":"$time_iso8601","host":"$server_addr","client":"$remote_addr","protocol":"$protocol",'
                '"received":$bytes_received,"send":$bytes_sent,'
                '"backend":"$upstream_addr","status":"$status"}';

# map $ssl_preread_server_name $name {
#     backend.example.com     127.0.0.1:443;
#     default                 127.0.0.1:80;
# }
#
# server {
#     listen          8080;
#     proxy_pass      $name;
#     ssl_preread     on;
#
#     # access_log      /var/log/nginx/stream.access.log  json;
# }



# map $ssl_preread_alpn_protocols $proxy {
#     ~\bh2\b             172.17.0.1:8001;
#     ~\bhttp/1.1\b       127.0.0.1:443;
#     ~\bxmpp-client\b    172.17.0.1:8002;
# }
#
# server {
#     listen          8000;
#     proxy_pass      $proxy;
#     ssl_preread     on;
#
#     # access_log      /var/log/nginx/stream.access.log  json;
# }



# upstream tls {
#     server      127.0.0.1:443;
# }
#
# map $proxy_protocol_addr $dynamic {
#     "10.0.0.1"      172.17.0.1:22;
#     default         127.0.0.1:80;
# }
#
# server {
#     listen          8822 proxy_protocol;
#     proxy_ssl       off;
#     proxy_pass      $dynamic;
#     proxy_timeout   10m;
# }
#
# map $ssl_preread_protocol $upstream {
#     ""          127.0.0.1:8822;
#     "TLSv1.0"   tls;
#     "TLSv1.1"   tls;
#     "TLSv1.2"   tls;
#     "TLSv1.3"   tls;
#     default     tls;
# }
#
# server {
#     listen          8443;
#     # listen          10.0.0.1:8443;
#     proxy_pass      $upstream;
#     proxy_protocol  on;
#     ssl_preread     on;
#
#     # access_log      /var/log/nginx/stream.access.log  json;
# }



upstream debug {
    # hash        $remote_addr    consistent;
    # server     172.17.0.1:8456  max_fails=3 fail_timeout=30s;
    server     172.17.0.1:8457  max_fails=3 fail_timeout=30s;
    # server      unix:/tmp/backend.socket;
}

server{
    listen                  8457;
    proxy_connect_timeout   1s;
    proxy_timeout           3s;
    proxy_pass              debug;
    # proxy_pass              unix:/tmp/stream.socket;

    # access_log              /var/log/nginx/stream.access.log  json;
}



# server{
#     listen                  8081-8086;
#     proxy_connect_timeout   1s;
#     proxy_timeout           3s;
#     proxy_pass              10.0.0.2:$server_port;
# }