nginx.conf.ctmpl

user nginx;
worker_processes auto;

error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;

events {
    worker_connections 65536;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;
    charset UTF-8;

    server {
        listen 80;
        location /health {
            # requires http_stub_status_module
            stub_status;
            allow 127.0.0.1;
            deny all;
        }
    }
}

stream {
    {{range services}}
    upstream {{.Name}} {
        least_conn;{{range service .Name}}
        server {{.Address}}:{{.Port}} max_fails=3 fail_timeout=60 weight=1;{{else}}
        server 0.0.0.1:80; # invalid placeholder{{end}}
    }{{range $index, $element := service .Name}}{{if eq $index 0}}
    server {
        listen {{.Port}};
        proxy_pass {{.Name}};
    }
    {{end}}{{end}}{{end}}
}