nginx-stream.tmpl

# Example template of how to use Nginx to load balance TCP and UDP.
user www-data;
worker_processes auto;
pid /run/nginx.pid;

events {
    use epoll;
    worker_connections 2048;
    multi_accept on;
}
stream {
    {{- range $appid, $app := .Apps}}
    {{- range $id, $definition := $app.PortDefinitions}}
    upstream {{index $app.Hosts 0}}-{{ $id }} {
        {{- range $task := $app.Tasks}}
        server {{ $task.Host }}:{{ index $task.Ports $id }};
        {{- end}}
    }
    server {
        {{- if eq $definition.Protocol "tcp" }}
        listen {{ $definition.Port}};
        {{- else }}
        listen {{ $definition.Port}} {{ $definition.Protocol }};
        {{- end}}
        proxy_pass {{index $app.Hosts 0 }}-{{ $id }};
    }
    {{- end}}
    {{- end}}
}