nginx.conf.tmpl

daemon off;

{{ get "/config" }}

http {

{{ $services := group (getrx "/service/.*") "^/service/([a-zA-Z0-9]+)/.*" }}

{{ range $service_name, $service := $services }}

  {{ $group_pattern := join "^/service/" $service_name "/([a-zA-Z0-9]+)/.*" }}

  {{ range $group_name, $group := group $service $group_pattern  }}
  
    upstream {{ $group_name }}-upstream {

    {{ take $group (join "^/service/" $service_name "/" $group_name "/upstream/config$") }}
    
    {{ $upstream_pattern := join "^/service/" $service_name "/" $group_name  "/upstream/([0-9]+)$" }}

    {{ range $host_name, $host := group $group $upstream_pattern }}

      {{ range $i, $upstream := values $host }}
        {{ $json := object $upstream }}
        server {{ $json.host }} {{ if $json.down }}down{{ end }};
      {{ end }}

    {{ end }}

    }

    {{ $server_pattern := join  "^/service/" $service_name "/" $group_name "/server/([a-zA-Z0-9]+)$" }}

    {{ range $i, $server := values (select $group $server_pattern) }}
      {{ $server }}
    {{ end }}

  {{ end }}

{{ end }}

}