server {
  listen 8082;

  location ~ ^/catalog/services/([^/]+)/environments/([^/]+)/target$ {
    content_by_lua_block {
       local service = ngx.var[1]
       local variant = ngx.var[2]
       ngx.log(ngx.DEBUG, "Service Catalog request for service = " .. (ngx.var[1] or "<NONE>") .. " and variant = " .. (ngx.var[2] or ""))

       local catalog = require "custom/catalog"
       if (catalog[service] ~= nil) then
         local variants = catalog[service]
         if (variants[variant] ~= nil) then
           ngx.print(variants[variant])
           ngx.exit(ngx.HTTP_OK)
         else
           -- is there a default environment ?
           if (variants._default ~= nil) then
             ngx.print(variants._default)
             ngx.exit(ngx.HTTP_OK)
           else
             ngx.status = 404 -- Status needs to be set before the body
             ngx.print("") -- Prevent default NGINX Error Page
             ngx.exit(ngx.HTTP_NOT_FOUND)
           end
         end
       else
         ngx.status = 404 -- Status needs to be set before the body
         ngx.print("") -- Prevent default NGINX Error Page
         ngx.exit(ngx.HTTP_NOT_FOUND)
       end
    }
  }

}