无法连接golang docker应用程序中部署在fly.io中的Mariadb

我有一个在AWS中运行的MariadB服务器。我已经在运行实例中启用了3306的防火墙规则，当我在Heroku中部署Golang应用程序时，我能够从部署的Heroku应用程序中获得API响应。但是，当我在fly.io中部署同一个Golang应用程序时，我无法从fly.io.io.io.io.please上获得API结果。/appworkdir/atraun cgo_enabled = 0 Goos = linux go build -o app cmd/server/main.gofrom alpine：最新作为productionCophy -from = builder = builder/app .cmd [./app“./app" fly.tml# fly.toml.toml.toml.toml.toml.toml.toml.toml为{我在此处使用我的应用名称}生成的文件}在2022-05-21T09：08：25+05：30app =“ {我在此处使用我的应用名称}” kill_signal =“ sigint” sigint =“ kill_timeout” kill_timeout = 5processes = [5processes = [] [] [] [][实验] wellow_public_ports = [] auto_rollback = true [[[服务]]=“ connections” [[services.ports]] force_https = true handlers = [“ http”] port = 80 [[services.ports]] handlers = [“ tls”，“ http”] port = 443 [[services.tcp_checks]] grace_period =“ 1s”间隔=“ 15S” restart_limit = 0 timeout =“ 2s”