* property: when override property with env var, convert key with upper case and replace '.' with '_', e.g. "sys.kafka.uri" to "SYS_KAFKA_URI",     due to dot is not supported by POSIX, especially not supported by alpine 3.6, https://bugs.alpinelinux.org/issues/7344
* property: when override property with env var, convert key with upper case and replace '.' with '_', e.g. "sys.kafka.uri" to "SYS_KAFKA_URI",
    due to dot is not supported by POSIX, especially not supported by alpine 3.6, https://bugs.alpinelinux.org/issues/7344

neowu/core-ng-demo-project,neowu/core-ng-demo-project