packer-cn/website/source/partials/builder/alicloud/ecs/_AlicloudAccessConfig-not-required.html.md

• skip_region_validation (bool) - The region validation can be skipped if this value is true, the default value is false.

• security_token (string) - STS access token, can be set through template or by exporting as environment variable such as export SECURITY_TOKEN=value.