amazon-web-services - "DependsOn": [] means in cloudformation 是什么意思

Question

我正在使用 AWS 提供的模板，该模板在嵌套堆栈调用中使用 "DependsOn": []。我知道dependon可以有一个依赖列表，但从未遇到过这个。

BucketsStack": {
        "DependsOn": [],
        "Properties": {
            "Parameters": {
                "CreateDemonstration": {
                    "Ref": "CreateDemonstration"
                },

Answer 1

删除它，因为它是一个空数组，所以它没有用。

事实上，DependsOn 会影响资源创建的顺序。

以下内容来自official documentation 。

With the DependsOn attribute you can specify that the creation of a specific resource follows another. When you add a DependsOn attribute to a resource, that resource is created only after the creation of the resource specified in the DependsOn attribute.