Json 尝试将参数从主模板传递到子模板
我试图将列表参数从主模板传递到子模板，但遇到两个错误。。这些是我在主模板上的当前参数Json 尝试将参数从主模板传递到子模板,json,amazon-web-services,amazon-cloudformation,troposphere,Json,Amazon Web Services,Amazon Cloudformation,Troposphere,我试图将列表参数从主模板传递到子模板，但遇到两个错误。。这些是我在主模板上的当前参数 "Parameters": { "ELBSubnets": { "Default": "subnet-5d8fea67,subnet-3e35cf15", "Type": "CommaDelimitedList" }, "LCKeyPair": { "Default": "key-master", "Type": "Stri
"Parameters": {
"ELBSubnets": {
"Default": "subnet-5d8fea67,subnet-3e35cf15",
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Default": "key-master",
"Type": "String"
},
"LCSecurityGroups": {
"Default": "sg-10a15c74,sg-880e5fec",
"Type": "CommaDelimitedList"
}
},
"ChildTempate1": {
"Properties": {
"Parameters": {
"ELBSubnets": {
"Ref": "ELBSubnets"
},
"KeyPair": {
"Ref": "LCKeyPair"
},
"LCSecurityGroups": {
"Ref": "LCSecurityGroups"
}
},
"KeyName": {
"Ref": "LCKeyPair"
},
"SecurityGroups": {
"Fn::Join": [
",",
[
{
"Ref": "LCSecurityGroups"
}
]
]
}
},
"Subnets": {
"Fn::Join": [
",",
[
{
"Ref": "ELBSubnets"
}
]
]
}
},
"Parameters": {
"ELBSubnets": {
"Fn::Join": [
",",
{
"Ref": "ELBSubnets"
}
]
},
"LCKeyPair": {
"Fn::Join": [
" ",
{
"Ref": "LCKeyPair"
}
]
},
"LCSecurityGroups": {
"Fn::Join": [
",",
{
"Ref": "LCSecurityGroups"
}
]
}
},
Subnets": {
"Ref": "ELBSubnets"
}
"Parameters": {
"ELBSubnets": {
"Default": "subnet-5d8fea67,subnet-3e35cf15",
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Default": "key-master",
"Type": "String"
},
"LCSecurityGroups": {
"Default": "sg-10a15c74,sg-880e5fec",
"Type": "CommaDelimitedList"
}
},
"ChildTempate1": {
"Properties": {
"Parameters": {
"ELBSubnets": {
"Ref": "ELBSubnets"
},
"KeyPair": {
"Ref": "LCKeyPair"
},
"LCSecurityGroups": {
"Ref": "LCSecurityGroups"
}
},
"KeyName": {
"Ref": "LCKeyPair"
},
"SecurityGroups": {
"Fn::Join": [
",",
[
{
"Ref": "LCSecurityGroups"
}
]
]
}
},
"Subnets": {
"Fn::Join": [
",",
[
{
"Ref": "ELBSubnets"
}
]
]
}
},
"Parameters": {
"ELBSubnets": {
"Fn::Join": [
",",
{
"Ref": "ELBSubnets"
}
]
},
"LCKeyPair": {
"Fn::Join": [
" ",
{
"Ref": "LCKeyPair"
}
]
},
"LCSecurityGroups": {
"Fn::Join": [
",",
{
"Ref": "LCSecurityGroups"
}
]
}
},
Subnets": {
"Ref": "ELBSubnets"
}
"Parameters": {
"ELBSubnets": {
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Type": "String"
},
"LCSecurityGroups": {
"Type": "CommaDelimitedList"
}
},
"Parameters": {
"ELBSubnets": {
"Default": "subnet-5d8fea67,subnet-3e35cf15",
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Default": "key-master",
"Type": "String"
},
"LCSecurityGroups": {
"Default": "sg-10a15c74,sg-880e5fec",
"Type": "CommaDelimitedList"
}
},
"ChildTempate1": {
"Properties": {
"Parameters": {
"ELBSubnets": {
"Ref": "ELBSubnets"
},
"KeyPair": {
"Ref": "LCKeyPair"
},
"LCSecurityGroups": {
"Ref": "LCSecurityGroups"
}
},
"KeyName": {
"Ref": "LCKeyPair"
},
"SecurityGroups": {
"Fn::Join": [
",",
[
{
"Ref": "LCSecurityGroups"
}
]
]
}
},
"Subnets": {
"Fn::Join": [
",",
[
{
"Ref": "ELBSubnets"
}
]
]
}
},
"Parameters": {
"ELBSubnets": {
"Fn::Join": [
",",
{
"Ref": "ELBSubnets"
}
]
},
"LCKeyPair": {
"Fn::Join": [
" ",
{
"Ref": "LCKeyPair"
}
]
},
"LCSecurityGroups": {
"Fn::Join": [
",",
{
"Ref": "LCSecurityGroups"
}
]
}
},
Subnets": {
"Ref": "ELBSubnets"
}
"Parameters": {
"ELBSubnets": {
"Default": "subnet-5d8fea67,subnet-3e35cf15",
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Default": "key-master",
"Type": "String"
},
"LCSecurityGroups": {
"Default": "sg-10a15c74,sg-880e5fec",
"Type": "CommaDelimitedList"
}
},
"ChildTempate1": {
"Properties": {
"Parameters": {
"ELBSubnets": {
"Ref": "ELBSubnets"
},
"KeyPair": {
"Ref": "LCKeyPair"
},
"LCSecurityGroups": {
"Ref": "LCSecurityGroups"
}
},
"KeyName": {
"Ref": "LCKeyPair"
},
"SecurityGroups": {
"Fn::Join": [
",",
[
{
"Ref": "LCSecurityGroups"
}
]
]
}
},
"Subnets": {
"Fn::Join": [
",",
[
{
"Ref": "ELBSubnets"
}
]
]
}
},
"Parameters": {
"ELBSubnets": {
"Fn::Join": [
",",
{
"Ref": "ELBSubnets"
}
]
},
"LCKeyPair": {
"Fn::Join": [
" ",
{
"Ref": "LCKeyPair"
}
]
},
"LCSecurityGroups": {
"Fn::Join": [
",",
{
"Ref": "LCSecurityGroups"
}
]
}
},
Subnets": {
"Ref": "ELBSubnets"
}
"Parameters": {
"ELBSubnets": {
"Default": "subnet-5d8fea67,subnet-3e35cf15",
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Default": "key-master",
"Type": "String"
},
"LCSecurityGroups": {
"Default": "sg-10a15c74,sg-880e5fec",
"Type": "CommaDelimitedList"
}
},
"ChildTempate1": {
"Properties": {
"Parameters": {
"ELBSubnets": {
"Ref": "ELBSubnets"
},
"KeyPair": {
"Ref": "LCKeyPair"
},
"LCSecurityGroups": {
"Ref": "LCSecurityGroups"
}
},
"KeyName": {
"Ref": "LCKeyPair"
},
"SecurityGroups": {
"Fn::Join": [
",",
[
{
"Ref": "LCSecurityGroups"
}
]
]
}
},
"Subnets": {
"Fn::Join": [
",",
[
{
"Ref": "ELBSubnets"
}
]
]
}
},
"Parameters": {
"ELBSubnets": {
"Fn::Join": [
",",
{
"Ref": "ELBSubnets"
}
]
},
"LCKeyPair": {
"Fn::Join": [
" ",
{
"Ref": "LCKeyPair"
}
]
},
"LCSecurityGroups": {
"Fn::Join": [
",",
{
"Ref": "LCSecurityGroups"
}
]
}
},
Subnets": {
"Ref": "ELBSubnets"
}
这两个模板都可以在这里找到：所以我之前的答案有点让人困惑——但我认为基本原理仍然有效。最后，当在需要列表的参数中使用CommaDelimitedList时，您不必将其加入（）。我刚刚看了你最近对你分享的回购协议的更新，我认为你的思路是正确的。如果你需要更多的帮助，请告诉我 问题是，在CommaDelimitedList上使用Ref时，您传递一个列表，因此它传递“[a，b，c]”而不是“a，b，c” 因此，在主模板上，我使用Join（“，”）传递列表，并使用Join（“”）传递字符串。这样，它们被引用为“a、b、c”和“字符串” 在子模板上，我已将列表的参数设置为CommadeLimitedList，并将字符串中的字符串设置为CommadeLimitedList。这是因为它们从主模板传递的方式
"Parameters": {
"ELBSubnets": {
"Default": "subnet-5d8fea67,subnet-3e35cf15",
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Default": "key-master",
"Type": "String"
},
"LCSecurityGroups": {
"Default": "sg-10a15c74,sg-880e5fec",
"Type": "CommaDelimitedList"
}
},
"ChildTempate1": {
"Properties": {
"Parameters": {
"ELBSubnets": {
"Ref": "ELBSubnets"
},
"KeyPair": {
"Ref": "LCKeyPair"
},
"LCSecurityGroups": {
"Ref": "LCSecurityGroups"
}
},
"KeyName": {
"Ref": "LCKeyPair"
},
"SecurityGroups": {
"Fn::Join": [
",",
[
{
"Ref": "LCSecurityGroups"
}
]
]
}
},
"Subnets": {
"Fn::Join": [
",",
[
{
"Ref": "ELBSubnets"
}
]
]
}
},
"Parameters": {
"ELBSubnets": {
"Fn::Join": [
",",
{
"Ref": "ELBSubnets"
}
]
},
"LCKeyPair": {
"Fn::Join": [
" ",
{
"Ref": "LCKeyPair"
}
]
},
"LCSecurityGroups": {
"Fn::Join": [
",",
{
"Ref": "LCSecurityGroups"
}
]
}
},
Subnets": {
"Ref": "ELBSubnets"
}
"Parameters": {
"ELBSubnets": {
"Default": "subnet-5d8fea67,subnet-3e35cf15",
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Default": "key-master",
"Type": "CommaDelimitedList"
},
"LCSecurityGroups": {
"Default": "sg-10a15c74,sg-880e5fec",
"Type": "CommaDelimitedList"
}
},
"Parameters": {
"ELBSubnets": {
"Default": "subnet-5d8fea67,subnet-3e35cf15",
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Default": "key-master",
"Type": "String"
},
"LCSecurityGroups": {
"Default": "sg-10a15c74,sg-880e5fec",
"Type": "CommaDelimitedList"
}
},
"ChildTempate1": {
"Properties": {
"Parameters": {
"ELBSubnets": {
"Ref": "ELBSubnets"
},
"KeyPair": {
"Ref": "LCKeyPair"
},
"LCSecurityGroups": {
"Ref": "LCSecurityGroups"
}
},
"KeyName": {
"Ref": "LCKeyPair"
},
"SecurityGroups": {
"Fn::Join": [
",",
[
{
"Ref": "LCSecurityGroups"
}
]
]
}
},
"Subnets": {
"Fn::Join": [
",",
[
{
"Ref": "ELBSubnets"
}
]
]
}
},
"Parameters": {
"ELBSubnets": {
"Fn::Join": [
",",
{
"Ref": "ELBSubnets"
}
]
},
"LCKeyPair": {
"Fn::Join": [
" ",
{
"Ref": "LCKeyPair"
}
]
},
"LCSecurityGroups": {
"Fn::Join": [
",",
{
"Ref": "LCSecurityGroups"
}
]
}
},
Subnets": {
"Ref": "ELBSubnets"
}
"Parameters": {
"ELBSubnets": {
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Type": "String"
},
"LCSecurityGroups": {
"Type": "CommaDelimitedList"
}
},
"Parameters": {
"ELBSubnets": {
"Default": "subnet-5d8fea67,subnet-3e35cf15",
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Default": "key-master",
"Type": "String"
},
"LCSecurityGroups": {
"Default": "sg-10a15c74,sg-880e5fec",
"Type": "CommaDelimitedList"
}
},
"ChildTempate1": {
"Properties": {
"Parameters": {
"ELBSubnets": {
"Ref": "ELBSubnets"
},
"KeyPair": {
"Ref": "LCKeyPair"
},
"LCSecurityGroups": {
"Ref": "LCSecurityGroups"
}
},
"KeyName": {
"Ref": "LCKeyPair"
},
"SecurityGroups": {
"Fn::Join": [
",",
[
{
"Ref": "LCSecurityGroups"
}
]
]
}
},
"Subnets": {
"Fn::Join": [
",",
[
{
"Ref": "ELBSubnets"
}
]
]
}
},
"Parameters": {
"ELBSubnets": {
"Fn::Join": [
",",
{
"Ref": "ELBSubnets"
}
]
},
"LCKeyPair": {
"Fn::Join": [
" ",
{
"Ref": "LCKeyPair"
}
]
},
"LCSecurityGroups": {
"Fn::Join": [
",",
{
"Ref": "LCSecurityGroups"
}
]
}
},
Subnets": {
"Ref": "ELBSubnets"
}
我也应该能够将列表作为子模板上的列表传递，但是随后我收到错误“未知参数类型：列表”CommadeLimitdList只能解析一次，因此在父模板中，需要将类型设置为“字符串”，然后在子模板中，和以前一样，将其保留为CommaDelimitedList
问题发生了，因为CloudFormation正在解析父模板中的CommaDelimitedList，然后又试图在子模板中再次解析它。我已经照你说的做了。我已经删除了所有的“加入”，正如你所说的，它们是不需要的，这是我一开始的想法。然而，我再次得到“属性参数的值必须是具有字符串（或简单类型）属性的对象”。我已经在子模板和主模板上删除了它们。好的-这是在您尝试编译模板时发生的，还是在您尝试将其推入CloudFormation时发生的？对您的repo中的代码进行了一些快速测试，我可以看到模板编译得很好，所以这是一个带有CloudFormation的问题。给我一点时间，我会尝试复制一个我可以成功启动这些模板的环境，然后我会看看我是否能找出这里的问题。好的，我把它弄得有点乱，我已经让你克服了一些最初的问题-你可以在这里从你的来源看到我的差异：现在，它仍然失败，但这个错误更容易处理：模板错误：模板的“映射”部分中不存在名为“AMIMap”的映射。这是在创建子模板时完成的-您很可能只需要清理一些命名错误的值。记住——资源的名称和python对象的名称可以是不同的。请参阅我对您的KeyPair所做的更改。顺便说一句，“何时使用联接”位的关键是，当父级接受一个参数作为CommaDelimitedList时，它会将该参数转换为一个列表。当您将其传递给子级时，它将获得列表-但参数需要一个CommaDelimitedList，这是一个可以转换为列表的字符串-因此父级需要重新加入列表以传递它。这是非常令人困惑的，老实说，这是我停止使用嵌套堆栈的许多原因之一，相反，我尝试保持我的堆栈在CloudFormation方面是分开的，但是处理与代码的关系（比如stacker）。这对我来说是行得通的，但只有在创建两个新堆栈时（不使用模板S3URL指定的现有堆栈）和/或未在子模板上设置默认值时。可能需要将其作为bug提交给AWS。
"Parameters": {
"ELBSubnets": {
"Default": "subnet-5d8fea67,subnet-3e35cf15",
"Type": "CommaDelimitedList"
},
"LCKeyPair": {
"Default": "key-master",
"Type": "String"
},
"LCSecurityGroups": {
"Default": "sg-10a15c74,sg-880e5fec",
"Type": "CommaDelimitedList"
}
},
"ChildTempate1": {
"Properties": {
"Parameters": {
"ELBSubnets": {
"Ref": "ELBSubnets"
},
"KeyPair": {
"Ref": "LCKeyPair"
},
"LCSecurityGroups": {
"Ref": "LCSecurityGroups"
}
},
"KeyName": {
"Ref": "LCKeyPair"
},
"SecurityGroups": {
"Fn::Join": [
",",
[
{
"Ref": "LCSecurityGroups"
}
]
]
}
},
"Subnets": {
"Fn::Join": [
",",
[
{
"Ref": "ELBSubnets"
}
]
]
}
},
"Parameters": {
"ELBSubnets": {
"Fn::Join": [
",",
{
"Ref": "ELBSubnets"
}
]
},
"LCKeyPair": {
"Fn::Join": [
" ",
{
"Ref": "LCKeyPair"
}
]
},
"LCSecurityGroups": {
"Fn::Join": [
",",
{
"Ref": "LCSecurityGroups"
}
]
}
},
Subnets": {
"Ref": "ELBSubnets"
}