在`aws cloudformation deploy --parameter-overrides`中，如何将多个值传递给`List<AWS::EC2::Subnet::ID>`参数?

问题描述

我正在使用这个 CloudFormation 模板

我试图传递值的 List 参数是:

The List parameter I'm trying to pass values to is:

"Subnets" : {
  "Type" : "List<AWS::EC2::Subnet::Id>",
  "Description" : "The list of SubnetIds in your Virtual Private Cloud (VPC)",
  "ConstraintDescription" : "must be a list of at least two existing subnets associated with at least two different availability zones. They should be residing in the selected Virtual Private Cloud."
},

我写了一个看起来像这样的实用程序脚本:

I've written an utility script that looks like this:

#!/bin/bash
SUBNET1=subnet-abcdef
SUBNET2=subnet-ghijlm
echo -e "\n==Deploying stack.cf.yaml===\n"
aws cloudformation deploy \
  --region $REGION \
  --profile $CLI_PROFILE \
  --stack-name $STACK_NAME \
  --template-file stack.cf.json \
  --no-fail-on-empty-changeset \
  --capabilities CAPABILITY_NAMED_IAM \
  --parameter-overrides \
    VpcId=$VPC_ID \
    Subnets="$SUBNET1 $SUBNET2" \ #<---------------this fails
    InstanceType=$EC2_INSTANCE_TYPE \
    OperatorEMail=$OPERATOR_EMAIL \
    KeyName=$KEY_NAME \

如果我部署这个，一段时间后我的堆栈无法部署，说一个值为subnet-abcdef subnet-ghijlmn"的子网被不存在.

If I deploy this, after a while my stack fails to deploy saying that a Subnet with the value "subnet-abcdef subnet-ghijlmn" does not exist.

推荐答案

将参数传递给列表的正确方法是用逗号分隔它们

The correct way to pass parameters to list is to comma separate them

所以:

#!/bin/bash
SUBNET1=subnet-abcdef
SUBNET2=subnet-ghijlm
aws cloudformation deploy --parameter-overrides Subnets="$SUBNET1,SUBNET2"

会起作用

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