我有一个CloudFormation模板,创建一个SNS主题和订阅
{
"AWSTemplateFormatVersion": "2010-09-09",
"Resources" : {
"EmailSNSTopic": {
"Type" : "AWS::SNS::Topic",
"Properties" : {
"DisplayName" : "${display_name}"
}
},
"MySubscription": {
"Type": "AWS::SNS::Subscription",
"Properties": {
"TopicArn" : { "Ref" : "EmailSNSTopic" },
"${details}"
}
}
},
"Outputs" : {
"ARN" : {
"Description" : "Email SNS Topic ARN",
"Value" : { "Ref" : "EmailSNSTopic" }
}
}
}
我正试图通过平台呼叫。
但是我一直得到这个错误Error: "template_body" contains an invalid JSON: invalid character '{' looking for beginning of object key string
我的Terraform配置是这样的。
provider "aws" {
region = "eu-west-2"
}
data "template_file" "sns_stack" {
template = file("${path.module}/templates/email-sns-stack.json.tpl")
vars = {
display_name = var.display_name
details = join(",", formatlist("{ "Endpoint": "%s", "Protocol": "%s" }", var.email_list, var.protocol))
}
}
resource "aws_cloudformation_stack" "sns_topic" {
name = var.stack_name
template_body = data.template_file.sns_stack.rendered
tags = merge(
map("Name", var.stack_name)
)
}
我的variables.tf
是这样的
default = "Admin"
}
variable "email_list" {
default = [
"foo@foo.com",
"bar@bar.com"
]
}
variable "protocol" {
default = "email"
}
variable "stack_name" {
default = "sns-test"
}
我希望${details}
应该吐出我的端点和协议,但它没有。
我做错了什么?
您想要实现的目标相当复杂,但却是可行的。你可以使用下面的模板:
{
"AWSTemplateFormatVersion": "2010-09-09",
"Resources" : ${jsonencode(
merge({for idx, email_address in email_list:
"EmailSubs${idx}" => {
Type = "AWS::SNS::Subscription"
Properties = {
"Endpoint" = email_address
"Protocol" = protocol
"TopicArn" = { "Ref" = "EmailSNSTopic" }
}
}},
{
"EmailSNSTopic" = {
"Type" = "AWS::SNS::Topic",
"Properties" = {
"DisplayName" = "${display_name}"
}
}}
))},
"Outputs" : {
"ARN" : {
"Description" : "Email SNS Topic ARN",
"Value" : { "Ref" : "EmailSNSTopic" }
}
}
}
和TF代码:
locals {
template_body = templatefile("./email-sns-stack2.json.tpl", {
display_name = var.display_name
email_list = var.email_list
protocol = var.protocol
})
}
resource "aws_cloudformation_stack" "sns_topic" {
name = var.stack_name
template_body = local.template_body
tags = merge(
map("Name", var.stack_name)
)
}