如何解决如何在 AWS SAM 状态机定义中使用多行参数?
我有一个很长但重复的 json 格式的状态机定义,我正在尝试使用状态机块的 DefinitionSubstitutions 属性将一些公共块提取到 AWS SAM 模板中。例如,我有一个 Retry
政策,如下所示:
{
"StartAt": "Generate Config","States": {
"Generate Config": {
"Type": "Task","Resource": "${GenerateConfigFunctionArn}","Retry": [
{
"ErrorEquals": [
"States.TaskFailed"
],"IntervalSeconds": 15,"MaxAttempts": 5,"BackoffRate": 1.5
}
],"Next": "Process basins"
},...
我想像这样将重试块提取到 AWS SAM 模板中:
AWstemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31
Resources:
PredictiveAnalyticsPipelineorchestration:
Type: AWS::Serverless::StateMachine
Properties:
DeFinitionUri: stateMachine/deFinition.asl.json
DeFinitionSubstitutions:
GenerateConfigFunctionArn: !GetAtt GenerateConfigFunction.Arn
RetryPolicy: |
[
{
"ErrorEquals": [
"States.ALL"
],"IntervalSeconds": 10,"MaxAttempts": 2,"BackoffRate": 1.5
}
]
...
所以上面变成:
{
"StartAt": "Generate Config","Retry": "${RetryPolicy}",...
但是,当我运行 aws deploy
时出现错误:
Resource handler returned message: "Invalid State Machine DeFinition:
'INVALID_JSON_DESCRIPTION: Illegal unquoted character ((CTRL-CHAR,code 10)):
has to be escaped using backslash to be included in string value
我不明白我做错了什么。
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