[英]Execute Lambda from AWS SSM Automation with Parameters
I currently have a lambda function that updates a DynamoDB table with a value passed as a parameter.我目前有一个 lambda 函数,它使用作为参数传递的值更新 DynamoDB 表。 I am able to run the following within the Lambda console with a test parameter set to
"TEST"
:我能够在 Lambda 控制台中运行以下测试参数设置为
"TEST"
:
import boto3
import json
def lambda_handler(event, context):
# TODO implement
update_ami(event)
def update_ami(ami_id):
#DO STUFF
I am attempting to call this from an SSM Automation built from the following JSON document:我试图从以下 JSON 文档构建的 SSM 自动化中调用它:
{
"description":"Test Execute Lambda Function.",
"schemaVersion":"0.3",
"assumeRole":"MYARN",
"parameters":{},
"mainSteps":[
{
"name": "invokeMyLambdaFunction",
"action": "aws:invokeLambdaFunction",
"maxAttempts": 3,
"timeoutSeconds": 120,
"onFailure": "Abort",
"inputs": {
"FunctionName": "MyLambdaFunction",
"Payload": "TESTER"
}
}
]
}
Executing this automation results in the following error:执行此自动化会导致以下错误:
Automation Step Execution fails when it is invoking the lambda function. Get Exception from Invoke API of lambda Service. Exception Message from Invoke API: [Could not parse request body into json: Unrecognized token 'TESTER': was expecting ('true', 'false' or 'null')
I have also tried passing the Payload
input as a JSON object instead of a string, and adjusted my lambda method accordingly:我还尝试将
Payload
输入作为 JSON 对象而不是字符串传递,并相应地调整了我的 lambda 方法:
JSON Automation: JSON 自动化:
...
"inputs": {
"FunctionName": "MyLambdaFunction",
"Payload": {
"ami_id": "AMI-TESTER"
}
}
...
Lambda Python:拉姆达Python:
def lambda_handler(event, context):
# TODO implement
update_ami(event['ami-id'])
This results in the following error coming from the Automation Document editor within the SSM console:这会导致 SSM 控制台中的自动化文档编辑器出现以下错误:
Input {ami_id=TESTER} is of type class java.util.LinkedHashMap, but expected type is String.
So in a nutshell... How do I pass a single string from an Automation document to a Lambda Function?简而言之......如何将自动化文档中的单个字符串传递给 Lambda 函数?
The error which is shown below looks to be issue with payload not passed as string:下面显示的错误看起来是负载未作为字符串传递的问题:
Input {ami_id=TESTER} is of type class java.util.LinkedHashMap, but expected type is String
Please try to use escape character before double quotes.请尝试在双引号前使用转义字符。
"inputs": {
"FunctionName": "MyLambdaFunction",
"Payload": "{
\"ami_id\": \"AMI-TESTER\"
}"
}
AWS has provided proper syntax, if you see this Url AWS 提供了正确的语法,如果你看到这个 Url
{
"name":"updateSsmParam",
"action":"aws:invokeLambdaFunction",
"timeoutSeconds":1200,
"maxAttempts":1,
"onFailure":"Abort",
"inputs":{
"FunctionName":"Automation-UpdateSsmParam",
"Payload":"{\"parameterName\":\"latestAmi\", \"parameterValue\":\"{{createImage.ImageId}}\"}"
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.