使用“aws lambda invoke”时在localstack上出现“无效参考格式”错误

编程问答 2022-05-28

问题描述

我正在使用 localstack/terraform/aws（最新版本）在本地 aws 上使用 lambda。可以在此处找到配置 https://github.com/wentao-daommo/aws-local

虽然我可以成功设置/部署所有内容并通过“aws lambda list-functions”列出我的 lambda 函数。我无法使用命令调用该函数

aws --endpoint-url=http://localhost:4566 lambda invoke --function-name=handler --payload='' test.json

从命令行，我收到错误

{
    "StatusCode": 200,"FunctionError": "Unhandled","LogResult": "","ExecutedVersion": "$LATEST"
}

从localstack，我看到了这个错误信息，我完全不明白

localstack_1  | ERROR: 'docker create --rm --name "localstack_lambda_arn_aws_lambda_us-east-1_000000000000_function_handler" --entrypoint /bin/bash  --interactive -e AWS_LAMBDA_EVENT_BODY="$AWS_LAMBDA_EVENT_BODY" -e HOSTNAME="$HOSTNAME" -e LOCALSTACK_HOSTNAME="$LOCALSTACK_HOSTNAME" -e EDGE_PORT="$EDGE_PORT"  -e AWS_LAMBDA_EVENT_BODY='{}' -e LOCALSTACK_HOSTNAME=192.168.65.2 -e EDGE_PORT=4566 -e _HANDLER=exports.handler -e AWS_LAMBDA_FUNCTION_TIMEOUT=3 -e AWS_LAMBDA_FUNCTION_NAME=handler -e AWS_LAMBDA_FUNCTION_VERSION='$LATEST' -e AWS_LAMBDA_FUNCTION_INVOKED_ARN=arn:aws:lambda:us-east-1:000000000000:function:handler -e AWS_LAMBDA_COGNITO_IDENTITY='{}' -e _LAMBDA_SERVER_PORT=5002     "lambci/lambda:"': exit code 1; output: b'invalid reference format\n'
localstack_1  | 2021-01-26T04:08:07:INFO:localstack.services.awslambda.lambda_api: Error executing Lambda function arn:aws:lambda:us-east-1:000000000000:function:handler: Command 'docker create --rm --name "localstack_lambda_arn_aws_lambda_us-east-1_000000000000_function_handler" --entrypoint /bin/bash  --interactive -e AWS_LAMBDA_EVENT_BODY="$AWS_LAMBDA_EVENT_BODY" -e HOSTNAME="$HOSTNAME" -e LOCALSTACK_HOSTNAME="$LOCALSTACK_HOSTNAME" -e EDGE_PORT="$EDGE_PORT"  -e AWS_LAMBDA_EVENT_BODY='{}' -e LOCALSTACK_HOSTNAME=192.168.65.2 -e EDGE_PORT=4566 -e _HANDLER=exports.handler -e AWS_LAMBDA_FUNCTION_TIMEOUT=3 -e AWS_LAMBDA_FUNCTION_NAME=handler -e AWS_LAMBDA_FUNCTION_VERSION='$LATEST' -e AWS_LAMBDA_FUNCTION_INVOKED_ARN=arn:aws:lambda:us-east-1:000000000000:function:handler -e AWS_LAMBDA_COGNITO_IDENTITY='{}' -e _LAMBDA_SERVER_PORT=5002     "lambci/lambda:"' returned non-zero exit status 1. Traceback (most recent call last):
localstack_1  |   File "/opt/code/localstack/localstack/services/awslambda/lambda_api.py",line 550,in run_lambda
localstack_1  |     result = LAMBDA_EXECUTOR.execute(func_arn,func_details,event,context=context,localstack_1  |   File "/opt/code/localstack/localstack/services/awslambda/lambda_executors.py",line 178,in execute
localstack_1  |     return do_execute()
localstack_1  |   File "/opt/code/localstack/localstack/services/awslambda/lambda_executors.py",line 170,in do_execute
localstack_1  |     return _run(func_arn=func_arn)
localstack_1  |   File "/opt/code/localstack/localstack/utils/cloudwatch/cloudwatch_util.py",line 149,in wrapped
localstack_1  |     raise e
localstack_1  |   File "/opt/code/localstack/localstack/utils/cloudwatch/cloudwatch_util.py",line 145,in wrapped
localstack_1  |     result = func(*args,**kwargs)
localstack_1  |   File "/opt/code/localstack/localstack/services/awslambda/lambda_executors.py",line 161,in _run
localstack_1  |     raise e
localstack_1  |   File "/opt/code/localstack/localstack/services/awslambda/lambda_executors.py",in _run
localstack_1  |     result = self._execute(func_arn,context,version)
localstack_1  |   File "/opt/code/localstack/localstack/services/awslambda/lambda_executors.py",line 399,in _execute
localstack_1  |     return super(LambdaExecutorReuseContainers,self)._execute(func_arn,*args,line 323,in _execute
localstack_1  |     cmd = self.prepare_execution(func_details,environment,command)
localstack_1  |   File "/opt/code/localstack/localstack/services/awslambda/lambda_executors.py",line 366,in prepare_execution
localstack_1  |     container_info = self.prime_docker_container(func_details,env_vars.items(),lambda_cwd)
localstack_1  |   File "/opt/code/localstack/localstack/services/awslambda/lambda_executors.py",line 474,in prime_docker_container
localstack_1  |     run(cmd)
localstack_1  |   File "/opt/code/localstack/localstack/utils/common.py",line 1312,in run
localstack_1  |     return do_run(cmd)
localstack_1  |   File "/opt/code/localstack/localstack/utils/common.py",line 1309,in do_run
localstack_1  |     return bootstrap.run(cmd,**kwargs)
localstack_1  |   File "/opt/code/localstack/localstack/utils/bootstrap.py",line 656,in run
localstack_1  |     raise e
localstack_1  |   File "/opt/code/localstack/localstack/utils/bootstrap.py",line 616,in run
localstack_1  |     output = subprocess.check_output(cmd,shell=True,stderr=stderr,env=env_dict,cwd=cwd)
localstack_1  |   File "/usr/lib/python3.8/subprocess.py",line 411,in check_output
localstack_1  |     return run(*popenargs,stdout=PIPE,timeout=timeout,check=True,localstack_1  |   File "/usr/lib/python3.8/subprocess.py",line 512,in run
localstack_1  |     raise CalledProcessError(retcode,process.args,localstack_1  | subprocess.CalledProcessError: Command 'docker create --rm --name "localstack_lambda_arn_aws_lambda_us-east-1_000000000000_function_handler" --entrypoint /bin/bash  --interactive -e AWS_LAMBDA_EVENT_BODY="$AWS_LAMBDA_EVENT_BODY" -e HOSTNAME="$HOSTNAME" -e LOCALSTACK_HOSTNAME="$LOCALSTACK_HOSTNAME" -e EDGE_PORT="$EDGE_PORT"  -e AWS_LAMBDA_EVENT_BODY='{}' -e LOCALSTACK_HOSTNAME=192.168.65.2 -e EDGE_PORT=4566 -e _HANDLER=exports.handler -e AWS_LAMBDA_FUNCTION_TIMEOUT=3 -e AWS_LAMBDA_FUNCTION_NAME=handler -e AWS_LAMBDA_FUNCTION_VERSION='$LATEST' -e AWS_LAMBDA_FUNCTION_INVOKED_ARN=arn:aws:lambda:us-east-1:000000000000:function:handler -e AWS_LAMBDA_COGNITO_IDENTITY='{}' -e _LAMBDA_SERVER_PORT=5002     "lambci/lambda:"' returned non-zero exit status 1.

请帮忙。谢谢！

解决方法

您的处理程序不正确并且您缺少运行时。我还建议使用以下形式的标准 main.js：

exports.handler = async (event) => {
    return {
        statusCode: 200,body: JSON.stringify("Hi from lambda on localstack")
    }
};

那么，您的 aws_lambda_function 和正确的 handler 和 runtime 应该是：

resource "aws_lambda_function" "lambda" {
  filename      = "lambda_file.zip"
  function_name = "handler"
  runtime       = "nodejs12.x"
  role          = aws_iam_role.iam_for_lambda.arn
  handler       = "main.handler"
  source_code_hash = filebase64sha256(data.archive_file.lambda_file.output_path)
}
amazon-web-servicesaws-clilocalstackterraform