Error when running sam local invoke (Sandbox.Failure)

[gustavofreze]

I'm building and then invoking my lambda function locally. When I do this, I encounter the error log below:

2023-12-12 02:22:12,867 | Starting a timer for 10 seconds for function 'Xpto'                                                                               
START RequestId: aa44dfa6-ec8f-4149-a65e-98e75e84458e Version: $LATEST
11 Dec 2023 23:22:13,330 [ERROR] (rapid) Init failed InvokeID= error=Runtime exited without providing a reason
11 Dec 2023 23:22:13,330 [ERROR] (rapid) Invoke failed error=Runtime exited without providing a reason InvokeID=b17a6eea-8d8f-4ee6-bbd7-db0a8de2fb96
11 Dec 2023 23:22:13,331 [ERROR] (rapid) Invoke DONE failed: Sandbox.Failure
2023-12-12 02:22:13,333 | Failed to deserialize response from RIE, returning the raw response as is 

I didn't find any specific references on how to proceed.

I will provide what I believe is relevant to the problem. I've already checked that main.py is not being called. That is, the error occurs before executing the code.

Project structure:

xpto/
┣ .aws/
┣ .aws-sam/
┣ event/
┣ src/
┃ ┗ main.py
┣ Dockerfile
┣ Makefile
┣ requirements.txt
┣ samconfig.toml
┗ template.yml

My Dockerfile:

FROM python:3.11-alpine

ENV AWS_PROFILE="default"
ENV AWS_CONFIG_FILE="/app/.aws/config"
ENV SAM_CLI_TELEMETRY=0

ENV VIRTUAL_ENV="/opt/venv"
ENV PATH="${VIRTUAL_ENV}/bin:${PATH}"
ENV PIP_PATH="${VIRTUAL_ENV}/bin/pip"

WORKDIR /app

COPY src src
COPY .aws .aws
COPY requirements.txt requirements.txt

RUN python -m venv ${VIRTUAL_ENV} \
    && ${PIP_PATH} install --no-cache-dir --upgrade pip \
    && ${PIP_PATH} install --no-cache-dir --upgrade wheel awscli aws-sam-cli \
    && ${PIP_PATH} install --no-cache-dir --upgrade -r requirements.txt

CMD ["python", "-m", "src.main"]

My template.yml:

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31

Globals:
  Function:
    Timeout: 10
    MemorySize: 1024

Resources:
  Xpto:
    Type: AWS::Serverless::Function
    Properties:
      Layers:
        - !Ref Dependencies
      Runtime: python3.11
      ImageUri: xpto:latest
      PackageType: Image
      FunctionName: xpto
      Architectures:
        - x86_64
      Events:
        AtEveryMinute:
          Type: Schedule
          Properties:
            Enabled: true
            ScheduleExpression: rate(1 minute)
      Environment:
        Variables:
          TZ: "America/Sao_Paulo"
    Metadata:
      DockerTag: latest
      Dockerfile: Dockerfile
      DockerContext: .
      SamResourceId: Xpto
    Policies:
      - AWSLambdaBasicExecutionRole

  Dependencies:
    Type: AWS::Serverless::LayerVersion
    Properties:
      ContentUri: .
      RetentionPolicy: Retain
      CompatibleRuntimes:
        - python3.11
    Metadata:
      BuildMethod: python3.11
      SamResourceId: Dependencies
      BuildArchitecture: x86_64

My samconfig.toml:

version = 0.1

[default]
[default.global]
[default.global.parameters]
stack_name = "xpto"

[default.build]
[default.build.parameters]
cached = false
parallel = true
use_container = true
skip_pull_image = true

[default.sync]
[default.sync.parameters]
watch = true

[default.validate]
[default.validate.parameters]
lint = true

[default.local_invoke]
[default.local_invoke.parameters]
event = "event/event.json"
profile = "default"
no_event = false

My data in .aws:

• config file:

[default]
output = json
region = us-east-1

And finally, the command I execute in my makefile:

SAM_BUILD = sam build
SAM_INVOKE = sam local invoke Xpto --debug
LAMBDA_IMAGE = xpto:latest
GENERATE_EVENT = python -m event.create_event

invoke:
	@docker run -it --rm -v /var/run/docker.sock:/var/run/docker.sock -v ${PWD}:/app -w /app --network=host \
        ${LAMBDA_IMAGE} sh -c "${SAM_BUILD} && ${GENERATE_EVENT} && ${SAM_INVOKE}"

[lucashuy]

Hi, I've deleted the credentials portion of your issue, even if one or more keys in that code block were pseudo values.

[hnnasit]

Hi there, sam local invoke runs lambda RIE in the background to emulate lambda invocation. Based on this code, it looks like RIE is expecting a lambda handler to be passed as an arg. Could you try passing the lambda handler for CMD instead of the python command to run the script? Example of image based app can be found here.

[gustavofreze]

Hello @hnnasit, thank you for your time. I changed it and tested it. I had the same error.

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[Laan33]

@gustavofreze Did you manage to fix this ? If so what did you change 🙏 thank you

[gustavofreze]

No, I couldn't fix it.