"no such file or directory" when executing Go function in AWS Lambda

[Napas]

When running my Lambda function I get this error:

START RequestId: 3df5e64a-0863-11e8-903f-919b29535603 Version: $LATEST fork/exec /var/task/bin/ping: no such file or directory: PathError null END RequestId: 3df5e64a-0863-11e8-903f-919b29535603 REPORT RequestId: 3df5e64a-0863-11e8-903f-919b29535603 Duration: 0.21 ms Billed Duration: 100 ms Memory Size: 128 MB Max Memory Used: 12 MB

I did check zip file in S3 - it has an executable in it ./bin/ping

Any ideas how to solve that?

My serverless.yml

service: ping
provider:
  name: aws
  runtime: go1.x
  stage: staging
  region: us-east-1
  memorySize: 128
  timeout: 1

package:
 exclude:
   - ./**
 include:
   - ./bin/**

functions:
  ping:
    handler: bin/ping
    events:
      - http:
          path: ping
          method: get
          private: false

my ping/main.go file:

package main

import (
	"github.com/aws/aws-lambda-go/lambda"
	"time"
	"github.com/aws/aws-lambda-go/events"
	"encoding/json"
)

// Response object
type Response struct {
	Payload string            `json:"Payload"`
	Meta    map[string]string `json:"Meta"`
}

// Ping handles ping response
func Ping(request events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
	meta := make(map[string]string)
	meta["CreatedAt"] = time.Now().Format(time.RFC3339);
	resp := Response{
		Payload: "Pong",
		Meta: meta,
	}

	body, _ := json.Marshal(resp)

	return events.APIGatewayProxyResponse{
		StatusCode: 200,
		Body: string(body),
	}, nil
}

func main() {
	lambda.Start(Ping)
}

[Napas]

Ok, found a solution. If someone else will have this issue: somehow Golang Alpine images doesn't build statically linked binary:
ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-musl-x86_64.so.1, stripped

The interpreter doesn't exist in Lambda environment so that's why it throws "no such file or directory error".

To solve that modify your Makefile to use
env GOOS=linux go build -v -ldflags '-d -s -w' -a -tags netgo -installsuffix netgo -o bin/service service/main.go as a build command.

[jdchmiel]

It also does not like C header includes, where the non alpine image works just fine.

[gadelkareem]

this worked for me

GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -ldflags '-s -w' -a -installsuffix cgo -o -o bin/service service/main.go

[rajendragosavi]

@gadelkareem , where did you add this ? I am using helloworld example of AWS SAM.

[gadelkareem]

@rajendragosavi it for the Alpine image that is building the go binary in your pipeline

[rajendragosavi]

@gadelkareem , I am just following AWS SAM hello-world example. and I am getting some error .
I am invoking - sam local invoke HelloWorldFunction --no-event
"errorType":"exitError","errorMessage":"RequestId: 1bd9d3cd-442a-1519-3878-8ebe490a5e95 Error: fork/exec /var/task/hello-world: permission denied"

[rajendragosavi]

@Napas - How did you resolve this issue? I am following AWS SAM hello-world example and I getting error- "errorType":"exitError","errorMessage":"RequestId: 1bd9d3cd-442a-1519-3878-8ebe490a5e95 Error: fork/exec /var/task/hello-world: permission denied"

[dheerajappin]

i am using lambda promtail function with go latest version but getting the following error:
fork/exec /var/task/handler: no such file or directory: PathError null

[amadejkastelic]

i am using lambda promtail function with go latest version but getting the following error: fork/exec /var/task/handler: no such file or directory: PathError null

Same issue, did you manage to fix it?

[dheerajappin]

no, thanks dheeraj

…

On Tue, Jan 4, 2022 at 9:02 PM Amadej Kastelic ***@***.***> wrote: i am using lambda promtail function with go latest version but getting the following error: fork/exec /var/task/handler: no such file or directory: PathError null Same issue, did you manage to fix it? — Reply to this email directly, view it on GitHub <#4710 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ARPCIOIVY2P7V357YEDRV53UUMHJNANCNFSM4EO7K5RQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you commented.Message ID: ***@***.***>

[vikhyat187]

is this fixed? Even I'm facing the same error.

[bernardgardner]

So another cause of this is failing to build the go binaries before using serverless to deploy the lambdas - at least in our case, sls would happily deploy lambdas with the supporting files in the zip, but not including the executable, so the "no such file or directory" error was quite literal - the file wasn't there...