Build 'amazon-ebs.static-web-ami' errored after 861 milliseconds 814 microseconds: unexpected EOF

[shindam]

Hello, i'm using Packer on a docker image for a CI/CD on Gitlab for Amazon AWS.
Here is my packer files : `packer {
required_plugins {
amazon = {
version = "> 1.3"
source = "github.com/hashicorp/amazon"
}
ansible = {
version = "> 1.1"
source = "github.com/hashicorp/ansible"
}
}
}

variable "associate_public_ip_address" {
type = string
default = "true"
}

variable "base_ami" {
type = string
default = "ami-007855ac798b5175e"
}

variable "instance_type" {
type = string
default = "t2.micro"
}

variable "region" {
type = string
default = "us-east-1"
}

variable "app_name" {
type = string
default = "WebApp"
}

variable "server_port" {
type = string
default = "8080"
}

variable "ssh_username" {
type = string
default = "ubuntu"
}

locals {
timestamp = formatdate("YYYY-MM-DD_hh-mm-ss", timestamp())
cleaned_app_name = replace("${var.app_name}", "/[^a-zA-Z0-9()\\[\\] .\\/@_-]/", "_")
ami_name = "${local.cleaned_app_name}-${local.timestamp}"
}

source "amazon-ebs" "static-web-ami" {
ami_name = local.ami_name
associate_public_ip_address = var.associate_public_ip_address
instance_type = var.instance_type
region = var.region
source_ami = var.base_ami
ssh_username = var.ssh_username
iam_instance_profile = "LabInstanceProfile"
tags = {
Name = "Project-${local.ami_name}"
}
}

build {
sources = [
"source.amazon-ebs.static-web-ami"
]

provisioner "ansible" {
playbook_file = "play.yml"
extra_arguments = ["--extra-vars", "server_port=${var.server_port}"]
ansible_env_vars = ["ANSIBLE_HOST_KEY_CHECKING=False"]
use_proxy = false
}
}
`

I got this message when using this code for my CI/CD to create a AMI :

And here is the yml file on gitlab CI/CD : `packer-build:
stage: build
image:
name: hashicorp/packer:latest
entrypoint: ["/bin/sh", "-c"]
variables:
AWS_ACCESS_KEY_ID: $AWS_ACCESS_KEY_ID
AWS_SECRET_ACCESS_KEY: $AWS_SECRET_ACCESS_KEY
AWS_SESSION_TOKEN : $AWS_SESSION_TOKEN
APP_NAME: "patate" # Définir le nom du projet ici
SERVER_PORT: "8081" # Définir le port ici
before_script:
- apk add --update --no-cache openssh-client python3 py3-pip python3-dev gcc musl-dev libffi-dev openssl-dev make
- eval $(ssh-agent -s)
script:
- ls
- python3 -m venv venv
- source venv/bin/activate
- pip install --upgrade pip
- pip install ansible
- packer init buildAMI.pkr.hcl
- packer validate buildAMI.pkr.hcl
- packer build -var "app_name=${APP_NAME}" -var "server_port=${SERVER_PORT}" buildAMI.pkr.hcl

only:
- main

`

Log Fragments and crash.log files

I can't locate the crash.log files

It will be very helpful if you can help me thanks a lot.

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