Local-exec script is not shutdown gracefully

Terraform
1

Assume the following terraform_data resource running a shell script.
The shell script “test.sh” has some time-consuming cleanup code which is expected to run when Terraform execution is interrupted with “Ctrl+C” key.

resource "terraform_data" "main" {
  triggers_replace = timestamp()
  provisioner "local-exec" {
    command = "./test.sh"
  }
}

test.sh

#!/usr/bin/env bash
set -euo pipefail
set -x

cleanup() {
  set -x
  echo "cleanup start"
  # Some cleanup code here
  sleep 3
  echo "cleanup finish"
}

trap "cleanup" INT
# Some commands here
sleep 100
echo "script succeeded."

When I run “terraform apply” and press Ctrl+C once (for graceful shutdown), I see the following message.

╷
│ Error: execution halted
│ 
│ 
╵
╷
│ Error: execution halted
│ 
│ 
╵
╷
│ Error: local-exec provisioner error
│ 
│   with terraform_data.deploy,
│   on test.tf line 3, in resource "terraform_data" "deploy":
│    3:   provisioner "local-exec" {
│ 
│ Error running command './test.sh': signal: killed. Output: + trap cleanup INT
│ + sleep 100
│ ++ cleanup
│ ++ set -x
│ ++ echo 'cleanup start'
│ cleanup start
│ ++ sleep 3
│ 
╵

The script is killed while it is running cleanup process. It seems there is some timeout for graceful shutdown. Can we change this behavior?

2

No direct knowledge of this, but one thing you could consider trying is trapping SIGTERM as well as / in addition to SIGINT?