DataBackend has an undocumented dependency on the script binary in util-linux

[laveolus]

I've configured my execute command logging to cloudwatch only:

    execute_command_configuration = {
      logging = "OVERRIDE"
      log_configuration = {
        cloud_watch_log_group_name     = "/aws/ecs/something"
        cloud_watch_encryption_enabled = false
      }
    }

However, when my ubi8 container did not have the script binary installed (in package util-linux), I received this error:

2026-01-14 10:51:41 ERROR [ssm-session-worker] [ecs-execute-command-egv8enfq3l9zptzgnrlq6szeji] [DataBackend] [pluginName=InteractiveCommands] unable to generate log data: Failed to generate transcript with the following errors:
exec: "script": executable file not found in $PATH: 

As a result the ssm agent tried to log to s3 instead in a fallback mechanism, but s3 was not configured.

Certain containers running in ECS it might not install util-linux by default, so maybe this dependency should be documented.

[Aperocky]

I can confirm this, will be updating our documentation.