Typo in entrypoint.sh

[Ronnnn]

There seems to be a typo in the setup/entrypoint.sh:

[beats_system]="${BEATS_SYSTEM_PASSWORD=:-}"

Should be:

[beats_system]="${BEATS_SYSTEM_PASSWORD:-}"

The docker compose up setup works well because the .env contains the BEATS_SYSTEM_PASSWORD with an empty value. But when you remove the BEATS_SYSTEM_PASSWORD from the .env file then the setup will fail because the BEATS_SYSTEM_PASSWORD will be set to :- which is not allowed by elasticsearch because the password must be at least 6 characters ;-)

[Kangarstar]

I have detected this issue as well