WARN[0000] The "ajk" variable is not set. Defaulting to a blank string

Hello,

using

sudo docker compose up -d

with the ā€œBase version - apacheā€ composer-file from docs/README.md at master Ā· docker-library/docs Ā· GitHub on a RaspberryPi, I get a warning 3 times:

WARN[0000] The ā€œajkā€ variable is not set. Defaulting to a blank string.
WARN[0000] The ā€œajkā€ variable is not set. Defaulting to a blank string.
WARN[0000] The ā€œajkā€ variable is not set. Defaulting to a blank string.

I couldnā€™t find any help what this might mean. Nextcloud seem to start and work correctly, but I guess the warning has a reason :wink: So any ideas what this could mean?

Found it: I used the string ā€¦$ajkā€¦ in the mysql-password, it seems that nextcloud is using that directly inside php without escaping.