The person who opened the issue said that they were able to fix it by commenting out one line from the docker entry point (https://github.com/ambrt/supertokens-docker-mysql/blob/daf676974adcc14f95ff008efcb25b002374a349/docker-entrypoint.sh#L33-L40). When we made the original image, we followed what other images like mysql / postgres etc did.. and they too create their own user in the file system, just like how we have. So commenting that out may not be the right thing to do.. not sure.