I have a postgres server running in a docker container. I added a user there named "myuser". I also have a linux user named "myuser".
Then (as root) I do:
$ su - myser
Password for myuser:
My question is, why does it ask me for a password? When I ran the postgres server installed on the host (not in a docker container) it was enough that the usernames matched and I could log in without a password.
How can I log in to the psql server without supplying a password?