Answer by mikyll98 for Docker compose for apisix, etcd, apisix-dashbaord

The error is in the file dashboard_conf/conf.yaml, specifically in this snippet:

  users:    - username: admin    - password: admin

Appearently, this results in an empty list of users (see the configuration parser apache/apisix-dashboard/api/internal/conf/conf.go, specifically lines L129-L132 and L300-L311).

That's why you are not be able to log in.

It should instead be:

  users:    - username: admin      password: admin