$ docker-compose up -d
$ docker exec -it radius bash
$ echo "testUser Cleartext-Password := \"testPassword\"" >> /etc/raddb/users
$ echo -e "client any {\n\tipaddr\t= 0.0.0.0/0\n\tsecret\t= testing123\n}" >> /etc/raddb/clients.conf
$ exit
$ docker restart radius
$ yum install -y freeradius-utils
$ radtest testUser testPassword *<docker radius ip>* 0 testing123
$ docker exec -it radius tail -f /tmp/radius.log