1. get the hash key with following command
krit@mini ~$ docker run -it docker-mosquitto-master_mosquitto np -p mypassword 
PBKDF2$sha256$901$9QuSsTtUWxCQZYN1$AqEXxC19zJcjcsaHUvSPzAIZA+zq0ccT

2. add user to redis-mosq with command "set user password" as follow
krit@mini ~$ docker exec -it redis-mosq  sh -c 'exec redis-cli -h "192.168.176.2" -p "6379"'
192.168.176.2:6379>  set krit PBKDF2$sha256$901$9QuSsTtUWxCQZYN1$AqEXxC19zJcjcsaHUvSPzAIZA+zq0ccT
192.168.176.2:6379>  quit

