Answers for "django.db.utils.operationalerror: (2002, "can't connect to local mysql server through socket '/var/run/mysqld/mysqld.sock' (2)")"

django.db.utils.operationalerror: (2002, "can't connect to local mysql server through socket '/var/run/mysqld/mysqld.sock' (2)")

db:
image: mariadb
ports:
  - 3306:3306
environment:
  MYSQL_USER: "****"
  MYSQL_PASSWORD: "****"
  MYSQL_DATABASE: "*****"
  MYSQL_RANDOM_ROOT_PASSWORD: "yes"