MySQL connection on locahost with mariadb container fails - docker

Question

Issue
I cannot connect with MySQL from the host the MariaDB Container is running from. Here are some infos concerning the environment:
docker compose-file
version: '3.1'
services:
db:
image: mariadb
restart: always
environment:
BIND-ADDRESS: 0.0.0.0
MYSQL_ROOT_PASSWORD: example
ports:
- 3306:3006
adminer:
image: adminer
restart: always
ports:
- 8080:8080
Connecting with the container via docker exec -it rancherclientplatform_db_1 /bin/bash and the connecting with mysql -uroot -p unsurprisingly works.
GRANTS
Grants are as follows:
MariaDB [(none)]> SHOW GRANTS;
+----------------------------------------------------------------------------------------------------------------------------------------+
| Grants for root#localhost
|
+----------------------------------------------------------------------------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'root'#'localhost' IDENTIFIED BY PASSWORD '*57237BB49761F29AB9724BA084E811D70C12393D' WITH GRANT OPTION |
| GRANT PROXY ON ''#'%' TO 'root'#'localhost' WITH GRANT OPTION
|
+----------------------------------------------------------------------------------------------------------------------------------------+
On the host
No when I try to connect on the host, neither
mysql -uroot -p nor
mysql -hlocalhost -uroot -p nor
mysql -h127.0.0.1 -uroot -p
work. The first 2 fail with a socket error, -h127.0.0.1 fails with
ERROR 2013 (HY000): Lost connection to MySQL server at 'reading initial communication packet', system error: 0 "Internal error/check (Not system error)"
The port 3306 itself seems to be published to the host properly, as
nmap -p3306 localhost delivers
PORT STATE SERVICE
3306/tcp open mysql
Any ideas on what to do here?

Answer 1

MariaDB default port is 3306.
so :
ports:
- 3306:3006
you probably want to map port using 3306:3306 if you want to access mariadb on localhost using port 3306