Mysql: database not initialized when run via docker-compose

[cjrollo]

MySQL version: 5.7.12

I send this via command line and the "demo" database is created, as is the "demouser" user:

docker run -e MYSQL_ROOT_PASSWORD=secret -e MYSQL_DATABASE=demo -e MYSQL_USER=demouser -e MYSQL_PASSWORD=demopassword -d mysql:5.7.12

When I run via docker-compose, the "demo" database is _not_ created. Here is the relevant info from docker-compose.yml:

db:
  image: mysql:5.7.12
  environment:
    - MYSQL_ROOT_PASSWORD=secret
    - MYSQL_DATABASE=demo
    - MYSQL_USER=demouser
    - MYSQL_PASSWORD=demopassword
  ports:
    - 3306:3306

I noticed that the shell process for docker run is "/entrypoint.sh mysql" but docker-composer runs "docker-entrypoint.sh". Why does docker-entrypoint.sh differ in behaviour?

[yosifkit]

Those two enrypoints are the same file: see dockerfile line 60. I am unable to reproduce using your docker-compose file:

$ docker-compose up -d
$ docker run -it --link tmp_db_1:mysql --rm mysql sh -c 'exec mysql -hmysql -uroot -psecret'mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.12 MySQL Community Server (GPL)

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| demo               |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
5 rows in set (0.00 sec)

mysql> 

Did you start your database before you added the MYSQL_DATABASE env? docker-compose tries hard to keep volumes around and those environment variables are only used on the first startup of the container. Try using docker-compose stop db and docker-compose rm -fv db to get rid of the container and any volumes associated with it; then docker-compose up -d should work fine.

[cjrollo]

That seems to be it. Now getting some _better_ errors (which I'll fix):
ERROR 1130 (HY000): Host '172.17.0.3' is not allowed to connect to this MySQL server
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

Will be adding some "cleanup" routines! Thanks.