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Docker Library Bot 2025-06-27 10:10:02 -07:00
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mysql/README.md
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@ -124,7 +124,13 @@ $ docker logs some-mysql
## Using a custom MySQL configuration file
The default configuration for MySQL can be found in `/etc/mysql/my.cnf`, which may `!includedir` additional directories such as `/etc/mysql/conf.d` or `/etc/mysql/mysql.conf.d`. Please inspect the relevant files and directories within the `mysql` image itself for more details.
The default configuration for MySQL varies depending on the base image:
**Oracle-based images (default):** The default configuration is located at `/etc/my.cnf`, which may `!includedir` additional directories such as `/etc/mysql/conf.d`.
**Debian-based MySQL 8 images:** The default configuration can be found in `/etc/mysql/my.cnf`, which may `!includedir` additional directories such as `/etc/mysql/conf.d`.
Please inspect the relevant files and directories within the `mysql` image itself for more details.
If `/my/custom/config-file.cnf` is the path and name of your custom configuration file, you can start your `mysql` container like this (note that only the directory path of the custom config file is used in this command):
@ -132,7 +138,7 @@ If `/my/custom/config-file.cnf` is the path and name of your custom configuratio
$ docker run --name some-mysql -v /my/custom:/etc/mysql/conf.d -e MYSQL_ROOT_PASSWORD=my-secret-pw -d mysql:tag
```
This will start a new container `some-mysql` where the MySQL instance uses the combined startup settings from `/etc/mysql/my.cnf` and `/etc/mysql/conf.d/config-file.cnf`, with settings from the latter taking precedence.
This will start a new container `some-mysql` where the MySQL instance uses the combined startup settings from the default configuration file and `/etc/mysql/conf.d/config-file.cnf`, with settings from the latter taking precedence.
### Configuration without a `cnf` file