This is a rebuild of the bitnami/mysql container, the only updates they give is LTS. It's based on the Dockerfile and is intended for development or testing purposes. All the environment variables are setup the same way as official Bitnami Container.
Important: These are not sutiable or allowed for production Usage. Bitnami Does have some different tags and versions available, on enterprise support, please use those for regular updates also the official mysql container is also nice, or else kindly
use the Dockerfile and build your own as building is fun also these are community server builds on enterprise platform. MySQL Enterprise is different than this.
This container is built from Scratch it uses same bitnami initialization scripts. The base was chosen as Oracle Linux 9 which is a derivative of RHEL with enterprise support. Rocky Linux and Almalinux is not chosen due to Oracle Linux having enterprise grade stability and support and RHEL base is not used due to
lots of packages are under Subscription Repos which are needed to build and run MySQL server, Even if we built it with RHEL we would not be able to redistribute the containers and Build it yourself container is much complicated in non RHEL Hosts. So Oracle Linux stayed a strong Contender for Database Systems and Other Applications which need enterprise grade stability and larger non subscription package repositories and also redistributable when RHEL/RPM ABI/Binary Compatiblity is needed.
The Dockerfiles are build from base files. So you can modify the software version numbers as you want, They are used as Version Macros in Dockerfile, then maybe some minor changes needed in Dockerfile to build most versions of the software with ease and peace.