* [Mariadb galera swarm image](https://hub.docker.com/r/colinmollenhour/mariadb-galera-swarm/) for MariaDB automatic clustering with healthchecks and other features, which is already available & build as a [Dockerfile](https://hub.docker.com/r/colinmollenhour/mariadb-galera-swarm/dockerfile).
As an operating system we used the same for all docker (manager & worker) nodes (Host machine & LXC containers):
* Debian 9.3 (Stretch) with Linux Kernel 4.9.0-5-amd64
* Debian 9 (Stretch) with Linux Kernel 4.9.0-5-amd64 (9.3 for host machine, 9.12 for LXC).
In more detail, the manager node is running on the host machine itself, while the provisioning of LXC containers permits the creation of multiple worker nodes on which the galera cluster runs as a service, which are running on the same host and are sharing the same Linux Kernel without the need for other separate or dedicated worker machines/VMs.
