`MariaDB <https://mariadb.org/>_ is the default persistant storage option for `a Kolla-Kubernetes cluster.
MariaDB is self-sufficent, thus it’s one of the first things you want to start while installing.
MariaDB must be boostrapped to set up the on-disk data structure before the process can start. To bootstrap MariaDB:
kolla-kubernetes bootstrap mariadb
To create the Replication Controller that will keep MariaDB running after boostrap has completed:
kolla-kubernetes run mariadb
To find the database password:
grep ^database_password /etc/kolla/passwords.yml
To find the IP address of the kubernetes service so you can test for functionality on a machine inside of the Kubernetes cluster (e.g. running Kube-proxy) but not running as a container:
kubectl get svc mariadb
Once you know the IP address and password, you can check to see if a mysql client running on a machine by appending the IP address to this command (e.g. -h 192.0.2.0):
mysql -p -u root -h <ip_address>
MariaDB is configured to store it’s database on the host at /var/lib/mysql. If there’s contents from previous runs located there, the bootstrap will fail.