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