e12bcd9a4d
Adds instructions for a database backup. Change-Id: I97c4bdb4e5d7d28c06a03ceb1cc290db9b1dccb5 Story: 2004359 Task: 27959
125 lines
3.6 KiB
ReStructuredText
125 lines
3.6 KiB
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===================
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Seed Administration
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===================
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Deprovisioning The Seed VM
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==========================
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.. note::
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This step will destroy the seed VM and its data volumes.
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To deprovision the seed VM::
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(kayobe) $ kayobe seed vm deprovision
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Updating Packages
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=================
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It is possible to update packages on the seed host. To update one or more
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packages::
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(kayobe) $ kayobe seed host package update --packages <package1>,<package2>
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To update all eligible packages, use ``*``, escaping if necessary::
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(kayobe) $ kayobe seed host package update --packages *
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To only install updates that have been marked security related::
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(kayobe) $ kayobe seed host package update --packages <packages> --security
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Note that these commands do not affect packages installed in containers, only
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those installed on the host.
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Examining the Bifrost Container
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===============================
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The seed host runs various services required for a standalone Ironic
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deployment. These all run in a single ``bifrost_deploy`` container.
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It can often be helpful to execute a shell in the bifrost container for
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diagnosing operational issues::
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$ docker exec -it bifrost_deploy bash
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Services are run via Systemd::
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(bifrost_deploy) systemctl
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Logs are stored in ``/var/log/kolla/``, which is mounted to the ``kolla_logs``
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Docker volume.
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Accessing the Seed Services
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===========================
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The Ironic API can be accessed via the ``openstack`` command line interface::
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(bifrost_deploy) $ source env-vars
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(bifrost_deploy) $ openstack baremetal node list
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Ironic inspector API requires some environment variables to be set::
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(bifrost_deploy) $ unset OS_CLOUD
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(bifrost_deploy) $ export OS_URL=http://localhost:5050
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(bifrost_deploy) $ export OS_TOKEN=fake-token
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(bifrost_deploy) $ openstack baremetal introspection list
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Backup & Restore
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================
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There are two main approaches to backing up and restoring data on the seed. A
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backup may be taken of the Ironic databases. Alternatively, a Virtual Machine
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backup may be used if running the seed services in a VM. The former will
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consume less storage. Virtual Machine backups are not yet covered here, neither
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is scheduling of backups. Any backup and restore procedure should be tested in
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advance.
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Database Backup & Restore
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-------------------------
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A backup may be taken of the database, using one of the many tools that exist
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for backing up MariaDB databases.
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A simple approach that should work for the typically modestly sized seed
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database is ``mysqldump``. The following commands should all be executed on
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the seed.
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Backup
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^^^^^^
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It should be safe to keep services running during the backup, but for maximum
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safety they may optionally be stopped::
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docker exec -it bifrost_deploy \
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systemctl stop ironic-api ironic-conductor ironic-inspector
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Then, to perform the backup::
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docker exec -it bifrost_deploy \
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mysqldump --all-databases --single-transaction --routines --triggers > seed-backup.sql
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If the services were stopped prior to the backup, start them again::
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docker exec -it bifrost_deploy \
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systemctl start ironic-api ironic-conductor ironic-inspector
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Restore
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^^^^^^^
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Prior to restoring the database, the Ironic and Ironic Inspector services
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should be stopped::
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docker exec -it bifrost_deploy \
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systemctl stop ironic-api ironic-conductor ironic-inspector
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The database may then safely be restored::
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docker exec -i bifrost_deploy \
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mysql < seed-backup.sql
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Finally, start the Ironic and Ironic Inspector services again::
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docker exec -it bifrost_deploy \
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systemctl start ironic-api ironic-conductor ironic-inspector
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