82e4b0e335
Minor style updates done. Removed the footnote and added the document reference :ref: Updated the Footnote [#]. Signed-off-by: Elaine Fonaro <elaine.fonaro@windriver.com> Change-Id: Icafcab66634237bef72d253cec3f6240f1c67d45
148 lines
4.6 KiB
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148 lines
4.6 KiB
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.. gmx1612810318507
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.. _restore-openstack-from-a-backup:
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===============================
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Restore OpenStack from a Backup
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===============================
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You can restore |prod-os| from a backup with or without Ceph.
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.. rubric:: |prereq|
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.. _restore-openstack-from-a-backup-ul-ylc-brc-s4b:
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- You must have a backup of your |prod-os| installation as described in
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:ref:`Back up OpenStack <back-up-openstack>`.
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- You must have an operational |prod-long| deployment.
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.. rubric:: |proc|
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#. Delete the old OpenStack application and upload it again.
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.. note::
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Images and volumes will remain in Ceph.
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.. parsed-literal::
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~(keystone_admin)$ system application-remove |prefix|-openstack
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~(keystone_admin)$ system application-delete |prefix|-openstack
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~(keystone_admin)$ system application-upload |prefix|-openstack.tgz
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#. Restore |prod-os|.
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You can choose either of the following options:
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- Restore only |prod-os| system data. This option will not restore the
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Ceph data \(that is, it will not run commands like :command:`rbd
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import`\). This procedure will preserve any existing Ceph data at
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restore-time.
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- Restore |prod-os| system data, Cinder volumes and Glance images. You'll
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want to run this step if your Ceph data will be wiped after the backup.
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------------------------------------
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Restore only application system data
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------------------------------------
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Run the following command:
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.. code-block:: none
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~(keystone_admin)$ ansible-playbook /usr/share/ansible/stx-ansible/playbooks/ restore_openstack.yml -e "@localhost-restore.yaml"
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.. code-block:: none
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cat << EOF > localhost-restore.yaml
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---
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ansible_become_pass: "<admin_password>"
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admin_password: "<admin_password>"
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initial_backup_dir: "<location_of_backup_filename>"
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backup_filename: "<openstack_tgz_backup_filename>"
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...
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EOF
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-----------------------------------------------------------------
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Restore application system data, cinder volumes and glance images
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-----------------------------------------------------------------
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#. Run the following command:
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.. code-block:: none
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~(keystone_admin)$ ansible-playbook /usr/share/ansible/stx-ansible/playbooks/ restore_openstack.yml -e "@localhost-restore.yaml"
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.. code-block:: none
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cat << EOF > localhost-restore.yaml
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---
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ansible_become_pass: "<admin_password>"
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admin_password: "<admin_password>"
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initial_backup_dir: "<location_of_backup_filename>"
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backup_filename: "<openstack_tgz_backup_filename>"
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restore_cinder_glance_data="true"
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...
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EOF
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When this step has completed, the Cinder, Glance and MariaDB services will
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be up, and Mariadb data restored.
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#. Restore Ceph data.
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#. Restore Cinder volumes using the :command:`rbd import` command.
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For example:
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.. code-block:: none
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~(keystone_admin)$ rbd import -p cinder-volumes /tmp/611157b9-78a4-4a26-af16-f9ff75a85e1b
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Where ``tmp/611157b9-78a4-4a26-af16-f9ff75a85e1b`` is a file saved
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earlier at the backup procedure as described in :ref:`Back up OpenStack<back-up-openstack>`.
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#. Restore Glance images using the :command:`image-backup` script.
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For example, if we have an archive named
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``image_3f30adc2-3e7c-45bf-9d4b-a4c1e191d879.tgz`` in the ``/opt/backups``
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directory, we can use restore it using the following command:
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.. code-block:: none
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~(keystone_admin)$ sudo image-backup.sh import image_3f30adc2-3e7c-45bf-9d4b-a4c1e191d879.tgz
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#. Use the :command:`tidy_storage_post_restore` utility to detect any
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discrepancy between Cinder/Glance DB and rbd pools:
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.. code-block:: none
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~(keystone_admin)$ tidy_storage_post_restore <log_file>
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After the script finishes, some command output will be written to the
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log file. They will help reconcile discrepancies between the |prod-os|
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database and CEPH data.
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#. Run the playbook again with the ``restore_openstack_continue`` flag set to
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``true`` to bring up the remaining OpenStack services.
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.. code-block:: none
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~(keystone_admin)$ ansible-playbook /usr/share/ansible/stx-ansible/playbooks/ restore_openstack.yml -e "@localhost-restore.yaml"
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.. code-block:: none
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cat << EOF > localhost-restore.yaml
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---
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ansible_become_pass: "<admin_password>"
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admin_password: "<admin_password>"
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initial_backup_dir: "<location_of_backup_filename>"
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backup_filename: "<openstack_tgz_backup_filename>"
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restore_openstack_continue="true"
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...
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EOF
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