docs/doc/source/backup/kubernetes/running-ansible-backup-playbook-locally-on-the-controller.rst

Run Ansible Backup Playbook Locally on the Controller

In this method the Ansible Backup playbook is run on the active controller.

Use the following command to run the Ansible Backup playbook and back up the configuration, data, and user container images in registry.local:

~(keystone_admin)]$ ansible-playbook /usr/share/ansible/stx-ansible/playbooks/backup.yml -e "ansible_become_pass=<sysadmin password> admin_password=<sysadmin password>" -e "backup_registry_filesystem=true"
~(keystone_admin)]$ ansible-playbook /usr/share/ansible/stx-ansible/playbooks/backup.yml --ask-vault-pass -e "override_files_dir=$HOME/override_dir"

To exclude a directory and all the files in it like /var/home* you can use the optional parameter:

-e "exclude_dirs=/var/home/**,/var/home"

Note

A 'glob' pattern is required to use -e "exclude_dirs=/var/home/**,/var/home", in order to ensure there is sufficient free space in the required directories in any event.

The <admin_password> and <ansible_become_pass> need to be set correctly using the -e option on the command line, with an override file secured with ansible-vault (recommended).

For example, create your override file with the ansible-vault create $HOME/override_dir/localhost-backup.yaml command and copy the following lines into the file. You will be prompted for a password to protect/encrypt the file. Use the ansible-vault edit $HOME/override_dir/localhost-backup.yaml command if the file needs to be edited after it is created.

ansible_become_pass: "<admin_password>"
admin_password: "<admin_password>"
backup_registry_filesystem: "true"
exclude_dirs: /var/home/**,/var/home"
...
EOF

The extra var backup_registry_filesystem is an optional parameter and it is used to backup all images on the registry backup, generating a file named {inventory_hostname}_image_registry_backup_YYYY_MM_DD_HH_mm_ss.tgz. When not specified, the restore will download images from the upstream docker registry.

For example:

~(keystone_admin)]$ ansible-playbook /usr/share/ansible/stx-ansible/playbooks/backup.yml -e "backup_registry_filesystem=true"

A list of possible output files, files created depend on backup options and system configuration.

• inventory_hostname_platform_backup_timestamp.tgz
• inventory_hostname_wr-openstack_backup_timestamp.tgz
• inventory_hostname_user_images_backup_timestamp.tgz
• inventory_hostname_dc_vault_backup_timestamp.tgz
• inventory_hostname_image_registry_backup_timestamp.tgz

The output files' prefixes can be overridden with the following variables using the -e option on the command line or by using an override file.

• platform_backup_filename_prefix
• openstack_backup_filename_prefix
• docker_local_registry_backup_filename_prefix
• dc_vault_backup_filename_prefix
• openstack_app_name: "" (optional for application backup)

The generated backup tar files will be displayed in the following format, for example:

• localhost_docker_local_registry_backup_2020_07_15_21_24_22.tgz
• localhost_platform_backup_2020_07_15_21_24_22.tgz
• localhost_openstack_backup_2020_07_15_21_24_22.tgz
• localhost_dc_vault_backup_2020_07_15_21_24_22.tgz

These files are located by default in the /opt/backups directory on controller-0, and contains the complete system backup.

If the default location needs to be modified, the variable backup_dir can be overridden using the -e option on the command line or by using an override file.