Run Ansible Restore Playbook Remotely

In this method you can run Ansible Restore playbook and point to controller-0.

Prerequisites

• It is recommended that you have Ansible version 2.7.5 or higher installed on your remote workstation. Copy the Ansible Backup/Restore playbooks from directory /usr/share/ansible/stx-ansible/playbooks/.

• Your network has IPv6 connectivity before running Ansible Playbook, if the system configuration is IPv6.

Procedure

1. Log in to the remote workstation.

   You can log in directly on the console or remotely using ssh.

2. Provide an inventory file, either a customized one that is specified using the -i option, or the default one that is in the Ansible configuration directory (that is, /etc/ansible/hosts). You must specify the floating OAM IP of the controller host. For example, if the host name is stx_Cluster, the inventory file should have an entry called stx_Cluster.

   ---
   all:
     hosts:
       wc68:
         ansible_host: 128.222.100.02
       stx_Cluster:
         ansible_host: 128.224.141.74

3. Run the Ansible Restore playbook:

   ~(keystone_admin)]$ ansible-playbook path-to-restore-platform-playbook-entry-file --limit host-name -i inventory-file -e optional-extra-vars
   

   where optional-extra-vars can be:

   • Optional: You can select one of the following restore modes:

     • To keep Ceph data intact (false - default option), use the following parameter:

       wipe_ceph_osds=false

     • To start with an empty Ceph cluster (true), where the Ceph cluster will need to be recreated, use the following parameter:

       wipe_ceph_osds=true

     • To indicate that the backup data file is under /opt/platform-backup directory on the local machine, use the following parameter:

       on_box_data=true

       If this parameter is set to false, the Ansible Restore playbook expects both the initial_backup_dir and backup_filename to be specified.

   • The backup_filename is the platform backup tar file. It must be provided using the -e option on the command line, for example:

     -e backup_filename= localhost_platform_backup_2019_07_15_14_46_37.tgz
     

   • The initial_backup_dir is the location on the Ansible control machine where the platform backup tar file is placed to restore the platform. It must be provided using -e option on the command line.

   • The admin_password, ansible_become_pass, and ansible_ssh_pass need to be set correctly using the -e option on the command line or in the Ansible secret file. ansible_ssh_pass is the password to the sysadmin user on controller-0.

   • The ansible_remote_tmp should be set to a new directory (not required to create it ahead of time) under /home/sysadmin on controller-0 using the -e option on the command line.

   For example:

   ~(keystone_admin)]$ ansible-playbook /localdisk/designer/jenkins/tis-stx-dev/cgcs-root/stx/ansible-playbooks/playbookconfig/src/playbooks/restore_platform.yml --limit stx_Cluster -i $HOME/br_test/hosts -e "ansible_become_pass=St0rlingX* admin_password=St0rlingX* ansible_ssh_pass=St0rlingX* initial_backup_dir=$HOME/br_test backup_filename= stx_Cluster_system_backup_2019_08_08_15_25_36.tgz ansible_remote_tmp=/home/sysadmin/ansible-restore"

   Warning

   If ansible_remote_tmp is not set, /tmp will be used. /tmp can only hold 1GB.

   An example of what happens when ansible_remote_tmp is not used:

   TASK [backup-restore/transfer-file : Transfer backup tarball to /scratch on controller-0] ***
   Wednesday 21 June 2023  13:59:28 +0000 (0:00:00.230)       0:00:51.283 ********
   fatal: [subcloud1]: FAILED! =>
    msg: |-
     failed to transfer file to /opt/platform-backup/subcloud1_platform_backup_2023_06_09_23_14_14.tgz /tmp/.ansible-sysadmin/tmp/ansible-tmp-1687355968.13-696694507261/source:
   
     scp: /tmp/.ansible-sysadmin/tmp/ansible-tmp-1687355968.13-696694507261/source: No space left on device
   

   Note

   If the backup contains patches, Ansible Restore playbook will apply the patches and prompt you to reboot the system. Then you will need to re-run Ansible Restore playbook.

4. After running the restore_platform.yml playbook, you can restore the local registry images.

   Note

   The backup file of the local registry may be large. Restore the backed up file on the controller, where there is sufficient space.

   ~(keystone_admin)]$ ansible-playbook path-to-restore-user-images-playbook-entry-file --limit host-name -i inventory-file -e optional-extra-vars
   

   where optional-extra-vars can be:

   • The backup_filename is the local registry backup tar file. It must be provided using the -e option on the command line, for example:

     -e backup_filename= localhost_docker_local_registry_backup_2020_07_15_21_24_22.tgz
     

   • The initial_backup_dir is the location on the Ansible control machine where the platform backup tar file is located. It must be provided using -e option on the command line.

   • The ansible_become_pass, and ansible_ssh_pass need to be set correctly using the -e option on the command line or in the Ansible secret file. ansible_ssh_pass is the password to the sysadmin user on controller-0.

   • The backup_dir should be set to a directory on controller-0. The directory must have sufficient space for local registry backup to be copied. The backup_dir is set using the -e option on the command line.

   • The ansible_remote_tmp should be set to a new directory on controller-0. Ansible will use this directory to copy files, and the directory must have sufficient space for local registry backup to be copied. The ansible_remote_tmp is set using the -e option on the command line.

   For example, run the local registry restore playbook, where /sufficient/space directory on the controller has sufficient space left for the archived file to be copied.

   ~(keystone_admin)]$ ansible-playbook /localdisk/designer/jenkins/tis-stx-dev/cgcs-root/stx/ansible-playbooks/playbookconfig/src/playbooks/restore_user_images.ym --limit stx_Cluster -i $HOME/br_test/hosts -e "ansible_become_pass=St0rlingX* ansible_ssh_pass=St0rlingX* initial_backup_dir=$HOME/br_test backup_filename= stx_Cluster_docker_local_registry_backup_2020_07_15_21_24_22.tgz ansible_remote_tmp=/sufficient/space backup_dir=/sufficient/space"