<pre class="language-auto" tabindex="0"><code class="language-auto">flowchart TD hook_fired([s3-credentials-changed Hook]) --&gt; has_cluster_initialised{Has cluster\n initialised?} has_cluster_initialised -- no --&gt; defer&gt;defer] defer --&gt; rtn([return]) has_cluster_initialised -- yes --&gt; are_all_required_settings_provided{Are all required\nS3 settings provided?} are_all_required_settings_provided -- no --&gt; rtn are_all_required_settings_provided -- yes --&gt; render_pgbackrest_config[Update backup settings] render_pgbackrest_config --&gt; is_leader{Is current\nunit leader?} is_leader -- no --&gt; rtn is_leader -- yes --&gt; is_blocked{Is unit in\nblocked state?} is_blocked -- yes --&gt; rtn is_blocked -- no --&gt; could_initialise_stanza{Could initialise\npgBackRest Stanza?} could_initialise_stanza -- no --&gt; set_blocked[Set Blocked\nstatus] set_blocked --&gt; rtn could_initialise_stanza -- yes --&gt; is_wal_archiving_to_s3_working{Is WAL archiving\nto S3 working?} is_wal_archiving_to_s3_working -- no --&gt; set_blocked is_wal_archiving_to_s3_working -- yes --&gt; is_tls_disabled_or_single_unit_cluster{Is TLS disabled or\nsingle unit cluster} is_tls_disabled_or_single_unit_cluster -- yes --&gt; stop_pgbackrest_tls_server[Stop pgBackRest\nTLS server] is_tls_disabled_or_single_unit_cluster -- no --&gt; is_replica_and_tls_server_not_running_on_primary{Is current\nunit a replica\nand TLS server isn't\nrunning on primary?} is_replica_and_tls_server_not_running_on_primary -- yes --&gt; rtn stop_pgbackrest_tls_server --&gt; rtn is_replica_and_tls_server_not_running_on_primary -- no --&gt; start_pgbackrest_tls_server[Start pgBackRest\nTLS server] start_pgbackrest_tls_server --&gt; rtn </code></pre>

<pre class="language-auto" tabindex="0"><code class="language-auto">flowchart TD hook_fired([create-backup Hook]) --&gt; is_blocked{Is unit in\nblocked state?} is_blocked -- yes --&gt; fail_action([fail action]) is_blocked -- no --&gt; is_primary_tls_enabled_multiple_unit_cluster{Is primary in\na TLS enabled\nmultiple units cluster?} is_primary_tls_enabled_multiple_unit_cluster -- yes --&gt; fail_action is_primary_tls_enabled_multiple_unit_cluster -- no --&gt; is_replica_tls_disabled{Is replica and\nwith TLS disabled?} is_replica_tls_disabled -- yes --&gt; fail_action is_replica_tls_disabled -- no --&gt; has_stanza_been_initialises{Has stanza been initialised?} has_stanza_been_initialises -- no --&gt; fail_action has_stanza_been_initialises -- yes --&gt; is_s3_relation_established{Is S3 relation\nestablished?} is_s3_relation_established -- no --&gt; fail_action is_s3_relation_established -- yes --&gt; has_missing_s3_parameters{Has missing S3 parameters?} has_missing_s3_parameters -- yes --&gt; fail_action has_missing_s3_parameters -- no --&gt; was_possible_upload_metadata_file_test_connectivity_s3{Was it possible\nto upload metadata file\nto test connectivity to S3?} was_possible_upload_metadata_file_test_connectivity_s3 -- no --&gt; fail_action was_possible_upload_metadata_file_test_connectivity_s3 -- yes --&gt; is_replica{Is current\nunit a replica?} is_replica -- no --&gt; set_maintenance[Set Maintenance Status] is_replica -- yes --&gt; block_new_connections[Block new\nconnections to this\nunit's database] block_new_connections --&gt; set_maintenance set_maintenance --&gt; has_backup_creation_succeeded{Has backup creation succeeded?} has_backup_creation_succeeded -- no --&gt; upload_error_logs_s3[Upload error\nlogs to S3] upload_error_logs_s3 --&gt; fail_action2([fail action]) fail_action2 --&gt; is_replica2{Is current\nunit a replica?} is_replica2 -- no --&gt; set_active[Set Active Status] is_replica2 -- yes --&gt; allow_new_connections[Allow new\nconnections to this\nunit's database] has_backup_creation_succeeded -- yes --&gt; were_backup_logs_uploaded_s3{Were backup logs\nuploaded to S3?} were_backup_logs_uploaded_s3 -- no --&gt; fail_action2 were_backup_logs_uploaded_s3 -- yes --&gt; finish_action[backup created] finish_action --&gt; is_replica2 </code></pre>

<pre class="language-auto" tabindex="0"><code class="language-auto">flowchart TD hook_fired([list-backups Hook]) --&gt; is_s3_relation_established{Is S3 relation\nestablished?} is_s3_relation_established -- no --&gt; fail_action([fail action]) is_s3_relation_established -- yes --&gt; has_missing_s3_parameters{Has missing S3 parameters?} has_missing_s3_parameters -- yes --&gt; fail_action has_missing_s3_parameters -- no --&gt; does_pgbackrest_returned_backups_list{Does pgBackRest\nreturned the\nbackups list?} does_pgbackrest_returned_backups_list -- no --&gt; fail_action does_pgbackrest_returned_backups_list -- yes --&gt; return_formatted_backup_list[Return formatted\nbackup list] </code></pre>

<pre class="language-auto" tabindex="0"><code class="language-auto">flowchart TD hook_fired([restore Hook]) --&gt; has_user_provided_backup_id{Has user provided\na backup id?} has_user_provided_backup_id -- no --&gt; fail_action([fail action]) has_user_provided_backup_id -- yes --&gt; is_workload_container_accessible{Is workload\ncontainer accessible?} is_workload_container_accessible -- no --&gt; fail_action is_workload_container_accessible -- yes --&gt; is_blocked{Is unit in\nblocked state?} is_blocked -- yes --&gt; fail_action is_blocked -- no --&gt; is_single_unit_cluster{Is single\nunit cluster?} is_single_unit_cluster -- no --&gt; fail_action is_single_unit_cluster -- yes --&gt; is_leader{Is current\nunit leader?} is_leader -- no --&gt; fail_action is_leader -- yes --&gt; is_backup_id_valid{Is backup id\nvalid?} is_backup_id_valid -- no --&gt; fail_action is_backup_id_valid -- yes --&gt; set_maintenance[Set Maintenance Status] set_maintenance --&gt; has_database_stopped{Has database\nstopped?} has_database_stopped -- no --&gt; fail_action has_database_stopped -- yes --&gt; was_previous_cluster_info_removed{Was previous cluster\ninfo removed?} was_previous_cluster_info_removed -- no --&gt; start_database_again[Start database again] start_database_again --&gt; fail_action was_previous_cluster_info_removed -- yes --&gt; was_data_directory_emptied{Was the data\ndirectory emptied?} was_data_directory_emptied --&gt; no --&gt; start_database_again was_data_directory_emptied --&gt; yes --&gt; configure_restore[Configure Patroni to restore the backup] configure_restore --&gt; start_database[Start the database] start_database --&gt; finish_action[restore started] </code></pre>