---
version: '2.0'
name: tripleo.undercloud_backup.v1
description: TripleO Undercloud backup workflows

workflows:

  backup:
    description: This workflow will launch the Undercloud backup
    tags:
      - tripleo-common-managed
    input:
      - sources_path: '/home/stack/'
      - queue_name: tripleo
    tasks:
      # Action to know if there is enough available space
      # to run the Undercloud backup
      get_free_space:
        action: tripleo.undercloud.get_free_space
        publish:
            status: SUCCESS
            message: <% task().result %>
            free_space: <% task().result %>
        on-success: create_backup_dir
        on-error: send_message
        publish-on-error:
          status: FAILED
          message: <% task().result %>

      # We create a temp directory to store the Undercloud
      # backup
      create_backup_dir:
        action: tripleo.undercloud.create_backup_dir
        publish:
            status: SUCCESS
            message: <% task().result %>
            backup_path: <% task().result %>
        on-success: get_database_credentials
        on-error: send_message
        publish-on-error:
          status: FAILED
          message: <% task().result %>

      # The Undercloud database password for the root
      # user is stored in a Mistral environment, we
      # need the password in order to run the database dump
      get_database_credentials:
        action: mistral.environments_get name='tripleo.undercloud-config'
        publish:
            status: SUCCESS
            message: <% task().result %>
            undercloud_db_password: <% task(get_database_credentials).result.variables.undercloud_db_password %>
        on-success: create_database_backup
        on-error: send_message
        publish-on-error:
          status: FAILED
          message: <% task().result %>

      # Run the DB dump of all the databases and store the result
      # in the temporary folder
      create_database_backup:
        input:
            path: <% $.backup_path.path %>
            dbuser: root
            dbpassword: <% $.undercloud_db_password %>
        action: tripleo.undercloud.create_database_backup
        publish:
            status: SUCCESS
            message: <% task().result %>
        on-success: create_fs_backup
        on-error: send_message
        publish-on-error:
          status: FAILED
          message: <% task().result %>

      # This action will run the fs backup
      create_fs_backup:
        input:
            sources_path: <% $.sources_path %>
            path: <% $.backup_path.path %>
        action: tripleo.undercloud.create_file_system_backup
        publish:
            status: SUCCESS
            message: <% task().result %>
        on-success: upload_backup
        on-error: send_message
        publish-on-error:
          status: FAILED
          message: <% task().result %>

      # This action will push the backup to swift
      upload_backup:
        input:
            backup_path: <% $.backup_path.path %>
        action: tripleo.undercloud.upload_backup_to_swift
        publish:
            status: SUCCESS
            message: <% task().result %>
        on-success: cleanup_backup
        on-error: send_message
        publish-on-error:
          status: FAILED
          message: <% task().result %>

      # This action will remove the backup temp folder
      cleanup_backup:
        input:
            path: <% $.backup_path.path %>
        action: tripleo.undercloud.remove_temp_dir
        publish:
            status: SUCCESS
            message: <% task().result %>
        on-success: send_message
        on-error: send_message
        publish-on-error:
          status: FAILED
          message: <% task().result %>

      # Sending a message to show that the backup finished
      send_message:
        action: zaqar.queue_post
        retry: count=5 delay=1
        input:
          queue_name: <% $.queue_name %>
          messages:
            body:
              type: tripleo.undercloud_backup.v1.launch
              payload:
                status: <% $.get('status', 'SUCCESS') %>
                execution: <% execution() %>
                message: <% $.get('message', '') %>
        on-success:
          - fail: <% $.get('status') = "FAILED" %>