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Tools Open Source Sync WordPress

WP Backup to B2

WordPress backup & sync to Backblaze B2 Cloud Storage Makefile recipe

This recipe is a proof-of-concept to automate backing up and uploading to a remote destination set up as a cronjob. It will create a backup of your WP app, sync it to a Backblaze B2 bucket, add a basic retention policy, and clean any old local backups.


  1. Root access. You could do it with sudo access, but you won’t be able to run this as a cron job.
  2. LAMP/LEMP stack with Bash shell installed.
  3. WP CLI is used to export the DB and generate filenames among other actions.
  4. Backblaze B2 key and bucket(s) set up & configured to sync your files.


1. Clone Repo

Put this in a folder like /root/cron/ or home/user/webapps/ if you just want to run it manually.

$ git clone

The script can be called from anywhere as long as you pass the correct path to where the Makefile is located. See below for instructions.

2. Configure App Settings

Duplicate apps/ and configure the settings for the app you want to backup and sync.

  1. Rename the file to the name of your app to keep things organized.
  2. Pay attention to the paths and comments. The variables are pretty self explanatory, but see “App Settings & Options” below for more details.

3. Running The Recipe

To run the recipe, it requires:

  1. The absolute path where the makefile is located. This is helpful so that you can run it as a cron job or run it manually from anywhere.
  2. The APP variable with the relative path (relative to the file) of the file with all the configured settings of the app you want to backup. There’s no need to add the “.mk” file extension.
  3. The FREQ variable which tells the script what kind of frequency the backup will have. See “App Settings & Options” below for more details.

Here’s an example of a weekly backup run:

$ make -f /root/cron/ APP=apps/app-name FREQ=weekly

File Structure

  • Main recipe to start the backup and sync process.
  • apps/ These are the settings (per app) the recipe needs in order to create a backup and sync to a B2 bucket.
  • Defines colors and variables needed for naming files/directories.

App Settings & Options

  • FREQ = It tells the script what kind of backup frequency this will be. This affects the name of the directory where the backup will be saved and the retention policy for local and remote backups. Valid values are ‘daily’, ‘weekly’, ‘monthly’, and ‘yearly’. If nothing is set or empty, it will default to ‘daily’.
  • LOG_DIR = Name of the directory where the logs are saved.
  • DB_PREFIX & CODE_PREFIX = Prefix added to the filename to the database and codebase respectively.
  • CLEANUP_OLD_BACKUPS = If set to true, the script will find the backups created between now and:

    • 8 days in the past for backups with a value of FREQ=daily
    • 31 days in the past for backups with a value of FREQ=weekly
    • 91 days in the past for backups with a value of FREQ=monthly
    • 366 days in the past for backups with a value of FREQ=yearly
      Once found, it will <strong>delete the local backups</strong> before syncing to the B2 bucket for a simple retention policy. You can customize these values by commenting out the <code>DELETE_...</code> variables and updating as needed. </li> 
        <code>B2_SYNC</code> = If set to false, this won&#8217;t sync the backups to the B2 bucket. It defaults to <code>true</code>.s
        <code>B2_KEEP_...</code> = These are the days that are passed in the &#8211;keepDays flag when syncing to the B2 bucket.
        <code>DELETE_...</code> vs <code>B2_KEEP_...</code> = The main difference is one affects local backups, while the other one affects the retention policy of the B2 bucket.
      <h2 dir="auto">
        <a rel="nofollow noopener" target="_blank" id="user-content-optional-recommendations" class="anchor" aria-hidden="true" href="#optional-recommendations"></a>Optional Recommendations
        Paths in the <code>apps/</code> file resemble an app running on:
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          <a rel="nofollow noopener" target="_blank" href="">Bedrock</a> by Roots
          <a rel="nofollow noopener" target="_blank" href=""></a> server control management
        If you are not running these, simply update the path structure to match your host and app paths.