Configuring Backblaze Cloud Storage access in UpdraftPlus

This guide covers configuring the UpdraftPlus plugin to enable sending backups to the Backblaze B2 Cloud Storage service.

It is assumed that you have already set up a Backblaze account and bucket. For instructions on setting up Backblaze, please see their B2 Starter Guide.

Please Note: To backup to Backblaze, you will need to install UpdraftPlus Premium, or the Backblaze add-on.

Method 1: Using the Master Application Key

This method is the simplest to set up. However, please note that your Master Application Key can be used to gain full access to your Backblaze account. As such, we recommend Method 2 below.

First, log into your Backblaze account and open the Application Keys page: https://secure.backblaze.com/app_keys.htm

If you have not done so already, generate a Master Application Key. Copy or note down all details, especially the application key itself, as this will only be displayed once.

Backblaze Master Application Key

In the UpdraftPlus settings, enter the following details:

  • Account ID – your Account ID is the same as the Master Application KeyID
  • Application key – The master application key that you copied above
  • Bucket application key ID – leave this blank
  • Backup path – In the Bucket name field, enter the name of the bucket you wish to store backups. The ‘some/path’ field is the sub-directory in the bucket, or can be left blank

backblaze UpdraftPlus Settings Master Key

After entering your credentials, test the Backblaze settings, then save your settings at the bottom of the page.

Method 2: Using a bucket-specific application key

This method is more secure than using the Master Application Key, as it restricts access to a single bucket

First, log into your Backblaze account and open the Application Keys page: https://secure.backblaze.com/app_keys.htm

If you have not done so already, generate a Master Application Key. Now, generate a new application key using the button below your Master Key.

Backblaze add a new application key

Enter a name for the key and select the bucket to allow access to. UpdraftPlus will require Read and Write access. Create the new key.

Backblaze application key options

After the key is created, you will be shown the application key details. Copy or note these down, especially the application key itself, as this will only be displayed once.

Backblaze new key

In the UpdraftPlus settings, enter the following details:

  • Account ID – your Account ID is the same as the Master Application KeyID
  • Application key – The new application key that you copied above
  • Bucket application key ID -The ‘keyID’ of the new application key
  • Backup path – In the Bucket name field, enter the name of the bucket you specified in the step above. The ‘some/path’ field is the sub-directory in the bucket, or can be left blank

Backblaze UpdraftPlus settings

After entering your credentials, test the Backblaze settings, then save your settings at the bottom of the page.