How to create a backup

This is a guide on how to create and list backups of a Charmed MongoDB replica set or sharded cluster using Amazon S3 storage.

Prerequisites

• Configured settings for S3 storage

  • See: How to configure S3 storage on AWS

• A replica set with at least three nodes or a sharded cluster with at least one shard

  • See: How to scale replicas and shards

Create a backup

First, determine the name of the application to pass to Juju when running back up and restore actions:

• For a replica-set deployment, it is the name of your Charmed MongoDB application

• For a sharded cluster deployment, it is the name of the Charmed MongoDB application with the config-server role. Never the shard applications!

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Check that your MongoDB deployment is active and idle with juju status.

To create a backup, use the create-backup action on the leader unit:

juju run <replica-set name | config-server name>/leader create-backup

List all backups

To list all available, failed, and in-progress backups, use the list-backup action on the leader unit:

juju run <replica-set name | config-server name>/leader list-backups