I didn't already have an archival/backup provider, so I chose Google Cloud "cloud" storage for the low price-point - 0.7 cents per GB/month ( Plus you start with $300 credit even when signing up for the free tier). (Optional) Create Google Cloud Storage bucket If you're following my filesystem layout, create /var/data/config/duplicity ( for the config), and /var/data/duplicity ( for the metadata) as per the following example: We'll need a folder to store a docker-compose. Credentials for one of the Duplicity's supported upload destinations.Docker swarm cluster with persistent shared storage.So what does this mean for our stack? It means we can leverage Duplicity to backup all our data-at-rest to a wide variety of cloud providers, including, but not limited to:
Because duplicity uses GnuPG to encrypt and/or sign these archives, they will be safe from spying and/or modification by the server. Because duplicity uses librsync, the incremental archives are space efficient and only record the parts of files that have changed since the last backup. Duplicity backs directories by producing encrypted tar-format volumes and uploading them to a remote or local file server.
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