Cloud lock-in isn’t an issue until it is — “any amount of backups are just more eggs in the same basket if everything is under one account.”
Most of the popular one-click server providers (including DigitalOcean, as well as Linode, Vultr, and OVH) provide their own backup offerings for an additional monthly cost (usually proportional to your plan). But as Nicolas learned the hard way, any amount of backups are just more eggs in the same basket if everything is under one account with one credit card on one provider.
Luckily, crafting a DIY automated backup system using a second redundant storage provider isn’t as daunting (nor as expensive) as it might sound. The following steps are how I backup my various VPSes to a totally separate cloud in the sky.
Jake Jarvis writes on his personal blog how to backup various VPS’s to a totally separate cloud provider.