Redirecting inbound traffic to backup/snapshot droplet
I want to upgrade my droplet from Ubuntu 16.04 to 20.04. I know that the first steps are to create a snapshot and then create a new droplet from the snapshot.
To get inbound traffic to the backup droplet while the main droplet is updating, is it as simple as changing the A record for the domain to use the IP of the backup? Can I assume that the backup droplet will be fully functioning as soon as it’s created? Will changing the IP on the A record create significant downtime?
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