Is it possible to use one domain for two Rails projects on two different droplets? I have two droplets with two different Rails 5 projects (ubuntu 18, nginx, puma). One for the website and another for API (backend for mobile app). I mean that I want to buy example.com domain. After that, I want to use example.com for website and api.example.com for API. I think that I should make some work with nginx config? Should I use private IP? Which droplet should process traffic depending on url?
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That’s certainly feasible.
Make Sure api.example.com resolves to the intended Droplet and Nginx has virtual hosts configured to handle requests for this subdomain. Same applies to Main domain on the other Droplet.
Private IPs aren’t required if you are looking to use a domain and subdomain hosted on separate droplets. Let me know if you have any further questions.