By lukasblu
Hello, I run a saas where our customers can create a booking process. For this, the connection of an own domain is also possible. So it must be possible to point different domains to certain parts of the app. The customers can connect their own domains with an A record. Is that also possible here?
Thanks in advance :)
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It is possible to run multiple domains with App Platform. There are limits to the number of domains allowed by default. If you plan to run a SaaS style app with more than a few dozen, I recommend talking to our support/sales team. The App Platform also supports wildcard domains (ex. *.example.com) which can be used to ease configuration of lots of subdomains.
As for routing, we pass in the original HTTP Host header with all requests. This should allow your application to differentiate a request addressed to customer-a.com from one addressed to customer-b.com. If you need to route traffic from customer-a.com to your PHP service, and from customer-b.com to your Ruby service, we recommend splitting those into two apps. We have per-domain component routing within the same app on our road-map, but it’s not yet supported.
Lastly, you mention A records. App Platform domains are configured for with CNAMEs. For example, to create www.example.com you would add a CNAME record for www with the target example-app.ondigitalocean.app to your example.com domain zone. For apex domains (without subdomains, ex. example.com), it’s necessary to use CNAME flatting (sometimes called A-NAMEs, or alias records). If the domain is managed by DNS, App Platform will automatically create the alias records. Not all providers support CNAME flattening; NameCheap, and DNSimple are known to work.
Hey there,
Quick update here, the ability to point multiple domains to different services in a single App Platform app is currently being worked on by the DigitalOcean team!
You can follow the progress (and upvote/comment to show support) here: 👉 https://ideas.digitalocean.com/app-platform/p/point-domains-to-specific-services
Definitely a super useful feature for multi-tenant setups like yours. Keep an eye on that page for updates!
- Bobby
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