Attaching custom hostname to worker

Is it possible to use the custom domain on a worker with a custom hostname I have set up. ie the domain I want to attach doesn't belong to the zone I have?

zegevlier•6/7/23, 9:10 AM

No, you can only run workers on zones on your own account

Erisa•6/7/23, 10:42 AM

Fun sidenote though: You can with Pages Functions, as long as its a subdomain (i.e. not the apex example.comexample.com) and added as a custom domain to the project

Erisa•6/7/23, 10:42 AM

Also

Erisa•6/7/23, 10:42 AM

Just realised

Erisa•6/7/23, 10:42 AM

You can do this with Workers if you add Cloudflare for SaaS

Erisa•6/7/23, 10:42 AM

Add the domain as a Custom Hostname in SaaS, then run the worker on a route including that domain

akandeaOP•6/7/23, 12:55 PM

I have successfully done this by putting a route on worker - however due to the limitations of routes I would like to be able to do this without routes, ie something similar to custom domains.

akandeaOP•6/7/23, 12:56 PM

Custom hostnames doesn't seem to be the issue here, its pointing that hostname at a worker that seems to be lacking flexibility

Erisa•6/7/23, 12:58 PM

Its not possible sorry, workers custom domains won't work with saas custom hostnames, you have to use routes currently.

It is possible to set a route to */**/* and then add exclusions for your zone hostnames instead of inclusions, but its still not as neat as the custom domain experience

akandeaOP•6/7/23, 1:02 PM

Do you know if theres any way to deploy a worker to multiple domains?

Is there any scope for cloudflare to allow custom hostnames on workers? Seems like a valid user journey as you have to prove ownership of domain when you do custom hostnames, so if you've proved you own it I think you should be able to attach a worker to it

akandeaOP•6/7/23, 1:07 PM

Say I have control of 4 domains and I want to deploy a worker to any one of these domains - is there anything I can do architecturally to allow this

Erisa•6/7/23, 1:12 PM

You can have multiple routes

akandeaOP•6/7/23, 1:14 PM

The reason why I can't use routes is because I can't have these workers service bound, but I worker to worker calls are blocked when on routes - they aren't blocked on custom domains however

Erisa•6/7/23, 1:14 PM

For worker to worker communication its recommended to use service bindings, do you know if that would work?

akandeaOP•6/7/23, 1:16 PM

Sorry if i didn't make this clear but I can't bind in this case due to them being separate services.

We do make use of bindings but in the case where you're hosting a worker behind a domain, we don't want all other services to know that it is being hosted on a worker in order to make a call to it.

Attaching custom hostname to worker

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