Clarification on Nginx Unit ASGI

[Ahmad Ismail]

Dear Sergey Osokin,

Thank you very much for the kind response. That is enough to get me started.

*Thanks and Best Regards,Ahmad Ismail*


On Thu, Oct 21, 2021 at 7:35 PM Sergey A. Osokin <osa at freebsd.org.ru> wrote:

> Hi Ahmad,
>
> hope you're doing well these days.
>
> On Thu, Oct 21, 2021 at 11:54:05AM +0600, Ahmad Ismail wrote:
> > I asked After Nginx Unit, Do we still need ASGI like Uvicorn, Hypercorn,
> > Daphne etc <https://stackoverflow.com/q/69642063/1772898>
> >
> > There one comment confused me. The comment says:
> >
> > nginx unit is an ASGI compliant server; you're replacing
> > > uvicorn/hypercorn/daphne/etc. with nginx unit instead. It's a choice
> you
> > > make just like you'd make using either of those three or other
> alternatives.
>
> Well, unicorn/Hypercorn/Daphnie are Asynchronous Server Gateway Interface
> (ASGI) servers, so it's possible to run an ASGI application with any of
> them.
>
> It's also true that NGINX Unit is an ASGI server, so it's also possible to
> run
> the same ASGI application on top of NGINX Unit.
>
> > I am not understanding what it means. Does it mean, I have to install
> both
> > nginx and nginx unit where nginx unit is the replacement for uvicorn /
> > hypercorn / daphne etc. Or, nginx unit alone can do what nginx + uvicorn
> /
> > hypercorn / daphne etc. does.
>
> An answer for the question how to run an application in an evnronment
> definitely depends on an application and its architecture.  The list of
> questions here starts from the following:
>
> - does the application needs caching?
> - does the application needs to work with FQDNs or IP addresses?
> - does the application needs a session persistance?
> - TLS termination on a frontend (NGINX) or backend (NGINX Unit)?
> - load balancing
>
> and so on.
>
> > I asked the same question on FastAPI
> > <https://github.com/tiangolo/fastapi/issues/3128#issuecomment-947391963>
> > github repo
> > <https://github.com/tiangolo/fastapi/issues/3128#issuecomment-947391963
> >.
> > There one part of the answer is unclear to me.
> >
> > > But, but, you will probably need https anyway, I personally prefer some
> > > proxy, I didn't even try Nginx Unit "way" of applying tls but there is
> one
> > > apparently. Nginx Ingress, traefik for k8s, nginx proxy manager for
> swarm,
> > > alone traefik docker image or full nginx, probably tens of other
> solutions.
> >
> > What I understood is I need to do few more things after installing nginx
> > unit. However, the above quote is not clear to me. Can anyone please
> > explain what he meant by it. And do I need to install other stuff after
> > installing nginx unit?
>
> It's easy to start to work with NGINX Unit, deploy an application and see
> how it works.  In case you need an additional functionality, it's possible
> to extend that with NGINX in front.
>
> Hope it's clear.
>
> --
> Sergey Osokin
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