Re: ConTeXt as a service

From: Hans Hagen <j.hagen@xs4all.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>,
	Denis Maier <maier.de@gmail.com>
Subject: Re: ConTeXt as a service
Date: Wed, 20 Nov 2019 17:43:15 +0100	[thread overview]
Message-ID: <855e8771-67ab-e263-3eb5-81fb704b1d8f@xs4all.nl> (raw)
In-Reply-To: <CAMXdeGHMw3vpBSJtr1MWV+JR9AXetKTkrKxQ8as93YFcNvVpAQ@mail.gmail.com>

On 11/20/2019 5:07 PM, Denis Maier wrote:
> Hi everyone,
> Is it possible to run ConTeXt as a service on a server? If yes, is there 
> documentation about this?
> Background: I'm currently on the PKP conference, and we are discussing 
> OJS plugins for automated PDF production. I was wondering if ConTeXt 
> could be an option...
> Best,
> Denis
> 
> P.S.: I'll be giving here a brief introduction to XML typesetting with 
> ConTeXt to spread the word... just to let you know.
Running tex on demand is not really a problem but when it has to happen 
after clicking a button there is the problem of preventing a (web) 
server locking due to such aprocess as a tex run normally takes some 
time ... can be a second for some simple document but mayb eminutes for 
a 500 page document with images on each page and some 4 runs needed to 
get all cross references and lists right

so, one ends up with some independent service with a cue and a way to 
query the state of a run

there is actually code in the distribution (or can be added) that can be 
used but i never came to document it in detail (it makes no sense if 
only i use it) .. it boils down to delegating to one or more vm running 
a service that runs and reports status

among the aspects to take into account are:

- are resources needed (can be some mount)
- how long does the result needs to be kept
- when is stuff cleaned up
- how to keep things secure (no problem with xml)

etc

anyway, we have some of such workflows and once they work they do so 
forever

Hans

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