On Mon, Jul 30, 2018 at 12:15 PM Tezarin <[email protected]> wrote:

> Hi,
> Is there any way that we have a trigger added to our Dockerfile or
> docker-compose, etc. to get notified if a newer version of the
> Guacamole/Guacamole docker image comes out and then our docker compose can
> build a new image based on that upstream image?
> Thanks


Well, since the processing of a Dockerfile or Docker Compose file is
generally triggered manually, you'd have to do something to automate that
manual triggering.  I don't know of anything built-in to Docker that would
do this, but seems like you could probably script something that checks the
current version and the available version periodically and updates.  I
would think this would be pretty easy in bash/perl/python/etc.  Also, looks
like there is a project out there called Watchtower that helps with
auto-updating containers:

 https://github.com/v2tec/watchtower

To answer the original question, though, I don't think there is anything
that could be added to the Guacamole Dockerfile that would automatically
trigger this - you're going to have to add something else on.

-Nick

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