[bug#27650] [PATCH] gnu: services: admin: Add tailon.

[Christopher Baines <mail@cbaines.net>]

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On Mon, 17 Jul 2017 11:52:57 +0200
ludo@gnu.org (Ludovic Courtès) wrote:

> Christopher Baines <mail@cbaines.net> skribis:
> 
> > * gnu/services/admin.scm
> >   (<tailon-configuration>, <tailon-configuration-file>): New record
> > types. (tailon-configuration-files-string,
> > tailon-shepherd-service): New procedures.
> >   (%tailon-accounts, tailon-service-type: New variables.
> > * doc/guix.texi (Monitoring Services: Document the Tailon service.  
> 
> [...]
> 
> > +@deftp {Data Type} tailon-configuration-file
> > +Data type representing the configuration options for Tailon.
> > +This type has the following parameters:
> > +
> > +@table @asis
> > +@item @code{files} (default: @code{(list "/var/log")})
> > +List of files to display. The list can include strings for a single
> > +file, or a list, where the first item is the name of a subsection,
> > and  
> 
> s/file/file or directory/ (I assume it recurses into directories?)

Yep, it shows the files in the directory. I've sent an updated patch
with this change.

> > +@item @code{relative-root-path} (default: @code{#f})
> > +Prefix to use for all paths, set to @code{#f} to disable using a
> > prefix.  
> 
> s/path/directory/ :-)

So, it turns out I'd completely misinterpreted this option, I was
thinking it was about the log files, as in you would set it to /var/log
if you wanted to specify filenames relative to there. That is wrong,
its actually about the URL path, so if you want to have Tailon at
http://localhost/tailon/ you set the relative-root to /tailon/. I've
now updated the code and docs for this.

> OK to push with these changes, thank you!

I've sent the two patches again. I also was able to debug the issue I
was having with the system test, I needed to get Tailon to bind to
0.0.0.0, rather than localhost for it to work, and with that change,
the system test works!

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