[hobbit] CPAN Modules

[david.peters at industry.nsw.gov.au]

Buchan Milne <bgmilne at staff.telkomsa.net> wrote on 09/06/2010 07:10:54 PM:

> [image removed] 
> 
> Re: [hobbit] CPAN Modules
> 
> Buchan Milne 
> 
> to:
> 
> hobbit
> 
> 09/06/2010 07:15 PM
> 
> Cc:
> 
> david.peters
> 
> Please respond to hobbit
> 
> On Wednesday, 9 June 2010 00:24:27 david.peters at industry.nsw.gov.au 
wrote:
> > As I use perl mostly for interfacing to hobbit for tests, reports etc 
I
> > have quite a number of perl modules floating around.
> > 
> > Given that CPAN is the easiest way to upload, install manage etc, I 
have
> > installed the modules there.
> 
> Well, it's fine for distribution, installation is debatable (I 
> usually use the 
> distro package manager, but my distro has > 2000 CPAN modules).
> 
> However, where should the VCS for this be? How about a perl subdirectory 
on 
> xymon svn on SF?
> 

Agreed. Is already in svn just in a different repository. Happy to move 
it.

> > I have created a top level Module called Xymon which is simple a place
> > holder.
> > 
> > So far I have uploaded Xymon::Client which provides a perl interface 
to
> > sending status updates:
> 
> I started on one a few months ago, but no one seemed interested at the 
time. 
> The next thing I needed for myself was an interface to parsing bb-hosts 
to a 
> page structure.
> 

We do that here via the database interface. Eg by owner and location and 
application.

> I've attached what I had.
> 
> > 
> > #!/usr/bin/perl
> > 
> > use Xymon::Client;
> > 
> > my $xymon = Xymon::Client->new(.......);
> > 
> > $xymon->send(.....);
> > 
> > Documentation for this is included on cpan and when you install the
> > module.
> > 
> > The other module I have installed is Xymon::Monitor::Informix which 
tests
> > connectivity to remote Informix Databases
> > This updates a test called database for servers that run informix
> > databases and lists the status of each database on the status screen.
> 
> How does this compared to dbcheck.pl from http://hobbit-perl-
> cl.sourceforge.net/ ?
> 
> > 
> > I have quite a few more to add but I was hoping that anyone else that 
has
> > perl scripts, May add them there as modules. If help is required
> > I can assist.
> 
> Well, I was aiming to port some of mine to my Xymon::Client module.
> 
> 
> > Some of the upcoming releases of modules include:
> >         Xymon::Server which provides an interface to the various 
server
> > environment variables + some utility functions such as redrawing the
> > screen.
> 
> I don't know if it should draw the screen, however if it can parse 
various 
> config files and provide structures that can be used to compose a view 
in a 
> templating system, that would be better.
> 

sorry I meant running bbgen using the config parameters out of 
hobbitserver.cfg,
which is useful after updating various files or acknowledging events.


> For example, to provide an Ajax view, redrawing the screen itself in 
perl is 
> useless, but providing the structure in JSON is useful ....
> 
> >         Xymon::Server::History which returns a hash of all events for 
all
> > or selected servers - I currently use this for generating excel 
reports.
> >         Xymon::Server::Clients which provides an interface to the
> > hobbitclient.cfg file and includes a web interface.
> >         Xymon::Server::Alerts which provides an interface
> > hobbit-alerts.cfg
> > 
> >         Xymon::Monitor::MSSQL which provides a status test for sql 
server
> > databases
> >         Xymon::Monitor::Oracle which provides a status test for oracle
> > servers
> >         Xymon::Monitor::SunContainer which provides a way fo testing
> > Containers running on a Solaris node.
> > 
> > There are a few others that I have but that is enough for now.
> > 
> > BTW we still use a database to store all information about our servers 
and
> > routers and then use this to generate the bbhosts and include files. 
This
> > includes
> > a screen under INFO for a host that provides this information within
> > hobbit. 
> 
> Well, in devmon, I have some work in my local checkout which populates 
some 
> discover-related information into a database (e.g., cdp neighbours, IPs, 

> routes).
> 
> > Allows us to do advanced searching based on other parameters,
> > using an advanced search
> > web screen within hobbit.
> > 
> > Last time I spoke of the database there seemed to be very little 
interest
> > in it so it has stayed where it is and hasn't been used anywhere else.
> 
> I think having a database is useful. I think there was resistance to 
having 
> all the monitoring depend on a database.
> 
> For example, if configuration information is to be in a database, 
itshould be 
> dumped out, so that no matter what happens to the database, monitoring 
will 
> work.
> 

Sorry, Xymon is not tied to the database in any way other than that the 
database
is used to create the bbhosts file when a change is made. And the info 
screen for a server
contains a link to a web view of the data. Perhaps some diagrams and 
screenshots were
in order.


> > We have applications tied to servers in the database
> 
> Well, service dependency information should be captured, in order to 
easily 
> provide a services view. While this can be hacked in at present with the 

> combo-test, a better view is required (amongst other issues).
> 

the bbhosts creation routine generates pages based on things such as 
application/service.


> > and use it for a web
> > based outages application. When an outage is logged, not only does it 
send
> > an email
> > to subscribed users with details of the servers and the applications, 
it
> > also automagically disables that host(s) in hobbit for the period of 
the
> > outage.
> 
> Well, this should probably be migrated onto the developer list, and 
> I think we 
> should discuss the goals before finalising requirements/design etc.
> 

Agreed most of the work required from a xymon public perspective is design 
and integration,
not coding.


The trick I guess is to get from a working system here to a publicly 
available group of add-ons.

> Regards,
> Buchan
> [attachment "Client.pm" deleted by David Peters/DII/NSW] [attachment
> "bb.pl" deleted by David Peters/DII/NSW] [attachment "get.pl" 
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