host - a service

[Jason Burnett]

Well, I just checked nagios into our CVS repository so i can start
making some patches. I also need a way to give someone access to view
all information about a host/service, only not be able to disable alerts
or testing. Am I missing something simple or is this functionality not
currently in the software?

on Fri Feb 07 Andrew Meredith spoke forth with the blessed manuscript
> Hi Jason,

> I have been scouting around that area of the code myself just recently, 
> after trying to do something to yourself.

> As far as I can tell, there is nothing that will do exactly what you 
> want, but it will get quite close. You will still have the service in 
> the system, but it will be switched off ... the same as if you didn't 
> mention the lack of this service on this particular host and then 
> switched it off through the interface.

> There are 3 parameter names that seem to have something to do with this 
> function.

> enable_active_checks
> --------------------

>   $ fgrep -rl enable_active_checks .
>   ./html/docs/distributed.html

> This appears to be something that is either going to be and hasn't yet, 
> or used to be and hasn't been trimmed out of the docs yet .. either that 
> or its a typo :)

> active_checks_enabled
> ---------------------

> This is service template parameter that has support all through the 
> template reading and writing stuff and in the examples and convertcfg 
> program.

> However ..

> checks_enabled
> --------------

> ... is what it becomes when an xodtemplate_service structure is used to 
> initialise a service structure using set_service_state_information() in 
> xdata/xrddefault.c:593.

> (It is also a parameter at the host level where it keeps it's name the 
> whole way through and would seem to be involved in host level checks.)

> Why have just gone through all this ? .. two reasons.

> 1 - I would be very grateful if someone who actually has a clue (unlike 
> myself) would please have a look through the above and confirm whether I 
> have got it right or not. The name change caught me right out until I 
> spotted that the set_service_state_information() argument named 
> active_checks_enabled was given the value of a variable called 
> checks_enabled in xdata/xrddefault.c .. which given that checks_enabled 
> is also a parameter in the host object made things a little confusing 
> for a bear of very little brain.

> 2 - If this is true then (in theory .. I think) you should just be able 
> to explicitly reference the service description by hostname and service 
> name and then insert additional parameters of "active_checks_enabled=0" 
>  and "passive_checks_enabled=0" .. I think this should over-ride the 
> value inherited from the hostgroup when that service structure is 
> actually created in memory and render that service inoperative.

> The downside would be that it still shows up in the UI, but has no 
> effect on anything. This as I say is not really what you are after, but 
> might be a reasonable stop-gap until something tidier can be done in 
> version 2.0 ... how about a service parameter called "vanish" (or for 
> the LinuxHeads "mrproper" ;) that causes that service structure to be 
> deleted.


> Having said all that, I haven't got a 1.0 test system on which I can try 
> it right now, so it may well turn out that this is flexing the 
> inheritance mechanism a little bit too hard.

> BTW .. If the developers are watching, I would be quite willing to go 
> through the CVS version and rename the service structure variable from 
> checks_enabled to active_checks_enabled in the code. I know that this 
> would help me understand the logic a little better .. and I suspect that 
> future newcomers might also be a little confused by the sudden change of 
> name.

> Cheers

> Andy M

> Jason Burnett wrote:
> >is there any way to tell a host to ignore one of the tests assigned to
> >it's hostgroup?
> >example:
> >
> >define hostgroup{
> >        hostgroup_name  neospire-virtuals-apache
> >        alias           Neospire Apache & Zeus webservers
> >        contact_groups  admins
> >        members         one,two,linux1
> >}
> >define service{
> >        hostgroup_name                  neo-vs-web-apache
> >        service_description             SSH
> >}
> >
> >
> >define host{
> >#server only runs telnet
> >    host_name       linux1
> >    ....
> >    check_command   **IGNORE SSH**
> >}
> >What I am looking for is an easy way to standardize tests across groups,
> >but as always there are exceptions and I need to be able to tell a
> >certain host to ignore certain tests inherited from it's group.
> >
> >oh and before anyone starts chastising me, I dont actually run telnet on
> >any of my servers.




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