====== Nagios with Thruk ======

Thruk is a web interface able to collect informations and alerts from multiple nagios or icinga servers.

Here is an example of infrastructure:

{{:monitoring:nagios_thruk01.png?550}}

    SRV-THRUK: Apache & Thruk (the thruk server can also be used as local nagios server)
    SRV-NAGIOS1: Nagios & Check Mk (10.10.10.20)
    SRV-NAGIOS2: Nagios & Check Mk
    SRV-NAGIOS3: Nagios & Check Mk

After installing the packages thruk, and apache2, you are able to connect to Web interface    
  http://localhost/thruk

Login and password are: thrukadmin

You can find the Thruk config into /etc/thruk
  * thruk.conf : global thruk config, do not modify
  * thruk_local.conf : custom config that can be modified

When connected first time to web interface, the thruk key is generated for the server, you can also use the following command:
<cli prompt='#'>   
# dd if=/dev/urandom count=1000 bs=4096 | md5sum | awk '{print $1}' > /var/lib/thruk/secret.key
</cli>

Here is an example with a nagios server with local thruk also acting as central thruk for other nagios/thruk host. 

The name correspond to "site" in Thruk, auth correspond to the secret.key 
<cli prompt='#'>
[root@srv-thruk thruk]# cat /etc/thruk/thruk_local.conf
############################################
# put your own settings into this file
# settings from this file will override
# those from the thruk.conf
############################################
<Component Thruk::Backend>
    <peer>
        name    = DATACENTER1
        id      = a891f
        type    = http
        state_host  = 10.10.10.20
        section = SLA
        <options>
            peer          = https://10.10.10.20/thruk
            auth          = 9f33333f5203b7e7ba24da88861b7fff
        </options>
    </peer>
    <peer>
        name    = DC-LOCAL
        id      = 7317e
        type    = livestatus
        section = MYLOCAL
        <options>
            peer          = /usr/lib64/nagios/rw/live
        </options>
    </peer>
</Component>
show_backends_in_table=1
ssl_verify_hostnames=0
group_paging_grid=5,*10,50,all
group_paging_summary=10,*50,100,all
[root@srv-thruk thruk]#
</cli>