Difference between revisions of "Cobbler installation on Ubuntu"

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(Created page with "== Pre-Requisits == For this installation, we will need to have the following services installed: '''dhcp''', '''bind''' & '''apache'''. Install with the following yum comman...")
 
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Install with the following yum command:
 
Install with the following yum command:
 
<syntaxhighlight>
 
<syntaxhighlight>
−
apt-get install apache2 isc-dhcp-server bind9
+
root@ubuntu:~# apt-get install apache2 isc-dhcp-server bind9
 
</syntaxhighlight>
 
</syntaxhighlight>
  
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<syntaxhighlight>
 
<syntaxhighlight>
 
INTERFACES="eth1"
 
INTERFACES="eth1"
 +
</syntaxhighlight>
 +
 +
== Install Cobbler ==
 +
<syntaxhighlight>
 +
root@ubuntu:~# apt-get install cobbler cobbler-web
 +
</syntaxhighlight>
 +
 +
== Restart Apache ==
 +
<syntaxhighlight>
 +
root@ubuntu:~# service apache2 restart
 +
* Restarting web server apache2
 +
apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
 +
... waiting apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
 +
</syntaxhighlight>
 +
 +
== Add a few more packages to satisfy some cobbler requirements ==
 +
Install '''debmirror''' with yum (needed to manage debian deployments):
 +
<syntaxhighlight>
 +
root@ubuntu:~# apt-get install debmirror
 +
</syntaxhighlight>
 +
 +
Install '''pykickstart''' with yum (A python library for manipulating kickstart files):
 +
<syntaxhighlight>
 +
root@ubuntu:~# apt-get install pykickstart
 +
</syntaxhighlight>
 +
 +
== Configure cobbler ==
 +
Get cobbler to manage '''dhcp''' and '''dns''' by setting the following in '''/etc/cobbler/settings''':
 +
<syntaxhighlight>
 +
manage_dhcp: 1
 +
manage_dns: 1
 +
</syntaxhighlight>
 +
 +
Set server ip addresses in '''/etc/cobbler/settings''':
 +
<syntaxhighlight>
 +
next_server: 172.28.0.100
 +
server: 172.28.0.100
 +
</syntaxhighlight>
 +
 +
Confirm the following are set in '''/etc/cobbler/modules.conf''':
 +
<syntaxhighlight>
 +
[dns]
 +
module = manage_bind
 +
 +
[dhcp]
 +
module = manage_isc
 +
</syntaxhighlight>
 +
 +
Edit '''/etc/cobbler/dhcp.template''' with relevant network information (for example):
 +
<syntaxhighlight>
 +
# ******************************************************************
 +
# Cobbler managed dhcpd.conf file
 +
#
 +
# generated from cobbler dhcp.conf template ($date)
 +
# Do NOT make changes to /etc/dhcpd.conf. Instead, make your changes
 +
# in /etc/cobbler/dhcp.template, as /etc/dhcpd.conf will be
 +
# overwritten.
 +
#
 +
# ******************************************************************
 +
 +
ddns-update-style interim;
 +
 +
allow booting;
 +
allow bootp;
 +
 +
ignore client-updates;
 +
set vendorclass = option vendor-class-identifier;
 +
 +
subnet 192.168.42.0 netmask 255.255.255.0 {
 +
    option routers            192.168.42.1;
 +
    option domain-name-servers 192.168.42.1;
 +
    option subnet-mask        255.255.255.0;
 +
    range dynamic-bootp        192.168.42.100 192.168.42.150;
 +
    filename                  "/pxelinux.0";
 +
    default-lease-time        21600;
 +
    max-lease-time            43200;
 +
    next-server                $next_server;
 +
}
 +
. . . . .
 +
</syntaxhighlight>
 +
 +
Attempt to start '''dhcpd''':
 +
<syntaxhighlight>
 +
service dhcpd restart
 +
</syntaxhighlight>
 +
 +
'''NB''': if the dhcpd service isn't running and it fails to start, it may be because the default '''/etc/dhcpd.conf''' file is blank. Enter the above information and start the dhcpd service (it needs to be running for cobbler sync (below) to complete fully). The content of '''/etc/dhcpd.conf''' will be overwritten with the contents of '''/etc/cobbler/dhcp.template''' once <code>cobbler sync</code> has been performed.
 +
 +
Run cobbler check:
 +
<syntaxhighlight>
 +
cobbler check
 +
</syntaxhighlight>
 +
 +
Run cobbler sync:
 +
<syntaxhighlight>
 +
cobbler sync
 
</syntaxhighlight>
 
</syntaxhighlight>

Revision as of 12:01, 3 May 2013

Pre-Requisits

For this installation, we will need to have the following services installed: dhcp, bind & apache.

Install with the following yum command: 

root@ubuntu:~# apt-get install apache2 isc-dhcp-server bind9

If necessary, the dhcpd service can be restricted to servicing dhcp requests on just one port. To do this, edit the /etc/default/isc-dhcp-server file and set the following line: 

INTERFACES="eth1"

Install Cobbler

root@ubuntu:~# apt-get install cobbler cobbler-web

Restart Apache

root@ubuntu:~# service apache2 restart
 * Restarting web server apache2
apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
 ... waiting apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName

Add a few more packages to satisfy some cobbler requirements

Install debmirror with yum (needed to manage debian deployments): 

root@ubuntu:~# apt-get install debmirror

Install pykickstart with yum (A python library for manipulating kickstart files): 

root@ubuntu:~# apt-get install pykickstart

Configure cobbler

Get cobbler to manage dhcp and dns by setting the following in /etc/cobbler/settings: 

manage_dhcp: 1
manage_dns: 1

Set server ip addresses in /etc/cobbler/settings: 

next_server: 172.28.0.100
server: 172.28.0.100

Confirm the following are set in /etc/cobbler/modules.conf: 

[dns]
module = manage_bind

[dhcp]
module = manage_isc

Edit /etc/cobbler/dhcp.template with relevant network information (for example): 

# ******************************************************************
# Cobbler managed dhcpd.conf file
#
# generated from cobbler dhcp.conf template ($date)
# Do NOT make changes to /etc/dhcpd.conf. Instead, make your changes
# in /etc/cobbler/dhcp.template, as /etc/dhcpd.conf will be
# overwritten.
#
# ******************************************************************
	
ddns-update-style interim;

allow booting;
allow bootp;

ignore client-updates;
set vendorclass = option vendor-class-identifier;

subnet 192.168.42.0 netmask 255.255.255.0 {
     option routers             192.168.42.1;
     option domain-name-servers 192.168.42.1;
     option subnet-mask         255.255.255.0;
     range dynamic-bootp        192.168.42.100 192.168.42.150;
     filename                   "/pxelinux.0";
     default-lease-time         21600;
     max-lease-time             43200;
     next-server                $next_server;
}
. . . . .

Attempt to start dhcpd: 

service dhcpd restart

NB: if the dhcpd service isn't running and it fails to start, it may be because the default /etc/dhcpd.conf file is blank. Enter the above information and start the dhcpd service (it needs to be running for cobbler sync (below) to complete fully). The content of /etc/dhcpd.conf will be overwritten with the contents of /etc/cobbler/dhcp.template once cobbler sync has been performed.

Run cobbler check: 

cobbler check

Run cobbler sync: 

cobbler sync
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