Bug 691417

I would like to get a bugzilla filed on spacewalk-koan.

spacewalk-koan

spacewalk-koan-0.1.11-13.el5sat.noarch

Description of problem:  If there is trailing whitespace after the IP address in /etc/resolv.conf, then when attempting to provision a kickstart using ""Use Static Interface" option, client execution returned "Kickstart failed. Koan error.: File "/usr/share/rhn/spacewalkkoan/spacewalkkoan.py", line 101, in initiate update_static_device_records(kickstart_host, static_device) File "/usr/share/rhn/spacewalkkoan/spacewalkkoan.py", line 85, in update_static_device_records raise Exception(msg % (key, pprint.pformat(data))) " (code 1) 

From the Satellite interface, I click on Systems->System Name{netmgt-dbtest01}->Provisioning. I select the Kickstart profile->Create Cobbler Record, Then I select Advanced Configuration. From Advanced Configuration, I select Network Connection "Use static interface" and select eth0. Eth0 is the only active, with link, at the time, and the system has eth0 through eth5. From this screen, I select "Schedule Kickstart and Finish".

Actual result:  client execution returned "Kickstart failed. Koan error.: File "/usr/share/rhn/spacewalkkoan/spacewalkkoan.py", line 101, in initiate update_static_device_records(kickstart_host, static_device) File "/usr/share/rhn/spacewalkkoan/spacewalkkoan.py", line 85, in update_static_device_records raise Exception(msg % (key, pprint.pformat(data))) " (code 1) 

Expected result:  successful Kickstart

Additional info:

Looking at /usr/share/rhn/spacewalkkoan/spacewalkkoan.py :

***
def update_static_device_records(kickstart_host, static_device):
    client = xmlrpclib.Server("https://" + kickstart_host + "/rpc/api")
    data = {"gateway": find_gateway(),\
            "nameservers": find_name_servers(),\
            "hostname": find_host_name(),\
            "device" :  static_device,\
            "ip": find_ip(static_device),\
            "netmask": find_netmask(static_device)}
    msg = """Unable to retrieve the '%s' information needed to update static network configuration information.
             Details:\n %s"""
    for key, value in data.items():
        if not value:
            raise Exception(msg % (key, pprint.pformat(data)))
    client.system.setup_static_network(getSystemId(), data)
***

The exception is raised if one of the pieces of information cannot be determined (gateway, nameservers, hostname, device, ip, or netmask). The "device" is specified by the user, so that is already pre-determined. The other values are determined by running commands on the client system at the time the script is executed:

***
def find_host_name():
    return execute("hostname")[0]

def find_netmask(device):
    return execute("ifconfig %s | perl -lne '/Mask:([\d.]+)/ and print $1'" % device)[0]

def find_ip(device):
    return execute("ifconfig %s | perl -lne '/inet addr:([\d.]+)/ and print $1'" % device)[0]

def find_name_servers():
    servers = execute("cat /etc/resolv.conf | perl -lne '/^nameserver\s+(\S+)$/ and print $1'")
    ret = []
    for s in servers:
        if s != "127.0.0.1":
            ret.append(s)
    return ret

def find_gateway():
    response = execute("route -n | awk '/^0\.0\.0\.0/ {print $2}'")
    return response[0]
***

Running through these commands on the client sosreport, I see that find_name_servers does not return a nameserver:

# cat etc/resolv.conf | perl -lne '/^nameserver\s+(\S+)$/ and print $1'
# 

The problem appears to be due to an extra space after the nameserver IP:

# cat -A etc/resolv.conf|grep nameserver
nameserver 161.173.7.10 $

Removing the extra space resolves the issue:

# cat -A etc/resolv.conf.test|grep nameserver
nameserver 161.173.7.10$

# cat etc/resolv.conf.test | perl -lne '/^nameserver\s+(\S+)$/ and print $1'
161.173.7.10