[Freeipa-devel] [PATCH] 0009 Detect and configure all usable IP addresses.

Martin Basti mbasti at redhat.com
Wed Sep 24 18:54:12 UTC 2014


On 24/09/14 15:44, David Kupka wrote:
> On 09/23/2014 08:25 PM, Martin Basti wrote:
>> On 23/09/14 13:23, David Kupka wrote:
>>> On 09/18/2014 06:34 PM, Martin Basti wrote:
>>>> ...
>>>> 1)
>>>> +        if options.unattended:
>>>> +            for ip in ip_addresses:
>>>> +                if search_reverse_zones and 
>>>> find_reverse_zone(str(ip)):
>>>> +                    # reverse zone is already in LDAP
>>>> +                    continue
>>>> +                for rz in ret_reverse_zones:
>>>> +                    if verify_reverse_zone(rz, ip):
>>>> +                        # reverse zone was entered by user
>>>> +                        break
>>>> +                else:
>>>> +                    rz = get_reverse_zone_default(str(ip))
>>>> +                    ret_reverse_zones.append(rz)
>>>> +        elif options.reverse_zones or create_reverse():
>>>> +            for ip in ip_addresses:
>>>> +                if search_reverse_zones and 
>>>> find_reverse_zone(str(ip)):
>>>> +                    # reverse zone is already in LDAP
>>>> +                    continue
>>>> +                for rz in ret_reverse_zones:
>>>> +                    if verify_reverse_zone(rz, ip):
>>>> +                        # reverse zone was entered by user
>>>> +                        break
>>>> +                else:
>>>> +                    rz = get_reverse_zone_default(str(ip))
>>>> +                    rz = read_reverse_zone(rz, str(ip))
>>>> +                    ret_reverse_zones.append(rz)
>>>> +        else:
>>>> +            options.no_reverse = True
>>>> +            ret_reverse_zones = []
>>>>
>>>> You can make it shorter without duplications:
>>>>
>>>> # this ifs can be in one line
>>>> if not options.unatended:
>>>>      if not options.reverse_zones
>>>>          if not create_reverse():
>>>>              options.no_reverse=True
>>>>              return []
>>>>
>>>> for ip in ip_addresses:
>>>>      if search_reverse_zones and find_reverse_zone(str(ip)):
>>>>          # reverse zone is already in LDAP
>>>>          continue
>>>>      for rz in ret_reverse_zones:
>>>>          if verify_reverse_zone(rz, ip):
>>>>              # reverse zone was entered by user
>>>>              break
>>>>          else:
>>>>              rz = get_reverse_zone_default(str(ip))
>>>>              if not options.unattended:
>>>>                  rz = read_reverse_zone(rz, str(ip))
>>>>              ret_reverse_zones.append(rz)
>>>>
>>>
>>> Thanks, I modified it bit different way to alse address recommendation
>>> 3).
>>>
>>>>
>>>> 2)
>>>> Typo?     There is no IP address matching reverze_zone %s."
>>>> ---------------------------------------------^^
>>>>
>>>
>>> Thanks, fixed.
>>>
>>>>
>>>> 3)
>>>> Would be nice to ask user to create new zones only if new zones are
>>>> required. (If all required zones exist in LDAP, you ask user anyway)
>>>>
>>>
>>> I added one more variable and ask only once.
>>>
>>>> 4)
>>>> Ask framework gurus, if installutils module is better place for 
>>>> function
>>>> above
>>>>
>>>>
>>>
>>> Petr^3 said that it's ok to have it in bindinstance.py.
>>>
>>>>
>>>
>> NACK, most important point is 7
>>
>> 1)
>> I'm not sure if this is bug, but interactively is allowed to add only
>> one ip address
>>
>> Unable to resolve IP address for host name
>> Please provide the IP address to be used for this host name: 2001:db8::2
>> The kerberos protocol requires a Realm name to be defined.
>>
>
> For the sake of infinite usability and UX I rewrote it to ask for 
> multiple addresses the same way as for DNS forwarders. Also I really 
> simplified IP address checking code when I was in it. I tested it but 
> please look at it carefully.
> Also I found that ipa-dns-install and ipa-adtrust-install also accept 
> --ip-address param. So I modified ipa-dns-install in the same way as 
> ipa-server-install and ipa-replica-install. After discussion with 
> tbabej I decided to dont touch ipa-adtrust-install now as it do not 
> use specified value at all. I will remove the processing code and mark 
> the param as deprecated in separate patch.
>
>> 2)
>> I'm getting error message
>>
>> Invalid reverse zone 10.in-addr.arpa. for IP address 2001:db8::dead:beef
>> Invalid reverse zone 10.in-addr.arpa. for IP address
>> fed0:babe:baab:0:21a:4aff:fe10:4e18
>>
>>   - or -
>>
>> Do you want to configure the reverse zone? [yes]:
>> Please specify the reverse zone name
>> [0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa.]:
>> Invalid reverse zone 0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa. for IP
>> address fed0:babe:baab:0:21a:4aff:fe10:4e18
>> Please specify the reverse zone name
>> [0.0.0.0.b.a.a.b.e.b.a.b.0.d.e.f.ip6.arpa.]:
>> Using reverse zone(s) 0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa.,
>> 0.0.0.0.b.a.a.b.e.b.a.b.0.d.e.f.ip6.arpa.
>>
>> This shouldn't be there
>
> Moved the message to function used when installation is attended by user.
>
>>
>> Could be better to ask user to specific zone for ip address a.b.c.d.
>
> Probably, but lets leave some work for future.
>
>>
>> 4) just nitpick
>> The IPA Master Server will be configured with:
>> ...
>> IP address(es): 2001:db8::dead:beef, fed0:babe:baab:0:21a:4aff:fe10:4e18
>> ...
>> Reverse zone:  0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa.,
>> 0.0.0.0.b.a.a.b.e.b.a.b.0.d.e.f.ip6.arpa.
>>
>> You have label "IP address(es)", so you should use label "Reverse 
>> zone(s)"
>>
>
> Fixed.
>
>> 5)
>> ipa-server-install --ip-address=10.16.78.105
>> --reverse-zone=10.in-addr.arpa. --reverse-zone=16.10.in-addr.arpa.
>> --setup-dns
>>
>> Creates both reverse zones, but 10.in-addr.arpa. is empty. I'm not sure
>> if this is wrong, but we prevents user to add zone without address in
>> it, so we should prevents, to add empty zone.
>>
>
> It would be nice but not in this patch.
>
>> 6)
>> ipa-replica-prepare --ip-address 10.16.78.105 --ip-address
>> 2001:db8::dead:beef --reverse-zone 1.0.0.2.ip6.arpa. vm-105.example.com
>> Directory Manager (existing master) password:
>>
>> Invalid reverse zone 1.0.0.2.ip6.arpa. for IP address 10.16.78.105
>> Invalid reverse zone 1.0.0.2.ip6.arpa.
>>
>> IMO This should work, right?
>>
>> +                sys.exit("There is no IP address matching reverse zone
>> %s." % rz)
>> I expected at least this error to be shown.
>
> Fixed, thanks.
>
>>
>> 7)
>> ipa-replica-prepare --ip-address 10.16.78.105 --ip-address
>> 2001:db8::dead:beef vm-105.example.com
>> Directory Manager (existing master) password:
>>
>> .......
>> Adding DNS records for vm-105.example.com
>> Values instance has no attribute 'ip_address'
>>
>> Command returns the attribute error.
>> It fails with one --ip-address too.
>>
>
> Sorry, fixed.
>
>>
>> *) Not related with your patch
>> Problem with installation:
>> I'm getting message:
>> IPA server is already configured on this system.
>> Even if I validation wasn't successful and installation was aborted.
>>
>> IPA install detects previous installations by checking state file and
>> restore files. Function get_server_ip_address() stores some data and
>> hosts file and modify the host file, before user agreed installation.
>> This error was there before your patch.
>> https://fedorahosted.org/freeipa/ticket/4561
>>
>>
>>
>
NACK

0)
# ipa-dns-install --ip-address 2001:db8::feed

2014-09-24T06:02:13Z DEBUG stderr=
2014-09-24T06:02:13Z DEBUG   File 
"/usr/lib/python2.7/site-packages/ipaserver/install/installutils.py", 
line 645, in run_script
     return_value = main_function()

   File "/sbin/ipa-dns-install", line 135, in main
     ip_addresses = get_server_ip_address(api.env.host, fstore, 
options.unattended, options)

   File 
"/usr/lib/python2.7/site-packages/ipaserver/install/installutils.py", 
line 473, in get_server_ip_address
     if options.setup_dns:

2014-09-24T06:02:13Z DEBUG The ipa-dns-install command failed, 
exception: AttributeError: Values instance has no attribute 'setup_dns'

1)
# ipa-replica-prepare vm-073.example.com --ip-address 
2620:52:0::fe10:4e18 --ip-address 10.16.78.73
Directory Manager (existing master) password:

Preparing replica for vm-073.example.com from vm-105.example.com
Creating SSL certificate for the Directory Server
Creating SSL certificate for the dogtag Directory Server
Saving dogtag Directory Server port
Creating SSL certificate for the Web Server
Exporting RA certificate
Copying additional files
Finalizing configuration
Packaging replica information into 
/var/lib/ipa/replica-info-vm-073.example.com.gpg
Adding DNS records for vm-073.example.com
Values instance has no attribute 'unattended'

It should be unatended automatically, or we need add the --unattended 
option to ipa-replica-prepare

2) This is nto user friendly, could be IP address check before installation?
[root at vm-073 ~]# ipa-replica-install replica.file.gpg --ip-address 
2620:52::fe10:4e18 --reverse-zone 10.in-addr.arpa.  --setup-dns 
--no-forwarders
Directory Manager (existing master) password:

Run connection check to master
...
<long long list of succesfully configured services />
...
Restarting the KDC
There is no IP address matching reverse zone 10.in-addr.arpa..

LOG:
     return_value = main_function()

   File "/sbin/ipa-replica-install", line 721, in main
     install_bind(config, options)

   File "/sbin/ipa-replica-install", line 265, in install_bind
     reverse_zones = 
bindinstance.check_reverse_zones(config.ip_addresses, 
options.reverse_zones, options, True)

   File 
"/usr/lib/python2.7/site-packages/ipaserver/install/bindinstance.py", 
line 426, in check_reverse_zones
     sys.exit("There is no IP address matching reverse zone %s." % rz)

2014-09-24T06:39:23Z DEBUG The ipa-replica-install command failed, 
exception: SystemExit: There is no IP address matching reverse zone 
10.in-addr.arpa..

3)
I'm not sure if sys.exit() is good, replica-install shoudl wrote 
something about partially configured system

4) I'm not sure if this is the best place to ask about reverse zones
....
Done configuring the web interface (httpd).
Configuring ipa-otpd
   [1/2]: starting ipa-otpd
   [2/2]: configuring ipa-otpd to start on boot
Done configuring ipa-otpd.
Applying LDAP updates
Restarting the directory server
Restarting the KDC
Do you want to configure the reverse zone? [yes]:

5) And error
# ipa-replica-install replica.file.gpg --ip-address 2620:52:xxxx 
--setup-dns
....
Do you want to configure the reverse zone? [yes]:
Please specify the reverse zone name 
[c.4.0.1.0.0.0.0.2.5.0.0.0.2.6.2.ip6.arpa.]:
Using reverse zone(s) c.4.0.1.0.0.0.0.2.5.0.0.0.2.6.2.ip6.arpa.

Your system may be partly configured.
Run /usr/sbin/ipa-server-install --uninstall to clean up.

Unexpected error - see /var/log/ipareplica-install.log for details:
AttributeError: 'str' object has no attribute 'version'

LOG:
2014-09-24T06:50:44Z DEBUG retrieving schema for SchemaCache 
url=ldapi://%2fvar%2frun%2fslapd-IDM-LAB-BOS-REDHAT-COM.socket 
conn=<ldap.ldapobject.SimpleLDAPObject instance at 0x46ba950>
2014-09-24T06:50:45Z DEBUG   File 
"/usr/lib/python2.7/site-packages/ipaserver/install/installutils.py", 
line 645, in run_script
     return_value = main_function()

   File "/sbin/ipa-replica-install", line 721, in main
     install_bind(config, options)

   File "/sbin/ipa-replica-install", line 272, in install_bind
     ca_configured=options.setup_ca)

   File 
"/usr/lib/python2.7/site-packages/ipaserver/install/bindinstance.py", 
line 550, in setup
     self.__setup_sub_dict()

   File 
"/usr/lib/python2.7/site-packages/ipaserver/install/bindinstance.py", 
line 651, in __setup_sub_dict
     if addr.version in (4, 6):

2014-09-24T06:50:45Z DEBUG The ipa-replica-install command failed, 
exception: AttributeError: 'str' object has no attribute 'version'


*) I don't like this asking to specify zone without IP
Do you want to configure the reverse zone? [yes]:
Please specify the reverse zone name 
[0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa.]:
Please specify the reverse zone name [78.16.10.in-addr.arpa.]:



**) I'm not sure how often this case can happen:
master and replica without DNS, you run --ipa-dns-install on master then 
on replica, then replica DNS installation will not try to find existent 
reverse zones in ldap, due configuration in ipa-dns-install.
Maybe you should detect if DNS container exists and then set flag 
"search_reverse_zones=True"

ipa-dns-install:
+    reverse_zones = bindinstance.check_reverse_zones(ip_addresses, 
options.reverse_zones, options)

-- 
Martin Basti




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