[Kea-users] Raspberry PI 3B+ as DHCPv4 & DHCPv6 HA pair - auto start issue

[russell aspinwall]

Hi,

It appears if the /var/run/kea does not exist it creates the following 
files in /var/run/

-rw-r--r--  1 root root    5 Jan 24 20:45 kea-ctrl-agent.kea-ctrl-agent.pid
-rw-r--r--  1 root root    5 Jan 24 20:43 kea-ctrl-agent6.kea-ctrl-agent.pid
-rw-r--r--  1 root root    5 Jan 24 20:43 kea-dhcp4.kea-dhcp4.pid
-rw-r--r--  1 root root    5 Jan 24 20:43 kea-dhcp6.kea-dhcp6.pid

It would be nice to configure two kea-ctrl-agents with in a single file 
with processes spawned to handle the different ip/socket combinations

"Control-agent": {
     "http-host": "192.168.26.248",
     "http-port": 8080,

     "control-sockets": {
         "dhcp4": {
             "socket-type": "unix",
             "socket-name": "/tmp/kea-dhcp4-ctrl.sock"
         }
     }
  },
"Control-agent": {
     "http-host": "fd22:318a:1212:1:8456:1466:9675:5991",
     "http-port": 8081,

     "control-sockets": {
         "dhcp6": {
             "socket-type": "unix",
             "socket-name": "/tmp/kea-dhcp6-ctrl.sock"
         }
     }

},

Regards

Russell

On 25/01/2019 14:17, Bob Harold wrote:
> On Thu, Jan 24, 2019 at 3:51 PM russell aspinwall <
> raspinwall at willows7.myzen.co.uk> wrote:
>
>> Hi,
>>
>> I have configured a pair of Raspberry PI 3B+ using Ubuntu 18.10 and Kea
>> 1.4.0-P1-3 which is available for Ubuntu 18.10.
>>
>> In order to keep the DHCPv4 and DHCPv6 separate I have created two
>> kea-ctrl-agent config files /etc/kea/kea-ctrl-agent.conf and
>> /etc/kea/kea-ctrl-agent6.conf. I copied /usr/sbin/kea-ctrl-agent to
>> /usr/sbin/kea-ctrl-agent6.
>>
>> In the /etc/kea/kea-ctrl-agent.conf I have used the Raspberry PI IPv4
>> address and port 8080 and socket /tmp/kea-dhcp4-ctrl.sock
>>
>> In the /etc/kea/kea-ctrl-agent6.conf I have used the Raspberry PI IPv6
>> Unique Local Unicast address and port 8081 with socket
>> tmp/kea-dhcp6-ctrl.sock.
>>
>> The kea-dhcp4.conf and kea-dhcp6.conf files are adjusted to use the
>> correct socket and http://address:port.
>>
>> I have been using systemd :( to start the kea-ctrl-agent,
>> kea-ctrl-agent6, kea-dhcp4-server and kea-dhcp6-server. When I reboot
>> the PI the kea-ctrl-agent is not running when I log in but the
>> kea-ctrl-agent6 is running.
>>
>> If I manually start
>>
>> /usr/sbin/kea-crtl-agent -c /etc/kea/kea-ctrl-agent.conf &
>>
>>    I get a warning but the DHCPv4 HA starts working
>> "Unable to use interprocess sync lockfile (No such file or directory):
>> /var/run/kea/isc_kea_logger_lockfile
>> Unable to use interprocess sync lockfile (No such file or directory):
>> /var/run/kea/isc_kea_logger_lockfile
>> Unable to use interprocess sync lockfile (No such file or directory):
>> /var/run/kea/isc_kea_logger_lockfile
>> Unable to use interprocess sync lockfile (No such file or directory):
>> /var/run/kea/isc_kea_logger_lockfile"
>>
>> I would like to get all the services starting during a reboot, any
>> pointers to get the processes running would be appreciated.
>>
>
> Based on the error message, both processes might be trying to use the same
> lock file,
> /var/run/kea/isc_kea_logger_lockfile
> or maybe that directory does not exist, or has wrong permissions.
> You need to somehow configure them to use different lock files.
> I don't use Kea, so I have no idea how to configure that.
>

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