OK, thank you. I'll wait for official feature...
Until then I made small modification to Openvswitch.rb, which allows to add IP
aliases to the VM's template by adding IPs to ALIAS_IP="IP1[,IP,IP..]" under
NIC section.
This only needed if CONF[:arp_cache_poisoning] is set globally.
$ diff OpenvSwitch.rb OpenvSwitch-bkp.rb
38c38
<
---
>
53,56c53
<
< # Allow VIP (aliases), if ARP Cache is ON
< allow_vip if CONF[:arp_cache_poisoning]
<
---
>
68c65
<
---
>
110,116d106
< def allow_vip
< if @nic[:alias_ip] != nil
< ip_array = @nic[:alias_ip].split(",")
< ip_array.each { |ip2|
add_flow("in_port=#{port},arp,dl_src=#{@nic[:mac]},nw_src=#{ip2}",:normal,46000)
}
< end
< end
<
121c111
<
---
>
$ diff OpenvSwitch.rb OpenvSwitch-bkp.rb
38c38
<
---
>
53,56c53
<
< # Allow VIP (aliases), if ARP Cache is ON
< allow_vip if CONF[:arp_cache_poisoning]
<
---
>
68c65
<
---
>
110,116d106
< def allow_vip
< if @nic[:alias_ip] != nil
< ip_array = @nic[:alias_ip].split(",")
< ip_array.each { |ip2|
add_flow("in_port=#{port},arp,dl_src=#{@nic[:mac]},nw_src=#{ip2}",:normal,46000)
}
< end
< end
<
121c111
<
---
>
--
Thank you,
Dmitri Chebotarov
VCL Sys Eng, Engineering & Architectural Support, TSD - Ent Servers & Messaging
223 Aquia Building, Ffx, MSN: 1B5
Phone: (703) 993-6175 | Fax: (703) 993-3404
> On Jan 7, 2015, at 12:52 , Daniel Dehennin <daniel.dehen...@baby-gnu.org>
> wrote:
>
> Dmitri Chebotarov <dcheb...@gmu.edu> writes:
>
>> Hi,
>
> Hello,
>
>> Does anyone run pacemaker/corosync cluster in VMs hosted on Opennebula?
>> Is it possible to share VIP?
>>
>> With ARP cache poisoning feature enabled
>> (http://dev.opennebula.org/issues/2318) it's not possible to add
>> aliased VIPs to the cluster. Unless I manually run 'ovs-ofctl add-flow
>> br0 in_port=305,arp,dl_src=<MAC>,nw_src=<VIP>...' on the host.
>>
>> The ARP poisoning block can be globally disabled in
>> /var/lib/one/remotes/vnm/OpenNebulaNetwork.conf, but is it possible to
>> selectively disable it for a specific VMs only.
>
> There is a feature request to add multiple MAC or IP addresses[1] and
> another one to override configuration per networks[2].
>
> Making it configurable per VM, so configurable by users, may be a little
> risky.
>
> I prefer the solution of sharing reserved addresses.
>
> Regards.
>
> Footnotes:
>
> [1] http://dev.opennebula.org/issues/2348
>
> [2] http://dev.opennebula.org/issues/3387
>
> --
> Daniel Dehennin
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