Daan created GSOC-289:
-------------------------
Summary: Autodetect IPs used inside the VM on L2 networks
Key: GSOC-289
URL: https://issues.apache.org/jira/browse/GSOC-289
Project: Comdev GSOC
Issue Type: Improvement
Reporter: Daan
With regards to IP info reporting, Cloudstack relies entirely on it's DHCP data
bases and so on. When this is not available (L2 networks etc) no IP information
is shown for a given VM.
I propose we introduce a mechanism for "IP autodetection" and try to discover
the IPs used inside the machines by means of querying the hypervisors. For
example with KVM/libvirt we can simply do something like this:
{{root@fedora35 ~]# virsh domifaddr win2k22 --source agent
Name MAC address Protocol Address
-------------------------------------------------------------------------------
Ethernet 52:54:00:7b:23:6a ipv4 192.168.0.68/24
Loopback Pseudo-Interface 1 ipv6 ::1/128
- - ipv4 127.0.0.1/8}}
The above command queries the qemu-guest-agent inside the Windows VM. The VM
needs to have the qemu-guest-agent installed and running as well as the virtio
serial drivers (easily done in this case with
[virtio-win-guest-tools.exe|https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-virtio/virtio-win-0.1.215-2/virtio-win-guest-tools.exe]
) as well as a guest-agent socket channel defined in libvirt.
ref. cloudstack issue: https://github.com/apache/cloudstack/issues/7142
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