[pve-devel] [PATCH qemu-server 0/7] RFC: sdn: add ipam support

Alexandre Derumier aderumier at odiso.com
Thu Jun 24 15:34:18 CEST 2021


This is an RFC to implement ipam support on qemu-server.

This don't change the cloud-init current working.

As I need to manage pending ip registration configuration, to follow the pending netX interfaces.

I have added ip,ip6,gw,gw6 field to netX interfaces options. (same than LXC).

(as current ipconfigX pending, is pending cloudinit generation)

so the workflow is:

--> update netX=...,ip=.... 
   --> ip is registered as pending
         --> hotplug/coldplug succesful
               ---> pending ip replace current conf oldip
                       ---->the ip set in cloudinit pending ipconfigX
                            ------> cloudinit regeneration
                                 ---> ipconfigX is remove from pending

As documentation said than ipconfigX is for cloudinit config,
I think it could be ok.

Some users could use the sdn features without cloudinit(allow some subnets only, and autogenerate firewall ipfilter).

Also, for ipam, I need bridge && mac from the netX, and ip need to follow pending states of the nic.

The main code is the same than the lxc serie, and can be shared in a common module

(I don't have implemented yet snasphot rollback, vm restore, vm destroy,..)

Alexandre Derumier (7):
  add ipam module
  add print_ipconfig
  add ip options to netdescr
  add vmconfig_update_net_ip on device hotplug
  add vmconfig_delete_net_ip on device unplug
  api2: add update ip support
  api2: add revert ip support

 PVE/API2/Qemu.pm        |  21 ++++++
 PVE/QemuServer.pm       |  93 +++++++++++++++++++++++
 PVE/QemuServer/Ipam.pm  | 158 ++++++++++++++++++++++++++++++++++++++++
 PVE/QemuServer/Makefile |   1 +
 4 files changed, 273 insertions(+)
 create mode 100644 PVE/QemuServer/Ipam.pm


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