akrasnov-drv commented on issue #11607:
URL: https://github.com/apache/cloudstack/issues/11607#issuecomment-3280967417
I tried luck with AI, and after analyzing sources it stated:
> The vRouter IP assignment and storage process in shared networks operates
completely independently from the user_ip_address table. There is no automatic
update to the user_ip_address table's allocation status when a vRouter receives
an IP address in a shared network, as these serve different purposes in
CloudStack's IP management system.
After additional clarification requests:
> Based on my research, no, "Saving placeholder nic" for vRouter also does
NOT update the user_ip_address table.
> "Saving placeholder nic" Process:
What it does:
Creates a placeholder NIC entry in the nics table
Assigns an IPv4 address to the vRouter's network interface
Reserves the IP address for the vRouter within the shared network
What it does NOT do:
Does NOT update the user_ip_address table
Does NOT change any allocation status in user_ip_address
And from another AI:
> What actually touches user_ip_address is the IP allocation path in
IpAddressManagerImpl (e.g., when a new IP is needed). In 4.21,
assignAndAllocateIpAddressEntry sets fields like allocatedToAccountId,
associatedWithNetworkId, vpcId, state, and then calls
markPublicIpAsAllocated—that’s the bit that updates the user_ip_address table.

> By contrast, the “placeholder NIC” flow in
DirectPodBasedNetworkGuru#getIp() first tries to reuse an IP by reading
user_ip_address (_ipAddressDao.findByIpAndSourceNetworkId), and only if no IP
is present does it call the allocator. After that it logs “Saving placeholder
nic with ip4 address …” and saves a NIC entry for the VR; this step doesn’t
modify user_ip_address.
Could you verify that anything in vRouter IP assignment updates
user_ip_address (according to AIs nothing)
And thank you for your involvement, very appreciated.
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