Public bug reported:
We want a way to change a VM port’s network when the VM’s operating
system does not support online removal and addition of devices.
These are the steps to accomplish this:
Given a running VM. We want to change the network of <vm-port-id>. No floating
IP is associated with the VM.
# openstack port set –no-fixed-ip <vm-port-id>
# openstack port set –network-id <new-net-id> <vm-port-id>
# openstack port set –fixed-ip subnet=<new-subnet> <vm-port-id>
Neutron-server succeeds with changing the port’s network-id if:
1. The new network belongs to the same project as the original network.
2. The port has no fixed-ip addresses on it.
3. The port’s mac address is unused on the new network.
4. The new network’s MTU is greater than or equal to the old network’s.
Some operating systems may be unable to handle online addition and
deletion of devices. We want a way of changing a VM’s port’s network
that does not rely on the guest operating system supporting these
capabilities.
The change is done by making the port’s network-id attribute to allow
PUT requests. Neutron api server checks whether the 4 criteria are met.
Then it will proceed with updating the port. When the new fixed-ip is
set, the user will have to login to the VM’s console and manually change
the guest OS’s configuration to make use of the new IP address.
** Affects: neutron
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1861529
Title:
[RFE] A port's network should be changable
Status in neutron:
New
Bug description:
We want a way to change a VM port’s network when the VM’s operating
system does not support online removal and addition of devices.
These are the steps to accomplish this:
Given a running VM. We want to change the network of <vm-port-id>. No
floating IP is associated with the VM.
# openstack port set –no-fixed-ip <vm-port-id>
# openstack port set –network-id <new-net-id> <vm-port-id>
# openstack port set –fixed-ip subnet=<new-subnet> <vm-port-id>
Neutron-server succeeds with changing the port’s network-id if:
1. The new network belongs to the same project as the original network.
2. The port has no fixed-ip addresses on it.
3. The port’s mac address is unused on the new network.
4. The new network’s MTU is greater than or equal to the old network’s.
Some operating systems may be unable to handle online addition and
deletion of devices. We want a way of changing a VM’s port’s network
that does not rely on the guest operating system supporting these
capabilities.
The change is done by making the port’s network-id attribute to allow
PUT requests. Neutron api server checks whether the 4 criteria are
met. Then it will proceed with updating the port. When the new fixed-
ip is set, the user will have to login to the VM’s console and
manually change the guest OS’s configuration to make use of the new IP
address.
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/1861529/+subscriptions
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