When recreating (delete + launch) an instance with a static ip, the lease is not deleted in /var/snap/lxd/common/lxd/networks/$NETWORK/dnsmasq.* and dnsmasq is not refreshed/restarted.
In old issues I see it’s a recurring problem. And it mentions shortcomings with dnsmasq as an inhibitor hindering a smooth automatic flow from what I understand.
Questions
Is it expected to be resolved in --channel=latest/stable (5.13,5.14) ?
Is the resolve still to manually/script stop, clean dnsmasq.* files and restart lxd ?
What is the current best practice to perform the operation ?
tomp
May 30, 2023, 1:45pm
2
Hi,
Please could you show me a reproducer of this issue?
I’m not able to reproduce using the latest snap:
apt install snapd -y; snap install lxd --edge
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
snapd is already the newest version (2.58+22.04).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
snap "lxd" is already installed, see 'snap help refresh'
root@v1:~# lxd init --auto
root@v1:~# lxc network list-leases lxdbr0
To start your first container, try: lxc launch ubuntu:22.04
Or for a virtual machine: lxc launch ubuntu:22.04 --vm
+-----------+-------------+-----------------------+---------+
| HOSTNAME | MAC ADDRESS | IP ADDRESS | TYPE |
+-----------+-------------+-----------------------+---------+
| lxdbr0.gw | | 10.117.115.1 | GATEWAY |
+-----------+-------------+-----------------------+---------+
| lxdbr0.gw | | fd42:a7f5:7ba3:468::1 | GATEWAY |
+-----------+-------------+-----------------------+---------+
root@v1:~# lxc launch images:ubuntu/jammy c1
Creating c1
Starting c1
root@v1:~# lxc network list-leases lxdbr0
+-----------+-------------------+---------------------------------------+---------+
| HOSTNAME | MAC ADDRESS | IP ADDRESS | TYPE |
+-----------+-------------------+---------------------------------------+---------+
| c1 | 00:16:3e:d7:8d:34 | 10.117.115.237 | DYNAMIC |
+-----------+-------------------+---------------------------------------+---------+
| c1 | 00:16:3e:d7:8d:34 | fd42:a7f5:7ba3:468:216:3eff:fed7:8d34 | DYNAMIC |
+-----------+-------------------+---------------------------------------+---------+
| lxdbr0.gw | | 10.117.115.1 | GATEWAY |
+-----------+-------------------+---------------------------------------+---------+
| lxdbr0.gw | | fd42:a7f5:7ba3:468::1 | GATEWAY |
+-----------+-------------------+---------------------------------------+---------+
root@v1:~# lxc delete -f c1
root@v1:~# lxc network list-leases lxdbr0
+-----------+-------------+-----------------------+---------+
| HOSTNAME | MAC ADDRESS | IP ADDRESS | TYPE |
+-----------+-------------+-----------------------+---------+
| lxdbr0.gw | | 10.117.115.1 | GATEWAY |
+-----------+-------------+-----------------------+---------+
| lxdbr0.gw | | fd42:a7f5:7ba3:468::1 | GATEWAY |
+-----------+-------------+-----------------------+---------+
root@v1:~# lxc launch images:ubuntu/jammy c1
Creating c1
Starting c1
root@v1:~# lxc network list-leases lxdbr0
+-----------+-------------------+---------------------------------------+---------+
| HOSTNAME | MAC ADDRESS | IP ADDRESS | TYPE |
+-----------+-------------------+---------------------------------------+---------+
| c1 | 00:16:3e:ef:fc:12 | 10.117.115.119 | DYNAMIC |
+-----------+-------------------+---------------------------------------+---------+
| c1 | 00:16:3e:ef:fc:12 | fd42:a7f5:7ba3:468:216:3eff:feef:fc12 | DYNAMIC |
+-----------+-------------------+---------------------------------------+---------+
| lxdbr0.gw | | 10.117.115.1 | GATEWAY |
+-----------+-------------------+---------------------------------------+---------+
| lxdbr0.gw | | fd42:a7f5:7ba3:468::1 | GATEWAY |
+-----------+-------------------+---------------------------------------+---------+
root@v1:~# lxc delete -f c1
root@v1:~# lxc network list-leases lxdbr0
+-----------+-------------+-----------------------+---------+
| HOSTNAME | MAC ADDRESS | IP ADDRESS | TYPE |
+-----------+-------------+-----------------------+---------+
| lxdbr0.gw | | 10.117.115.1 | GATEWAY |
+-----------+-------------+-----------------------+---------+
| lxdbr0.gw | | fd42:a7f5:7ba3:468::1 | GATEWAY |
+-----------+-------------+-----------------------+---------+
tomp
May 30, 2023, 1:46pm
3
How is the problem manifesting itself?