[2024.1] Enable customize in tobiko-neutron job

[1] updated default image config to use already customized
image, but since 2024.1 we have image overrides we need to
add customize params.

[1] https://review.opendev.org/c/x/tobiko/+/967361

Closes-Bug: #2136143
Change-Id: Ie4f6a2d321fd7f4798a5580610874c01138d39f4

zuul.d/devstack-tobiko-neutron.yaml

@@ -53,6 +53,25 @@
       download_images_override:
         advanced_vm:
           url: "https://archives.fedoraproject.org/pub/archive/fedora/linux/releases/40/Cloud/x86_64/images/Fedora-Cloud-Base-Generic.x86_64-40-1.14.qcow2"
+          customized: false
+          copy_in_files:
+            - nginx_id.conf
+            - iperf3-server.service
+            - config
+          # vlan101 is created on top of both eth0 and ens3 because depending on the computes OS, VM interface name changes
+          # nmcli will create two connections with same name and different UUIDs and only one of them will become active: the one that finds an existing parent NIC
+          customize_command_pattern: >
+            LIBGUESTFS_BACKEND=direct virt-customize -a $TMPPATH
+            --copy-in /tmp/config:/etc/selinux
+            --firstboot-command 'sh -c "nmcli connection add type vlan con-name vlan101 ifname vlan101 vlan.parent eth0 vlan.id 101 ipv6.addr-gen-mode default-or-eui64;
+            nmcli connection add type vlan con-name vlan101 ifname vlan101 vlan.parent ens3 vlan.id 101 ipv6.addr-gen-mode default-or-eui64"'
+            --install iperf3,iputils,nmap,nmap-ncat,nginx
+            --copy-in /tmp/nginx_id.conf:/etc/nginx/conf.d
+            --run-command 'systemctl enable nginx'
+            --copy-in /tmp/iperf3-server.service:/etc/systemd/system
+            --run-command 'systemctl enable iperf3-server'
+            --root-password password:tobiko
+            --selinux-relabel
     irrelevant-files: *FAULTS_IRRELEVANT_FILES
 
 - job: