openQA: rename openvswitch bridge device to avoid conflict

On the new rdu3 worker hosts, br0 already exists and is the main
system 'interface' (it's a bridge on two bonded physical interfaces
connected to different switches, to make networking upgrades
easier). So we can't call our openvswitch bridge 'br0' any more.
Let's try calling it 'openqabr0' and see if anything explodes.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

inventory/group_vars/openqa_tap_workers

@@ -1,10 +1,10 @@
 # firewall rules to allow openQA openvswitch guests to communicate
 # uses interface definition from host vars
-custom_rules: ['-A FORWARD -i br0 -j ACCEPT', '-A FORWARD -m state -i {{ openqa_tap_iface }} -o br0 --state RELATED,ESTABLISHED -j ACCEPT', '-A INPUT -i br0 -j ACCEPT']
+custom_rules: ['-A FORWARD -i openqabr0 -j ACCEPT', '-A FORWARD -m state -i {{ openqa_tap_iface }} -o openqabr0 --state RELATED,ESTABLISHED -j ACCEPT', '-A INPUT -i openqabr0 -j ACCEPT']
 nft_custom_rules:
-  - 'add rule ip filter FORWARD iifname "br0" counter accept'
-  - 'add rule ip filter FORWARD iifname "{{ openqa_tap_iface }}" oifname "br0" ct state related,established counter accept'
-  - 'add rule ip filter INPUT iifname "br0" counter accept'
+  - 'add rule ip filter FORWARD iifname "openqabr0" counter accept'
+  - 'add rule ip filter FORWARD iifname "{{ openqa_tap_iface }}" oifname "openqabr0" ct state related,established counter accept'
+  - 'add rule ip filter INPUT iifname "openqabr0" counter accept'
 # for iptables rules...maybe other stuff in future? both staging
 # and prod workers are in this group
 host_group: openqa-tap-workers

roles/openqa/worker/tasks/tap-setup.yml

@@ -24,23 +24,23 @@
 - name: Create openvswitch bridge
   community.general.nmcli:
     conn_name: ovs-br
-    ifname: br0
+    ifname: openqabr0
     type: ovs-bridge
     state: present
 
 - name: Create openvswitch port for openvswitch bridge
   community.general.nmcli:
     conn_name: ovs-br-port
-    ifname: br0
-    master: br0
+    ifname: openqabr0
+    master: openqabr0
     type: ovs-port
     state: present
 
 - name: Create openvswitch interface for openvswitch bridge
   community.general.nmcli:
     conn_name: ovs-br-if
-    ifname: br0
-    master: br0
+    ifname: openqabr0
+    master: openqabr0
     ip4: '172.16.2.2/15'
     type: ovs-interface
     state: present
@@ -49,7 +49,7 @@
   community.general.nmcli:
     conn_name: ovs-tap{{ item }}-port
     ifname: tap{{ item }}
-    master: br0
+    master: openqabr0
     type: ovs-port
     state: present
   with_sequence: start=0 end={{ openqa_workers | int }}

roles/openqa/worker/templates/ifcfg-tap.j2

@@ -1,6 +1,6 @@
 DEVICETYPE='ovs'
 TYPE='OVSPort'
-OVS_BRIDGE='br0'
+OVS_BRIDGE='openqabr0'
 DEVICE='tap{{ item }}'
 ONBOOT='yes'
 BOOTPROTO='none'