feature: scripts for tap worker configuration

[tcooper]

@AlanMarshall as promised here are the scripts I used to setup tap workers in openqa.

[AlanMarshall]

Tested on bare metal clean installed f42 server:
In OpenQA-Fedora-Installation ran:
install-openqa.sh then install-openqa-post-rocky.sh
to install openvswitch and then tested single vm:

openqa-cli api -X POST isos ISO=Rocky-9.6-x86_64-dvd.iso ARCH=x86_64 DISTRI=rocky FLAVOR=dvd-iso VERSION=9.6 CURRREL=9 LOCATION=https://dl.rockylinux.org/pub/rocky/9.6 DNF_CONTENTDIR=pub/rocky DNF_RELEASEVER=9.6 BUILD=-"$(date +%Y%m%d.%H%M%S).0"-dvd-iso-9.6 TEST=install_default_upload

Result: Pass
then ran
install-openqa-multi-machine-support.sh
with br0 instead of br1 (just for the hell of it)
and 4 instances instead of 18
then after configuring:

/etc/openqa/client.conf.d/client.conf
/etc/openqa/client.conf.d/openqa.ini
/etc/openqa/client.conf.d/workers.ini

was able to run:

... TEST=server_role_deploy_domain_controller,realmd_join_sssd
... TEST=support_server,install_updates_nfs,install_repository_nfs_graphical

Result: openvswitch comms within vlan ok but fail when trying to access internet.

Comment: The port tap numbers do not look correct
and there is an error in firewall config for non-existent isotovideo service
but otherwise looks ok:

ovs-vsctl show
ac15a4aa-0730-4d97-8ccc-0d962ae023aa
    Bridge br0
        Port tap68
            Interface tap68
                type: system
        Port tap1
            Interface tap1
                type: system
        Port tap66
            Interface tap66
                type: system
        Port tap65
            Interface tap65
                type: system
        Port tap4
            Interface tap4
                type: system
        Port tap132
            Interface tap132
                type: system
        Port tap64
            Interface tap64
                type: system
        Port tap129
            Interface tap129
                type: system
        Port tap128
            Interface tap128
                type: system
        Port tap130
            Interface tap130
                type: system
        Port br0
            Interface br0
                type: internal
        Port tap0
            Interface tap0
                type: system
        Port tap67
            Interface tap67
                type: system
        Port tap131
            Interface tap131
                type: system
        Port tap3
            Interface tap3
                type: system
        Port tap2
            Interface tap2
                type: system
    ovs_version: "3.4.1-1.fc42"
ip a
...
4: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether d6:d8:d6:3f:15:63 brd ff:ff:ff:ff:ff:ff
7: tap68: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 2a:7b:14:15:d1:32 brd ff:ff:ff:ff:ff:ff
8: tap64: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 42:65:c5:37:b5:44 brd ff:ff:ff:ff:ff:ff
12: tap128: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 2a:53:ac:50:73:bc brd ff:ff:ff:ff:ff:ff
16: tap67: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether f6:23:31:06:18:0d brd ff:ff:ff:ff:ff:ff
19: tap129: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether b6:1f:d0:ed:f9:9a brd ff:ff:ff:ff:ff:ff
21: tap132: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 66:b7:db:04:c7:c2 brd ff:ff:ff:ff:ff:ff
22: tap0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 0e:21:41:12:7f:23 brd ff:ff:ff:ff:ff:ff
23: tap4: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 8e:85:35:cc:52:c6 brd ff:ff:ff:ff:ff:ff
24: tap2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 86:b5:e1:13:34:26 brd ff:ff:ff:ff:ff:ff
25: tap3: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 6a:80:18:13:cb:ea brd ff:ff:ff:ff:ff:ff
26: tap66: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 2a:8a:d7:bf:6a:1e brd ff:ff:ff:ff:ff:ff
27: tap131: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 1e:3b:02:6e:8a:7e brd ff:ff:ff:ff:ff:ff
28: tap130: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 3a:7a:1a:a4:1e:5b brd ff:ff:ff:ff:ff:ff
29: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1460 qdisc noqueue state UNKNOWN group default qlen 1000
    link/ether be:98:22:38:d0:49 brd ff:ff:ff:ff:ff:ff
    inet 172.16.2.2/15 brd 172.17.255.255 scope global noprefixroute br0
       valid_lft forever preferred_lft forever
    inet6 fe80::5182:fea4:64d7:1f57/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
30: tap65: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether ce:ac:19:61:78:f0 brd ff:ff:ff:ff:ff:ff
31: tap1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel master ovs-system state DOWN group default qlen 1000
    link/ether 4a:bd:c3:61:d9:d0 brd ff:ff:ff:ff:ff:ff

Still to try out remove-openqa-multi-machine-support.sh will advise.

[AlanMarshall]

Remove script tested: Ran remove-openqa-multi-machine-support.sh
Result: Success
Script ran through successfully including:

Package                     Arch     Version                       Repository          Size
Removing:
 NetworkManager-ovs         x86_64   1:1.52.0-1.fc42               fedora         103.7 KiB
 openvswitch                x86_64   3.4.1-1.fc42                  fedora           5.5 MiB
 os-autoinst-openvswitch    x86_64   5^20250522gita855b3a-1.fc42   updates         10.5 KiB
Removing unused dependencies:
 dpdk                       x86_64   2:24.11.1-3.fc42              fedora          29.1 MiB
 libatomic                  x86_64   15.1.1-2.fc42                 updates         36.7 KiB
 openvswitch-dpdk           x86_64   3.4.1-1.fc42                  fedora           3.8 MiB

All previously installed items gone.

[AlanMarshall]

Approved with comment above on tap numbers

A reinstall using br1 and 18 instances untouched gave tap0 to tap17 correctly configured and working correctly but 39 additional tap ports also configured.
isotovideo service error in firewall config remains.