Agent-based/ZTP on virtual infrastructure

POC on OCP v4.1X.Z with complex network setup

Network

Experiments

Dual stack / Single stack (static, DHCPv4, IPv6 SLAAC, DHCPv6)
W/o proxy for the connected installation
RoutingViaHost (=local gateway) (instead of default shared gateway)
Network tuning e.g MTU 9000k, bond on the primary interface, VLANs on top of bond
Secondary networks
More than one Gateway setup (VRRP)
Operators Metallb, NMState
MNO with ZTP (spokes)
SNO with Agent-based & ACM on top (hub)

Run me

ssh root@lab0
dnf -y install libvirt libvirt-daemon-driver-qemu qemu-kvm jq conntrack tcpdump bind-utils wireguard-tools
systemctl enable --now libvirtd
# https://www.howtogeek.com/devops/how-and-why-to-use-a-remote-docker-host/
systemctl disable firewalld && systemctl stop firewalld
hostnamectl set-hostname lab0

echo ip_tables > /etc/modules-load.d/ip_tables.conf
curl https://raw.githubusercontent.com/karmab/kcli/main/install.sh | sudo bash
kcli create pool -p /var/lib/libvirt/images default

git clone https://github.com/karampok/telco-ocp-lab.git
cd telco-ocp-lab
#scp ~/.pull-secret.json ~/.id-rsa.pub root@lab0:/root/telco-ocp-lab
grep -E '\s{10,}' .github/workflows/ztp-compact.yaml | sed 's/^          //'

Notes

# in ci runner
dnf install  podman-2:4.6.0-3.el9 #if not DNS fails
#disable ipv6
# nmcli connection modify enp1s0 ipv6.method "disabled"
# cat /proc/sys/net/ipv6/conf/enp1s0/disable_ipv6