System Architecture

System and kernel optimization specifications configured during automated Packer builds.

Kernel & Network Parameters (/etc/sysctl.d/99-kubernetes-cri.conf)

net.bridge.bridge-nf-call-iptables  = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.ipv4.ip_forward                 = 1
fs.inotify.max_user_watches         = 524288
fs.inotify.max_user_instances       = 8192
vm.max_map_count                    = 262144

Storage & Container Runtime

• XFS Mount Flags: pquota,prjquota,noatime applied in /etc/fstab
• containerd v2: Configured with SystemdCgroup = true
• cgroup v2: Enforced via systemd.unified_cgroup_hierarchy=1