feat(k8s-2): bare-metal config for saturn #587

Merged
k.renner merged 1 commits from k8s-2-baremetal into master 2026-08-25 20:14:05 +00:00
+87 -19
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# k8s-2 runs Talos directly on saturn's MS-01 hardware. Structurally identical
# to k8s-1.yaml — see that file for the reasoning behind each choice; only the
# serials, MACs and addresses differ. k8s-3 is still a Proxmox VM and keeps the
# VM-era layout until neptune is converted.
machine:
network:
hostname: k8s-2
# Shared control-plane VIP — see k8s-1.yaml for the busPath rationale.
interfaces:
- deviceSelector:
busPath: "0000:06:12.0"
dhcp: true
vip:
ip: 10.2.40.60
# v30iot: link only, no host addressing — see k8s-1.yaml.
- deviceSelector:
busPath: "0000:06:13.0"
dhcp: false
# See k8s-1.yaml for context on the dedicated Ceph cluster network.
- deviceSelector:
driver: i40e
addresses:
- 10.99.0.2/29
mtu: 9000
sysctls:
# v30iot NIC carries no host addressing — see k8s-1.yaml.
# ens19 (VLAN 30, v30iot) is LINK ONLY — no host addressing. It is the
# macvlan parent for the v30iot pod attachments; host addresses on that L2
# make node replies bypass the UDM and break every UDM-DNATed flow.
net.ipv6.conf.ens19.disable_ipv6: "1"
install:
disk: /dev/vda
# Three NVMe drives are visible on bare metal. Select the installer target
# by serial so it cannot land on the OSD drive or on EPHEMERAL, whatever
# order the kernel enumerates them in — Talos and Proxmox do not agree on
# that order.
diskSelector:
serial: 50026B7382DA5F6E
certSANs:
- k8s-2.srv.renner.uno
nodeLabels:
topology.kubernetes.io/zone: saturn
cluster:
allowSchedulingOnControlPlanes: true
---
# EPHEMERAL (/var) goes on the retired Crucial P3, not the system disk. That
# drive is at 81% of its rated endurance and is finished as an OSD, but
# everything EPHEMERAL holds is reconstructible, so it is consumable in this
# role. It also gives /var ~931 GB instead of the 64 GB the VM-era zvol had.
#
# ONLY TAKES EFFECT ON FIRST PROVISION. Talos applies volume configuration
# solely when the volume does not yet exist; applied later it is silently
# ignored and relocating needs a disk wipe and a boot from install media.
#
# Matched by serial deliberately: a broad selector such as
# `disk.transport == 'nvme' && !system_disk` would match the PM983 as well.
apiVersion: v1alpha1
kind: VolumeConfig
name: EPHEMERAL
provisioning:
diskSelector:
match: disk.serial == '2332E86B74BC'
minSize: 50GiB
grow: true
---
# X710 port 0 carries the switch trunk and takes no addressing itself — the
# port's untagged VLAN is not one this node belongs on. Management and v30iot
# both ride it as tagged VLANs.
#
# Addressed by predictable kernel name, not by LinkAliasConfig. Aliases are
# valid VLAN parents, but a selector matching zero links is skipped silently
# and Talos disables default DHCP machine-wide as soon as any new-style network
# document exists — so a silent miss leaves the node with no address on any
# interface. See RUNBOOK-baremetal-conversion.md.
apiVersion: v1alpha1
kind: LinkConfig
name: enp2s0f0np0
up: true
---
# Management, VLAN 40. Node IP, etcd, the API and Ceph's public network.
apiVersion: v1alpha1
kind: VLANConfig
name: mgmt0
vlanID: 40
parent: enp2s0f0np0
up: true
---
apiVersion: v1alpha1
kind: DHCPv4Config
name: mgmt0
---
# Shared control-plane VIP, etcd-elected. Exposed via UniFi DNS as
# k8s.renner.uno.
apiVersion: v1alpha1
kind: Layer2VIPConfig
name: 10.2.40.60
link: mgmt0
---
# Named ens19 on purpose: the four v30iot macvlan NADs hard-code
# `master: ens19`, and k8s-3 still presents the VLAN as a virtio NIC of that
# name. VLANConfig.name is free-form, so one set of NADs serves both.
apiVersion: v1alpha1
kind: VLANConfig
name: ens19
vlanID: 30
parent: enp2s0f0np0
up: true
---
# Dedicated Ceph cluster network on X710 port 1, VLAN 49 / 10.99.0.0/29,
# untagged on the wire. OSD<->OSD replication only. Not routed off its own
# segment and deliberately has no default route.
apiVersion: v1alpha1
kind: LinkConfig
name: enp2s0f1np1
up: true
mtu: 9000
addresses:
- address: 10.99.0.2/29