feat: Bootstrap Talos k8s cluster

This commit is contained in:
Peter 2025-10-28 22:46:17 +01:00
parent 9ca0f7c431
commit 7d3c60325f
Signed by: Peter
SSH key fingerprint: SHA256:B5tYaxBExaDm74r1px9iVeZ6F/ZDiyiy9SbBqfZYrvg
7 changed files with 336 additions and 0 deletions

5
.gitignore vendored
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@ -37,3 +37,8 @@ override.tf.json
.terraformrc .terraformrc
terraform.rc terraform.rc
# ---> End Terraform
.idea/
.vscode/
.DS_Store

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@ -140,3 +140,41 @@ module "workers" {
worker_addresses = local.worker_addresses worker_addresses = local.worker_addresses
} }
} }
module "talos-bootstrap" {
depends_on = [
module.controlplanes,
module.workers
]
source = "./modules/talos-bootstrap"
node_config = {
ipv4_gateway = local.ipv4_gateway
talos_version = local.talos_version
cilium_version = local.cilium_version
cluster_name = local.cluster_name
kubernetes_version = local.kubernetes_version
cluster_endpoint = local.cluster_endpoint_ip
proxmox_node = local.proxmox_node
controlplane_addresses = local.controlplane_addresses
worker_addresses = local.worker_addresses
}
talos_nodes = concat(
[
for node in local.controlplanes.nodes : {
name = format("k8s-wheatley-%s", node.name)
type = "controlplane"
ipv4_address = node.ip_address
}
],
[
for node in local.workers.nodes : {
name = format("k8s-wheatley-%s", node.name)
type = "worker"
ipv4_address = node.ip_address
}
]
)
}

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@ -0,0 +1,95 @@
terraform {
required_providers {
talos = {
source = "siderolabs/talos"
version = "0.9.0"
}
}
}
locals {
cluster_endpoint_full = format("https://%s:6443", var.node_config.cluster_endpoint)
}
resource "talos_machine_secrets" "machine_secrets" {}
data "talos_machine_configuration" "machineconfig-cp" {
cluster_name = var.node_config.cluster_name
machine_type = "controlplane"
cluster_endpoint = local.cluster_endpoint_full
kubernetes_version = var.node_config.kubernetes_version
talos_version = talos_machine_secrets.machine_secrets.talos_version
machine_secrets = talos_machine_secrets.machine_secrets.machine_secrets
}
data "talos_machine_configuration" "machineconfig-worker" {
cluster_name = var.node_config.cluster_name
machine_type = "worker"
cluster_endpoint = local.cluster_endpoint_full
kubernetes_version = var.node_config.kubernetes_version
talos_version = talos_machine_secrets.machine_secrets.talos_version
machine_secrets = talos_machine_secrets.machine_secrets.machine_secrets
}
data "talos_client_configuration" "talosconfig" {
cluster_name = var.node_config.cluster_name
endpoints = var.node_config.controlplane_addresses
client_configuration = talos_machine_secrets.machine_secrets.client_configuration
nodes = concat(var.node_config.controlplane_addresses, var.node_config.worker_addresses)
}
resource "talos_machine_configuration_apply" "config_apply_cp" {
for_each = {
for talos_node in var.talos_nodes : talos_node.name => talos_node
if talos_node.type == "controlplane"
}
client_configuration = talos_machine_secrets.machine_secrets.client_configuration
machine_configuration_input = data.talos_machine_configuration.machineconfig-cp.machine_configuration
endpoint = each.value.ipv4_address
node = each.value.ipv4_address
config_patches = [
templatefile("${path.module}/templates/machineconfig-cp.yaml.tmpl", {
hostname = each.value.name
cluster_name = var.node_config.cluster_name
vip_address = var.node_config.cluster_endpoint
node_name = format("%s.wheatley.in", var.node_config.proxmox_node)
machine_type = each.value.type
talos_version = var.node_config.talos_version
cilium_version = var.node_config.cilium_version
cilium_install_file = file("${path.module}/templates/cilium-install.yaml.tmpl")
})
]
}
resource "talos_machine_configuration_apply" "config_apply_worker" {
for_each = {
for talos_node in var.talos_nodes : talos_node.name => talos_node
if talos_node.type == "worker"
}
client_configuration = talos_machine_secrets.machine_secrets.client_configuration
machine_configuration_input = data.talos_machine_configuration.machineconfig-worker.machine_configuration
endpoint = each.value.ipv4_address
node = each.value.ipv4_address
config_patches = [
templatefile("${path.module}/templates/machineconfig-worker.yaml.tmpl", {
hostname = each.value.name
cluster_name = var.node_config.cluster_name
vip_address = var.node_config.cluster_endpoint
node_name = format("%s.wheatley.in", var.node_config.proxmox_node)
machine_type = each.value.type
talos_version = var.node_config.talos_version
cilium_version = var.node_config.cilium_version
cilium_install_file = file("${path.module}/templates/cilium-install.yaml.tmpl")
})
]
}
resource "talos_machine_bootstrap" "talos_machine_bootstrap" {
depends_on = [
talos_machine_configuration_apply.config_apply_cp,
talos_machine_configuration_apply.config_apply_worker
]
client_configuration = talos_machine_secrets.machine_secrets.client_configuration
node = var.talos_nodes[0].ipv4_address
}

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@ -0,0 +1,96 @@
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: cilium-install
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cluster-admin
subjects:
- kind: ServiceAccount
name: cilium-install
namespace: kube-system
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: cilium-install
namespace: kube-system
---
apiVersion: batch/v1
kind: Job
metadata:
name: cilium-install
namespace: kube-system
spec:
backoffLimit: 10
template:
metadata:
labels:
app: cilium-install
spec:
restartPolicy: OnFailure
tolerations:
- operator: Exists
- effect: NoSchedule
operator: Exists
- effect: NoExecute
operator: Exists
- effect: PreferNoSchedule
operator: Exists
- key: node-role.kubernetes.io/control-plane
operator: Exists
effect: NoSchedule
- key: node-role.kubernetes.io/control-plane
operator: Exists
effect: NoExecute
- key: node-role.kubernetes.io/control-plane
operator: Exists
effect: PreferNoSchedule
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: node-role.kubernetes.io/control-plane
operator: Exists
serviceAccount: cilium-install
serviceAccountName: cilium-install
hostNetwork: true
containers:
- name: cilium-install
image: quay.io/cilium/cilium-cli:latest
env:
- name: KUBERNETES_SERVICE_HOST
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: status.podIP
- name: KUBERNETES_SERVICE_PORT
value: "6443"
command:
- cilium
- install
- --set
- ipam.mode=kubernetes
- --set
- kubeProxyReplacement=true
- --set
- securityContext.capabilities.ciliumAgent={CHOWN,KILL,NET_ADMIN,NET_RAW,IPC_LOCK,SYS_ADMIN,SYS_RESOURCE,DAC_OVERRIDE,FOWNER,SETGID,SETUID}
- --set
- securityContext.capabilities.cleanCiliumState={NET_ADMIN,SYS_ADMIN,SYS_RESOURCE}
- --set
- cgroup.autoMount.enabled=false
- --set
- cgroup.hostRoot=/sys/fs/cgroup
- --set
- k8sServiceHost=10.13.38.11
- --set
- k8sServicePort=6443
- --set
- gatewayAPI.enabled=true
- --set
- gatewayAPI.enableAlpn=true
- --set
- gatewayAPI.enableAppProtocol=true

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@ -0,0 +1,43 @@
debug: false
machine:
type: ${machine_type}
install:
disk: /dev/vda
image: factory.talos.dev/nocloud-installer-secureboot/ce4c980550dd2ab1b17bbf2b08801c7eb59418eafe8f279833297925d67c7515:v${talos_version}
network:
hostname: ${hostname}
nameservers:
- 10.13.37.2
%{ if machine_type == "controlplane" }
interfaces:
- interface: eth0
dhcp: false
vip:
ip: ${vip_address}
%{ endif }
kubelet:
extraArgs:
pod-max-pids: 1000
extraConfig:
imageGCHighThresholdPercent: 75
imageGCLowThresholdPercent: 70
nodeLabels:
topology.kubernetes.io/region: ${cluster_name}
topology.kubernetes.io/zone: ${node_name}
cluster:
apiServer:
auditPolicy:
apiVersion: audit.k8s.io/v1
kind: Policy
rules:
- level: Metadata
network:
cni:
name: none
proxy:
disabled: true
inlineManifests:
- name: cilium-bootstrap
contents: |
${indent(6, cilium_install_file)}

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@ -0,0 +1,36 @@
debug: false
machine:
type: ${machine_type}
install:
disk: /dev/vda
image: factory.talos.dev/nocloud-installer-secureboot/ce4c980550dd2ab1b17bbf2b08801c7eb59418eafe8f279833297925d67c7515:v${talos_version}
network:
hostname: ${hostname}
nameservers:
- 10.13.37.2
kubelet:
extraArgs:
pod-max-pids: 1000
extraConfig:
imageGCHighThresholdPercent: 75
imageGCLowThresholdPercent: 70
nodeLabels:
topology.kubernetes.io/region: ${cluster_name}
topology.kubernetes.io/zone: ${node_name}
cluster:
apiServer:
auditPolicy:
apiVersion: audit.k8s.io/v1
kind: Policy
rules:
- level: Metadata
network:
cni:
name: none
proxy:
disabled: true
inlineManifests:
- name: cilium-bootstrap
contents: |
${indent(6, cilium_install_file)}

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@ -0,0 +1,23 @@
variable "node_config" {
description = "Talos node configuration"
type = object({
ipv4_gateway = string
talos_version = string
cilium_version = string
cluster_name = string
kubernetes_version = string
cluster_endpoint = string
proxmox_node = string
controlplane_addresses = list(string)
worker_addresses = list(string)
})
}
variable "talos_nodes" {
description = "List of Talos nodes to bootstrap"
type = list(object({
name = string
type = string
ipv4_address = string
}))
}