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rgarciargarcia
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add hetzner template
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‎templates/cluster-template-hetzner.rc

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# Kubernetes cluster configuration
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export KUBERNETES_VERSION=1.28.8
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export CONTROL_PLANE_MACHINE_COUNT=1
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export WORKER_MACHINE_COUNT=1
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# Hetzner Cloud configuration
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HCLOUD_SECRET_NAME=hetzner
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HCLOUD_CONTROL_PLANE_MACHINE_TYPE=cax11
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HCLOUD_REGION=fsn1
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HCLOUD_SSH_KEY=my-ssh-key
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HCLOUD_WORKER_MACHINE_TYPE=cax11
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# Snap risk level and confinement
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SNAP_CONFINEMENT=classic
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SNAP_RISKLEVEL=stable
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# Upgrade configuration
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export UPGRADE_STRATEGY=SmartUpgrade

‎templates/cluster-template-hetzner.yaml

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apiVersion: cluster.x-k8s.io/v1beta1
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kind: Cluster
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metadata:
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name: ${CLUSTER_NAME}
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spec:
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clusterNetwork:
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pods:
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cidrBlocks:
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- ${CLUSTER_POD_CIDR_BLOCK:=10.0.128.0/17}
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services:
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cidrBlocks:
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- ${CLUSTER_SERVICE_CIDR_BLOCK:=10.0.8.0/21}
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controlPlaneRef:
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apiVersion: controlplane.cluster.x-k8s.io/v1beta1
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kind: MicroK8sControlPlane
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name: ${CLUSTER_NAME}-control-plane
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infrastructureRef:
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: HetznerCluster
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name: ${CLUSTER_NAME}
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---
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: HetznerCluster
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metadata:
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name: ${CLUSTER_NAME}
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spec:
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controlPlaneEndpoint:
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host: ""
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port: 443
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controlPlaneLoadBalancer:
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enabled: true
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region: ${HCLOUD_REGION}
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controlPlaneRegions:
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- ${HCLOUD_REGION}
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hcloudNetwork:
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enabled: true
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cidrBlock: ${HCLOUD_CIDR_BLOCK:=10.0.0.0/16}
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subnetCidrBlock: ${HCLOUD_SUBNET_CIDR_BLOCK:=10.0.0.0/24}
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hcloudPlacementGroups:
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- name: control-plane
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type: spread
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- name: md-0
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type: spread
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hetznerSecretRef:
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key:
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hcloudToken: hcloud
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hetznerRobotPassword: robot-password
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hetznerRobotUser: robot-user
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name: ${HCLOUD_SECRET_NAME:=hetzner}
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sshKeys:
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hcloud:
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- name: ${HCLOUD_SSH_KEY}
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---
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apiVersion: controlplane.cluster.x-k8s.io/v1beta1
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kind: MicroK8sControlPlane
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metadata:
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name: "${CLUSTER_NAME}-control-plane"
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spec:
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controlPlaneConfig:
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initConfiguration:
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addons:
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- dns
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- ingress
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- cert-manager
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- metrics-server
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- cilium
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- metallb
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riskLevel: "${SNAP_RISKLEVEL:=}"
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confinement: "${SNAP_CONFINEMENT:=}"
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clusterConfiguration:
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portCompatibilityRemap: true
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machineTemplate:
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infrastructureTemplate:
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: HCloudMachineTemplate
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name: "${CLUSTER_NAME}-control-plane"
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replicas: ${CONTROL_PLANE_MACHINE_COUNT:=1}
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version: "v${KUBERNETES_VERSION}"
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upgradeStrategy: "${UPGRADE_STRATEGY}"
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---
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: HCloudMachineTemplate
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metadata:
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name: ${CLUSTER_NAME}-control-plane
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spec:
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template:
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spec:
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imageName: ubuntu-22.04
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placementGroupName: control-plane
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type: ${HCLOUD_CONTROL_PLANE_MACHINE_TYPE}
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---
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apiVersion: cluster.x-k8s.io/v1beta1
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kind: MachineDeployment
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metadata:
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labels:
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nodepool: ${CLUSTER_NAME}-md-0
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name: ${CLUSTER_NAME}-md-0
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spec:
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clusterName: ${CLUSTER_NAME}
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replicas: ${WORKER_MACHINE_COUNT}
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selector:
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matchLabels: null
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template:
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metadata:
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labels:
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nodepool: ${CLUSTER_NAME}-md-0
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spec:
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bootstrap:
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configRef:
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name: "${CLUSTER_NAME}-md-0"
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apiVersion: bootstrap.cluster.x-k8s.io/v1beta1
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kind: MicroK8sConfigTemplate
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clusterName: ${CLUSTER_NAME}
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failureDomain: ${HCLOUD_REGION}
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infrastructureRef:
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: HCloudMachineTemplate
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name: ${CLUSTER_NAME}-md-0
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version: ${KUBERNETES_VERSION}
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---
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: HCloudMachineTemplate
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metadata:
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name: ${CLUSTER_NAME}-md-0
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spec:
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template:
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spec:
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imageName: ubuntu-22.04
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placementGroupName: md-0
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type: ${HCLOUD_WORKER_MACHINE_TYPE}
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---
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apiVersion: bootstrap.cluster.x-k8s.io/v1beta1
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kind: MicroK8sConfigTemplate
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metadata:
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name: "${CLUSTER_NAME}-md-0"
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spec:
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template:
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spec:
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clusterConfiguration:
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portCompatibilityRemap: true
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initConfiguration:
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riskLevel: "${SNAP_RISKLEVEL:=}"
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confinement: "${SNAP_CONFINEMENT:=}"
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---
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apiVersion: cluster.x-k8s.io/v1beta1
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kind: MachineHealthCheck
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metadata:
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name: ${CLUSTER_NAME}-control-plane-unhealthy-5m
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spec:
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clusterName: ${CLUSTER_NAME}
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maxUnhealthy: 100%
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nodeStartupTimeout: 15m
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remediationTemplate:
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: HCloudRemediationTemplate
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name: control-plane-remediation-request
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selector:
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matchLabels:
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cluster.x-k8s.io/control-plane: ""
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unhealthyConditions:
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- status: Unknown
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timeout: 180s
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type: Ready
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- status: "False"
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timeout: 180s
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type: Ready
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---
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apiVersion: cluster.x-k8s.io/v1beta1
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kind: MachineHealthCheck
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metadata:
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name: ${CLUSTER_NAME}-md-0-unhealthy-5m
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spec:
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clusterName: ${CLUSTER_NAME}
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maxUnhealthy: 100%
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nodeStartupTimeout: 10m
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remediationTemplate:
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: HCloudRemediationTemplate
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name: worker-remediation-request
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selector:
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matchLabels:
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nodepool: ${CLUSTER_NAME}-md-0
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unhealthyConditions:
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- status: Unknown
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timeout: 180s
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type: Ready
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- status: "False"
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timeout: 180s
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type: Ready
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---
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: HCloudRemediationTemplate
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metadata:
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name: control-plane-remediation-request
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spec:
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template:
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spec:
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strategy:
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retryLimit: 1
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timeout: 180s
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type: Reboot
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---
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apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
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kind: HCloudRemediationTemplate
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metadata:
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name: worker-remediation-request
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spec:
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template:
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spec:
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strategy:
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retryLimit: 1
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timeout: 180s
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type: Reboot

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