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Bootstrap HA k3s server on 3 Harvester VM nodes

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Danny Bessems
2026-04-10 18:49:21 +10:00
commit 99ea6471b1
4 changed files with 532 additions and 0 deletions
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manifests/harvester-vms.yaml Normal file
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apiVersion: kubevirt.io/v1
kind: VirtualMachine
metadata:
name: kairos-node-1
namespace: default
annotations:
harvesterhci.io/volumeClaimTemplates: |-
[
{
"metadata": {
"name": "kairos-node-1-disk-0",
"annotations": {
"harvesterhci.io/imageId": "default/image-s9dln",
"harvesterhci.io/delete-after-vm-termination": "true"
}
},
"spec": {
"accessModes": ["ReadWriteMany"],
"resources": {"requests": {"storage": "1Gi"}},
"volumeMode": "Block",
"storageClassName": "longhorn-image-s9dln"
}
},
{
"metadata": {
"name": "kairos-node-1-disk-1",
"annotations": {
"harvesterhci.io/delete-after-vm-termination": "true"
}
},
"spec": {
"accessModes": ["ReadWriteMany"],
"resources": {"requests": {"storage": "50Gi"}},
"volumeMode": "Block",
"storageClassName": "harvester-longhorn"
}
}
]
harvesterhci.io/vmRunStrategy: RerunOnFailure
labels:
harvesterhci.io/vmName: kairos-node-1
spec:
runStrategy: RerunOnFailure
template:
metadata:
labels:
harvesterhci.io/vmName: kairos-node-1
spec:
domain:
cpu: {cores: 2}
resources:
limits:
memory: 4Gi
requests:
memory: 4Gi
machine: {type: q35}
features:
acpi: {enabled: true}
devices:
inputs:
- bus: usb
name: tablet
type: tablet
interfaces:
- model: virtio
name: default
bridge: {}
disks:
- name: disk-0
cdrom: {bus: sata}
bootOrder: 2
- name: disk-1
disk: {bus: virtio}
bootOrder: 1
- name: cloudinitdisk
disk: {bus: virtio}
networks:
- name: default
multus:
networkName: default/vmn-lan
volumes:
- name: disk-0
persistentVolumeClaim:
claimName: kairos-node-1-disk-0
- name: disk-1
persistentVolumeClaim:
claimName: kairos-node-1-disk-1
- name: cloudinitdisk
cloudInitNoCloud:
secretRef: {name: kairos-cloud-config}
---
apiVersion: kubevirt.io/v1
kind: VirtualMachine
metadata:
name: kairos-node-2
namespace: default
annotations:
harvesterhci.io/volumeClaimTemplates: |-
[
{
"metadata": {
"name": "kairos-node-2-disk-0",
"annotations": {"harvesterhci.io/imageId": "default/image-s9dln"}
},
"spec": {
"accessModes": ["ReadWriteMany"],
"resources": {"requests": {"storage": "1Gi"}},
"volumeMode": "Block",
"storageClassName": "longhorn-image-s9dln"
}
},
{
"metadata": {"name": "kairos-node-2-disk-1"},
"spec": {
"accessModes": ["ReadWriteMany"],
"resources": {"requests": {"storage": "50Gi"}},
"volumeMode": "Block",
"storageClassName": "harvester-longhorn"
}
}
]
harvesterhci.io/vmRunStrategy: RerunOnFailure
labels:
harvesterhci.io/vmName: kairos-node-2
spec:
runStrategy: RerunOnFailure
template:
metadata:
labels:
harvesterhci.io/vmName: kairos-node-2
spec:
domain:
cpu: {cores: 2}
resources:
limits:
memory: 4Gi
requests:
memory: 4Gi
machine: {type: q35}
features:
acpi: {enabled: true}
devices:
inputs:
- bus: usb
name: tablet
type: tablet
interfaces:
- model: virtio
name: default
bridge: {}
disks:
- name: disk-0
cdrom: {bus: sata}
bootOrder: 2
- name: disk-1
disk: {bus: virtio}
bootOrder: 1
- name: cloudinitdisk
disk: {bus: virtio}
networks:
- name: default
multus:
networkName: default/vmn-lan
volumes:
- name: disk-0
persistentVolumeClaim:
claimName: kairos-node-2-disk-0
- name: disk-1
persistentVolumeClaim:
claimName: kairos-node-2-disk-1
- name: cloudinitdisk
cloudInitNoCloud:
secretRef: {name: kairos-cloud-config}
---
apiVersion: kubevirt.io/v1
kind: VirtualMachine
metadata:
name: kairos-node-3
namespace: default
annotations:
harvesterhci.io/volumeClaimTemplates: |-
[
{
"metadata": {
"name": "kairos-node-3-disk-0",
"annotations": {"harvesterhci.io/imageId": "default/image-s9dln"}
},
"spec": {
"accessModes": ["ReadWriteMany"],
"resources": {"requests": {"storage": "1Gi"}},
"volumeMode": "Block",
"storageClassName": "longhorn-image-s9dln"
}
},
{
"metadata": {"name": "kairos-node-3-disk-1"},
"spec": {
"accessModes": ["ReadWriteMany"],
"resources": {"requests": {"storage": "50Gi"}},
"volumeMode": "Block",
"storageClassName": "harvester-longhorn"
}
}
]
harvesterhci.io/vmRunStrategy: RerunOnFailure
labels:
harvesterhci.io/vmName: kairos-node-3
spec:
runStrategy: RerunOnFailure
template:
metadata:
labels:
harvesterhci.io/vmName: kairos-node-3
spec:
domain:
cpu: {cores: 2}
resources:
limits:
memory: 4Gi
requests:
memory: 4Gi
machine: {type: q35}
features:
acpi: {enabled: true}
devices:
inputs:
- bus: usb
name: tablet
type: tablet
interfaces:
- model: virtio
name: default
bridge: {}
disks:
- name: disk-0
cdrom: {bus: sata}
bootOrder: 2
- name: disk-1
disk: {bus: virtio}
bootOrder: 1
- name: cloudinitdisk
disk: {bus: virtio}
networks:
- name: default
multus:
networkName: default/vmn-lan
volumes:
- name: disk-0
persistentVolumeClaim:
claimName: kairos-node-3-disk-0
- name: disk-1
persistentVolumeClaim:
claimName: kairos-node-3-disk-1
- name: cloudinitdisk
cloudInitNoCloud:
secretRef: {name: kairos-cloud-config}