Adding the SSH key pushed the inline cloudInitNoCloud.userData over KubeVirt's
2048-byte limit ("userdata exceeds 2048 byte limit. Should use UserDataSecretRef").
Move the cloud-init into apps/vms/unifi/unifi-cloudinit.yaml and wrap it as the
`unifi-cloudinit` Secret via a Kustomize secretGenerator (disableNameSuffixHash
so the VM can reference it by fixed name); VM now uses userDataSecretRef. Content
is non-sensitive (public key + public installer script), so not SOPS-encrypted.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
95 lines
4.7 KiB
YAML
95 lines
4.7 KiB
YAML
---
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# KubeVirt VirtualMachine — the self-hosted UniFi OS Server (UOS) controller.
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#
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# WHY A VM (PM directive): the classic `unifi` .deb is deprecated. UOS is Ubiquiti's current
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# self-host product — a single installer that runs on Ubuntu Server and bundles UniFi OS + the
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# Network application + its OWN embedded datastore inside a Podman container stack. NO separate
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# MongoDB companion is needed.
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#
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# DELIVERY: this VM is NOT on the app "wave" track — it is reconciled by the non-gating `apps-vms`
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# Flux Kustomization (clusters/base/apps-vms.yaml, wait:false) so the slow first-boot image import
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# + UOS install can't stall the app waves. UniFi has no in-cluster dependents.
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#
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# LIVE MIGRATION: evictionStrategy: LiveMigrate + the RWX (longhorn-vm) root disk let the VM
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# drain to another node without downtime (node maintenance / rebalancing).
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#
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# LABELS on the pod template (propagated to the virt-launcher pod):
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# - kubevirt.io/vm: unifi -> Service/CNP selector target
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# - app.kubernetes.io/name: unifi -> convention
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# - egress-class: internet -> Cilium egress steering (default WAN path)
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# - auth-mode: native -> UniFi has its OWN login UI (no Keycloak/oauth2-proxy in
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# front of it). REQUIRED by Kyverno require-auth-mode-label
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# for any pod in an app-namespace.
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apiVersion: kubevirt.io/v1
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kind: VirtualMachine
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metadata:
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name: unifi
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namespace: unifi
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labels:
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app.kubernetes.io/name: unifi
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spec:
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running: true
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template:
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metadata:
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labels:
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kubevirt.io/vm: unifi
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app.kubernetes.io/name: unifi
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homelab.keithjackson.dev/egress-class: internet
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homelab.keithjackson.dev/auth-mode: native
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spec:
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# LiveMigrate on eviction — needs the RWX migratable disk (longhorn-vm). Without a shared
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# disk KubeVirt cannot migrate and eviction would hard-stop the guest.
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evictionStrategy: LiveMigrate
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domain:
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# FLAG (verify-at-bringup): Ubuntu 24.04 amd64 cloud images are hybrid BIOS+UEFI bootable,
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# so KubeVirt's default SeaBIOS SHOULD boot cleanly (unlike the Fedora containerdisk, which
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# is UEFI-only and needed an explicit efi block). If the guest drops to emergency/no-boot,
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# add: firmware: { bootloader: { efi: { secureBoot: false } } }
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cpu:
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cores: 2
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memory:
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guest: 4Gi # UOS min is 2Gi; 4Gi is comfortable for a home site. Bump to 8Gi
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# for large device counts / heavy DPI. Keep guest == requests below.
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devices:
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disks:
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- name: rootdisk
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disk:
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bus: virtio
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- name: cloudinit
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disk:
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bus: virtio
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interfaces:
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- name: default
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masquerade: {}
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# Declaring ports on a masquerade iface (a) restricts pod->VM forwarding to exactly
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# these and (b) surfaces them as containerPorts on the virt-launcher pod so the
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# LoadBalancer Services + CiliumNetworkPolicy ingress can target/match them.
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ports:
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- { name: inform, port: 8080, protocol: TCP } # device inform / adoption
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- { name: ui-legacy, port: 8443, protocol: TCP } # legacy Network UI (still served)
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- { name: ui, port: 11443, protocol: TCP } # UOS web UI (modern default)
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- { name: portal-http, port: 8880, protocol: TCP } # guest portal HTTP
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- { name: portal-https, port: 8843, protocol: TCP } # guest portal HTTPS
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- { name: throughput, port: 6789, protocol: TCP } # mobile speedtest / throughput
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- { name: stun, port: 3478, protocol: UDP } # STUN (device<->controller)
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- { name: discovery, port: 10001, protocol: UDP } # L2 device discovery
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resources:
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requests:
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memory: 4Gi
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networks:
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- name: default
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pod: {}
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volumes:
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- name: rootdisk
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dataVolume:
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name: unifi-rootdisk
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- name: cloudinit
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cloudInitNoCloud:
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# cloud-init is sourced from the `unifi-cloudinit` Secret (userDataSecretRef) rather than
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# inline, because the full userData (SSH key + install script) exceeds KubeVirt's 2048-byte
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# inline cloudInitNoCloud.userData limit. The Secret is generated from
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# apps/vms/unifi/unifi-cloudinit.yaml by the kustomization's secretGenerator (stable name,
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# no hash suffix). Content is non-sensitive (public key + public installer script).
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userDataSecretRef:
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name: unifi-cloudinit
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