Initial commit: MAAS-deployable Proxmox VE images with cluster automation

Builds a Proxmox VE image that MAAS can deploy to bare metal, plus first-boot
automation that configures the node and joins it to a Proxmox cluster with no
manual steps.

The image starts from the official Debian cloud image and installs proxmox-ve
on top of it, rather than capturing a raw disk from the Proxmox ISO. That keeps
MAAS in control of partitioning, networking, SSH keys and cloud-init, and makes
moving between Proxmox releases a variable change instead of a rewrite.

Contents:

  * Makefile driving the whole flow: build, verify, preseed, upload
  * customize-proxmox.sh, run inside the Packer build VM, which layers Proxmox
    onto the Debian cloud image and resets the pmxcfs node identity so one image
    can produce many nodes
  * pve-maas-init, a first-boot state machine covering /etc/hosts, node-unique
    identifiers, the root password, vmbr0 conversion, cluster create/join and
    the local-lvm thin pool; each stage is resumable across reboots
  * curtin-hooks, which stops curtin installing a kernel over APT and pins
    interface names by MAC so they match what MAAS recorded at commissioning
  * a MAAS curtin preseed template and cloud-init examples
  * deploy-cluster.sh, which builds a whole cluster through the MAAS API
  * verify-image.sh, 22 static checks on the produced tarball

Cluster identity lives entirely in deploy-time cloud-init user-data, so a single
image and preseed can build any number of independent clusters.

Verified end to end against MAAS 3.7.2: proxmox-ve 9.2.0 / pve-manager 9.2.11 /
kernel 7.0.14-15-pve, deployed to two machines that formed a quorate cluster with
local-lvm on both, with no manual intervention.

The README documents four failure modes found along the way that all fail
silently: curtin rejecting "kernel: null", pvenetcommit overwriting the network
configuration at boot, interface renaming leaving the link down, and a systemd
ordering cycle that made systemd delete the service's start job.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-09-04 21:50:17 +02:00
commit 3d4841f31c
18 changed files with 3395 additions and 0 deletions

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#!/bin/bash
#
# deploy-cluster.sh - MAAS uzerinden komple bir Proxmox VE kumesi kurar.
#
# Ilk dugumu 'create' modunda deploy eder, ayaga kalkmasini bekler, sertifika
# parmak izini okur ve kalan dugumleri o parmak iziyle 'join' modunda deploy eder.
#
# NEREDE CALISTIRILIR: MAAS region controller uzerinde (ya da 'maas' CLI profili
# tanimli ve dugumlerin 8006 portuna erisebilen bir makinede).
#
# Ornek:
# ./deploy-cluster.sh --name pve-prod --nodes pve1,pve2,pve3
# ./deploy-cluster.sh --name pve-dr --nodes dr1,dr2 --profile admin --dry-run
#
set -euo pipefail
PROFILE=admin
CLUSTER_NAME=""
NODES=""
DISTRO_SERIES=proxmox-ve-9
ROOT_PASSWORD=""
ROOT_PASSWORD_HASH=""
THINPOOL=auto
THINPOOL_MIN_GB=16
NET_APPLY=reboot
LINK0_PREFIX=""
DEPLOY_TIMEOUT=2400
PEER_TIMEOUT=1200
SERIAL=false
DRY_RUN=false
usage() {
# Bastaki yorum blogunu, ilk kod satirina kadar bas.
awk 'NR>1 && /^#/{sub(/^# ?/,""); print; next} NR>1 && !/^#/{exit}' "$0"
cat <<EOF
Secenekler:
--name <ad> Kume adi (zorunlu)
--nodes <a,b,c> MAAS hostname listesi; ILKI kumeyi olusturur (zorunlu)
--profile <ad> maas CLI profili (varsayilan: ${PROFILE})
--distro-series <ad> MAAS ozel imaj adi (varsayilan: ${DISTRO_SERIES})
--root-password <p> root@pam parolasi. Verilmezse uretilir ve ekrana yazilir.
--thinpool <deger> auto | off | <vg-adi> (varsayilan: ${THINPOOL})
--thinpool-min-gb <n> Thin havuz icin gereken en az bos alan (varsayilan: ${THINPOOL_MIN_GB})
--net-apply <mod> reboot | reload | none (varsayilan: ${NET_APPLY})
--link0-prefix <cidr> Corosync link0 icin ayri ag oneki, or. 10.10.20.
Dugumun o agdaki adresi otomatik bulunur.
--serial Katilan dugumleri teker teker deploy et (buyuk kumelerde)
--dry-run Hicbir sey deploy etme, uretilecek user-data'yi goster
-h, --help Bu yardim
Notlar:
* Kume dugumunun root parolasi API dogrulamasi icin DUZ METIN olarak
user-data'ya girer ve MAAS'ta saklanir. Kisa omurlu bir parola kullanip
kurulumdan sonra degistirin.
* Ayni imaj ve preseed ile birden fazla bagimsiz kume kurabilirsiniz;
kume kimligi yalnizca bu user-data'dan gelir.
EOF
}
while [ $# -gt 0 ]; do
case "$1" in
--name) CLUSTER_NAME="$2"; shift 2 ;;
--nodes) NODES="$2"; shift 2 ;;
--profile) PROFILE="$2"; shift 2 ;;
--distro-series) DISTRO_SERIES="$2"; shift 2 ;;
--root-password) ROOT_PASSWORD="$2"; shift 2 ;;
--thinpool) THINPOOL="$2"; shift 2 ;;
--thinpool-min-gb) THINPOOL_MIN_GB="$2"; shift 2 ;;
--net-apply) NET_APPLY="$2"; shift 2 ;;
--link0-prefix) LINK0_PREFIX="$2"; shift 2 ;;
--serial) SERIAL=true; shift ;;
--dry-run) DRY_RUN=true; shift ;;
-h|--help) usage; exit 0 ;;
*) echo "Bilinmeyen secenek: $1" >&2; usage; exit 2 ;;
esac
done
[ -n "$CLUSTER_NAME" ] || { echo "HATA: --name zorunlu" >&2; exit 2; }
[ -n "$NODES" ] || { echo "HATA: --nodes zorunlu" >&2; exit 2; }
for c in maas jq openssl base64; do
command -v "$c" >/dev/null || { echo "HATA: '$c' bulunamadi" >&2; exit 1; }
done
IFS=',' read -r -a NODE_LIST <<< "$NODES"
FIRST="${NODE_LIST[0]}"
JOINERS=("${NODE_LIST[@]:1}")
log() { printf '\n\033[1m==> %s\033[0m\n' "$*"; }
info() { printf ' %s\n' "$*"; }
die() { printf '\n\033[1;31mHATA: %s\033[0m\n' "$*" >&2; exit 1; }
# ---------------------------------------------------------------- kimlik bilgileri
if [ -z "$ROOT_PASSWORD" ]; then
ROOT_PASSWORD="$(openssl rand -base64 15 | tr -d '/+=' | head -c 16)"
GENERATED=true
else
GENERATED=false
fi
ROOT_PASSWORD_HASH="$(openssl passwd -6 "$ROOT_PASSWORD")"
# ---------------------------------------------------------------- MAAS yardimcilari
maas_get() { maas "$PROFILE" machines read hostname="$1" 2>/dev/null | jq -r ".[0].$2 // empty"; }
require_ready() {
local h st
for h in "${NODE_LIST[@]}"; do
st="$(maas_get "$h" status_name)"
[ -n "$st" ] || die "MAAS'ta '$h' adinda makine yok"
[ "$st" = "Ready" ] || die "'$h' durumu '$st' - deploy icin 'Ready' olmali (once release edin)"
info "$h: Ready"
done
}
wait_status() {
local h="$1" want="$2" timeout="$3" waited=0 st
while [ "$waited" -lt "$timeout" ]; do
st="$(maas_get "$h" status_name)"
case "$st" in
"$want") return 0 ;;
Failed*|Broken*) die "'$h' durumu '$st' - MAAS olaylarina bakin" ;;
esac
sleep 20; waited=$((waited + 20))
done
die "'$h' ${timeout}s icinde '$want' durumuna gelmedi (son durum: ${st:-bilinmiyor})"
}
node_ip() { maas "$PROFILE" machines read hostname="$1" 2>/dev/null | jq -r '.[0].ip_addresses[0] // empty'; }
wait_port() {
local ip="$1" port="$2" timeout="$3" waited=0
while [ "$waited" -lt "$timeout" ]; do
if timeout 4 bash -c "exec 3<>/dev/tcp/${ip}/${port}" 2>/dev/null; then return 0; fi
sleep 10; waited=$((waited + 10))
done
die "${ip}:${port} ${timeout}s icinde acilmadi"
}
fingerprint_of() {
openssl s_client -connect "$1:8006" -servername "$1" </dev/null 2>/dev/null \
| openssl x509 -noout -fingerprint -sha256 2>/dev/null | cut -d= -f2
}
# Dugumun link0 oneki ile eslesen adresini MAAS'tan bul.
link0_of() {
[ -n "$LINK0_PREFIX" ] || return 0
maas "$PROFILE" machines read hostname="$1" 2>/dev/null \
| jq -r --arg p "$LINK0_PREFIX" '.[0].ip_addresses[]? | select(startswith($p))' | head -1
}
# ---------------------------------------------------------------- user-data uretimi
render_userdata() {
local mode="$1" host="$2" peer="${3:-}" fp="${4:-}" link0
link0="$(link0_of "$host")"
cat <<EOF
#cloud-config
# ${host} - kume '${CLUSTER_NAME}' (${mode})
# deploy-cluster.sh tarafindan uretildi
write_files:
- path: /etc/pve-maas/conf.d/50-pve.conf
permissions: "0600"
owner: root:root
content: |
PVE_ROOT_PASSWORD_HASH='${ROOT_PASSWORD_HASH}'
PVE_NET_APPLY=${NET_APPLY}
PVE_THINPOOL=${THINPOOL}
PVE_THINPOOL_MIN_GB=${THINPOOL_MIN_GB}
EOF
if [ "$mode" = "create" ]; then
cat <<EOF
PVE_CLUSTER_MODE=create
PVE_CLUSTER_NAME=${CLUSTER_NAME}
EOF
else
cat <<EOF
PVE_CLUSTER_MODE=join
PVE_CLUSTER_PEER=${peer}
PVE_CLUSTER_PEER_PASSWORD='${ROOT_PASSWORD}'
PVE_CLUSTER_FINGERPRINT='${fp}'
EOF
fi
[ -n "$link0" ] && echo " PVE_CLUSTER_LINK0=${link0}"
return 0
}
deploy_node() {
local host="$1" ud="$2" sid
sid="$(maas_get "$host" system_id)"
maas "$PROFILE" machine deploy "$sid" \
osystem=custom "distro_series=${DISTRO_SERIES}" \
"user_data=$(printf '%s' "$ud" | base64 -w0)" >/dev/null
}
# ---------------------------------------------------------------- akis
log "Kume: ${CLUSTER_NAME}"
info "ilk dugum (create) : ${FIRST}"
info "katilanlar (join) : ${JOINERS[*]:-yok}"
info "imaj : custom/${DISTRO_SERIES}"
[ -n "$LINK0_PREFIX" ] && info "corosync link0 oneki: ${LINK0_PREFIX}"
if [ "$DRY_RUN" = true ]; then
log "DRY RUN - hicbir sey deploy edilmiyor"
echo "--- ${FIRST} (create) ---"
render_userdata create "$FIRST"
for h in "${JOINERS[@]:-}"; do
[ -n "$h" ] || continue
echo "--- ${h} (join) ---"
render_userdata join "$h" "<ilk-dugumun-IP-si>" "<parmak-izi>"
done
echo
echo "root@pam parolasi: ${ROOT_PASSWORD}"
exit 0
fi
log "Makineler kontrol ediliyor"
require_ready
log "${FIRST} deploy ediliyor (kume olusturuluyor)"
deploy_node "$FIRST" "$(render_userdata create "$FIRST")"
wait_status "$FIRST" Deployed "$DEPLOY_TIMEOUT"
info "MAAS deploy tamamlandi"
FIRST_IP="$(node_ip "$FIRST")"
[ -n "$FIRST_IP" ] || die "'$FIRST' icin IP bulunamadi"
info "IP: ${FIRST_IP}"
info "Proxmox arayuzunun acilmasi bekleniyor (ag donusumu icin bir kez yeniden baslar)"
wait_port "$FIRST_IP" 8006 "$PEER_TIMEOUT"
FP="$(fingerprint_of "$FIRST_IP")"
[ -n "$FP" ] || die "'$FIRST' sertifika parmak izi okunamadi"
info "parmak izi: ${FP}"
if [ "${#JOINERS[@]}" -eq 0 ] || [ -z "${JOINERS[0]:-}" ]; then
log "Katilacak baska dugum yok"
else
log "Katilan dugumler deploy ediliyor"
for h in "${JOINERS[@]}"; do
info "deploy: $h"
deploy_node "$h" "$(render_userdata join "$h" "$FIRST_IP" "$FP")"
if [ "$SERIAL" = true ]; then
wait_status "$h" Deployed "$DEPLOY_TIMEOUT"
info "$h: MAAS deploy tamamlandi, kumeye katilmasi bekleniyor"
sleep 60
fi
done
[ "$SERIAL" = false ] && {
for h in "${JOINERS[@]}"; do wait_status "$h" Deployed "$DEPLOY_TIMEOUT"; info "$h: deploy tamamlandi"; done
}
fi
log "Kume durumu bekleniyor"
EXPECTED="${#NODE_LIST[@]}"
# Tum dugumlerin 8006'da yanit vermesini bekle - kume uyeligini asagidaki
# talimatla dugum uzerinden dogrulayin (bu script dugumlere SSH yapmaz).
for h in "${NODE_LIST[@]}"; do
ip="$(node_ip "$h")"
if [ -n "$ip" ] && wait_port "$ip" 8006 300 2>/dev/null; then
info "$h ($ip): Proxmox arayuzu acik"
else
info "$h: 8006 acilmadi - 'journalctl -u pve-maas-init -b' ile bakin"
fi
done
cat <<EOF
Kume '${CLUSTER_NAME}' kuruldu.
Ilk dugum : ${FIRST} (${FIRST_IP})
Web arayuzu : https://${FIRST_IP}:8006/
Kullanici : root@pam
Parola : ${ROOT_PASSWORD}$([ "$GENERATED" = true ] && echo " <- uretildi, kaydedin")
Dogrulamak icin bir dugumde:
pvecm status # 'Nodes: ${EXPECTED}' ve 'Quorate: Yes' bekleniyor
pvecm nodes
Dugumler kumeye katilmadiysa ilgili dugumde:
journalctl -u pve-maas-init -b
EOF