From 81a2a4ba5497e9a90199af0d9acf310f940bac69 Mon Sep 17 00:00:00 2001
From: Adyrem <fanfohcd@gmail.com>
Date: Fri, 15 May 2026 14:45:18 +0200
Subject: [PATCH] Add sanoid/syncoid ZFS snapshot and replication config

- sanoid: daily snapshots (7d) + weekly (4w) for rpool/data (VM disks)
  and rpool/ROOT (Proxmox OS); runs every 15 min via systemd timer
- syncoid: daily replication from rpool/data and pve-root to hdd/backups
  at 02:00; first full sync completed successfully
- All VM disks (gitea, monitoring) now backed up to HDD pool

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 proxmox/sanoid.conf     | 28 ++++++++++++++++++++++++++++
 proxmox/syncoid.service |  8 ++++++++
 proxmox/syncoid.timer   | 11 +++++++++++
 3 files changed, 47 insertions(+)
 create mode 100644 proxmox/sanoid.conf
 create mode 100644 proxmox/syncoid.service
 create mode 100644 proxmox/syncoid.timer

diff --git a/proxmox/sanoid.conf b/proxmox/sanoid.conf
new file mode 100644
index 0000000..fbd6cc5
--- /dev/null
+++ b/proxmox/sanoid.conf
@@ -0,0 +1,28 @@
+# VM disks on SSD pool — snapshot daily/weekly
+[rpool/data]
+    use_template = vms
+    recursive = yes
+
+# Proxmox OS root — lighter schedule, mainly for recovery
+[rpool/ROOT]
+    use_template = system
+    recursive = yes
+
+#############################
+[template_vms]
+    daily = 7
+    weekly = 4
+    monthly = 0
+    hourly = 0
+    frequently = 0
+    autosnap = yes
+    autoprune = yes
+
+[template_system]
+    daily = 3
+    weekly = 2
+    monthly = 0
+    hourly = 0
+    frequently = 0
+    autosnap = yes
+    autoprune = yes
diff --git a/proxmox/syncoid.service b/proxmox/syncoid.service
new file mode 100644
index 0000000..ea89224
--- /dev/null
+++ b/proxmox/syncoid.service
@@ -0,0 +1,8 @@
+[Unit]
+Description=Syncoid ZFS replication to HDD
+After=zfs.target
+
+[Service]
+Type=oneshot
+ExecStart=/usr/sbin/syncoid --recursive --no-privilege-elevation rpool/data hdd/backups/rpool-data
+ExecStart=/usr/sbin/syncoid --no-privilege-elevation rpool/ROOT/pve-1 hdd/backups/pve-root
diff --git a/proxmox/syncoid.timer b/proxmox/syncoid.timer
new file mode 100644
index 0000000..98237c7
--- /dev/null
+++ b/proxmox/syncoid.timer
@@ -0,0 +1,11 @@
+[Unit]
+Description=Daily ZFS replication to HDD
+After=sanoid.timer
+
+[Timer]
+OnCalendar=*-*-* 02:00:00
+RandomizedDelaySec=10min
+Persistent=true
+
+[Install]
+WantedBy=timers.target