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#!/bin/bash
# zfs-replicate - Replicate ZFS datasets to TrueNAS
#
# Usage:
# zfs-replicate # Replicate all configured datasets
# zfs-replicate [dataset] # Replicate specific dataset
set -e
# TrueNAS Configuration
# Try local network first, fall back to tailscale
TRUENAS_LOCAL="truenas.local"
TRUENAS_TAILSCALE="truenas"
TRUENAS_USER="root"
TRUENAS_POOL="vault"
BACKUP_PATH="backups" # TODO: Configure actual path
# Datasets to replicate
DATASETS="zroot/ROOT/default zroot/home zroot/media zroot/vms"
# Colors
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
RED='\033[0;31m'
NC='\033[0m'
info() { echo -e "${GREEN}[INFO]${NC} $1"; }
warn() { echo -e "${YELLOW}[WARN]${NC} $1"; }
error() { echo -e "${RED}[ERROR]${NC} $1"; exit 1; }
command -v syncoid >/dev/null 2>&1 || error "syncoid not found. Install sanoid package."
# Determine which host to use
determine_host() {
if ping -c 1 -W 2 "$TRUENAS_LOCAL" &>/dev/null; then
echo "$TRUENAS_LOCAL"
elif ping -c 1 -W 2 "$TRUENAS_TAILSCALE" &>/dev/null; then
echo "$TRUENAS_TAILSCALE"
else
error "Cannot reach TrueNAS at $TRUENAS_LOCAL or $TRUENAS_TAILSCALE"
fi
}
TRUENAS_HOST=$(determine_host)
info "Using TrueNAS host: $TRUENAS_HOST"
# Single dataset mode
if [[ -n "$1" ]]; then
dataset="$1"
dest="$TRUENAS_USER@$TRUENAS_HOST:$TRUENAS_POOL/$BACKUP_PATH/${dataset#zroot/}"
info "Replicating $dataset -> $dest"
syncoid --recursive "$dataset" "$dest"
exit 0
fi
# Full replication
info "Starting ZFS replication to $TRUENAS_HOST"
echo ""
for dataset in $DATASETS; do
dest="$TRUENAS_USER@$TRUENAS_HOST:$TRUENAS_POOL/$BACKUP_PATH/${dataset#zroot/}"
info "Replicating $dataset -> $dest"
if syncoid --recursive "$dataset" "$dest"; then
info " Success"
else
warn " Failed (will retry next run)"
fi
echo ""
done
info "Replication complete."
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