Claude
862ecf10e9
extras/test_backup.sh — new unified test script (Kopia + Borg):
• Stops container, moves live data aside, restores latest backup,
compares restored vs live with diff -rq (content, not timestamps),
moves live data back and restarts container
• PASS = restore succeeded; diff output is informational (files changed
since last backup are normal)
• FAIL = restore command failed or target empty after restore
• --list flag, CLI service arg, interactive picker
• Handles both full-service dirs and sub-path sources (gaming-backup)
• Cleanup trap always restores live data even on error
• Sends ntfy notification on pass and fail
extras/backup_kopia.sh, backup_borg.sh, backup_gaming.sh:
• ntfy_send() + categorize_error() helpers added
• Each snapshot/archive failure captures stderr and categorizes:
disk full, remote unreachable, repository not found, wrong passphrase,
permission denied, unknown error
• Single ntfy notification at end: success (low priority) or failure
(urgent) with per-service failure reasons listed
• backup_borg.sh: changed 2>&1 | pipe to 2>"$_ERR" | so stdout logs
cleanly and stderr is captured for error categorization
services/backup.sh, borg-backup.sh, gaming-backup.sh:
• New ntfy prompt section in installer (URL + optional token)
• NTFY_URL / NTFY_TOKEN written to backup.conf
• test_backup.sh copied from extras/ into service dir
• Summary updated to show test_backup.sh commands and ntfy URL
https://claude.ai/code/session_019XgsQ13XKm4Zj3cNsDNwHj
474 lines
26 KiB
Bash
474 lines
26 KiB
Bash
#!/bin/bash
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# services/backup.sh — Full Docker-service backup via Kopia.
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# Part of the modular post-install system (sourced by setup.sh).
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#
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# Backs up each entire ~/docker/<service>/ directory (compose file, config, data,
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# databases — everything needed to restore from nothing). Per-service behaviour:
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# Minecraft instances — flush world to disk (save-all), snapshot, no downtime
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# All other services — stop, snapshot, restart (seconds of downtime each)
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#
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# Different services can be routed to different Kopia repos / drives.
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# New services are auto-discovered on every run — no reconfiguration needed.
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#
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# Creates: ~/docker/backup/
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# backup.conf settings + per-service destination map (chmod 600)
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# backup_kopia.sh worker (run directly or via systemd timer)
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# restore_kopia.sh interactive restore helper
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register_service backup backup "Encrypted backup of all Docker services (full restore)"
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install_backup() {
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require_docker || return 1
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local DIR="$DOCKER_DIR/backup"
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local CONF_FILE="$DIR/backup.conf"
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local WORKER="$DIR/backup_kopia.sh"
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local RESTORE="$DIR/restore_kopia.sh"
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local SVC_NAME="post-install-backup"
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echo ""
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echo "╔═══════════════════════════════════════════════════════════════════╗"
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echo "║ BACKUP STRATEGIES — choose the right tool for your data ║"
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echo "╚═══════════════════════════════════════════════════════════════════╝"
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echo ""
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echo " This installer sets up Kopia for full service backup, but here is"
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echo " a quick reference to all available options."
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echo ""
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echo " ┌─────────────────────────────────────────────────────────────────┐"
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echo " │ KOPIA (installed here) — block-level dedup + zstd + encryption │"
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echo " │ Use for: files that change constantly — Minecraft worlds, │"
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echo " │ databases, configs, entire Docker service directories. │"
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echo " │ Changed blocks stored once; unchanged blocks share space. │"
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echo " │ Restores via: restore_kopia_backup.sh (interactive) │"
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echo " └─────────────────────────────────────────────────────────────────┘"
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echo ""
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echo " ┌─────────────────────────────────────────────────────────────────┐"
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echo " │ BORG (sudo apt install borgbackup) — chunk dedup + encryption │"
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echo " │ Use for: same as Kopia. Choose Borg if you prefer Borgmatic │"
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echo " │ (YAML config), Vorta (GUI), or multi-machine repos. │"
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echo " │ borg init / borg create / borg list / borg extract │"
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echo " └─────────────────────────────────────────────────────────────────┘"
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echo ""
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echo " ┌─────────────────────────────────────────────────────────────────┐"
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echo " │ RSYNC plain rsync -av --delete /src/ /dest/ │"
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echo " │ Use for: media, ROMs, files that rarely change and you just │"
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echo " │ need a copy. Fast, transparent — no special restore tool. │"
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echo " │ Not suitable for files that change often (one bad --delete │"
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echo " │ run immediately destroys the only copy in the destination). │"
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echo " └─────────────────────────────────────────────────────────────────┘"
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echo ""
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echo " ┌─────────────────────────────────────────────────────────────────┐"
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echo " │ RSYNC --link-dest versioned snapshots, original folder layout │"
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echo " │ Creates dated dirs (2024-01-15/, 2024-01-16/, …). │"
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echo " │ Unchanged files are hard-linked — cost no extra disk space. │"
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echo " │ Each dated dir is a complete, browsable snapshot. │"
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echo " │ Use for: general files where you want versioning + readable │"
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echo " │ snapshot dirs without a special restore tool. │"
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echo " └─────────────────────────────────────────────────────────────────┘"
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echo ""
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echo " ┌─────────────────────────────────────────────────────────────────┐"
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echo " │ RSNAPSHOT (sudo apt install rsnapshot) — automated rotation │"
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echo " │ Wraps rsync with a retention scheme (daily.0, weekly.0, …). │"
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echo " │ Hard-links unchanged files; dirs named by rsnapshot. │"
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echo " │ Use for: automated versioning without scripting --link-dest. │"
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echo " └─────────────────────────────────────────────────────────────────┘"
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echo ""
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echo " Quick reference:"
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echo " Full service recovery, databases, configs → Kopia (this installer)"
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echo " Frequently changing saves without downtime → gaming-backup service"
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echo " Media / ROMs (rarely changes, just need a copy) → rsync plain"
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echo " Versioned snapshots, keep original folder layout → rsync --link-dest"
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echo " Versioned snapshots, want auto rotation scripted → rsnapshot"
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echo ""
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echo " Continuing with Kopia setup..."
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echo ""
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echo "╔═══════════════════════════════════════════════════════╗"
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echo "║ Backup Setup · Kopia ║"
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echo "║ Full ~/docker/<service>/ snapshots ║"
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echo "╚═══════════════════════════════════════════════════════╝"
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echo ""
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echo " Backs up each entire service directory — compose file, config, data,"
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echo " databases, everything needed to restore a service from scratch."
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echo ""
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echo " Minecraft: world flushed to disk (save-all), snapshot, NO downtime."
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echo " Everything else: stopped briefly, snapshotted, restarted."
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echo ""
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echo " Different services can go to different drives / Kopia repos."
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echo " New services are auto-detected on every run — no reconfiguration needed."
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echo ""
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if [ "$DRY_RUN" = true ]; then
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echo "[DRY-RUN] Would discover services under $DOCKER_DIR"
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echo "[DRY-RUN] Would create $DIR with conf, worker, and restore scripts"
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echo "[DRY-RUN] Would create Kopia repo(s) at user-specified paths"
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echo "[DRY-RUN] Would install systemd timer"
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return 0
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fi
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# ── 1. Kopia ─────────────────────────────────────────────────────────────
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if ! command -v kopia >/dev/null 2>&1; then
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log_info "Installing Kopia..."
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if command -v apt-get >/dev/null 2>&1; then
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install -d -m 0755 /etc/apt/keyrings
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curl -fsSL https://kopia.io/signing-key \
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| gpg --dearmor --yes -o /etc/apt/keyrings/kopia-keyring.gpg \
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&& echo "deb [signed-by=/etc/apt/keyrings/kopia-keyring.gpg] http://packages.kopia.io/apt/ stable main" \
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> /etc/apt/sources.list.d/kopia.list \
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&& apt-get update -y && apt-get install -y kopia
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fi
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fi
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command -v kopia >/dev/null 2>&1 \
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|| { log_error "Kopia not installed. See https://kopia.io/docs/installation/"; return 1; }
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local KOPIA_BIN; KOPIA_BIN="$(command -v kopia)"
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log_success "Kopia: $("$KOPIA_BIN" --version 2>/dev/null | head -1)"
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# ── 2. Discover installed services ───────────────────────────────────────
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local -a ALL_SVCS=()
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local d svc
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for d in "$DOCKER_DIR"/*/; do
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[ -f "${d}docker-compose.yml" ] || continue
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svc="$(basename "$d")"
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[[ "$svc" == "backup" || "$svc" == "gaming-backup" ]] && continue
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ALL_SVCS+=("$svc")
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done
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if [ "${#ALL_SVCS[@]}" -eq 0 ]; then
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log_warning "No services found under $DOCKER_DIR — auto-detected on each backup run."
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else
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log_info "Services found: ${ALL_SVCS[*]}"
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fi
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# ── 3. Destinations ───────────────────────────────────────────────────────
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echo ""
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echo "═══════════════════════════════════════════════════════"
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echo " BACKUP DESTINATIONS"
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echo "═══════════════════════════════════════════════════════"
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echo ""
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echo " Each destination is a Kopia repository directory."
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echo " For best resilience: use a different drive or mount point from your data."
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echo " Destination names must be letters, numbers, and underscores only."
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echo ""
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local DEFAULT_DEST="$ACTUAL_HOME/backups/kopia-backup"
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local _repo=""
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prompt_text " Default repository path [${DEFAULT_DEST}]:" "$DEFAULT_DEST" _repo
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_repo="${_repo/#\~/$ACTUAL_HOME}"; _repo="${_repo%/}"
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local -a DEST_NAMES_ARR=("default")
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local -A DEST_REPOS=() DEST_PASSWORDS=() DEST_CONFIGS=()
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DEST_REPOS["default"]="$_repo"
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DEST_CONFIGS["default"]="/etc/kopia-backup/default.config"
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local _extra=""
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prompt_yn " Add more destinations (for services on different drives)? (y/N):" "n" _extra
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if [[ "$_extra" =~ ^[Yy]$ ]]; then
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echo ""
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local _dn _dr
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while true; do
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prompt_text " Destination name (blank to finish):" "" _dn
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[ -z "$_dn" ] && break
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_dn="${_dn//[^a-zA-Z0-9_]/_}"
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[ "$_dn" = "default" ] && { log_warning " 'default' is reserved — use another name."; continue; }
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prompt_text " Path for '$_dn' repository:" "" _dr
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[ -z "$_dr" ] && continue
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_dr="${_dr/#\~/$ACTUAL_HOME}"; _dr="${_dr%/}"
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DEST_REPOS["$_dn"]="$_dr"
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DEST_CONFIGS["$_dn"]="/etc/kopia-backup/${_dn}.config"
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DEST_NAMES_ARR+=("$_dn")
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log_success " Destination '$_dn' → $_dr"
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done
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fi
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# ── 4. Service → destination assignment ──────────────────────────────────
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local -A SVC_DEST_MAP=()
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if [ "${#ALL_SVCS[@]}" -gt 0 ] && [ "${#DEST_NAMES_ARR[@]}" -gt 1 ]; then
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echo ""
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echo "═══════════════════════════════════════════════════════"
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echo " ASSIGN SERVICES TO DESTINATIONS"
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echo "═══════════════════════════════════════════════════════"
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echo ""
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echo " Destinations:"
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local dn
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for dn in "${DEST_NAMES_ARR[@]}"; do
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printf " %-16s %s\n" "$dn" "${DEST_REPOS[$dn]}"
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done
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echo ""
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echo " Press Enter to accept the default for each service."
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echo ""
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local _d
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for svc in "${ALL_SVCS[@]}"; do
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prompt_text " $svc [default]:" "default" _d
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if [ -n "$_d" ] && [ "$_d" != "default" ] && [ -n "${DEST_REPOS[$_d]:-}" ]; then
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SVC_DEST_MAP["$svc"]="$_d"
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fi
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done
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fi
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# ── 5. Passwords ─────────────────────────────────────────────────────────
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echo ""
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log_info "Setting repository passwords (stored in backup.conf, chmod 600)..."
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for dn in "${DEST_NAMES_ARR[@]}"; do
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local pw=""
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if [ "$UNATTENDED" = true ]; then
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pw="$(generate_password 32)"
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else
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read -rsp " Password for '$dn' [Enter = auto-generate]: " pw; echo
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fi
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[ -z "$pw" ] && pw="$(generate_password 32)" && log_info " Auto-generated password for '$dn'."
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DEST_PASSWORDS["$dn"]="$pw"
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done
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# ── 6. Schedule ───────────────────────────────────────────────────────────
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echo ""
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echo "═══════════════════════════════════════════════════════"
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echo " SCHEDULE & RETENTION"
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echo "═══════════════════════════════════════════════════════"
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echo ""
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echo " Minecraft runs uninterrupted; other services stop briefly (seconds each)."
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echo " Schedule for off-peak hours."
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echo ""
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echo " 1) Daily at 02:00 (recommended)"
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echo " 2) Every 12 hours"
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echo " 3) Weekly (Sunday 02:00)"
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echo " 4) Custom (systemd OnCalendar)"
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echo ""
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local _sch=""
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prompt_text " How often? [1]:" "1" _sch
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local ONCALENDAR SCHED_LABEL
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case "${_sch:-1}" in
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2) ONCALENDAR="*-*-* 02,14:00:00"; SCHED_LABEL="every 12 hours" ;;
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3) ONCALENDAR="Sun *-*-* 02:00:00"; SCHED_LABEL="weekly Sunday 02:00" ;;
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4) prompt_text " OnCalendar expression:" "*-*-* 02:00:00" ONCALENDAR; SCHED_LABEL="$ONCALENDAR" ;;
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*) ONCALENDAR="*-*-* 02:00:00"; SCHED_LABEL="daily at 02:00" ;;
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esac
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local KEEP_LATEST=""
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prompt_text " Snapshots to keep (latest)? [7]:" "7" KEEP_LATEST
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KEEP_LATEST="${KEEP_LATEST:-7}"
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# ── Notifications (ntfy) ─────────────────────────────────────────────────
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echo ""
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echo "═══════════════════════════════════════════════════════"
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echo " NOTIFICATIONS (optional)"
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echo "═══════════════════════════════════════════════════════"
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echo ""
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echo " Receive a push notification after every backup (and on failures)."
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echo " Uses ntfy — free and self-hostable. Create a topic at https://ntfy.sh"
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echo " Example URL: https://ntfy.sh/my-backup-alerts"
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echo ""
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local NTFY_URL="" NTFY_TOKEN=""
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prompt_text " ntfy topic URL (blank to skip):" "" NTFY_URL
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if [ -n "$NTFY_URL" ]; then
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prompt_text " ntfy access token (blank if public/no auth):" "" NTFY_TOKEN
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fi
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mkdir -p "$DIR"
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ensure_docker_dir_ownership "$DIR"
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local repo pw cfg
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for dn in "${DEST_NAMES_ARR[@]}"; do
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repo="${DEST_REPOS[$dn]}"
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pw="${DEST_PASSWORDS[$dn]}"
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cfg="${DEST_CONFIGS[$dn]}"
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mkdir -p "$repo" "$(dirname "$cfg")" /var/cache/kopia-backup
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kp_d() { env KOPIA_PASSWORD="$pw" "$KOPIA_BIN" --config-file="$cfg" "$@"; }
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if kp_d repository status >/dev/null 2>&1; then
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log_success "Connected to existing repo '$dn'."
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elif test -e "$repo/kopia.repository.f"; then
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log_info "Connecting to existing repo '$dn' at $repo ..."
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kp_d repository connect filesystem --path="$repo" \
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--cache-directory=/var/cache/kopia-backup \
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|| { log_error "Failed to connect to '$dn' repo."; return 1; }
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else
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log_info "Creating repo '$dn' at $repo ..."
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kp_d repository create filesystem --path="$repo" \
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--cache-directory=/var/cache/kopia-backup \
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|| { log_error "Failed to create '$dn' repo."; return 1; }
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fi
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kp_d policy set --global --compression=zstd \
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--keep-latest="$KEEP_LATEST" \
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--keep-daily=7 --keep-weekly=4 --keep-monthly=3 \
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--keep-annual=0 --keep-hourly=0 >/dev/null
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log_success "Repo '$dn' ready at $repo"
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done
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unset -f kp_d
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# ── 8. Write backup.conf ─────────────────────────────────────────────────
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log_info "Writing $CONF_FILE ..."
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{
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echo "# ── backup.conf ────────────────────────────────────────────────────────────"
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echo "# Generated $(date '+%F %T'). Safe to hand-edit."
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echo "# Worker : sudo $WORKER"
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echo "# Restore: sudo $RESTORE"
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echo ""
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echo "KOPIA=\"$KOPIA_BIN\""
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echo ""
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echo "# Space-separated list of destination names (defines iteration order)."
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echo "DEST_NAMES=\"${DEST_NAMES_ARR[*]}\""
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echo "DEST_DEFAULT=\"default\""
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echo ""
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for dn in "${DEST_NAMES_ARR[@]}"; do
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echo "# ── destination: $dn"
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echo "DEST_${dn}_REPO=\"${DEST_REPOS[$dn]}\""
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echo "DEST_${dn}_CONFIG=\"${DEST_CONFIGS[$dn]}\""
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printf "DEST_%s_PASSWORD='%s'\n" "$dn" "${DEST_PASSWORDS[$dn]}"
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echo ""
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done
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echo "# ── Service → destination map ───────────────────────────────────────────────"
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echo "# Format: SVC_<name>=<dest_name> (hyphens in service names become underscores)"
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echo "# Omit a service (or comment it out) to use DEST_DEFAULT."
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for svc in "${ALL_SVCS[@]}"; do
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local svc_var="${svc//-/_}"
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local dest_val="${SVC_DEST_MAP[$svc]:-}"
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if [ -n "$dest_val" ]; then
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echo "SVC_${svc_var}=\"${dest_val}\""
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else
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echo "# SVC_${svc_var}=\"default\""
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fi
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done
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echo ""
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echo "# ── Optional offsite mirror ─────────────────────────────────────────────────"
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echo "# Mirror ALL repos offsite after each run (see kopia repository sync-to --help)."
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echo "# Example SFTP: REMOTE_TYPE=sftp REMOTE_ARGS=\"--host H --username U --path /srv/...\""
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echo "REMOTE_TYPE=\"none\""
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echo "REMOTE_ARGS=\"\""
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echo ""
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echo "# ── Notifications (ntfy) ─────────────────────────────────────────────────────"
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echo "# Set NTFY_URL to receive backup success/failure alerts."
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echo "# Leave blank to disable. NTFY_TOKEN is optional (for private topics)."
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printf "NTFY_URL='%s'\n" "${NTFY_URL:-}"
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printf "NTFY_TOKEN='%s'\n" "${NTFY_TOKEN:-}"
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} > "$CONF_FILE"
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chown root:root "$CONF_FILE" 2>/dev/null || true
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chmod 600 "$CONF_FILE"
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log_success "backup.conf written (chmod 600)"
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# ── 9. Install worker script ──────────────────────────────────────────────
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log_info "Installing worker $WORKER ..."
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cp "${HERE:-}/extras/backup_kopia.sh" "$WORKER"
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chmod +x "$WORKER"
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chown root:root "$WORKER" 2>/dev/null || true
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log_success "backup_kopia.sh installed"
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# ── 10. Install restore script ────────────────────────────────────────────
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local RESTORE_SRC="${HERE:-}/extras/restore_kopia.sh"
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if [ -f "$RESTORE_SRC" ]; then
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cp "$RESTORE_SRC" "$RESTORE"
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chmod +x "$RESTORE"
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chown root:root "$RESTORE" 2>/dev/null || true
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log_success "restore_kopia.sh installed"
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else
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log_warning "extras/restore_kopia.sh not found — restore script not installed"
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log_warning "Copy it manually: cp extras/restore_kopia.sh $RESTORE"
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fi
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# ── 11. Install test script ──────────────────────────────────────────────
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local TEST_SCRIPT="$DIR/test_backup.sh"
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local TEST_SRC="${HERE:-}/extras/test_backup.sh"
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if [ -f "$TEST_SRC" ]; then
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cp "$TEST_SRC" "$TEST_SCRIPT"
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chmod +x "$TEST_SCRIPT"
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chown root:root "$TEST_SCRIPT" 2>/dev/null || true
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log_success "test_backup.sh installed"
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else
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log_warning "extras/test_backup.sh not found — test script not installed"
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fi
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# ── 12. Systemd timer ────────────────────────────────────────────────────
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log_info "Installing systemd timer ($SCHED_LABEL)..."
|
|
local AUTORUN=""
|
|
if command -v systemctl >/dev/null 2>&1 && [ -d /run/systemd/system ]; then
|
|
tee "/etc/systemd/system/${SVC_NAME}.service" >/dev/null << SVCEOF
|
|
[Unit]
|
|
Description=Post-install backup (full Docker service directories via Kopia)
|
|
After=docker.service network-online.target
|
|
Wants=docker.service
|
|
|
|
[Service]
|
|
Type=oneshot
|
|
ExecStart=/bin/bash $WORKER run
|
|
SVCEOF
|
|
|
|
tee "/etc/systemd/system/${SVC_NAME}.timer" >/dev/null << SVCEOF
|
|
[Unit]
|
|
Description=Schedule post-install backup ($SCHED_LABEL)
|
|
|
|
[Timer]
|
|
OnCalendar=$ONCALENDAR
|
|
Persistent=true
|
|
RandomizedDelaySec=300
|
|
|
|
[Install]
|
|
WantedBy=timers.target
|
|
SVCEOF
|
|
|
|
systemctl daemon-reload
|
|
systemctl enable --now "${SVC_NAME}.timer"
|
|
log_success "Timer enabled: $SCHED_LABEL"
|
|
AUTORUN="systemctl list-timers ${SVC_NAME}.timer"
|
|
else
|
|
log_warning "systemd not detected — installing cron fallback."
|
|
local CRON
|
|
case "${_sch:-1}" in
|
|
2) CRON="0 2,14 * * *" ;;
|
|
3) CRON="0 2 * * 0" ;;
|
|
*) CRON="0 2 * * *" ;;
|
|
esac
|
|
echo "$CRON root /bin/bash $WORKER run >> /var/log/${SVC_NAME}.log 2>&1" \
|
|
> "/etc/cron.d/${SVC_NAME}"
|
|
log_success "Cron job installed: $CRON"
|
|
AUTORUN="cat /etc/cron.d/${SVC_NAME}"
|
|
fi
|
|
|
|
# ── 12. Optional first run ────────────────────────────────────────────────
|
|
echo ""
|
|
local _now=""
|
|
prompt_yn " Run the first backup now? (y/N):" "n" _now
|
|
if [[ "$_now" =~ ^[Yy]$ ]]; then
|
|
/bin/bash "$WORKER" run || log_warning "First backup reported warnings — check output above."
|
|
fi
|
|
|
|
# ── Summary ───────────────────────────────────────────────────────────────
|
|
echo ""
|
|
echo "═══════════════════════════════════════════════════════"
|
|
echo " BACKUP CONFIGURED"
|
|
echo "═══════════════════════════════════════════════════════"
|
|
echo ""
|
|
echo " Config : $CONF_FILE"
|
|
echo " Worker : $WORKER"
|
|
echo " Schedule : $SCHED_LABEL"
|
|
echo ""
|
|
echo " Destinations:"
|
|
for dn in "${DEST_NAMES_ARR[@]}"; do
|
|
printf " %-16s %s\n" "$dn" "${DEST_REPOS[$dn]}"
|
|
done
|
|
echo ""
|
|
if [ "${#ALL_SVCS[@]}" -gt 0 ]; then
|
|
echo " Services backed up: ${ALL_SVCS[*]}"
|
|
else
|
|
echo " Services: none yet — auto-discovered on each run"
|
|
fi
|
|
echo ""
|
|
echo " Commands:"
|
|
echo " sudo $WORKER back up now"
|
|
echo " sudo $WORKER snapshots list all snapshots"
|
|
echo ""
|
|
echo " Restore:"
|
|
echo " sudo $RESTORE"
|
|
echo " sudo $RESTORE --list"
|
|
echo ""
|
|
echo " Backup test (stop/restore/compare/restore-back):"
|
|
echo " sudo $TEST_SCRIPT test most recent backup"
|
|
echo " sudo $TEST_SCRIPT --list list testable services"
|
|
echo " sudo $TEST_SCRIPT <service> test a specific service"
|
|
[ -n "${NTFY_URL:-}" ] && echo "" && echo " Notifications: $NTFY_URL"
|
|
echo ""
|
|
[ -n "$AUTORUN" ] && echo " $AUTORUN" && echo ""
|
|
log_warning "Save your passwords (in backup.conf) somewhere safe —"
|
|
log_warning "without them the encrypted repos cannot be restored."
|
|
echo ""
|
|
log_success "Backup configured."
|
|
}
|