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scripts/verify-backup.sh

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+#!/usr/bin/env bash
+# =============================================================================
+# verify-backup.sh – Prüft die Integrität des Borg-Repositories und der Archive
+# =============================================================================
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+CONFIG_FILE="${SCRIPT_DIR}/../config/backup.conf"
+source "$CONFIG_FILE"
+
+export BORG_PASSPHRASE
+export BORG_REPO
+
+GREEN='\033[0;32m'; RED='\033[0;31m'; YELLOW='\033[1;33m'; BLUE='\033[0;34m'; NC='\033[0m'
+log()     { echo -e "${BLUE}[CHECK]${NC} $*"; }
+log_ok()  { echo -e "${GREEN}[CHECK] ✓${NC} $*"; }
+log_warn(){ echo -e "${YELLOW}[CHECK] ⚠${NC} $*"; }
+log_err() { echo -e "${RED}[CHECK] ✗${NC} $*" >&2; }
+
+ERRORS=0
+
+# --- 1. Repository-Integrität ------------------------------------------------
+log "Prüfe Repository-Integrität..."
+if borg check --repository-only "${BORG_REPO}"; then
+    log_ok "Repository OK"
+else
+    log_err "Repository-Fehler gefunden!"
+    ((ERRORS++)) || true
+fi
+
+# --- 2. Aktuellstes Archiv je Datenbank prüfen -------------------------------
+log "Prüfe aktuellste Archive..."
+for db in "${PG_DATABASES[@]}"; do
+    latest=$(borg list --short "${BORG_REPO}" | grep "^${db}-" | sort -r | head -1)
+
+    if [[ -z "$latest" ]]; then
+        log_err "Kein Archiv für Datenbank '${db}' gefunden!"
+        ((ERRORS++)) || true
+        continue
+    fi
+
+    log "Prüfe Archiv: ${latest}"
+    if borg check --archives-only "${BORG_REPO}::${latest}"; then
+        log_ok "Archiv OK: ${latest}"
+    else
+        log_err "Archiv fehlerhaft: ${latest}"
+        ((ERRORS++)) || true
+    fi
+
+    # Alter des Backups prüfen
+    archive_ts=$(borg info "${BORG_REPO}::${latest}" | grep "^Time (start)" | awk '{print $4, $5}')
+    archive_epoch=$(date -d "$archive_ts" +%s 2>/dev/null || echo 0)
+    now_epoch=$(date +%s)
+    age_hours=$(( (now_epoch - archive_epoch) / 3600 ))
+
+    if [[ $age_hours -gt 26 ]]; then
+        log_warn "Letztes Backup von '${db}' ist ${age_hours}h alt (>26h)!"
+    else
+        log_ok "Letztes Backup von '${db}': ${age_hours}h alt"
+    fi
+done
+
+# --- 3. Festplattenplatz ------------------------------------------------------
+log "Prüfe Speicherplatz..."
+REPO_DIR="$(dirname "$BORG_REPO")"
+df_out=$(df -h "$REPO_DIR" | tail -1)
+used_pct=$(echo "$df_out" | awk '{print $5}' | tr -d '%')
+
+echo "  $df_out"
+if [[ $used_pct -ge 90 ]]; then
+    log_err "Speicherplatz kritisch: ${used_pct}% belegt!"
+    ((ERRORS++)) || true
+elif [[ $used_pct -ge 80 ]]; then
+    log_warn "Speicherplatz knapp: ${used_pct}% belegt"
+else
+    log_ok "Speicherplatz OK: ${used_pct}% belegt"
+fi
+
+# --- 4. Repo-Statistiken ausgeben --------------------------------------------
+log "Repository-Statistiken:"
+borg info "${BORG_REPO}" | grep -E "All archives|Unique chmods|Deduplicated" || true
+
+# --- Ergebnis ----------------------------------------------------------------
+echo ""
+if [[ $ERRORS -eq 0 ]]; then
+    log_ok "Alle Checks bestanden!"
+    exit 0
+else
+    log_err "${ERRORS} Fehler gefunden!"
+    exit 1
+fi