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07_timer_enable.sh

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+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+SERVICE_NAME="raspi-backup.service"
+TIMER_NAME="raspi-backup.timer"
+SERVICE_PATH="/etc/systemd/system/${SERVICE_NAME}"
+TIMER_PATH="/etc/systemd/system/${TIMER_NAME}"
+
+[[ "${EUID:-$(id -u)}" -eq 0 ]] || { echo "Bitte mit sudo starten: sudo $SCRIPT_DIR/07_timer_enable.sh"; exit 1; }
+command -v systemctl >/dev/null 2>&1 || { echo "systemctl nicht gefunden."; exit 1; }
+
+RUN_SCRIPT="$SCRIPT_DIR/04_run_backup.sh"
+[[ -x "$RUN_SCRIPT" ]] || { echo "FEHLT oder nicht ausführbar: $RUN_SCRIPT"; exit 1; }
+
+cat >"$SERVICE_PATH" <<EOF
+[Unit]
+Description=Raspi Backup (runs 04_run_backup.sh)
+Wants=network-online.target
+After=network-online.target
+
+[Service]
+Type=oneshot
+ExecStart=${RUN_SCRIPT}
+
+# etwas Hardening
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectSystem=full
+ProtectHome=false
+EOF
+
+cat >"$TIMER_PATH" <<EOF
+[Unit]
+Description=Raspi Backup daily timer
+
+[Timer]
+OnCalendar=daily
+Persistent=true
+RandomizedDelaySec=10m
+
+[Install]
+WantedBy=timers.target
+EOF
+
+systemctl daemon-reload
+systemctl enable --now "$TIMER_NAME"
+
+echo "Timer aktiviert."
+echo "Status:"
+systemctl --no-pager status "$TIMER_NAME" || true
+echo
+echo "Nächste Runs anzeigen:"
+systemctl list-timers --all | grep -E "raspi-backup\.timer|NEXT" || true