forked from schiwagoa/docker-backup-sftp-uploader
Mein Versuch zu fixen
This commit is contained in:
Patrick Asmus
+223
-54
@@ -1,31 +1,44 @@
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#!/bin/bash
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#!/usr/bin/env bash
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set -o pipefail
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set -Eeuo pipefail
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########################################
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# Konfiguration
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########################################
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SFTP_HOST="sftp.example.com"
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SFTP_PORT="22"
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SFTP_USER="user"
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SFTP_PASS="Tpassw0rd"
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SFTP_REMOTE_DIR="/uploads"
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SFTP_HOST="${SFTP_HOST:-sftp.example.com}"
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SFTP_PORT="${SFTP_PORT:-22}"
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SFTP_USER="${SFTP_USER:-user}"
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SFTP_PASS="${SFTP_PASS:-Tpassw0rd}"
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SFTP_REMOTE_DIR="${SFTP_REMOTE_DIR:-/uploads}"
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MAIL_TO=""
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MAIL_FROM=""
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MAIL_TO="${MAIL_TO:-}"
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MAIL_FROM="${MAIL_FROM:-}"
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# Nicht /tmp verwenden: viele Systeme mounten /tmp klein oder als tmpfs.
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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DIR_NAME="$(basename "$SCRIPT_DIR")"
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BACKUP_DIR="${BACKUP_DIR:-$(dirname "$SCRIPT_DIR")/${DIR_NAME}_backups}"
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LOG_DIR="${LOG_DIR:-${BACKUP_DIR}/logs}"
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KEEP_LOCAL_BACKUP="${KEEP_LOCAL_BACKUP:-false}"
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MIN_FREE_MB="${MIN_FREE_MB:-1024}"
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########################################
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# Variablen
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########################################
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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DIR_NAME="$(basename "$SCRIPT_DIR")"
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DATE=$(date +"%Y-%m-%d_%H-%M-%S")
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DATE="$(date +"%Y-%m-%d_%H-%M-%S")"
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BACKUP_FILE="${DIR_NAME}_${DATE}.tar.gz"
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LOGFILE="/tmp/${DIR_NAME}_backup.log"
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mkdir -p "$BACKUP_DIR" "$LOG_DIR"
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BACKUP_DIR="$(cd "$BACKUP_DIR" && pwd)"
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LOG_DIR="$(cd "$LOG_DIR" && pwd)"
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BACKUP_PATH="${BACKUP_DIR}/${BACKUP_FILE}"
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LOGFILE="${LOG_DIR}/${DIR_NAME}_backup_${DATE}.log"
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DOCKER_STOPPED=false
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SUCCESS=false
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########################################
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# Logging
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@@ -34,28 +47,92 @@ LOGFILE="/tmp/${DIR_NAME}_backup.log"
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exec > >(tee -a "$LOGFILE")
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exec 2>&1
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echo "========================================="
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echo "Backup gestartet: $(date)"
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echo "Projekt: $DIR_NAME"
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echo "========================================="
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log() {
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echo "[$(date +"%Y-%m-%d %H:%M:%S")] $*"
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}
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log "========================================="
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log "Backup gestartet"
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log "Projekt: $DIR_NAME"
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log "Backup-Datei: $BACKUP_PATH"
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log "Log-Datei: $LOGFILE"
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log "========================================="
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########################################
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# Fehlerbehandlung
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# Hilfsfunktionen
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########################################
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require_command() {
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local command_name="$1"
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if ! command -v "$command_name" >/dev/null 2>&1; then
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log "FEHLER: Benötigtes Kommando fehlt: $command_name"
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return 1
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fi
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}
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send_mail() {
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local subject="$1"
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local body="$2"
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if [[ -z "$MAIL_TO" ]]; then
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log "Hinweis: MAIL_TO ist leer, Mailversand wird übersprungen."
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return 0
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fi
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if ! command -v mail >/dev/null 2>&1; then
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log "WARNUNG: Kommando 'mail' wurde nicht gefunden, Mailversand nicht möglich."
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return 0
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fi
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if [[ -n "$MAIL_FROM" ]]; then
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if printf '%s\n' "$body" | mail -r "$MAIL_FROM" -s "$subject" "$MAIL_TO"; then
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return 0
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fi
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log "WARNUNG: Mailversand mit MAIL_FROM fehlgeschlagen, versuche ohne Absenderoption."
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fi
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if ! printf '%s\n' "$body" | mail -s "$subject" "$MAIL_TO"; then
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log "WARNUNG: Mailversand fehlgeschlagen."
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fi
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}
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send_error_mail() {
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local exit_code="$1"
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local body
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SUBJECT="❌ Backup FEHLGESCHLAGEN - ${DIR_NAME}"
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body="$(cat <<EOF
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Backup fehlgeschlagen.
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mail -s "$SUBJECT" "$MAIL_TO" < "$LOGFILE"
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Projekt:
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${DIR_NAME}
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Datum:
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$(date)
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Exit-Code:
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${exit_code}
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Log-Datei:
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${LOGFILE}
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Log:
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$(cat "$LOGFILE" 2>/dev/null || true)
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EOF
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)"
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send_mail "Backup FEHLGESCHLAGEN - ${DIR_NAME}" "$body"
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}
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send_success_mail() {
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local size
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local body
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SIZE=$(du -h "/tmp/${BACKUP_FILE}" | awk '{print $1}')
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mail -s "✅ Backup erfolgreich - ${DIR_NAME} (${SIZE})" "$MAIL_TO" << EOF
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size="$(du -h "$BACKUP_PATH" | awk '{print $1}')"
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body="$(cat <<EOF
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Backup erfolgreich abgeschlossen.
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Projekt:
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@@ -67,38 +144,137 @@ $(date)
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Backup:
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${BACKUP_FILE}
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Größe:
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${SIZE}
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Groesse:
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${size}
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Remote-Ziel:
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${SFTP_HOST}:${SFTP_REMOTE_DIR}/${BACKUP_FILE}
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Log:
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$(cat "$LOGFILE")
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EOF
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)"
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send_mail "Backup erfolgreich - ${DIR_NAME} (${size})" "$body"
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}
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trap 'send_error_mail; exit 1' ERR
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cleanup_local_backup() {
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if [[ "$KEEP_LOCAL_BACKUP" == "true" ]]; then
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log "Lokales Backup bleibt erhalten: $BACKUP_PATH"
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return 0
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fi
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if [[ -f "$BACKUP_PATH" ]]; then
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log "Entferne lokales Backup: $BACKUP_PATH"
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rm -f "$BACKUP_PATH"
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fi
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}
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start_docker_if_needed() {
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if [[ "$DOCKER_STOPPED" == "true" ]]; then
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log "Starte Docker..."
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docker compose up -d
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DOCKER_STOPPED=false
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fi
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}
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on_error() {
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local exit_code="$?"
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log "FEHLER: Backup fehlgeschlagen (Exit-Code: ${exit_code})."
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if [[ "$DOCKER_STOPPED" == "true" ]]; then
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log "Versuche Docker nach Fehler wieder zu starten..."
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if docker compose up -d; then
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DOCKER_STOPPED=false
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log "Docker wurde nach Fehler wieder gestartet."
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else
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log "WARNUNG: Docker konnte nach Fehler nicht gestartet werden."
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fi
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fi
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send_error_mail "$exit_code"
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cleanup_local_backup
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exit "$exit_code"
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}
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on_exit() {
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local exit_code="$?"
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if [[ "$SUCCESS" == "true" ]]; then
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cleanup_local_backup
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fi
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exit "$exit_code"
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}
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check_free_space() {
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local source_kb
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local required_kb
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local free_kb
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local min_free_kb
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source_kb="$(du -sk "$SCRIPT_DIR" | awk '{print $1}')"
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min_free_kb=$((MIN_FREE_MB * 1024))
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required_kb=$((source_kb + (source_kb / 10) + min_free_kb))
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free_kb="$(df -Pk "$BACKUP_DIR" | awk 'NR == 2 {print $4}')"
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log "Quellgroesse: $((source_kb / 1024)) MB"
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log "Freier Speicher am Backup-Ziel: $((free_kb / 1024)) MB"
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log "Geschaetzter Mindestbedarf: $((required_kb / 1024)) MB"
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if (( free_kb < required_kb )); then
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log "FEHLER: Zu wenig freier Speicher in $BACKUP_DIR."
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return 1
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fi
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}
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check_backup_dir_location() {
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case "$BACKUP_DIR" in
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"$SCRIPT_DIR"|"$SCRIPT_DIR"/*)
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log "FEHLER: BACKUP_DIR darf nicht innerhalb des Projektverzeichnisses liegen."
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log "Projektverzeichnis: $SCRIPT_DIR"
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log "Backup-Verzeichnis: $BACKUP_DIR"
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return 1
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;;
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esac
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}
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trap on_error ERR
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trap on_exit EXIT
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########################################
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# Vorbedingungen
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########################################
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cd "$SCRIPT_DIR"
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require_command docker
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require_command tar
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require_command gzip
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require_command sshpass
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require_command sftp
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check_backup_dir_location
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check_free_space
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########################################
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# Docker stoppen
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########################################
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cd "$SCRIPT_DIR"
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echo "Stoppe Docker..."
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log "Stoppe Docker..."
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docker compose down
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DOCKER_STOPPED=true
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########################################
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# Archiv erstellen
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########################################
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echo "Erstelle Backup..."
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log "Erstelle Backup..."
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tar \
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--same-owner \
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--preserve-permissions \
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-czpf "/tmp/${BACKUP_FILE}" \
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-czpf "$BACKUP_PATH" \
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-C "$(dirname "$SCRIPT_DIR")" \
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"$DIR_NAME"
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@@ -106,27 +282,28 @@ tar \
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# Docker starten
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########################################
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echo "Starte Docker..."
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docker compose up -d
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start_docker_if_needed
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########################################
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# Upload
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########################################
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echo "Upload nach ${SFTP_HOST}..."
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log "Upload nach ${SFTP_HOST}:${SFTP_REMOTE_DIR}..."
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sshpass -p "$SFTP_PASS" sftp \
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-oPort="$SFTP_PORT" \
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-P "$SFTP_PORT" \
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-oBatchMode=no \
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-oStrictHostKeyChecking=no \
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-oServerAliveInterval=30 \
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-oServerAliveCountMax=10 \
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"${SFTP_USER}@${SFTP_HOST}" << EOF
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cd ${SFTP_REMOTE_DIR}
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put /tmp/${BACKUP_FILE}
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cd "${SFTP_REMOTE_DIR}"
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put "${BACKUP_PATH}" "${BACKUP_FILE}.part"
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rename "${BACKUP_FILE}.part" "${BACKUP_FILE}"
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bye
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EOF
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echo "Upload erfolgreich."
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log "Upload erfolgreich."
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########################################
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# Erfolgsmail
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@@ -134,13 +311,5 @@ echo "Upload erfolgreich."
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send_success_mail
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########################################
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# Aufräumen
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########################################
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rm -f "/tmp/${BACKUP_FILE}"
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echo "Backup beendet: $(date)"
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exec 1>&-
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exec 2>&-
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exit 0
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SUCCESS=true
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log "Backup beendet: $(date)"
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