commit 663a36b7daaee8970ad9d790a0fb03caff990500
Author: Thorsten <thorsten.seine@gmail.com>
Date:   Sun Mar 29 12:42:13 2026 +0200

    first commit

diff --git a/.gitignore b/.gitignore
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+config.conf.own
diff --git a/README.md b/README.md
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+# Docker Compose Auto-Updater
+
+Dieses Script überprüft mehrere Docker-Compose-Stacks auf Image-Updates und aktualisiert diese automatisch.
+
+## 🚀 Features
+
+- 🔄 Stack-basiertes Update
+- 🧪 Dry-Run Modus
+- 📲 ntfy Benachrichtigungen
+- ⏭️ Exclude-Liste für Services
+
+---
+
+## 📂 Voraussetzungen
+
+- Docker + Docker Compose (v2)
+- Bash
+- Optional: ntfy Server
+
+---
+
+## ⚙️ Konfiguration (`config.conf`)
+
+```bash
+# Pfad zu deinen Compose-Files
+COMPOSE_DIR="/pfad/zu/deinen/stacks"
+# Dateimuster
+COMPOSE_PATTERN="docker-compose.yml"
+
+# Exclude Container
+EXCLUDE_SERVICES=(
+  "example_container_1"
+  "example_container_2"
+)
+
+# Exclude Stack
+EXCLUDE_STACKS=(
+  "example_stack_1"
+  "example_stack_2"
+)
+
+# Verhalten bei gestoppten Containern
+UPDATE_STOPPED=true      # Image aktualisieren
+START_STOPPED=false      # danach NICHT starten
+
+# Dry Run (true/false)
+DRY_RUN=false
+
+# Logging
+LOG_FILE="/pfad/zum/log/update.log"
+LOG_LEVEL="INFO"
+
+# ntfy
+NTFY_ENABLED=true
+NTFY_TITLE="Docker Update ($(hostname))"
+NTFY_TOKEN="DEIN_TOKEN"
+NTFY_URL="https://ntfy.example.com/topic"
+NTFY_TAGS="docker,update"
+NTFY_ONLY_ON_CHANGES=false
+# Versions Nr. der Container in der NTFY Nachricht anzeigen (true/false)
+SHOW_VERSIONS=true
+```
+
+---
+
+## ▶️ Nutzung
+
+```bash
+chmod +x script.sh
+./script.sh
+```
+
+---
+
+## 🧠 Funktionsweise
+
+1. Alle `docker-compose.yml` Dateien werden gefunden
+2. Alphabetisch sortiert
+3. Jeder Stack wird geprüft:
+   - Image wird gepullt
+   - Vergleich: Container Image-ID vs. aktuelles Image
+4. Wenn ein Service ein Update hat:
+   - kompletter Stack wird neu deployed
+
+---
+
+## 🔔 ntfy Prioritäten
+
+| Zustand              | Priorität |
+|----------------------|----------|
+| ✔️ Keine Updates     | 1 |
+| 🔄 Updates vorhanden | 3 |
+| ❌ Fehler            | 5 |
+
+---
+
+## 📄 Beispiel Ausgabe
+
+```
+→ Prüfe Stack: homepage
+   ├─ dockerproxy (image)
+   └─ homepage (image)
+
+→ Prüfe Stack: app
+   ├─ db (image)
+      ⬆️ UPDATE
+         alt: sha256:abc
+         neu: sha256:def
+   └─ web (image)
+   🔄 Stack wird neu deployt
+```
+
+---
+
+## ⚠️ Hinweise
+
+Wird in einem Stack ein Container aktualisiert, wird anschließend der gesamte Stack neu gestartet, sofern er mehr als einen Container enthält. Dadurch wird sichergestellt, dass alle Abhängigkeiten wieder gemäß der `docker-compose.yml` ausgeführt werden.
+
+
+---
+
+## 🧪 Dry Run
+
+```bash
+DRY_RUN=true
+```
+
+→ zeigt nur, was passieren würde
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diff --git a/composeupdater.png b/composeupdater.png
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diff --git a/config.conf b/config.conf
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+# Pfad zu deinen Compose-Files
+COMPOSE_DIR="/pfad/zu/deinen/stacks"
+
+# Dateimuster
+COMPOSE_PATTERN="docker-compose.yml"
+
+# Exclude Container
+EXCLUDE_SERVICES=(
+  "example_container_1"
+  "example_container_2"
+)
+
+# Exclude Stack
+EXCLUDE_STACKS=(
+  "example_stack_1"
+  "example_stack_2"
+)
+
+# Verhalten bei gestoppten Containern
+UPDATE_STOPPED=true      # Image aktualisieren
+START_STOPPED=false      # danach NICHT starten
+
+# Dry Run (true/false)
+DRY_RUN=false
+
+# Logging
+LOG_FILE="/pfad/zum/log/update.log"
+LOG_LEVEL="INFO"   # DEBUG=sehr detailliert, INFO=Standard, WARN=nur wichtige Hinweise/Updates, ERROR=nur Fehler
+
+# ntfy
+NTFY_ENABLED=true
+NTFY_TITLE="Docker Update ($(hostname))"                  # ntfy Titel (frei definierbar)
+NTFY_TOKEN="DEIN_TOKEN"
+NTFY_URL="https://ntfy.example.com/topic"
+NTFY_TAGS="docker,update"
+NTFY_ONLY_ON_CHANGES=false
+# Versions Nr. anzeigen (true/false)
+SHOW_VERSIONS=true
+
+
+
diff --git a/shell_docker_compose_update.sh b/shell_docker_compose_update.sh
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+#!/bin/bash
+
+set -euo pipefail
+
+BASE_DIR="$(dirname "$0")"
+source "$BASE_DIR/config.conf"
+
+mkdir -p "$(dirname "$LOG_FILE")"
+
+LOG_LEVEL="${LOG_LEVEL:-INFO}"
+
+level_to_int() {
+    case "$1" in
+        DEBUG) echo 0 ;;
+        INFO)  echo 1 ;;
+        WARN)  echo 2 ;;
+        ERROR) echo 3 ;;
+        *)     echo 1 ;;
+    esac
+}
+
+should_log() {
+    [ "$(level_to_int "$1")" -ge "$(level_to_int "$LOG_LEVEL")" ]
+}
+
+log() {
+    local level="$1"
+    shift
+    local msg="$*"
+
+    if should_log "$level"; then
+        echo "$(date '+%Y-%m-%d %H:%M:%S') | $level | $msg" | tee -a "$LOG_FILE"
+    fi
+}
+
+# =============================
+# Log begrenzen
+# =============================
+
+if [ -f "$LOG_FILE" ]; then
+    line_count=$(wc -l < "$LOG_FILE")
+    if [ "$line_count" -gt 1000 ]; then
+        tail -n 1000 "$LOG_FILE" > "$LOG_FILE.tmp" && mv "$LOG_FILE.tmp" "$LOG_FILE"
+    fi
+fi
+
+# =============================
+# Helper
+# =============================
+
+is_excluded() {
+    local svc="$1"
+    for ex in "${EXCLUDE_SERVICES[@]}"; do
+        [[ "$svc" == "$ex" ]] && return 0
+    done
+    return 1
+}
+
+is_stack_excluded() {
+    local stack="$1"
+    for ex in "${EXCLUDE_STACKS[@]}"; do
+        [[ "$stack" == "$ex" ]] && return 0
+    done
+    return 1
+}
+
+get_image() {
+    local svc="$1"
+    docker compose config | awk "/^  $svc:/,/image:/" | grep image | head -n1 | awk '{print $2}'
+}
+
+get_container_image_id() {
+    local svc="$1"
+    local cid
+
+    cid=$(docker compose ps -q "$svc" 2>/dev/null || true)
+    [ -z "$cid" ] && echo "" && return
+
+    docker inspect -f '{{.Image}}' "$cid" 2>/dev/null || echo ""
+}
+
+get_local_image_id() {
+    local image="$1"
+    docker image inspect -f '{{.Id}}' "$image" 2>/dev/null || echo ""
+}
+
+get_container_image_ref() {
+    local svc="$1"
+    local cid
+
+    cid=$(docker compose ps -q "$svc" 2>/dev/null || true)
+    [ -z "$cid" ] && echo "none" && return
+
+    docker inspect -f '{{.Config.Image}}' "$cid" 2>/dev/null || echo "unknown"
+}
+
+get_local_image_digest() {
+    local image="$1"
+    docker inspect --format='{{index .RepoDigests 0}}' "$image" 2>/dev/null || echo "unknown"
+}
+
+run_cmd() {
+    if [ "$DRY_RUN" = true ]; then
+        log DEBUG "[DRY RUN] $*"
+    else
+        eval "$@"
+    fi
+}
+
+send_ntfy() {
+    local msg="$1"
+    local prio="$2"
+
+    curl -s \
+      -H "Authorization: Bearer $NTFY_TOKEN" \
+      -H "Title: $NTFY_TITLE" \
+      -H "Priority: $prio" \
+      -H "Tags: $NTFY_TAGS" \
+      -d "$msg" \
+      "$NTFY_URL" > /dev/null || true
+}
+
+# =============================
+# Start
+# =============================
+
+log INFO "==== Docker Compose Update gestartet ===="
+
+notify_stacks_updated=()
+notify_excluded_updates=()
+error_flag=false
+
+cd "$COMPOSE_DIR"
+
+# =============================
+# Sortierung
+# =============================
+
+while IFS= read -r -d '' file; do
+
+    dir=$(dirname "$file")
+    stack=$(basename "$dir")
+
+    if is_stack_excluded "$stack"; then
+        log INFO "→ Stack $stack übersprungen (excluded)"
+        continue
+    fi
+
+    log INFO ""
+    log INFO "→ Prüfe Stack: $stack"
+
+    cd "$dir"
+
+    mapfile -t services < <(docker compose config --services)
+
+    total_services=${#services[@]}
+    current_index=0
+
+    stack_updated=false
+    changed_services=()
+    version_report=()
+
+    for svc in "${services[@]}"; do
+
+        current_index=$((current_index + 1))
+
+        if [ "$current_index" -eq "$total_services" ]; then
+            prefix="└─"
+        else
+            prefix="├─"
+        fi
+
+        image=$(get_image "$svc")
+
+        if [ -z "$image" ]; then
+            log WARN "   $prefix $svc → kein Image"
+            continue
+        fi
+
+        if is_excluded "$svc"; then
+            docker pull "$image" >/dev/null 2>&1 || true
+            notify_excluded_updates+=("$stack/$svc")
+            log INFO "   $prefix $svc (excluded)"
+            continue
+        fi
+
+        log INFO "   $prefix $svc ($image)"
+
+        before_id=$(get_container_image_id "$svc")
+        before_ref=$(get_container_image_ref "$svc")
+
+        if ! docker pull "$image" >/dev/null 2>&1; then
+            log ERROR "   $prefix ❌ Pull fehlgeschlagen"
+            error_flag=true
+            continue
+        fi
+
+        after_id=$(get_local_image_id "$image")
+        after_digest=$(get_local_image_digest "$image")
+
+        if [ "$before_id" != "$after_id" ] && [ -n "$after_id" ]; then
+            stack_updated=true
+            changed_services+=("$svc")
+
+            if [ "$SHOW_VERSIONS" = true ]; then
+                log WARN "      ⬆️ UPDATE"
+                log INFO "         alt: $before_ref"
+                log INFO "         neu: $after_digest"
+                version_report+=("$svc: ${before_ref##*@} → ${after_digest##*@}")
+            else
+                log WARN "      ⬆️ UPDATE"
+            fi
+        fi
+    done
+
+    # =============================
+    # Update Logik
+    # =============================
+
+    if [ "$stack_updated" = true ]; then
+
+        if [ "$total_services" -eq 1 ]; then
+            svc="${services[0]}"
+
+            log WARN "   🔄 Einzelcontainer-Update: $svc"
+
+            if ! run_cmd docker compose up -d "$svc" >/dev/null 2>&1; then
+                log ERROR "   ❌ Update fehlgeschlagen"
+                error_flag=true
+            else
+                log INFO "   ✔️ Container erfolgreich aktualisiert"
+                notify_stacks_updated+=("$stack ($svc)")
+            fi
+
+        else
+            log WARN "   🔄 Stack wird neu deployt (Trigger: ${changed_services[*]})"
+
+            if ! run_cmd docker compose up -d --remove-orphans >/dev/null 2>&1; then
+                log ERROR "   ❌ Stack Update fehlgeschlagen"
+                error_flag=true
+            else
+                log INFO "   ✔️ Stack erfolgreich aktualisiert"
+                notify_stacks_updated+=("$stack (${changed_services[*]})")
+            fi
+        fi
+
+    else
+        log DEBUG "   ✔️ Keine Updates"
+    fi
+
+    cd "$COMPOSE_DIR"
+
+done < <(find . -name "$COMPOSE_PATTERN" -print0 | sort -z)
+
+# =============================
+# Notification
+# =============================
+
+if [ "$NTFY_ENABLED" = true ]; then
+
+    msg="Docker Compose Update Report"
+
+    if [ ${#notify_stacks_updated[@]} -gt 0 ]; then
+        msg+=$'\n\n🔄 Aktualisierte Stacks'
+        for s in "${notify_stacks_updated[@]}"; do
+            msg+=$'\n - '"$s"
+        done
+    fi
+
+    if [ ${#notify_excluded_updates[@]} -gt 0 ]; then
+        msg+=$'\n\n⏭️ Excluded (Update verfügbar)'
+        for s in "${notify_excluded_updates[@]}"; do
+            msg+=$'\n - '"$s"
+        done
+    fi
+
+    # Priority fix
+    if [ "$error_flag" = true ]; then
+        msg+=$'\n\n❗ Fehler sind aufgetreten – Logs prüfen'
+        PRIORITY=5
+    elif [ ${#notify_stacks_updated[@]} -gt 0 ]; then
+        PRIORITY=3
+    else
+        PRIORITY=1
+    fi
+
+    if [ ${#notify_stacks_updated[@]} -eq 0 ] && \
+       [ ${#notify_excluded_updates[@]} -eq 0 ]; then
+        msg+=$'\n\n✔️ Alles aktuell'
+    fi
+
+    if [ "$NTFY_ONLY_ON_CHANGES" = false ] || \
+       [ ${#notify_stacks_updated[@]} -gt 0 ] || \
+       [ ${#notify_excluded_updates[@]} -gt 0 ] || \
+       [ "$error_flag" = true ]; then
+
+        send_ntfy "$msg" "$PRIORITY"
+        log INFO "ntfy Nachricht gesendet (prio=$PRIORITY)"
+    else
+        log INFO "keine Änderungen, keine ntfy Nachricht"
+    fi
+fi
+
+log INFO "==== Update beendet ===="