add prune cache support

Dockerfile

@@ -2,7 +2,7 @@
 FROM debian:bookworm-slim
 
 # Define the version of Rustic to install as a build argument
-ARG RUSTIC_VERSION=v0.10.2
+ARG RUSTIC_VERSION=v0.10.3
 
 # Set DEBIAN_FRONTEND to noninteractive to suppress warnings
 ENV DEBIAN_FRONTEND=noninteractive
@@ -11,8 +11,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     cron bash curl tzdata ca-certificates && \
     rm -rf /var/lib/apt/lists/*
 
-# RUN curl -L https://github.com/rustic-rs/rustic/releases/download/${RUSTIC_VERSION}/rustic-${RUSTIC_VERSION}-x86_64-unknown-linux-musl.tar.gz \
-RUN curl -L https://github.com/rustic-rs/rustic/releases/download/v0.10.2/rustic-v0.10.2-1-g189b17c-x86_64-unknown-linux-musl.tar.gz \
+RUN curl -L https://github.com/rustic-rs/rustic/releases/download/${RUSTIC_VERSION}/rustic-${RUSTIC_VERSION}-aarch64-unknown-linux-musl.tar.gz \
+# RUN curl -L https://github.com/rustic-rs/rustic/releases/download/v0.10.2/rustic-v0.10.2-1-g189b17c-x86_64-unknown-linux-musl.tar.gz \
     | tar -xvzf - -C /usr/local/bin rustic && \
     \
     curl -o /usr/local/bin/mc https://dl.min.io/client/mc/release/linux-amd64/mc && \
@@ -28,6 +28,7 @@ COPY backup.sh /usr/local/bin/backup.sh
 COPY restore.sh /usr/local/bin/restore.sh
 COPY start.sh /start.sh
 COPY prune.sh /usr/local/bin/prune.sh
-RUN chmod +x /usr/local/bin/backup.sh /usr/local/bin/restore.sh /start.sh /usr/local/bin/prune.sh
+COPY cache-cleanup.sh /usr/local/bin/cache-cleanup.sh
+RUN chmod +x /usr/local/bin/backup.sh /usr/local/bin/restore.sh /start.sh /usr/local/bin/prune.sh /usr/local/bin/cache-cleanup.sh
 
 CMD ["/start.sh"]

backup.sh

@@ -78,6 +78,13 @@ if [ $STATUS -ne 0 ]; then
     exit 1
 fi
 echo "$(date): Backup successfully completed."
+
+# --- Optional Cache Cleanup ---
+if [ -n "$CACHE_CLEANUP_DAYS" ] && [ "$CACHE_CLEANUP_DAYS" -gt 0 ]; then
+    echo "$(date): --> Running cache cleanup..."
+    /usr/local/bin/cache-cleanup.sh
+fi
+
 echo "$(date): --- ALL BACKUP TASKS COMPLETED SUCCESSFULLY. ---"
 
 # ----------------------------------------------------

cache-cleanup.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+# cache-cleanup.sh: Clean up old cache files to free disk space.
+
+set -e
+
+send_notification() {
+    local status=$1
+    local message=$2
+
+    if [ -n "$N8N_WEBHOOK_URL" ]; then
+        curl -X POST -H "Content-Type: application/json" \
+            -d "{\"hostname\": \"${HOSTNAME}\", \"status\": \"${status}\", \"message\": \"${message}\"}" \
+            "${N8N_WEBHOOK_URL}" --silent --output /dev/null || echo "$(date): WARNING: Failed to send notification to n8n."
+    fi
+}
+
+trap 'send_notification "failure" "Cache cleanup script failed at line $LINENO. Check container logs for details."' ERR
+
+# --- Configuration ---
+CACHE_DIR="/root/.cache/rustic"
+CLEANUP_DAYS=${CACHE_CLEANUP_DAYS:-7}
+
+echo "$(date): --> Starting cache cleanup process..."
+echo "$(date): Cache directory: ${CACHE_DIR}"
+echo "$(date): Removing files not accessed for more than ${CLEANUP_DAYS} day(s)..."
+
+# Check if cache directory exists
+if [ ! -d "${CACHE_DIR}" ]; then
+    echo "$(date): Cache directory does not exist. Skipping cleanup."
+    exit 0
+fi
+
+# Get initial size
+INITIAL_SIZE=$(du -sh "${CACHE_DIR}" 2>/dev/null | cut -f1)
+echo "$(date): Initial cache size: ${INITIAL_SIZE}"
+
+# Find and delete files not accessed for more than CLEANUP_DAYS
+# Using -atime (access time) based on the user's successful command
+DELETED_COUNT=$(find "${CACHE_DIR}" -type f -atime +${CLEANUP_DAYS} -delete -print | wc -l)
+
+# Get final size
+FINAL_SIZE=$(du -sh "${CACHE_DIR}" 2>/dev/null | cut -f1 || echo "0K")
+echo "$(date): Final cache size: ${FINAL_SIZE}"
+echo "$(date): Deleted ${DELETED_COUNT} old cache file(s)."
+
+if [ ${DELETED_COUNT} -gt 0 ]; then
+    CLEANUP_MESSAGE="Cache cleanup completed. Removed ${DELETED_COUNT} file(s). Final cache size: ${FINAL_SIZE}"
+    echo "$(date): ${CLEANUP_MESSAGE}"
+    send_notification "success" "${CLEANUP_MESSAGE}"
+else
+    echo "$(date): No old cache files found to delete."
+fi

docker-compose.example.yml

@@ -35,6 +35,11 @@ services:
       # Optional: Max random delay in seconds to wait before starting the backup.
       - RANDOM_DELAY_SECONDS=3600
 
+      # Optional: Cache cleanup configuration (days to keep cache files).
+      # Files not accessed for longer than this period will be deleted.
+      # Set to 0 or leave empty to disable cache cleanup.
+      - CACHE_CLEANUP_DAYS=7
+
       # Optional: Webhook URL for n8n to send notifications (for success and failure).
       - N8N_WEBHOOK_URL="http://your-n8n-instance/webhook/your-id"
 

prune.sh

@@ -42,5 +42,11 @@ rustic prune
 echo "$(date): --> Running integrity check (check)..."
 rustic check ${CHECK_ARGS}
 
+# --- Optional Cache Cleanup ---
+if [ -n "$CACHE_CLEANUP_DAYS" ] && [ "$CACHE_CLEANUP_DAYS" -gt 0 ]; then
+    echo "$(date): --> Running cache cleanup..."
+    /usr/local/bin/cache-cleanup.sh
+fi
+
 echo "$(date): --- MAINTENANCE COMPLETED SUCCESSFULLY. ---"
 send_notification "success" "Rustic maintenance (forget/prune/check) completed successfully."

start.sh

@@ -26,6 +26,7 @@ VARS_TO_SANITIZE=(
     "BACKUP_PATHS"
     "PRUNE_POLICY"
     "CHECK_ARGS"
+    "CACHE_CLEANUP_DAYS"
 )
 
 for VAR_NAME in "${VARS_TO_SANITIZE[@]}"; do