Initial commit of MyWorkspace - contains multiple projects and global workspace configuration

BackupScript/example.sh

@@ -0,0 +1,124 @@
+#!/bin/bash
+set -euo pipefail
+
+SCRIPT_NAME=$(basename "$0")
+log() {
+  echo "[$(date '+%Y-%m-%d %H:%M:%S')] $SCRIPT_NAME: $*" >&2
+}
+
+cd / || exit 1
+
+#UBUNTU_DEST="/mnt/Backup/Ubuntu"
+UBUNTU_DEST="/mnt/Backup/Ubuntu/Backups"
+CONTENT_SRC="/mnt/Content"
+CONTENT_DEST="/mnt/Backup"
+
+# helper wrapper: run rsync with low CPU and low I/O priority
+run_rsync() {
+  local label="$1"
+  shift
+  log "Starting low‑priority rsync ($label)"
+  nice -n 19 ionice -c 3 rsync -avHAX --delete "$@"
+}
+
+# Helper function: Run a command with low CPU and I/O priority
+run_low_priority() {
+    local label="$1"
+    shift
+    log "Starting low-priority $label..."
+    nice -n 19 ionice -c 3 "$@"
+}
+
+# Function to manage backup lifecycle - keep dailies for the past week, keep weeklies for the past month, keep montlies for 6 months.
+manage_backups() {
+    #local dir="/mnt/Backup/Ubuntu/Backups" - use UBUNTU_DEST
+    log "Managing backups in $dir..."
+
+    # Create the directory if it doesn't exist
+    [ ! -d "$UBUNTU_DEST" ] && sudo mkdir -p "$UBUNTU_DEST"
+
+    # List all .tgz files and sort them by modification time (oldest first)
+    for backup_file in $(sudo ls -1 $UBUNTU_DEST/*.tgz | sort --key=1.2 --reverse); do
+        filename=$(basename "$backup_file")
+        timestamp=$(echo "$filename" | cut -d'-' -f3- | cut -d '.' -f1)
+
+        # Calculate age in days
+        mtime=$(stat -c %Y "$backup_file")
+        age=$(( ($(date +%s) - $mtime) / (3600 * 24) ))
+
+        # Extract day, month, and weekday from timestamp
+        day=$(date -d "@$timestamp" +%d)
+        month=$(date -d "@$timestamp" +%m)
+        weekday=$(date -d "@$timestamp" +%w)
+
+        # Check if backup is less than a week old (daily retention)
+        if [ $age -lt 7 ]; then
+            log "Backup $filename is less than a week old. Keeping."
+            continue
+        fi
+
+        # Check for weekly backups on Sundays within the last month
+        if [ $weekday == '0' ]; then
+            current_month=$(date +%m)
+            months_since=$(( (current_month - $month) % 12 ))
+            if [ $months_since -lt 1 ]; then
+                log "Backup $filename is a weekly backup on Sunday within the last month. Keeping."
+                continue
+            fi
+        fi
+
+        # Check for monthly backups on first day of the month within six months
+        if [ $day == '01' ]; then
+            current_month=$(date +%m)
+            months_since=$(( (current_month - $month) % 12 ))
+            if [ $months_since -lt 6 ]; then
+                log "Backup $filename is a monthly backup on the first day within six months. Keeping."
+                continue
+            fi
+        fi
+
+        # Delete backups older than retention criteria
+        log "Deleting backup: $filename"
+        sudo rm "$backup_file"
+    done
+}
+
+# --- 1. Backup / → /mnt/Backup/Ubuntu (fast, configs + Docker) ---
+
+log "Starting tar backup of / → $UBUNTU_DEST (excluding /mnt and pseudo‑dirs)"
+
+sudo mkdir -p "$UBUNTU_DEST"
+
+# no longer using rsync to backup main filesystem as single file backup using compression works better with remote sync - does not interfere with syncthing state files and folders at the destination
+#run_rsync "Ubuntu configs & Docker" \
+#  --exclude-from=/etc/backup-excludes/ubuntu.exclude \
+#  / "$UBUNTU_DEST"/
+
+# Create a compressed tar backup with timestamp in the filename
+timestamp=$(date +%Y%m%d-%H%M%S)
+tar_output="$UBUNTU_DEST/backup-full-$timestamp.tgz"
+
+log "Starting backup of /..."
+run_low_priority "Ubuntu full backup" \
+    tar -czf "$tar_output" --exclude-from=/etc/backup-excludes/ubuntu.exclude /
+
+
+log "Finished / → $UBUNTU_DEST backup."
+
+# --- 2. Backup /mnt/Content → /mnt/Backup (large media‑heavy sync) ---
+
+if [ -d "$CONTENT_SRC" ]; then
+  log "Starting rsync of $CONTENT_SRC → $CONTENT_DEST (with excludes)"
+
+  # using --delete-before to ensure space is freed at destination for new and updated files
+  run_rsync "Content -> Backup (media)" \
+    --delete-before
+    --exclude-from=/etc/backup-excludes/content.exclude \
+    "$CONTENT_SRC"/ "$CONTENT_DEST"/
+
+  log "Finished $CONTENT_SRC → $CONTENT_DEST backup."
+else
+  log "WARNING: $CONTENT_SRC not found or not a directory; skipping."
+fi
+
+log "All backups completed."