Backup Docker Containers

#!/bin/bash

# Only Update the 4 Variables Below #
backupDirectory=/home/kevin/Docker
backupDestination=/media/Backup/Containers
tmpDirectory=/media/Backup/tmp
skipDirs="Portainer Netdata" # (Space-Separated)

##################################
# DO NOT UPDATE THE SCRIPT BELOW #
##################################

# Loop through Container Directories
for dir in "$backupDirectory"/*/; do
    dir_name=$(basename "$dir")

    # Skip Listed Directories
    if [[ " $skipDirs " =~ " $dir_name " ]]; then
        echo "Skipping $dir_name (owned by root)"
        continue
    fi

    # Get Start Time
    start_time=$(date +%s)

    # Copy Container Directory to Tmp Location
    echo "Copying $dir_name to temporary directory..."
    cp -r "$dir" "$tmpDirectory/"

    # Compress the Copied Container Contents
    echo "Compressing $dir_name..."
    tar -czf "$backupDestination/$dir_name-$(date +%Y%m%d).tar.gz" -C "$tmpDirectory" "$dir_name"

    # Remove the Tmp Copy
    rm -rf "$tmpDirectory/$dir_name"

    # Get End Time
    end_time=$(date +%s)

    # Total Time in Seconds
    elapsed_time=$((end_time - start_time))

    # Calculate Hours, Minutes, Seconds
    hours=$((elapsed_time / 3600))
    minutes=$(( (elapsed_time % 3600) / 60 ))
    seconds=$((elapsed_time % 60))

    # Display Console Message
    echo "Backed up $dir_name in ${hours} Hours ${minutes} Minutes ${seconds} Seconds"
fi
done

# Display Final Console Message
echo "Backup Completed!"