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Intelligent bash scripts to analyze, monitor, and maintain Docker resources. Solve the 5 eternal Docker problems: identify volumes in use, track space consumption, detect ownership, find orphans, and safely cleanup resources with audit logging.

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Docker Maintainer

License Shell Docker

⚠️ Early Release - Community Testing Needed This project was just released publicly (v0.1). While it has been tested in development environments, it needs real-world validation from the community. Please test thoroughly in non-production environments first and report any issues you encounter. Feedback, bug reports, and contributions are highly welcome!

💡 Better name ideas? If you have suggestions for a more descriptive project name, feel free to open an issue or discussion.

A comprehensive suite of intelligent bash scripts to analyze, monitor, and maintain Docker resources efficiently. Never wonder which volumes are in use, who owns them, or what can be safely deleted again.

The 5 Eternal Docker Problems (Solved!)

  1. Which volumes are in use? - Hard to determine which volumes are actively mounted by containers
  2. Which volumes consume the most space? - docker system df provides limited information
  3. Who owns these space-consuming volumes? - Volume ownership is not obvious from labels
  4. Which Docker resources are orphaned? - Dangling volumes, images, stopped containers, unused networks accumulate
  5. Which Docker resources can be safely deleted? - Fear of breaking running services prevents cleanup

This project solves all five problems with a focus on safety, usability, and efficiency.

Features

  • Dynamic Resource Querying - Interactive exploration of Docker volumes, images, containers, and networks
  • Comprehensive Space Analysis - Detailed insights into disk usage with breakdown by resource type
  • Safe Resource Cleanup - Three deletion modes (conservative, standard, aggressive) with comprehensive safety validations
  • Ownership Detection - Automatically identifies resource owners from Docker Compose labels
  • Protection Patterns - Configurable whitelist with wildcard support to protect critical resources
  • Audit Logging - Complete audit trail of all deletion operations
  • Multiple Output Formats - Human-friendly tables, JSON for automation
  • Colored Output - Green for safe, yellow for warnings, red for dangerous operations

Why Docker Maintainer?

Who Is This For?

Docker Maintainer is designed for:

  • DevOps Engineers - Managing Docker resources on development and staging servers
  • System Administrators - Maintaining Docker hosts with multiple projects
  • CI/CD Pipelines - Automated cleanup in continuous integration environments
  • Teams using Docker Compose - Multi-project environments with label-based ownership
  • Anyone who prefers scriptable CLI tools - Over interactive TUIs or web interfaces

When to Use This vs. Alternatives

Use Docker Maintainer when you need:

  • ✅ Scriptable automation - Integrate into cron jobs, CI/CD pipelines, or custom workflows
  • ✅ Safety-first approach - Multiple protection layers and dry-run previews
  • ✅ Ownership tracking - Identify which Docker Compose project owns each resource
  • ✅ Lightweight solution - Pure bash with minimal dependencies (just docker + jq)
  • ✅ Audit trail - Complete logging of all deletion operations
  • ✅ Server environments - Works great over SSH without GUI

Consider alternatives like lazydocker when you want:

  • 🖥️ Interactive TUI with real-time monitoring and navigation
  • 📊 Visual dashboards and graphs
  • 🖱️ Mouse-driven interface for local development

Consider native Docker commands when:

  • 🎯 You need a quick one-liner: docker system prune -a
  • 🔧 You're comfortable with raw Docker CLI and manual safety checks

What Makes This Different?

  1. Safety Without Compromise - Protection patterns, running container checks, dry-run mode, and audit logs work together to prevent accidents
  2. Ownership Intelligence - Automatically parses Docker Compose labels to answer "who owns this volume?"
  3. Three Deletion Modes - Conservative, standard, and aggressive modes for different risk tolerances
  4. Built for Automation - JSON output, exit codes, and --yes flag make CI/CD integration seamless
  5. Zero Runtime Dependencies - No Python, Go, or Node.js required - just bash, docker, and jq

Comparison Matrix

Feature Docker Maintainer lazydocker Native Docker CLI
Interface CLI scripts Interactive TUI CLI commands
Automation-friendly ✅ Excellent ❌ No ⚠️ Limited
Safety validations ✅ Multi-layer ⚠️ Basic ❌ None
Ownership tracking ✅ Docker Compose ❌ No ❌ No
Audit logging ✅ Built-in ❌ No ❌ No
Protection patterns ✅ Wildcards ❌ No ❌ No
Real-time monitoring ❌ No ✅ Yes ❌ No
Installation Copy scripts Single binary Pre-installed
Learning curve Low Low Medium
Best for Servers & automation Local development Quick cleanups

Bottom line: Docker Maintainer fills the gap between quick-and-dirty docker prune commands and full-featured monitoring tools. It's the safe, scriptable choice for teams managing Docker resources across multiple projects.

Similar Projects

Docker Maintainer fills a specific niche between simple cleanup scripts and full-featured management platforms. Here's how it compares:

Cleanup-Focused Tools (Direct Alternatives)

Why choose Docker Maintainer over these?

  • ✅ Ownership tracking via Docker Compose labels
  • ✅ Three safety modes (conservative/standard/aggressive)
  • ✅ Comprehensive audit logging
  • ✅ Protection patterns with wildcards
  • ✅ Better automation for CI/CD

Visual Management Tools

  • lazydocker - Excellent TUI for real-time monitoring and management
  • Portainer - Full-featured web GUI for Docker/Kubernetes
  • Doku - Web dashboard for disk usage

When to use these instead?

  • 🖥️ You prefer interactive TUI (lazydocker)
  • 🌐 You need web GUI with team access (Portainer)
  • 📊 You want real-time monitoring dashboards

Native Docker Commands

Docker includes built-in cleanup commands:

docker system df -v
docker system prune
docker volume prune
docker image prune
docker volume ls -qf dangling=true
docker volume rm $(docker volume ls -qf dangling=true)

Why use Docker Maintainer instead of native commands?

  • ❌ Native commands lack safety validations
  • ❌ No ownership tracking or protection patterns
  • ❌ No audit logging
  • ❌ Limited filtering and reporting capabilities
  • ✅ Docker Maintainer adds multiple safety layers on top of native commands

Installation

Prerequisites

Required tools:

  • Docker - Docker Engine 20.10+ and CLI
  • jq - JSON parsing and manipulation
  • bash - Shell scripting (version 4.0+)
  • coreutils - sort, awk, grep, column, numfmt, du, df

Install prerequisites on Ubuntu/Debian:

sudo apt-get update
sudo apt-get install -y docker.io jq coreutils

Install prerequisites on RHEL/CentOS/Fedora:

sudo dnf install -y docker jq coreutils

Setup

  1. Clone or download the repository:
git clone <repository-url> docker-maintainer
cd docker-maintainer
  1. Choose installation method:

Option A: System-wide installation (recommended)

sudo ./install.sh

This installs scripts to /usr/local/bin and creates convenient command aliases:

  • docker-space (instead of ./docker-space.sh)
  • docker-volumes (instead of ./docker-volumes.sh)
  • docker-orphans (instead of ./docker-orphans.sh)
  • docker-clean (instead of ./docker-clean.sh)

You can then run commands from any directory without the ./ prefix or .sh extension.

To uninstall:

sudo ./install.sh --uninstall

Option B: Local usage

chmod +x docker-*.sh

Scripts must be run with ./ prefix (e.g., ./docker-space.sh) from the project directory.

  1. (Optional) Copy configuration file:
cp .docker-maintainer.conf ~/.docker-maintainer.conf
# Edit the configuration to protect your critical resources
  1. Verify Docker access:
docker ps
# If permission denied, add your user to docker group:
# sudo usermod -aG docker $USER
# Then log out and back in

Quick Start

Note: If you used system-wide installation (sudo ./install.sh), you can omit the ./ prefix and .sh extension (e.g., docker-space instead of ./docker-space.sh).

Analyze Your Docker Resources

# Get overall disk usage summary
./docker-space.sh

# List all volumes with sizes and ownership
./docker-volumes.sh --sort-by size

# Find all orphaned resources
./docker-orphans.sh

Safe Cleanup (Preview First!)

# ALWAYS preview what would be deleted first
./docker-clean.sh --dry-run

# Safe cleanup with confirmation
./docker-clean.sh --mode conservative

# Standard cleanup (balanced)
./docker-clean.sh

# Aggressive cleanup (maximum space reclamation)
./docker-clean.sh --mode aggressive

Usage

docker-space.sh - Space Usage Analyzer

Provides comprehensive disk space usage analysis across all Docker resources.

Basic Usage:

# Full space report
./docker-space.sh

# Show top 20 space consumers
./docker-space.sh --top 20

# JSON output for automation
./docker-space.sh --format json

# Show only reclaimable space
./docker-space.sh --reclaimable

Example Output:

DOCKER DISK USAGE SUMMARY
═════════════════════════════════════════════════════════════════

Total Docker Space:    47.8 GB
Reclaimable Space:     12.3 GB (25.7%)
Available on Disk:     128.4 GB

BREAKDOWN BY TYPE:
────────────────────────────────────────────────────────────────
TYPE              TOTAL      ACTIVE     RECLAIMABLE   COUNT
Images            18.2 GB    14.1 GB    4.1 GB        47
Containers        892 MB     645 MB     247 MB        23
Volumes           24.1 GB    19.2 GB    4.9 GB        18
Build Cache       4.5 GB     0 B        4.5 GB        156

TOP SPACE CONSUMERS:
────────────────────────────────────────────────────────────────
RESOURCE                        TYPE       SIZE      STATUS
old_db_backup                   volume     15.2 GB   dangling
postgres_data                   volume     8.4 GB    in-use
node:18-alpine                  image      3.8 GB    in-use

Options:

  • --top N - Show top N space consumers (default: 10)
  • --format [table|json] - Output format
  • --reclaimable - Show only reclaimable space
  • --help - Show help message

docker-volumes.sh - Volume Management

Analyze volumes with usage, ownership, and relationship information.

Basic Usage:

# List all volumes sorted by size
./docker-volumes.sh --sort-by size

# Show only volumes > 1GB
./docker-volumes.sh --min-size 1G

# Find volumes owned by specific project
./docker-volumes.sh --owner "myproject"

# List dangling volumes only
./docker-volumes.sh --dangling

Example Output:

VOLUME NAME           SIZE     OWNER              USED BY              STATUS
─────────────────────────────────────────────────────────────────────────────
postgres_data         8.4 GB   myapp-prod         myapp-db-1           IN USE
redis_cache           2.1 GB   myapp-prod         myapp-redis-1        IN USE
old_db_backup         15.2 GB  backup-service     <none>               DANGLING
uploads_vol           945 MB   cms-project        cms-web-1            IN USE

Options:

  • --sort-by [size|name|date] - Sort order (default: size)
  • --min-size SIZE - Filter by minimum size (e.g., 1G, 500M)
  • --owner PATTERN - Filter by owner pattern
  • --dangling - Show only dangling volumes
  • --format [table|json] - Output format
  • --help - Show help message

docker-orphans.sh - Orphan Resource Detector

Identify all orphaned and potentially removable resources across all resource types.

Basic Usage:

# Full orphan scan
./docker-orphans.sh

# Only volumes and images
./docker-orphans.sh --types volumes,images

# Containers stopped > 7 days
./docker-orphans.sh --container-age 7d

# Summary only (no details)
./docker-orphans.sh --summary

Example Output:

ORPHANED RESOURCES REPORT
═════════════════════════════════════════════════════════════════

DANGLING VOLUMES (4.9 GB reclaimable):
────────────────────────────────────────────────────────────────
NAME                  SIZE      AGE       LAST USED
old_db_backup         15.2 GB   47 days   never
temp_upload_vol       980 MB    12 days   never

DANGLING IMAGES (4.1 GB reclaimable):
────────────────────────────────────────────────────────────────
IMAGE ID      SIZE      CREATED
a1b2c3d4e5f6  1.8 GB    3 months ago
f6e5d4c3b2a1  1.2 GB    2 months ago

STOPPED CONTAINERS (247 MB reclaimable):
────────────────────────────────────────────────────────────────
NAME              IMAGE         STOPPED        SIZE
old-worker-1      worker:v1     45 days ago    128 MB
test-nginx-1      nginx:latest  30 days ago    119 MB

UNUSED NETWORKS:
────────────────────────────────────────────────────────────────
old_app_network (created 60 days ago)
test_network (created 21 days ago)

BUILD CACHE (4.5 GB reclaimable):
────────────────────────────────────────────────────────────────
156 cache entries, oldest: 4 months

SUMMARY:
Total Orphaned Resources: 12.7 GB
Safe to Delete: 9.4 GB
Needs Review: 3.3 GB

Options:

  • --types TYPE1,TYPE2 - Filter by types (volumes, images, containers, networks, cache)
  • --container-age DAYS - Age threshold (default: 30d, supports d/w/m/y)
  • --summary - Summary only, no details
  • --format [table|json] - Output format
  • --help - Show help message

docker-clean.sh - Safe Resource Cleaner

Safe deletion of Docker resources with comprehensive validations and three deletion modes.

IMPORTANT: Always use --dry-run first to preview what would be deleted!

Basic Usage:

# ALWAYS preview first (safe, no actual deletion)
./docker-clean.sh --dry-run

# Conservative cleanup (safest)
./docker-clean.sh --mode conservative

# Standard cleanup (default, balanced)
./docker-clean.sh

# Aggressive cleanup (maximum cleanup)
./docker-clean.sh --mode aggressive

Deletion Modes:

  1. Conservative (Safest):

    • Dangling volumes (not used by ANY container)
    • Dangling images (not tagged, not used)
    • Build cache older than 90 days
    • Unused networks (no containers attached)

  2. Standard (Balanced - Default):

    • Everything from Conservative
    • Stopped containers older than 30 days
    • Unused images (not used by any container)

  3. Aggressive (Maximum Cleanup):

    • Everything from Standard
    • ALL stopped containers (any age)
    • ALL dangling resources
    • ALL build cache

Interactive Mode:

# Ask for confirmation for each resource
./docker-clean.sh --interactive

# Interactive with conservative mode
./docker-clean.sh --mode conservative --interactive

Automated Mode:

# Automated cleanup for CI/CD (skip confirmations)
./docker-clean.sh --mode standard --yes

# With audit logging enabled
ENABLE_AUDIT_LOG=true ./docker-clean.sh --yes

Targeted Cleanup:

# Clean only volumes
./docker-clean.sh --volumes --dry-run

# Clean only dangling images
./docker-clean.sh --images --dangling --yes

# Clean containers older than 60 days
./docker-clean.sh --containers --older-than 60d --yes

# Clean large images (>1GB)
./docker-clean.sh --images --min-size 1G --dry-run

Using Exclusion Patterns:

# Exclude production resources
./docker-clean.sh --exclude "*prod*" --yes

# Exclude backup volumes
./docker-clean.sh --volumes --exclude "backup_*" --yes

# Multiple exclusions
./docker-clean.sh --exclude "*prod*" --exclude "*backup*" --yes

Example Output:

DOCKER CLEANUP - DRY RUN MODE
═══════════════════════════════════════════════════════════════

Resources to be deleted:

VOLUMES (2 items, 16.18 GB):
────────────────────────────────────────────────────────────────
✓ old_db_backup (15.2 GB) - dangling, last used: never
✓ temp_upload_vol (980 MB) - dangling, last used: never

IMAGES (2 items, 3.0 GB):
────────────────────────────────────────────────────────────────
✓ a1b2c3d4e5f6 (1.8 GB) - dangling, created 3 months ago
✓ f6e5d4c3b2a1 (1.2 GB) - dangling, created 2 months ago

CONTAINERS (2 items):
────────────────────────────────────────────────────────────────
✓ old-worker-1 - stopped 45 days ago
✓ test-nginx-1 - stopped 30 days ago

BUILD CACHE:
────────────────────────────────────────────────────────────────
✓ All build cache (4.5 GB)

TOTAL RECLAIMABLE: 23.68 GB

⚠  Run without --dry-run to perform cleanup

Options:

  • --mode [conservative|standard|aggressive] - Deletion mode (default: standard)
  • --dry-run - Preview only, no actual deletion
  • --interactive - Confirm each resource individually
  • --yes - Skip confirmations (for automation)
  • --volumes - Only clean volumes
  • --images - Only clean images
  • --containers - Only clean containers
  • --networks - Only clean networks
  • --cache - Only clean build cache
  • --all - Clean all types (default)
  • --dangling - Only dangling resources
  • --older-than DURATION - Age threshold (e.g., 30d, 60d)
  • --exclude PATTERN - Exclude resources matching pattern
  • --min-size SIZE - Only resources larger than SIZE
  • --help - Show help message

Configuration

Docker Maintainer can be configured via a configuration file to protect critical resources and customize behavior.

Configuration File Location

The configuration file is loaded in this order:

  1. ./.docker-maintainer.conf (current directory)
  2. ~/.docker-maintainer.conf (home directory)
  3. Built-in safe defaults (if no config file found)

Sample Configuration

# Safety Settings
# ===============

# Protected Volumes - NEVER deleted
PROTECTED_VOLUMES=(
    "production_db"      # Exact match
    "backup_*"           # Wildcard: backup_mysql, backup_postgres, etc.
    "*_prod"             # Wildcard: db_prod, cache_prod, etc.
    "*production*"       # Wildcard: any volume with "production" in name
)

# Protected Images - NEVER deleted
PROTECTED_IMAGES=(
    "postgres:*"         # All postgres tags
    "redis:*"            # All redis tags
    "*:production"       # Any image with "production" tag
    "*:prod"             # Any image with "prod" tag
    "*:latest"           # All latest tags
)

# Protected Containers - NEVER deleted
PROTECTED_CONTAINERS=(
    "prod_*"             # All production containers
    "*_production"       # Containers ending with "_production"
    "*-production"       # Containers ending with "-production"
)

# Require confirmation before deletion (true recommended)
REQUIRE_CONFIRMATION=true

# Enable audit logging
ENABLE_AUDIT_LOG=true

# Thresholds
# ==========

CONTAINER_ORPHAN_AGE_DAYS=30
IMAGE_ORPHAN_AGE_DAYS=60
CACHE_ORPHAN_AGE_DAYS=90
VOLUME_ORPHAN_AGE_DAYS=30

# Audit Logging
# =============

AUDIT_LOG_FILE="${HOME}/.docker-maintainer/audit.log"
AUDIT_LOG_RETENTION_DAYS=90

# Output Settings
# ===============

USE_COLORS=true
DATE_FORMAT="%Y-%m-%d %H:%M:%S"
DEFAULT_SORT="size"
SIZE_FORMAT="human"

Using the Configuration

  1. Copy the sample configuration:
cp .docker-maintainer.conf ~/.docker-maintainer.conf
  1. Edit to protect your critical resources:
nano ~/.docker-maintainer.conf
  1. Test your protection patterns:
# This should exclude protected resources
./docker-clean.sh --dry-run

Safety Features

Docker Maintainer prioritizes safety above all else. Multiple layers of protection prevent accidental deletion of critical resources.

Safety Mechanisms

  1. Running Container Protection

    • Volumes mounted by running containers are NEVER deleted
    • Images used by running containers are protected
    • Double-check validation before any deletion

  2. Configuration-Based Protection

    • PROTECTED_VOLUMES, PROTECTED_IMAGES, PROTECTED_CONTAINERS arrays
    • Wildcard pattern matching (e.g., backup_*, *_prod, *production*)
    • Customizable per-environment protection rules

  3. Dry-Run Mode

    • Preview deletions without making changes
    • Calculate space to be reclaimed
    • Identify potential issues before committing

  4. Interactive Confirmations

    • Per-resource confirmation in interactive mode
    • Final confirmation before batch operations
    • Option to skip entire resource types

  5. Audit Logging

    • All deletions logged with timestamp and user
    • Summary logs for each cleanup operation
    • Default location: ~/.docker-maintainer/audit.log

  6. Validation Before Deletion

    • Check if resources are actively in use
    • Verify container states
    • Parse dependencies between resources

What Will NEVER Be Deleted

  • Volumes mounted by running containers
  • Images used by any container (running or stopped)
  • Resources matching protected patterns in configuration
  • Networks with attached containers

Security Implementation

Docker Maintainer implements defense-in-depth security with multiple protection layers:

  • TOCTOU Mitigation: Secure temporary directory pattern eliminates race conditions
    • Atomic directory creation with mode 0700 via mktemp -d
    • Parent directory security validation
    • Prevents symlink attacks and privilege escalation
  • Input Validation: 13-layer validation for configuration arrays
    • Array declaration validation
    • Pattern safety checks (blocks .. path traversal)
    • Format validation for glob patterns
    • Empty pattern filtering
  • Command Injection Prevention: No variable expansion in Docker commands
    • Safe container state checking via dedicated helpers
    • Filter logic isolated from Docker API calls
    • Proper quoting and sanitization throughout
  • Path Traversal Protection: Blocklist for .. in patterns
    • Configuration patterns validated before use
    • File path operations restricted to Docker-managed directories
  • ReDoS Prevention: Glob matching instead of user-provided regex
    • Owner filtering uses glob patterns (*, ?) not regex
    • Eliminates CPU exhaustion attacks via malicious patterns
  • File Security: Ownership and permission validation for all config files
    • Config files must be owned by current user or root
    • Writable permissions checked before sourcing
    • Security warnings logged for suspicious ownership
  • Audit Logging: All deletion operations logged with tamper detection
    • Timestamps, user information, and resource details recorded
    • Append-only log format prevents tampering
    • Default retention: 90 days

Requirements

System Requirements

  • Operating System: Linux (Ubuntu, Debian, RHEL, CentOS, Fedora)
  • Docker: Docker Engine 20.10 or higher
  • Bash: Version 4.0 or higher
  • Permissions: User must be in docker group or have sudo access

Dependencies

Required:

  • docker - Docker CLI
  • jq - JSON parsing
  • bash - Shell scripting
  • coreutils - sort, awk, grep, column, numfmt, du, df

Check if dependencies are installed:

which docker jq bash awk grep column numfmt du df

Project Status

Phase 1: MVP (Core Functionality) - ✅ COMPLETE

Goal: Answer the 5 eternal Docker questions

Deliverables:

  • ✅ docker-lib.sh - Common functions library (850 lines)
  • ✅ docker-space.sh - Space usage analysis
  • ✅ docker-volumes.sh - Volume management
  • ✅ docker-orphans.sh - Orphan detection (640 lines)
  • ✅ Colored output and table formatting
  • ✅ Size calculations and ownership detection

Phase 2: Safe Cleanup - ✅ COMPLETE

Goal: Enable safe resource deletion

Deliverables:

  • ✅ docker-clean.sh - Resource cleanup (1,078 lines)
  • ✅ Three deletion modes (conservative, standard, aggressive)
  • ✅ Dry-run mode and interactive confirmations
  • ✅ Comprehensive safety validations
  • ✅ Configuration file support (.docker-maintainer.conf, 321 lines)
  • ✅ Protection patterns with wildcard matching
  • ✅ Audit logging system

Testing: 12/12 tests passed ✅

Roadmap

Phase 3: UX Improvements (Planned)

Goal: Better user experience

Features:

  • Enhanced colored output and formatting
  • Progress indicators for long operations
  • Better error handling and recovery
  • Multiple output formats (CSV, Markdown)
  • docker-dashboard.sh - Interactive menu system(?)

Phase 4: Advanced Features (Planned)

Goal: Automation and monitoring

Features:

  • History tracking (space usage over time)
  • Trend analysis and predictions
  • Automated reports
  • Monitoring system integration (Prometheus metrics)
  • Advanced filtering with fzf

Examples

Weekly Maintenance Routine

# 1. Check current status
./docker-space.sh

# 2. Find orphaned resources
./docker-orphans.sh

# 3. Preview cleanup
./docker-clean.sh --dry-run

# 4. Run standard cleanup
./docker-clean.sh --mode standard

# 5. Verify results
./docker-space.sh

# 6. Check audit log
cat ~/.docker-maintainer/audit.log | tail -20

Investigating Disk Space Issues

# Find largest volumes
./docker-volumes.sh --sort-by size --top 10

# Check ownership
./docker-volumes.sh --owner "myproject"

# Identify reclaimable space
./docker-space.sh --reclaimable

# Find old stopped containers
./docker-orphans.sh --types containers --container-age 30d

Emergency Cleanup (Low Disk Space)

# Preview aggressive cleanup
./docker-clean.sh --mode aggressive --dry-run

# Run aggressive cleanup
./docker-clean.sh --mode aggressive

# Clean build cache immediately
./docker-clean.sh --cache --yes

# Remove old containers
./docker-clean.sh --containers --older-than 7d --yes

Automated CI/CD Cleanup

# Add to your CI/CD pipeline
./docker-clean.sh --mode conservative --yes

# Or with specific thresholds
./docker-clean.sh --containers --older-than 7d --images --dangling --yes

Contributing

Contributions are welcome! Please feel free to submit issues, feature requests, or pull requests.

Development Setup

  1. Clone the repository
  2. Make changes to the scripts
  3. Test your changes thoroughly
  4. Ensure all scripts pass shellcheck validation
  5. Submit a pull request with a clear description

Code Style

  • Use set -euo pipefail for safety
  • Comprehensive error handling
  • Clear documentation and comments
  • Consistent naming conventions
  • Follow existing code patterns

License

MIT License - Open source, community-driven development

Support

Troubleshooting

Permission Denied:

# Add your user to the docker group
sudo usermod -aG docker $USER
# Log out and back in for changes to take effect

Volume Sizes Show as 0:

# Volume size calculation requires elevated permissions
# Run with sudo or ensure proper permissions on Docker volume paths

Script Not Found:

# Make scripts executable
chmod +x docker-*.sh

Getting Help

For help with any script:

./docker-space.sh --help
./docker-volumes.sh --help
./docker-orphans.sh --help
./docker-clean.sh --help

Acknowledgments

Built with efficiency and safety in mind, leveraging powerful CLI tools:

  • Docker CLI for resource management
  • jq for JSON parsing
  • coreutils for text processing and formatting

Project Status: Phase 1 & 2 Complete ✅ | Production Ready

Never worry about Docker disk space again!

Made with Claude ❤️ - Built from scratch in 24 hours

About

Intelligent bash scripts to analyze, monitor, and maintain Docker resources. Solve the 5 eternal Docker problems: identify volumes in use, track space consumption, detect ownership, find orphans, and safely cleanup resources with audit logging.

Topics

bash docker devops automation docker-compose maintenance resource-management system-administration cli-tool space-management docker-cleanup audit-logging

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