Docker Compose Secure Generator

Generate secure-by-default Docker Compose configurations with localhost port binding and least privilege enforcement.

Updated Aug 23, 2026
One-click install
npx skills add https://github.com/cassao29/claude-secure-plugins --skill docker-compose-secure-generator
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Docker Compose Secure Generator
Source: https://github.com/cassao29/claude-secure-plugins/tree/main/plugins/devops/docker-compose-secure/skills/docker-compose-secure
Command: npx skills add https://github.com/cassao29/claude-secure-plugins --skill docker-compose-secure-generator

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Insecure Docker Compose configurations are a major attack vector, leading to server compromises due to publicly exposed ports, privileged containers, and hardcoded secrets. This Skill prevents these common pitfalls, safeguarding your applications and infrastructure.

Core Features & Use Cases

  • Default Localhost Port Binding: Automatically binds all ports to 127.0.0.1 by default, preventing accidental public exposure.
  • Least Privilege Enforcement: Includes no-new-privileges:true and recommends non-root users and read-only filesystems.
  • Resource & Health Management: Adds resource limits, health checks, and logging configurations to prevent resource exhaustion and ensure service stability.
  • Use Case: Generate a secure docker-compose.yml for a new web application, database, and Redis cache, ensuring all services are isolated, have proper health checks, and are not publicly exposed by default.

Quick Start

Generate a secure Docker Compose file for a Node.js application, a PostgreSQL database, and a Redis cache. Ensure the Node.js app is exposed on port 3000 (localhost only) and the database is on an internal network.

Frequently Asked Questions about Docker Compose Secure Generator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I prevent Docker containers from running with privileged access and exposing ports publicly?

Secure Docker Compose configurations enforce least privilege by default: binding ports to localhost only, adding no-new-privileges:true, running non-root users, and applying read-only filesystems. This prevents accidental public exposure and unauthorized container escalation in development and production.

What are common Docker Compose misconfigurations that create security risks?

Common misconfigurations include publicly exposed ports, privileged mode containers, hardcoded secrets in environment variables, missing resource limits, and absent health checks. Secure-by-default Docker Compose generation automatically addresses ports, user permissions, secret handling, resource quotas, and monitoring to close these attack vectors.

How do I set up Docker Compose with network isolation, resource limits, and health checks?

Generate a secure Docker Compose file that configures internal networks for service isolation, applies CPU and memory quotas per container, adds robust health checks with startup delays and retry logic, and restricts Linux capabilities. This ensures services communicate safely, prevent resource exhaustion, and maintain observability.

Can I use Docker Compose for both development and production with the same security standards?

Yes. Secure Docker Compose generation satisfies requirements across development through production workflows by enforcing localhost binding, mandatory security options, read-only filesystems, capability restrictions, and secure environment variable handling. The same configuration pattern scales without compromising security posture.

Why should I avoid hardcoding secrets and use read-only filesystems in Docker Compose?

Hardcoded secrets in environment variables or configs expose credentials if containers are compromised or logs are breached. Read-only filesystems prevent unauthorized file modifications and container escape attacks. Secure Docker Compose generation enforces both practices to minimize attack surface and data leakage risk.

What's the best way to ensure Docker containers don't consume excessive resources or become unresponsive?

Define resource limits (CPU and memory quotas) and health checks in Docker Compose to prevent resource exhaustion and detect service failures early. Secure configuration generation adds these automatically with logging configurations, enabling proactive monitoring and graceful degradation under load.