# Docker Security

> Opt-in advanced Docker security hardening beyond the v1.0.26 baseline — LAN containment with DNS policy, resource bounds with kernel-hygiene sysctls, and a boot-time plugin install audit log. Applied as a reversible docker-compose overlay (does not touch the base compose file) and verified against the live container. Run after /docker-setup; requires bridge networking.

## Facts
- Page: https://tashan.sh/capability/skill-gtapps-docker-security
- tashan id: skill:gtapps/docker-security
- Source: https://github.com/gtapps/claude-code-hermit
- Type: skill
- Category: security
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: 96.0
- Freshness: 92.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- License: MIT
- Official: no

## Install

```sh
cp -r docker-security ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-08-20 by tashan (https://tashan.sh) from public evidence. Scorer s5.