act-docker-setup

Installation
SKILL.md

Act - Docker Configuration and Setup

Use this skill when configuring Docker for act, choosing runner images, managing container resources, and optimizing Docker performance for local GitHub Actions workflow testing.

Runner Images

Image Size Categories

Act supports three image size categories:

Size Image Tools Use Case
Micro node:16-buster-slim Minimal Simple Node.js workflows
Medium catthehacker/ubuntu:act-* Common tools Most workflows
Large catthehacker/ubuntu:full-* Everything Maximum compatibility

Official catthehacker Images

Related skills
Installs
21
GitHub Stars
150
First Seen
Jan 22, 2026