Kamal is an open-source tool from 37signals that deploys containerized applications to any server via SSH and Docker, providing a simpler alternative to Kubernetes.

Does this skill support Kamal 2.0?

Yes, this skill is optimized for Kamal 2.0, including the use of kamal-proxy for routing and SSL management.

How does this skill handle secrets?

It provides best practices for managing secrets using the .kamal/secrets file and environment variable configuration to keep credentials out of your git repository.

Is Docker required locally to use this skill?

While Docker is typically used locally, this skill can help you configure remote builders to build your images directly on your target servers.

Can I use Kamal with any cloud provider?

Absolutely. Kamal is cloud-agnostic and works with any server (Hetzner, DigitalOcean, AWS, etc.) as long as you have SSH access.

Kamal Deploy Expert

Name: Kamal Deploy Expert
Author: nityeshaga

bynityeshaga

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Deployment & DevOps

Deploys containerized applications to any server with zero downtime using Kamal's SSH and Docker-based workflow.

About

This skill provides expert-level guidance for using Kamal (formerly MRSK) to manage containerized application deployments on any infrastructure, from private VPS to cloud providers. It automates the fetching of the latest documentation to ensure up-to-date configuration for SSL via kamal-proxy, multi-server roles, accessory management for databases, and secrets handling. Whether you are migrating from Heroku or setting up a new Rails application on Hetzner, this skill offers comprehensive implementation patterns for Docker-based infrastructure management without the complexity of Kubernetes.

Key Features

Step-by-step guidance for multi-server roles and database accessory setup
Configuration assistance for kamal-proxy, Let's Encrypt SSL, and health checks
47 GitHub stars
Troubleshooting for container health, registry authentication, and SSH issues
Migration support for moving from Kamal 1.x to 2.x architecture
Automated retrieval of the latest Kamal documentation and command references

Use Cases

Deploying Ruby on Rails or web applications to VPS providers like Hetzner or DigitalOcean
Migrating from PaaS providers like Heroku to self-hosted infrastructure
Setting up zero-downtime deployment pipelines for containerized apps without Kubernetes

About

Key Features

Step-by-step guidance for multi-server roles and database accessory setup
Configuration assistance for kamal-proxy, Let's Encrypt SSL, and health checks
47 GitHub stars
Troubleshooting for container health, registry authentication, and SSH issues
Migration support for moving from Kamal 1.x to 2.x architecture
Automated retrieval of the latest Kamal documentation and command references

Use Cases

Deploying Ruby on Rails or web applications to VPS providers like Hetzner or DigitalOcean
Migrating from PaaS providers like Heroku to self-hosted infrastructure
Setting up zero-downtime deployment pipelines for containerized apps without Kubernetes