basecamp/kamal
Kamal
Kamal is a deployment tool for containerized applications that manages Docker containers across a fleet of remote servers via SSH. It serves as a lightweight alternative to managed platforms, enabling the hosting of web applications on bare metal or virtual private servers without a heavy orchestrator.
The tool orchestrates zero-downtime deployments by managing container rotations and using traffic switching to ensure applications remain available during updates. It utilizes a centralized command line interface to coordinate deployment sequences and execute commands across multiple remote destination servers.
The system covers remote server fleet management, self-hosted container orchestration, and rolling-update deployment strategies. It uses a reverse-proxy to redirect incoming requests between old and new containers to prevent service interruptions.
Features
- Containerized Application Deployments - Provides a tool for deploying full application environments using portable Docker containers to remote servers.
- Docker-Based Deployment Tools - Ships a tool for deploying applications as Docker containers to remote servers via SSH.
- Direct-to-Host Deployments - Enables pulling and starting containers directly on target servers without requiring a heavy cluster orchestrator.
- SSH-Based Remote Execution - Executes deployment commands across remote servers via secure shell connections without requiring persistent agents.
- Remote Server Fleet Management - Execute deployment commands across a fleet of remote servers using a single centralized interface.
- Rolling Update Orchestrators - Manages sequential application updates across a fleet of servers to maintain high availability.
- Zero-Downtime Deployments - Ensures continuous service availability by switching incoming requests between containers during application updates.
- Remote Server Management Tools - Provides a centralized control interface for managing deployments and executing commands across multiple remote servers.
- SSH-Based Infrastructure Managers - Manages Docker containers across a fleet of servers using agentless execution via secure shell connections.
- Reverse Proxies - Implements a reverse proxy to redirect incoming requests between containers to ensure zero-downtime updates.
- Command-Line Orchestrators - Provides a centralized command-line interface to orchestrate deployment sequences across remote server fleets.
- Self-Hosted PaaS Platforms - Acts as a lightweight self-hosted platform for automating the deployment of applications on private virtual servers.
- Container-Based Isolation - Uses containerization to ensure consistent runtime environments and application isolation across different host servers.
- DevOps Tools - Execute zero-downtime deployments and server management.
