Propellor
Propellor is an open-source configuration management tool written in Haskell. It uses a declarative domain-specific language to define system configurations, allowing developers to manage and deploy hosts and services with a high-level syntax.
opensource
haskell
configuration-management
deployment
Propellor: Open-Source Configuration Management Tool
An open-source configuration management tool written in Haskell, using a declarative domain-specific language for high-level system configurations and host/service management.
What is Propellor?
Propellor is an open source configuration management and deployment tool written in the Haskell programming language. Unlike traditional imperative configuration management tools like Ansible, Puppet or Chef, Propellor uses a declarative domain-specific language to define desired system configurations and state.
Some key features and benefits of Propellor include:
- Declarative syntax - Specify the end state you want, not how to get there. Avoid imperative scripts and recipes.
- Idempotent ensured - Repeatedly applying a configuration always converges to the same end state.
- Atomic synchronization - Propellor can roll back partial changes if something goes wrong during deployment.
- Type safety - Being Haskell, configurations have static type checking to catch errors early.
- Extensible and customizable - Haskell allows Propellor to be easily extended and adapted.
Overall, Propellor brings the benefits of declarative DevOps infrastructure to enable flexible and robust server configuration management. Its domain specific approach and host/service abstraction aims to reduce complexity compared to general purpose tools.
Propellor Features
Features
- Declarative configuration language
- Idempotent system configuration
- Manages hosts and services
- Written in Haskell
Pricing
- Open Source
Pros
Declarative syntax makes configurations easy to read and maintain
Being purely functional avoids side effects and ensures reproducibility
Type safety prevents many errors
Cons
Steep learning curve for Haskell syntax
Limited adoption outside of Haskell community
Official Links
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