https://github.com/tailhook/verwalter

A tool which manages cluster of services
https://github.com/tailhook/verwalter

cluster containers networking orchestration

Last synced: 13 days ago
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A tool which manages cluster of services

• Host: GitHub
• URL: https://github.com/tailhook/verwalter
• Owner: tailhook
• Created: 2015-09-10T21:36:00.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2018-08-10T15:13:10.000Z (over 6 years ago)
• Last Synced: 2024-10-14T21:56:13.698Z (27 days ago)
• Topics: cluster, containers, networking, orchestration
• Language: Rust
• Size: 1.84 MB
• Stars: 34
• Watchers: 5
• Forks: 4
• Open Issues: 2
• Metadata Files:
  • Readme: README.rst

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README

        
=========

Verwalter

=========

:Status: Proof of Concept

:Documentation: http://verwalter.readthedocs.org

Verwalter manages local configuration data and signals processes for reload.

It's similar in spirit to confd_ or consul-template_ but has very different

feature set.

Verwalter also has optional resource management facility and may provide

service discovery too.

Features:

* Decentralized distribution of configuration

* Includes scriptable automated resource management (scripting via lua)

* Allows resource management even in minority partitions

* May provide discovery of only same-partition services in case of partitioning

* Liquid templates for configuration files

* Web interface to view current configuration state

Assumptions:

* Partitions happen

* Need some resource management in minority partition (even if it's essentially

  a "shutdown this service in minority partition", which can't be done if

  configuration is stored in zookeeper/consul/etcd)

* Need service discovery in minority partition, better if we could provide

  "only thease instances are available in current partition"

How it works:

* Collects metrics via cantal_

* Makes decisions in 10 second rounds

* Takes into account from 0.5 to 60 minutes of historical metrics

* Checks reachable nodes at each round

* Uses raft-like algorithm with weaker consistency guarantees

.. _cantal: http://cantal.readthedocs.org

.. _confd: https://github.com/kelseyhightower/confd

.. _consul-template: https://github.com/hashicorp/consul-template