Load balancing for microservices (first version)

[fititnt]

See Infrastructure strategy for Etica.AI agents: microservices at EticaAI/forum#30

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It is interesting to have an infrastructure that abstracts employees from the routing and balance system for applications. I and most of the close people with infrastructure knowledge have experience using HAproxy, NGinx and Varnish as a load balancer.

Now we are considering the use of Træfik (traefik).

This issue is to gather information from the first version of load balancer for microservices of Etica.AI.

[fititnt]

Træfik (pronounced like traffic)

From documentation of https://traefik.io/

Træfik (pronounced like traffic) is a modern HTTP reverse proxy and load balancer made to deploy microservices with ease. It supports several backends (Docker, Swarm mode, Kubernetes, Marathon, Consul, Etcd, Rancher, Amazon ECS, and a lot more) to manage its configuration automatically and dynamically.

Features

• It’s fast
• No dependency hell, single binary made with go
• Tiny official official docker image
• Rest API
• Hot-reloading of configuration. No need to restart the process
• Circuit breakers, retry
• Round Robin, rebalancer load-balancers
• Metrics (Rest, Prometheus, Datadog, Statd)
• Clean AngularJS Web UI
• Websocket, HTTP/2, GRPC ready
• Access Logs (JSON, CLF)
• Let’s Encrypt support (Automatic HTTPS with renewal)
• Proxy Protocol support
• High Availability with cluster mode (beta)

  Supported backends

• Docker / Swarm mode
• Kubernetes
• Mesos / Marathon
• Rancher (API, Metadata)
• Consul / Etcd / Zookeeper / BoltDB
• Eureka
• Amazon ECS
• Amazon DynamoDB
• File
• Rest API

Interatives tutorials

Katacoda tutorial: https://www.katacoda.com/courses/traefik/deploy-load-balancer

Play-With-Docker: http://training.play-with-docker.com/traefik-load-balancing/

[fititnt]

This Play-With-Docker traefik tutorial is fantastic. Highly recommend it. Since last year I did not work on new projects with docker and this tutorial even shows recent additions like docker swarm, already working together with traefik.

Link: http://training.play-with-docker.com/traefik-load-balancing/

Além de permitir tutorial interativo, você tem acesso a URLs de aplicações testadas. É mais interessante testar com ele para quem esta aprendendo.

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[fititnt]

It's working (for a first version, of course)