Traefik + Consul

Project

In this project, we will use:

• Docker
• Docker-Compose
• Traefik LB
• Consul

Why Trafik?

Traefik is a powerful tool written in GO. This tool has the power to intelligently balance loads. Traefik has 2 ways of configuration: Statics and Dynamics

In this project we will use dynamic, because it's cooler

Traefik Link

Why Consul?

Consul is a tool also developed in GO by HashiCorp With this tool, we can do a number of things:

• DNS
• Service Mesh
• Service Discovery
• KV Store

In this project we are going to use Consul so that traefik consults the taguiated catalog of services and automatically discovers new hosts to balance the load

Consul Link

How to

First we need to have docker and docker-compose installed on the machine. To install docker and docker-compose run the commands below: Docker:

curl -fsSl https://get.docker.com | sh

Docker-Compose Debian/Ubuntu

apt-get install docker-compose

Red Hat, CentOs

yum install docker-compose

Now... clone the project

git clone https://github.com/matheusmgon/traefik-consul.git

Access the project folder...

Dentro do arquivo "consul/consul-server/config/server.json", existe uma linha que define o DNS que o traefik irá usar para balancear a carga, fica a seu critério alterar, mas lembre-se de colocar em seu arquivo host

To start the project, type:

docker-compose up

Unfortunately using the default Traefik image, the interface will not be accessible, but this we solved by registering a traefik service at the consul.

docker exec -ti traefik curl -XPUT -d '{"ID":"traefik","Name":"traefik","tags":["traefik.enable=true","traefik.http.routers.traefik.entrypoints=web","traefik.http.routers.traefik.rule=Host(`traefik.redelocal`)","traefik.http.routers.traefik.service=api@internal"],"port":80}}' http://consul-server:8500/v1/agent/service/register?replace-existing-checks=true

end ...