Traefik is an application load balancer written in Go and designed to simplify
the task of serving HTTP(S) services whose configuration changes on the fly. Traefik v1.1.0
was recently released with support for Docker Swarm and it works excellently.
In this post, we’ll go through how one sets up their Swarm cluster to automatically expose
its services through Traefik.
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Docker Swarm is one of those interesting new technologies which has succeeded in shaking up
people’s preconceptions around what it means to run a scaleable cluster. In an environment
where everyone seems to be building a cluster orchestrator, including some big names like
Google’s Kubernetes, HashiCorp’s Nomad and Mesosphere’s Marathon;
Swarm has managed to burst through as one of the most attractive orchestration frameworks out
As a result of all this hype, it can be difficult to make a decision around whether Swarm is
the right tool to use. As someone who has had extensive experience with running Swarm,
Kubernetes, DC/OS (Marathon) and Rancher in production
environments, I’ll try to give you an unbiased view on the reasons you’d choose Swarm
and some of the gotchas to be aware of.
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