Out of the Box Docker

Docker's Logo
Docker’s Logo

Docker is become an incredibly prevalent tool in the development and operations realms in recent months. Its combination of developer friendly configuration and simple operational management make it a very attractive prospect for companies and teams looking to adopt CI and CD practices.

In most cases, you’ll see Docker used to deploy applications in much the same way as a zip file or virtual machine image. This is certainly the most common use case for Docker, but by no means the extent of its functionality.

In this post I’m going to discuss some of the more interesting problems we’ve used Docker to solve and why it serves as a great solution to them.

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Dockerizing Aurelia

Aurelia's Logo
Aurelia’s Logo

Aurelia is a modern web application framework in the spirit of Angular, with an exceptionally concise and accessible developer experience and standards compliant implementation. It is hands down my favorite web framework right now and one I’d strongly recommend for most projects.

One of Aurelia’s greatest claims to fame is the incredible productivity you can achieve, enabling you to build a full web application in just days, if not hours.

When building the application becomes that fast, spending a day putting together your deployment pipelines to roll out your application becomes incredibly wasteful, so how can we avoid that?

Well, Docker offers us a great way to deploy and manage the life-cycle of production applications. It enables us to deploy almost anywhere, with minimal additional effort and in a highly reproducible fashion.

In this post I’ll go over the process of Dockerizing an existing Aurelia web application built with WebPack, however the same process applies to those built using SystemJS.

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Traefik on Docker Swarm

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

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 there.

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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