Internet of things

Jan Toebes

Do you remember the time that you were not connected to the internet? When you had to call your friend instead of sending a message via Whatsapp to make an appointment. The times you had to apply for a job by writing a letter with  a pen instead of sending your Linkedin page? We all have gone through a major revolution in which we've all got a digital identity. The same revolution has started for things, right now!

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A High Available Docker Container Platform using CoreOS and Consul

Mark van Holsteijn

Docker containers are hot, but containers in themselves are not very interesting. It needs an eco-system to make it into  24x7 production deployments. Just handing your container names to operations, does not cut it.

In the blog post, we will show you how  CoreOS can be used to provide a High Available Docker Container Platform as a Service, with a box standard way to deploy Docker containers. Consul is added to the mix to create a lightweight HTTP Router to any docker application offering a HTTP service.

We will be killing a few processes and machine on the way to prove our point...
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How to write an Amazon RDS service broker for Cloud Foundry

Mark van Holsteijn

Cloud Foundry is a wonderful on-premise PaaS  that makes it very easy to build, deploy while providing scalability and high availability to your stateless applications. But Cloud Foundry is really a Application Platform Service and does not provide high availability and scalability for your data. Fortunately, there is Amazon RDS, which excels in providing this as a service.

In this blog I will show you how easy it is to build, install and use a Cloud Foundry Service Broker for Amazon RDS.  The broker was developed in Node.JS using the Restify framework and can be deployed as a normal Cloud Foundry application. Finally,  I will point you to a skeleton service broker which you can use as the basis for your own.

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Consul: the end of CNAMEs and PuppetDB?

Benny Cornelissen

Do you use CNAME records to identify services on your network? Do you feel life is impossible without PuppetDB and exported resources? In this blog I will explain how Consul can be used to replace both, and jump-start your transition towards container-based infrastructure in the process.

Microservices: coupling vs. autonomy

Gero Vermaas

Microservices are the latest architectural style promising to resolve all issues we had we previous architectural styles. And just like other styles it has its own challenges. The challenge discussed in this blog is how to realise coupling between microservices while keeping the services as autonomous as possible. Four options will be described and a clear winner will be selected in the conclusion.

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Reducing the size of Docker Images

Richard Woudenberg

Using the basic Dockerfile syntax it is quite easy to create a fully functional Docker image. But if you just start adding commands to the Dockerfile the resulting image can become unnecessary big. This makes it harder to move the image around.

A few basic actions can reduce this significantly.

A product manager's perfection....

Chris Lukassen

is achieved not there are no more features to add, but when there are no more features to take away. -- Antoine de Saint Exupéry

Not only was Antoine a brilliant writer, philosopher and pilot (well arguably since he crashed in the Mediterranean) but most of all he had a sharp mind about engineering, and I frequent quote him when I train product owners, product managers or in general product companies, about what makes a good product great. I also tell them their most important word in their vocabulary is "no". But the question then becomes, what is the criteria to say "yes"?

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Tutum, first impressions

Steven Ottenhoff

Tutum is a platform to build, run and manage your docker containers. After shortly playing with it some time ago, I decided to take a bit more serious look at it this time. This article describes first impressions of using this platform, more specifically looking at it from a continuous delivery perspective.

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Exploring container platforms: StackEngine

Bas Tichelaar

Docker has been around for more than a year already, and there are a lot of container platforms popping up. In this series of blogposts I will explore these platforms and share some insights. This blogpost is about StackEngine.

TL;DR: StackEngine is (for now) just a nice frontend to the Docker binary. Nothing...

Try, Option or Either?

Remco Beckers

Scala has a lot of different options for handling and reporting errors, which can make it hard to decide which one is best suited for your situation. In Scala and functional programming languages it is common to make the errors that can occur explicit in the functions signature (i.e. return type), in contrast with the common practice in other programming languages where either special values are used (-1 for a failed lookup anyone?) or an exception is thrown.

Let's go through the main options you have as a Scala developer and see when to use what!

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