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Tutorial – Using Deployit Cloud Pack with Amazon EC2 – Part 1
Deployit’s Cloud Pack provides you with the ability to create and destroy environments on virtualized infrastructure from Deployit. It supports both EC2 and vSphere. In this first part of the tutorial,...
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Can continuous delivery succeed without management support?
Last wednesday the first meetup of the Continuous Delivery Think Tank was held at Xebia offices in Hilversum. The goal of the Think Tank is to gather people that want to implement continuous delivery...
View ArticleCombining Salt with Docker
You could use Salt to build and run Docker containers but that is not how I use it here. This blogpost is about Docker containers that run Salt minions, which is just an experiment. The use case?...
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Deploying a Node.js app to Docker on CoreOS using Deis
The world of on-premise private PaaSes is changing rapidly. A few years ago, we were building on on-premise private PaaSes based upon the existing infrastructure and using Puppet as an automation tool...
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How Agile accelerates your business
This drawing explains how agility accelerates your business. It is free to use and distribute. Should you have any questions regarding the subjects mentioned, feel free to get in touch.
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How combined Lean- and Agile practices will change the world as we know it
You might have attended this month at our presentation about eXtreme Manufacturing and the keynote of Nalden last week on XebiCon 2014. There are a few epic takeaways and additions I would like to...
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How architecture enables kick ass teams (1): replication considered harmful?
At Xebia we regularly have discussions regarding Agile Architecture? What is it? What does it take? How should you organise this? Is it technical or organisational? And much more questions… which I...
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Dockerfiles as automated installation scripts
Dockerfiles are great and easily readable specifications for the installation and configuration of an application. It is terse, can be understood by anyone who understands UNIX commands, results in a...
View ArticleCreate the smallest possible Docker container
When you are playing around with Docker, you quickly notice that you are downloading large numbers of megabytes as you use preconfigured containers. A simple Ubuntu container easily exceeds 200MB and...
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Bootstrapping and monitoring multiple processes in Docker using monit
If you have every tried to start a docker container and keep it running, you must have encountered the problem that this is no easy task. Most stuff I like to start in container are things like http...
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Xebia IT Architects Innovation Day
Friday August 22nd was Xebia’s first Innovation Day. We spent a full day experimenting with technology. I helped organizing the day for XITA, Xebia’s IT Architects department (Hmm. Department doesn’t...
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Docker on a raspberry pi
This blog describes how easy it is to use docker in combination with a Raspberry Pi. Because of docker, deploying software to the Raspberry Pi is a piece of cake. What is a raspberry pi? The Raspberry...
View ArticleVert.x with core.async. Handling asynchronous workflows
Anyone who was written code that has to coordinate complex asynchronous workflows knows it can be a real pain, especially when you limit yourself to using only callbacks directly. Various tools have...
View ArticleGetting started with Salt
A couple of days ago I had the chance to spend a full day working with Salt(stack). On my current project we are using a different configuration management tool and my colleagues there claimed that...
View ArticleInstalling Oracle on Docker (Part 1)
I’ve spent Xebia’s Innovation Day last August experimenting with Docker in a team with two of my colleagues and a guest. We thought Docker sounds really cool, especially if your goal is to run software...
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Fast and Easy integration testing with Docker and Overcast
Challenges with integration testing Suppose that you are writing a MongoDB driver for java. To verify if all the implemented functionality works correctly, you ideally want to test it against a REAL...
View ArticleHow to deploy a Docker application into production on Amazon AWS
Docker reached production status a few months ago. But having the container technology alone is not enough. You need a complete platform infrastructure before you can deploy your docker application in...
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How to create Java microservices with Dropwizard
On Tuesday October 14th the Amsterdam Middleware Meetup experimented with Dropwizard. The idea was to find out what this technology is about, where it could be useful and what the alternatives are. So...
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How to Dockerize your Dropwizard Application
If you want to deploy your Dropwizard Application on a Docker server, you can Dockerize your Dropwizard Application. Since a Dropwizard Application is already packaged as an executable Java ARchive...
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About snowmen and mathematical proof why agile works
Last week I had an interesting course by Roger Sessions on Snowman Architecture. The perishable nature of Snowmen under any serious form of pressure fortunately does not apply to his architecture...
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