1. Auto deploy webpage using pelican and travis

    many years ago I created my own webpage, it all started with pure, HTML evolved to a wordpress and finally became a pelican based setup. It got served on many different hosting providers but since a few years it's running on S3 storage and hosted through cloudfront all over the world.

    It's a very fast setup, and once the site has been deployed and every little service has been configured and implemented the only thing I need to do is writing content in markdown without having to consider how to deploy or how it will look.

    In this post I'll …


  2. Openstack Kilo change MTU till the VM it's tap interface

    Updated: 2017-03-23 19:00

    Recently I was been asked to increase the MTU on the deployed openstack cluster at one of our customers. Since the beginning of my touch on openstack networking has been the hardest part to get my head around. In the first place because openstack does some nifty things on the networking path. But also cause for the use case at the customer a lot of customization has been done to get it implemented in their infrastructure.

    Hence the shiver when the MTU question was been made..

    Nevertheless together with a colleague who likes a challenge and …


  3. S3stat

    Some weeks ago an article on hacker news got my interest. From time to time I really get an healthy dose of jealousy when people found an idea which could make them buy a tesla. My terms of someone who make a lot of money ;)

    This one is so brilliant in it's simplicity that I really was flabbergasted and made me wonder why I never came up with the idea. It generates nice reports of the usage of your site which is hosted by aws. Based on the logs of the S3 bucket or the cloudfront domain you setted up …


  4. wireless bond archlinux arm

    for one of my projects, the sms-twitter wall setup, I configured a raspberry pi with 2 wireless network interfaces to connect through a hotspot enabled on an android device. I discovered on previous events that the wireless adapter failed on me from time to time. So I went to the internet to look if I could add a second interface and bond them together.

    I found a lot of documentation on how to bond an active-backup strategy with a wired and a wireless interfaces but didn't found a setup with 2 wireless interfaces. After a while I figured out how …


  5. AWS migration

    Updated: 2017-03-17 17:00

    About a year ago I attended the AWSome Day at Mechelen. Back then I wrote a first draft article about it, but it got out of my sight unfortunately. I reviewed it and decided to publish it anyway.

    The event was based on their essentials course and took use through the different AWS core services (compute, storage, database and network).

    I do know it has nothing to see with open-source. But it is a part of that ultimate cloud based setup I believe in which exists in one central place from where you can manage all …


  6. Openstack static ip

    last couple of days I have been fighting with the way an static ip is configured on an openstack virtual centos 6 instance. In our specific use case we ditched as many network openstack services as possible as I previously described.

    We want to have the instances running in our current network spaces of the R&D department. In this department until some days ago we didn't had any DHCP server running. But a few weeks back we added an extra remote network space into our platform where we configured a remote compute-node.

    This is where the issues started popping …


  7. Openstack live-migration

    Some of you may already have notices others just stumbled on this post through a search engine, I have set up an openstack private cloud at one of our projects:

    We have noticed that the benefits of having a private cloud is spreading through the different teams within the organization and therefore the interest into this flexibility is growing. Since this wasn't the original use case we are encountering some design issues right now.

    For the original instances the default overcommit ratios are fine. But the request for new machines with other goals are like …


  8. Openstack layer2

    A few months ago I implemented an RDO based openstack kilo release private cloud at one of our customers for their development platform. Through time we tackled a couple of issues so the cloud could be fitted into their work flows.

    We stumbled onto some minor issues and some major ones. Let's begin with the minor ones ;)

    When upgrading the all-in-one controller before we started using the cloud in 'production' a mean bug bit us in the ankle due to a new hiera package. After some digging around a patch came to the rescue together with the exclusion of the …


  9. SMS twitter wall

    Updated: 2016-10-17 22:00

    A long time ago I was active in the local scouting group. To earn some money to keep our group in a healthy financial position we organized a so called vedettweekend. It's an event where people can have a beer, vedett obviously spin a dance, enjoy a spaghetti and have a good chat with your friends.

    I always played with the idea of creating a social media wall on one of the projectors we rented for the event. But I never found/made time for it, until today.. My youngest brother is who's interests are overlapping …


  10. Vagrant puppet setup

    We at Inuits are using vagrant for a lot of use cases, neither you are a developer or a sysadmin you for sure will walk into it. Me, myself I do use it merely to automate the many different use cases asked by various projects. It took some time to get myself organized with this pretty nifty piece of software.

    In the beginning I used it with the default virtualization provider virtualbox later on I switched to lxc containers instead. By using those containers I already gained on performance. Spinning up and down new containers to test if an application …


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