't is Goud

Silence is foo

Thu, 22 Oct 2020 00:00:00 +0000

Taking a screenshot, emptying the trashcan or other notification sounds can be very distracting during presentations, video calls or webinars. When you hear a notification sound from the presenting side FOMO kicks in. Did I miss something? Or if you are busy, emptying the trashcan, receiving new email or taking a screenshot these sounds are also heard on the other side. Time to disable these sound effects. There are two ways to disable the “System UI Sound Effects”:

Persistent NFS mount points on macOS

Wed, 21 Oct 2020 00:00:00 +0000

After finishing my blog post “Automount with launchd” I talked about it with my friend Herman. The launchd solution had a code-smell which usually is not a good sign. It works fine but it has too much dependencies. The launchd path and just running a script to mount the NFS shares seemed a better solution. At least no longer a workaround. I tried mounting NFS with the mount command but the results were somewhat unexpected.

Automount with launchd

Sun, 18 Oct 2020 00:00:00 +0000

Updated on 23 October 2020 - Better solution described in Persistent NFS mount points on macOS. Intro In a previous blog post “Automount NFS on macOS” I wrote about how to mount NFS shares. Unfortunately the solution was not reboot proof. On each reboot the OS resets the auto_master to its default state. As a workaround I created a script to add the missing lines to the auto_master. The script needs to be run manually with sudo rights.

Multipass multi-node Kubernetes cluster

Mon, 12 Oct 2020 00:00:00 +0000

Before running a multi-node Kubernetes cluster on my Raspberri Pi cluster I wanted to play around with the different deployments and possibilities. For that I was looking for an easy-to-use tool to spin-up a couple of virtual Linux machines as Kubernetes nodes. Multipass The easy-to-use tool I found was Canonical’s Multipass. Much easier to use than VirtualBox or VMware Fusion. Downloads are available for Windows, Mac and Linux and the installation is very straightforward.

Keyboard redefined - part 2

Sat, 19 Sep 2020 00:00:00 +0000

This is part 2 of my “Keyboard redefined” post. In part 1 I wrote about the tools and native ways I encountered to customize my keyboard. I bought this Qisan Magicforce 68 mechanical keyboard, with a PC layout. A nice compact PC keyboard with proper arrow-keys. The main goal was to swap the Window (❖)- and Alt- keys for the Command (⌘)- and Option (⌥) keys. The keyboard has only 5 rows, the main reason to combine three keys into one Escape key.

Keyboard redefined - part 1

Wed, 09 Sep 2020 00:00:00 +0000

Recently I bought a mechanical keyboard, the Qisan Magicforce 68. A nice compact keyboard with proper arrow-keys. Disadvantage, it has a PC layout and a combined Escape, grave accent and tilde key. The Window (❖)- and Command (⌘) key both send the same USB scancode. Same for the Option (⌥) key on an Apple keyboard and the Alt key on PC keyboards, both send the same USB scancode. Functionally everything is there but at the wrong place on the keyboard.

ConBee in Home Assistant on Proxmox

Mon, 31 Aug 2020 00:00:00 +0000

I had deCONZ working in Home Assistant and everything was running fine until I rebooted the Proxmox host due to some kernel updates. After the reboot the deCONZ add-on was no longer working. deCONZ complained about not finding the device. It was some time ago since I installed de ConBee device so I had to refresh my memory on how the passthrough was configured in Proxmox. Like most ‘problems’ multiple things lead to the time-consuming ‘solving’ proces, in this case:

Xiaomi Dafang Hack

Sun, 03 May 2020 00:00:00 +0000

A while ago I read about these cheap IP cameras that could be modified. Modified in a sense that the camera no longer connects to the Xiaomi servers and that we can hook it up to our own systems. In my case that would be Home Assistant. The camera can be bought at some Chines sites for around 20 euros. Just search for ‘xiaomi xiaofang 1s’ or ‘xiaomi dafang’ and you will find several suppliers.

Saving the Yak browser-trail

Sun, 26 Apr 2020 00:00:00 +0000

Browsing the internet allways leads you from one site to the other, you’re not finished reading the first but you see this reference to another item and before you know it you are ‘shaving the Yak’. You go back to where you started but do not want to discard the trail of interesting articles you found so far… So you want to save all these open tabs to review them later, buth how?

From Publii to Hugo

Tue, 24 Mar 2020 00:00:00 +0000

Why leave Publii Yes, I again switched my blogging workflow. Although Publii was easy to use, created a good looking, fast and responsive site it still missed some features. Where it falls short: Machine independant workflow, I placed my Publii folder in Dropbox to have it synchronised across machines but generating the site from a Dropbox folder pushed my CPU’s well over 100% Creating posts with code blocks, writing a post in Publii and adding a piece of code is cumbersome and error prone.

Algolia and Gitlab CI/CD

Thu, 19 Mar 2020 00:00:00 +0000

Still working on my blog workflow I was looking for a way where I can work on my blog from my laptop while I’m on the road, from my desktop at home and even from my iPad. The Hugo theme “Clean White” uses Algolia for searching the site. The documentation of the theme clearly explains how to build and upload the search-index but that would make my setup less portable.

Deploy to sFTP from Gitlab CI

Fri, 06 Mar 2020 00:00:00 +0000

Using GitLab CI is a very convenient way to automate deployments of a website or blog. Most of the time it just works but sometimes it takes a bit more time to get things going. The challenge I faced was the automatic deployment from Gitlab to a webhoster that only supports sFTP. There are several workflows possible, I prefer to have just the source of the site in Gitlab and let the Gitlab CI take care of the rest: I came across an article by Savjee that used lftp to transfer the files with Gitlab CI to an sFTP host.

Events

Wed, 26 Feb 2020 00:00:00 +0000

List of upcoming events that seem interesting. Due to COVID-19 most of it is cancelled, therefore an empty list 😲 2020

Domotics or Home Automation

Thu, 06 Feb 2020 00:00:00 +0000

For the 5th KPN GroSkills event in Groningen I was asked to give a presentation on Domotics/Home Automation. For this presentation I used Reveal.js, you can see an impression of the Dutch slide below. See the References section for the other version of the slides. In this presentation I talked about what Home Automation is, it’s pro’s and con’s, how it works, my setup, the different protocols, what is currently available, how existing devices can be modified, the DIY options, “Home Assistant” and how to get started.

Config Management Camp 2020 - day 2

Tue, 04 Feb 2020 00:00:00 +0000

Config Management Camp 2020 - day 1

Mon, 03 Feb 2020 00:00:00 +0000

Configuration Management Camp is the event for technologists interested Open Source Infrastructure automation and related topics. This includes but is not limited to top Open Source Configuration Management, Provisioning, Orchestration, Choreography, Container Operations, and many more topics. Untitled Config Game Ryn Daniels | they/them | @rynchantress CfgMgmtCamp session info Title refers to the Untitled Goose Game where you are horrible goose. State Application state System state Configuration state Source state Human state horrible lessons learned Don’t forget about application state Knons aren’t always known Monitor your configuration state Don’t leave your states unsupervised Enforce source state completeness and config state consistency Get rid of unreliable tools Make sure your tooling is usable by humans “Make it hard to do the wrong thing”

FOSDEM'20 - stickers and stands

Mon, 03 Feb 2020 00:00:00 +0000

Stickers and stands. At an event like FOSDEM you listen to sessions speak to people at stands or otherwise. On this page I gathered the references to things other than sessions. Keda Kubernetes-based Event Driven Autoscaling Not something from FOSDEM but somehow came across it. Github/kedacore/keda KEDA allows for fine grained autoscaling (including to/from zero) for event driven Kubernetes workloads. KEDA serves as a Kubernetes Metrics Server and allows users to define autoscaling rules using a dedicated Kubernetes custom resource definition.

FOSDEM'20 - day 2

Sun, 02 Feb 2020 00:00:00 +0000

FOSDEM is a free event for software developers to meet, share ideas and collaborate. Every year, thousands of developers of free and open source software from all over the world gather at the event in Brussels. The State of Go What’s new since Go 1.12 Francesc Campoy & Maartje Eyskens FOSDEM session info Slides Go 1.14 is planned to be released in February 2020- and this talk covers what’s coming up with it.

FOSDEM'20 - day 1

Sat, 01 Feb 2020 00:00:00 +0000

20 years of FOSDEM FOSDEM is a free event for software developers to meet, share ideas and collaborate. Every year, thousands of developers of free and open source software from all over the world gather at the event in Brussels. Fundamental Technologies We Need to Work on for Cloud-Native Networking Magnus Karlsson | Intel FOSDEM session info “Good is good enough” Very pragmatic quote, no need to strive for perfection …

Belgium Kubernetes Meetup

Fri, 31 Jan 2020 00:00:00 +0000

Very good talks at this pre-FOSDEM 2020 Meetup in an unusual industrial location. So You’re Using Kubernetes! A Practical Guide for Application Security Phil Estes | @estesp | IBM Talk summary In this talk we’ll cover the options and best practices at each layer for deploying and running applications in a secure way. We will also look at the ever-growing ecosystem of tooling–spanning both open source and vendor-specific–that can be useful as developers help their overall organizations move towards production-ready secure applications in Kubernetes!

About me

Fri, 17 Jan 2020 00:00:00 +0000

Welcome to my website, my name is Albert W. Alberts and this is my personal website. How I came to the name of this site - ‘t Is Goud - is explained here. Posts On this site I will write about things that catch my attention, projects I’m working on, ideas I have, vacation photos and whatever else I want to share. My Day-To-Day Job I work as an architect for a large Telco and ISP.

Fresh install of macOS

Sun, 17 Nov 2019 00:00:00 +0000

Whatever the reason is for re-installing the applications and settings on your mac, it can be a lot of work. Over the years you get used to working in a certain way with specific tooling and settings. Installing everything from scratch is cumbersome at least. In this post I wrote down how I restore my configuration. It is based on a cleanly installed mac. Everything is installed from scratch only most of it is now automated.

Automount NFS on macOS

Mon, 21 Oct 2019 00:00:00 +0000

Updated on 23 October 2020 - Better solution described in Persistent NFS mount points on macOS. Updated on 5 May 2020 - Updating the OS removes the added lines from the file ‘auto_master’ With each OS update the ‘auto_master’-file is reset to its default. The ‘auto_nfs’-file which mounts the NFS volume still exists in the /etc directory and is untouched. This is a quick-fix to add the missing line to the ‘auto_master’-file.

Multiple Git Accounts

Thu, 10 Oct 2019 00:00:00 +0000

When you are working with multiple Git accounts across different git-providers it’s hard to manage access to all these repositories. When you search for a solution you will find different ways to solve this problem.

Basically it comes down to two SSH-based solutions;

Use named SSH configurations in the ~/.ssh/config file.
Use the git includeIf directive.

Open in VSCodium

Mon, 30 Sep 2019 00:00:00 +0000

First posted on 30-09-2019, updated with the new VSCodium logo.

I recently switched from Visual Studio Code (on Mac) to VSCodium and missed Sertaç Özercan’s OpenInCode toolbar app. With that tool you can select a file or folder and click on the toolbar icon to open the selection in Visual Studio Code.

This post describes what I did to “restore” the toolbar button functionality for VSCodium.

Make your Ansible playbooks flexible, maintainable, and scalable

Thu, 19 Sep 2019 00:00:00 +0000

Jeff Geerling (geerlingguy) gave a presentation at AnsibleFest 2019 in Austin (TX). This post is an abstract of his presentation. Jeff’s presentation covers how he builds and maintains Ansible playbooks, roles, and gives tips for making them easy to expand and scale.

Linkerd Online Community Meetup

Wed, 28 Aug 2019 00:00:00 +0000

August Linkerd Online Community Meetup 📅 28 August 2019 Live stream signup Join Oliver, Thomas, and special guests Rita Zhang, maintainer of Gatekeeper, and Matias Pan, maintainer of OpenFaaS, for: 🌈 Linkerd 2.5 roundup 🌈 Linkerd 2.6 TOP SECRET plans 🌈 Gatekeeper with Rita (@ritazzhang) 🌈 OpenFaaS with Matias (@matiaspan26) And of course, plenty of Q&A time with Oliver and Thomas! Got a Linkerd demo to show off? Have a topic suggestion?

Switching to VSCodium

Wed, 21 Aug 2019 00:00:00 +0000

Probably as many of you, I tried my share of code editors; TextMate, Sublime and Atom. A while ago I wrote a little app in Go(Lang) and someone pointed me to Visual Studio Code and Microsoft’s Go(Lang) plugin. I tried it and switched …

Until I read something about the FLOSS version of Visual Studio Code; VSCodium and switched again …

Netherlands' most beautifull railway station

Wed, 07 Aug 2019 00:00:00 +0000

The railway station of Groningen has been chosen as the most beautifull railway station of the Netherlands in 2019. The old railway station is indeed very impressive. Not only the outside but also the inside is a must-see. The amount of authentic details is overwhelming. Original article on the NOS site.

Website hosting met GitHub

Thu, 20 Jun 2019 00:00:00 +0000

This is a follow-up on my Markdown presentation. In this presentation I showed how to create a website using static-site generators and github. The presentation was made with Reveal.js. Slides are in Dutch. See the References section below for the other version of the slides. Sources used in the presentation: StaticGen, Static Site Generators Headless CMS JAMstack Wikipedia: Markdown GitHub Markdown Guide Marked.js(online editor) GitHub Pages GitLab Pages BitBucket (Atlassian) Jekyll Hugo Hugo documentation Hugo themes MKdocs Publii Presentation date Thursday, June 20 2019, KPN GroSkills, Groningen References Slides Online Slides on SpeakerDeck GitHub

Observability

Wed, 19 Jun 2019 00:00:00 +0000

As architect of the KPN API Store I gave a presentation on observability and our quest to get more insight into our platform. A very brief overview of the slides: Monitoring Monitoring is for symptom-based alerting Your monitoring system should address two questions: what’s broken, and why? The “what’s broken” indicates the symptom The “why” indicates a (possibly intermediate) cause. Observability “Observability”, is a superset of “monitoring”, providing certain benefits and insights that “monitoring” tools cannot deliver.

Groningen: A Winning alternative to Amsterdam

Mon, 22 Apr 2019 00:00:00 +0000

My hometown is mentioned on CNN travel as one of the 17 places to visit in a modern-day Grand Tour of Europe. “Young and hip, Groningen is a winning alternative to Amsterdam. The canals and classic Dutch buildings are all in evidence, but without the bustling hordes of tourists. The bike is king here, with the majority of journeys taken on two wheels. The routes are flat and easy, so hire one and head off for an explore.

Simultaneous green lights for bikes

Thu, 04 Apr 2019 00:00:00 +0000

For outsiders cycling in Groningen leaves an impression of utter chaos. Groningen is a cycling city, 60% of all traffic movement is done on bike. For me growing up with bikes in Groningen it comes as second nature. The awareness of being chaotic to outsiders only arises when someone tries to explain the rules of this almost organic system. Below is one of the movies that tries to explain these rules.

MkDocs in a Docker container

Sun, 24 Mar 2019 00:00:00 +0000

For an internal presentation “Text-based tools, not just for nerds” (presentation is mostly in Dutch) I wanted to demo MkDocs with the material theme. The creator of the mkdocs-material theme already created the Docker image as an alternative way to try the theme. For the demo I wanted to run it with a minimal configuration. No errors, no extra’s and for that I created a bash script. Quick Setup or TL;DR version Download/copy and create the script ‘setup.

Tekst gebaseerde tools

Thu, 21 Mar 2019 00:00:00 +0000

I like Markdown, a lot. I use it daily for my notes, documentation and blog-posts including diagrams in Mermaid or PlantUML. When the organisation of Groskills asked me if I could give a talk I suggested to do it on Markdown based tools. The presentation was made with Reveal.js. Slides are in Dutch. See the References section below for the other version of the slides. Sources used in the presentation:

Future Tech 2019

Wed, 13 Mar 2019 00:00:00 +0000

13 March 2019 - MediaPlaza, Utrecht Sander Hogendoorn 1. Working Products, features not projects Grow products, feature by feature Complex problems require continuous exploration Cynefin framework: Wikipedia Cynefin Framework van Dave Snowden Dave Snowden Cognitive Edge STOP doing projects 2. Even shorter cycles, continuous flow Dogmagile, dogma wikipedia The “red” sprint anti-pattern. Agile Manifesto states: add customer value continuously … Automate everything! 3. Even smaller teams, self-organizing and autonomous Traditional agile doesn’t solve modern day problems.

DevOps at KPN

Tue, 05 Mar 2019 00:00:00 +0000

F5 asked me to give a presentation on my experiences with DevOps at KPN. The Summit was held at the MediaPlaza in Utrecht. It was only 30 minute presentation but the audience interaction was very good, lot’s of interesting questions. The presentation was built upon my experiences building a cloud facing IaaS platform. The slides for “DevOps at KPN, sharing my experiences …” are shared via SpeakerDeck. At the core of my presentation were these 6 words:

Coding a Better World Together

Fri, 08 Feb 2019 00:00:00 +0000

Friday 8 February 2019, Utrecht Robert “Uncle Bob” Martin was invited by the Rabobank to give a two-day workshop/presentation software engineers and software architects in Utrecht. I was unable to attend but watched the live-recording. Recording on Youtube Notes Requirements are urgent => Architecture is important “What is important is seldom urgent and what is urgent is seldom important.” Behavior is Urgent, Architecture is Important Stakeholders prioritize Urgency YOU are the engineers: responsible for Importance Building’s architecture screams what the intent is.

Creating a snapshot via the vRA API

Sun, 27 Jan 2019 00:00:00 +0000

In this post I describe the 6 steps needed to create a snapshot of a VM via the vRealize Automation API. It took me a while to figure out how to verify the state of the request. The short version is that the “state” can be checked via the URL that is send back in the POST response “Location” header. Checking the URL right after posting the request shows an “IN-PROGRES” state, the same result as in the vRA portal.

About 't Is Goud

Sat, 19 Jan 2019 00:00:00 +0000

’t Is Goud is the personal website of Albert W. Alberts. The name of the site means “it’s good”. It’s from the dialect spoken in Groningen, the most Northern provence of the Netherlands. In Dutch it would translate to “it’s gold”. So you could say there is a similarity with the New Zealand saying “good as gold”. Groningers don’t talk much so they try to say more with fewer words. Used in the dialect of Groningen there is more to it than just the phrase.

Projects

Thu, 17 Jan 2019 00:00:00 +0000

This page contains information about all kinds of projects, hardware or software that I’m interested in building or using. Tasmota Zigbee Tasmota Zigbee Zigbee2Tasmota is a lightweight Zigbee solution running on an ESP82xx Wi-Fi chip. Hence it is easier to deploy in your living room or around your home. It is largely inspired from Zigbee2mqtt but it’s a complete rewrite to make it fit on an ESP82xx with 80kB of RAM and only 1MB of flash memory.

Publii

Sun, 13 Jan 2019 00:00:00 +0000

I’m reviving my website after neglecting it for quite a while. Stepping away from Wordpress, failing Akismet upgrades and required updates almost each month. Looking at static site generators (StaticGen) and the large headless CMS collection (HeadlessCMS) I decided to try out Publii. Publii is an Open Source CMS for static websites. It generates it’s websites throug its built-in site generator. Publii publishes to AWS, Netlify, Github, GitLab or SFTP.

Cloud Foundation to Execute on Innovation

Mon, 26 Nov 2018 00:00:00 +0000

This presentation was given at the Gartner IT Infrastructure, Operations & Cloud Strategies Conference in London. Martijn Backe from VMware presented the first part: “Cloud Foundation to Execute on Innovation”. I presented the second part: “KPN CloudNL VMware (VPC) - How we enabled Digital Innovation”. Movie demo Create an Internet Facing Load Balancer with Two VMs in the back-end [2:53]: References Slides on SpeakerDeck Demo movie: KPN CloudNL VMware Create Load Balancer

Argentina 2018

Sat, 03 Nov 2018 00:00:00 +0000

Photos from our trip to Argentina in November 2018.

Open Source Summit Europe 2018 - day 3

Wed, 24 Oct 2018 00:00:00 +0000

Open Source Summit Europe 2018 Edinburgh International Conference Centre Open Source Summit + ELC Europe 2018: Keynote: Astronomy with Gravitational Waves Dr. Alexander Nitz Simon Wardley: The entire history of the PaaS vs Serverless debate, in one simple graphic: Open Source Summit + ELC Europe 2018: Keynote: Trigger’s Broom, or How I Learned to Stop Worrying and Love Open Source Dr. Julian Friedman Open Source Game Design Brenda Romero

Open Source Summit Europe 2018 - day 2

Tue, 23 Oct 2018 00:00:00 +0000

Open Source Summit Europe 2018 Edinburgh International Conference Centre The Future of AI is Data…In More Ways than You Think Eric Berlow, Co-Founder, Chief Science Officer, Vibrant Data Inc. Tim Berners-Lee Personal data stored distributed The What-If Tool: Code-Free Probing of Machine Learning Models OpenMappr, explore complex networks Building an Open Source Software Culture at Microsoft Stephen Walli, Principle Program Manager, Microsoft “Culture eats strategy for breakfast” Creating an IoT Data Layer for Collecting, Storing, Analyzing and Reacting to Data David G.

Docker Meetup Edinburgh

Mon, 22 Oct 2018 00:00:00 +0000

Monday evening, right after the first full-day of the OpenSource Summit Europe in Edinburgh a Docker Meetup! Container Runtimes, draw some lines Vincent Batts, Red Hat @vbatts, vbatts@redhat.com Slides: github.com/vbatts/talks Container Runtimes, a history chroot + unshare (mnt ns) + cgroups LXC first release Aug 2008 alive and well today https://linuxcontainers.org/ systemd-nspawn first commit in 2011 alive and well today originally just a simple test and debug utility Docker all the things 2013 python script became golang (not a single good link to the source) lmctfy 2013 academic offering dead, but still a good example of form over function rkt Dec 2014 spec-first design (appC spec) libct from odis/openVZ folks C library of container helpers (not docker or lxc related) libcontainer (now runc) 2014 to have something golang native, rather than shell-out to lxc (eventually meant more shelling-out) the original OCI runtime lxd 2014 container manager built on lxc (came after Docker made asks of lxc, then abandoned it for libcontainer) OCI Specification 2015 (image and runtime) v1.

Open Source Summit Europe 2018 - day 1

Mon, 22 Oct 2018 00:00:00 +0000

Open Source Summit Europe 2018 Open Source Summit Europe is the leading conference for developers, architects and other technologists – as well as open source community and industry leaders – to collaborate, share information, learn about the latest technologies and gain a competitive advantage by using innovative open solutions. This page contains my personal notes of the first conference day. Wanted, 10,000 Developers to Electrify the Planet Shuli Goodman, Executive Director, LF Energy

Open Source Summit Europe 2018 - Pre-conf day

Sun, 21 Oct 2018 00:00:00 +0000

Open Source Summit Europe 2018 Edinburgh International Conference Centre Sunday, the real conference has not yet started. Therefore a pre-conference day. This page contains my personal notes of that day. Control Groups v1 vs v2 Sep 2012 cgroups v2 Cgroups v2 is still work-in-progress V1 will be around for a long time, v1 functionality not in v2 Example pids controller (cgroups v1) Systemd mounts the v1 controllers under subdirectories of /sys/fs/cgroup

Carrier grade API Store

Tue, 16 Oct 2018 00:00:00 +0000

In this technical presentation the questions why, what and how of the KPN API Store were answered. At the time of the event the platform was still called “Cubes by KPN”. It is now referred to as the KPN API Store. The platform was build upon Apigee. Which was later acquired by Google. Reference Slides on SpeakerDeck KPN API Store

CTAB - KPN CloudNL VMware

Thu, 17 May 2018 00:00:00 +0000

This presentation was given at the VMware CTAB event in Berlin. Main goal was to present the vRA based portal and the user experience of creating an advanced NSX-V based loadbalancer. Advanced Load Balancer Step 1. Load Balancer Application Rule Step 2. Load Balancer Health Monitor Step 3. Load Balancer Application Profile Step 4. Load Balancer Pool Step 5. Load Balancer Service Reference Slides on SpeakerDeck Step 1.

NextGen firewall use case at KPN

Tue, 12 Sep 2017 00:00:00 +0000

This presentation was given at VMworld Europe 2017 in Barcelona. I was asked by Fortinet to talk about the use case we had at using Fortinet in combination with VMware NSX-V. Presentation Reference Slides on SpeakerDeck

SHA 2017

Fri, 04 Aug 2017 00:00:00 +0000

From 4-8 August, Netherlands SHA2017 was a non profit outdoor Hacker camp. AI Progress Management Name Server Daemon Mosh, is a replacement for SSH. It’s more robust and responsive, especially over Wi-Fi, cellular, and long-distance links. Blink Shell semver.org-style versioning Given a version number MAJOR.MINOR.PATCH, increment the: MAJOR version when you make incompatible API changes, MINOR version when you add functionality in a backwards-compatible manner, and PATCH version when you make backwards-compatible bug fixes.

Smart doorbell

Wed, 05 Jul 2017 00:00:00 +0000

It all started with the question “How to determine someone pressed the doorbell?”. My main requirements was that I did not want to mess with the existing setup or be dependant on extra components. I have seen several solutions, but sofar none of them met this requirement. Once the doorbell-button is pressed, the “signal” is send to the Wemos. The Wemos is connected to MQTT via the local Wi-Fi. Home Assistant picks up the signal from MQTT.

domoticaGrunn

Wed, 24 May 2017 00:00:00 +0000

Domotica, Internet of Things (IoT), Home Automation, geïnteresseerd in het automatiseren van je huis? Speel je alleen nog maar met de gedachte en je weet niet waar je moet starten? Kom dan eens langs bij de domoticaGrunn meetup. Op onze Meetup avonden wisselen we ervaringen uit, leren nieuwe dingen van elkaar, we doen inspiratie op en proberen ook vooral aan de slag te gaan met onze projecten. Meetup Presentaties Github Hoe het begon In maart 2017 kwamen een aantal domotica nerds bij mij thuis en werd het idee geboren om een domotica Meetup te starten.

TNW Europe 2017

Tue, 16 May 2017 00:00:00 +0000

The Next Web conference Amsterdam, May 18th and 19th 2017, session notes and booths visited. What are Millennials thinking? - “The Millennials Black Paper” by 9GAG Awkward questions and cultural differences. Enlightening but also frightening outcomes of this global study. Next month new white paper. Provoking thought Thijs Biersteker, Provoking Thought Plastic Reflection, Periscopista, Perihelion Very interesting interactive installations. Call me: +31642663650 Email: hello@thijsbiersteker.com The Deciders: Who Are the Emoji Gate-Keepers, and What Do They Do?

{CodeMotion} 2017

Tue, 16 May 2017 00:00:00 +0000

{CodeMotion} day 1 Tuesday May 16th 2017 - Amsterdam The Power of Connections Hendrik Blokhuis, Cisco Systems (CTO) You live in an exponential era. It’s time to look with “new eyes” to the world around you and the empowerment you have to change and innovate our economy & society by rethinking and reprogramming legacy processes using the new building blocks the Internet-of-Everything will offer. The Internet must be made ready to handle trillions of new interactions between people, processes, data and things, whilst being intelligent, secure, open and programmable.

ManageIQ Meetup - KPN ViperNext

Wed, 12 Apr 2017 00:00:00 +0000

Dutch ManageIQ Meetup in Amsterdam KPN Presentation Reconfigure VM & Mount ISO Reference Slides on SpeakerDeck Youtube: Reconfigure VM & Mount ISO

Kennissessie OpenSource Software

Fri, 07 Apr 2017 00:00:00 +0000

Presentation on Free and Open Source Software. Given as a knowledge session for the procurement department at KPN. The presentation OpenSource explained in LEGO OpenSource Basics Software is eating the world But Open Source is eating Software … Recommendations Accept and use FOSS Participate in the FOSS communities Determine a company wide strategy Reference Slides on SpeakerDeck Youtube: Open Source explained in LEGO Youtube: Open Source Basics Demystifying copyleft Licenses: https://choosealicense.

VMUG - KPN CloudNL VMware

Thu, 16 Mar 2017 00:00:00 +0000

This presentation was given at the VMUG event in Den Bosch. Main goal was to introduce the CloudNL concept and the user experience of simply creating an NSX-V based loadbalancer. Create Virtual Machine Create load balancer References Slides on SpeakerDeck Youtube: Create virtual machine Youtube: Create an internet facing load balancer

Docker Swarm

Wed, 18 Jan 2017 00:00:00 +0000

Docker Swarm running on six Raspberry Pi’s presented at the Docker Grunn Meetup. The Parts For this setup I used 6 Raspberry Pi’s 3b. The Cluster The final stack; the switch and powersupply are built into the bamboo Ikea bathroomset. The Presentation To prepare thePi’s and deploy Docker Swarm on the cluster I used Ansible. You can find detailed instructions on the Github page. References Github Slides on SpeakerDeck

Kasikasima dag 8

Fri, 02 Dec 2016 00:00:00 +0000

Om half zeven stond er een thermoskan met heet water voor ons klaar, rustig een kopje thee gedronken met de buurtjes en om acht uur ontbeten. De standaard routine. Om kwart over negen hebben we met Espa een wandeling door het dorp gemaakt, langs de school, het dorpshuis, de lokale bevolking die met Casave brood bezig was of het meel of het afbakken. Het eindpunt van de wandeling was de lokale souvenir-markt.

Kasikasima dag 7

Thu, 01 Dec 2016 00:00:00 +0000

Vandaag opgestaan met het eerste zonlicht. Alles opgeruimd, ingepakt en in de boot gezet. Om zeven uur gingen we varen. Na een dik half uur stopten we bij een plek waar Sidderalen zouden zijn. Die zaten er! Jack had al vrij vlot bij de ingang van een kreetje een groot exemplaar gespot. De aal werd geraakt maar wist met pijl en al te ontsnappen. Even later kwam de pijl weer boven en Richard deed nog een verwoede poging om de Sidderaal ook mee naar boven te krijgen, helaas niet gelukt.

Kasikasima dag 6

Wed, 30 Nov 2016 00:00:00 +0000

Uitgeslapen voor zover dat kan hier. Je gaat slapen wanneer het donker wordt en je wordt wakker als het weer licht wordt. ’s Avonds klets je meestal wel wat na tot een uur of acht maar de zon is al weer op voor zeven uur, lange nachten dus. De laatste dag in dit kamp, de tijd staat stil hier, het was een fantastische ervaring om hier te zijn midden in het “bos”.

Kasikasima dag 5

Tue, 29 Nov 2016 00:00:00 +0000

Relaxte dag vandaag, stukje door het bos gewandeld en uitleg gekregen over de verschillende planten en hoe ze te gebruiken zijn. Knoflook liaan voor in het eten of tegen nachtmerries, bast dun en sterk waar draagbanden van gemaakt worden. Sap van een andere bast werkt ontsmettend en weer een andere bast wordt gebruikt als vloeibare pleister. Palmbladeren worden gebruikt om mandjes en in ons geval een rugzak van te maken.

Kasikasima dag 4

Mon, 28 Nov 2016 00:00:00 +0000

We hebben het gehaald! Vandaag zijn we de Kasikasima berg opgeklommen. In twee uur en drie kwartier naar de top. Vier flinke heuvels op en af en dan nog de klim vanaf de voet naar één van de twaalf toppen. Door de warmte en vochtigheid was de tocht super zwaar. Op de top aangekomen krijg je direct weer energie door het fantastische uitzicht en de wind die daar waait. Op de top hebben we een uurtje gerust, water drinken en beetje eten.

Kasikasima dag 3

Sun, 27 Nov 2016 00:00:00 +0000

Geslapen in een hangmat samen met een groep mosquitos. Lekgeprikt maar gelukkig weinig last van. Voor het slapen gaan gisteravond nog geluisterd naar de brulapen. Tjonge wat een herrie kunnen die maken. Ook noemenswaardig is de sterrenhemel, geen strooilicht dus je ziet alles. Ik dwaal af, we zitten nu op een bankje met een kopje thee te genieten van het uitzicht in kamp Sawaniboto. Mooie plek maar het had niet veel gescheeld of we waren hier niet geweest.

Kasikasima dag 2

Sat, 26 Nov 2016 00:00:00 +0000

Om gelijk maar te beginnen het eindpunt van vandaag. We zijn nu op tussenkamp Kamakabari, een klein eilandje stroomopwaarts. Vanmorgen vroeg opgestaan, tegen half zeven, even wachten op het beloofde warm water maar uiteindelijk tegen half acht hadden we water voor de thee. Tegen achten ontbeten, tegen tienen vertrek maar dan wel op z’n Surinaams. Om elf uur gingen we op pad, nu echt de rivier op het bos in.

Kasikasima dag 1

Fri, 25 Nov 2016 00:00:00 +0000

Vanochtend vroeg heerlijk relaxed ontbeten in het Greenheart Hotel. Een prachtig hotel in authentieke stijl gerestaureerd door Yuyu en “hippie” met zakelijk inzicht. Met de taxi naar vliegveld Zorg en Hoop gereden onderweg nog even door de drive-through bank gereden. In de vertrekhal hebben we onze mede-reisgenoten Astrid en Richard voor het eerst ontmoet. Het klikte gelijk. Even na elven vertrokken we richting het “bos”. De vlucht was een belevenis op zich.

Software Circus 2016 - Amsterdam

Thu, 01 Sep 2016 00:00:00 +0000

My personal notes from this three day kick-ass conference about Cloud Native Computing 31 August, 1-2 September 2016 Pakhuis West Day 1 Wednesday August 31st, the pre-conference workshop day. Workshop from Zero to Hero by Stuart Williams, Product Manager at Weaveworks Pre-reqs: Git: https://git-scm.com/book/en/v2/Getting-Started-Installing-Git Docker: https://docs.docker.com/engine/installation/ Minikube & kubetctl: http://kubernetes.io/docs/getting-started-guides/minikube/ Workshop: $git clone https://github.com/ContainerSolutions/zero-2-hero.git $cd zero-2-hero $docker-compose pull (leave running …) follow the instructions … Note 1: minikube running causes trouble (used ports and identical name conflicts) Note 2: running the demo the first time takes some time, be patient.

TNW Europe 2016

Thu, 01 Sep 2016 00:00:00 +0000

TNW Europe, day 1 Stacy Brown-Philpot, TaskRabbit The Future of Work “We do chores, You live life.” TaskRabbit Adam Leibsohn, Giphy GIFS. What will this lead to? @adamcl “A picture is worth a thousand words.” A while ago enhancing text with emoticons showed our intent. Now we can do even more with gifs. Gifs are no longer just for laughing. Giphy Kees Kolen, EQT Partners Big bets, big wins: market domination done properly, interviewed by Owen Williams Uber, Booking.

LEAP 2016

Sun, 15 May 2016 00:00:00 +0000

Lead Enterprise Architect Program (LEAP) March 15-19, Redmond Keynote and Executive Q&A Norm Judah, CTO Microsoft Services Reimagining the World Digitally We are asking the wrong questions. Not, Who? What? When? > But Why? Start universal > Get oriented > Frame > Ideate > Iterate > Optimize > Make it personal Motivations Help people to achieve things that are important to them Building Relationships Create value by getting to know people over time

VINT 2015

Tue, 09 Jun 2015 00:00:00 +0000

“Computer says no” Living in the Age of Autonomous Decision Machines 9 juni - Spant! - Bussum Agenda tijd omschrijving 09:30 Kick Off Menno van Doorn, directeur VINT Sander Duivestein, trendwatcher VINT Pieter Jonker, Hoogleraar Vision Based Robotics, TU Delft, “Lerende Robots” Maurits Kaptein, ass. Professor Kunstmatige Intelligentie, Radboud Universiteit, “Digitale verleiding” 11:00 Pauze 11:30 Gerard Doll, CIO RDW, “Consequenties van intelligent vervoer” Roel Steenbergen, Innovatiemanager Rabobank, “Watson bij de Rabobank” John van der Wens en Mark Boog, “Poetry in Motion” 12:30 Lunch 13:30 Hella Hueck, Journaliste RTL Z, “De economie van overmorgen” Kees Stuurman, Hoogleraar normering van Informatietechnologie, Universiteit van Tilburg, “Juridische aspecten van autonome software” Sander Veenhof, kunstenaar, “De virtuele wereld breekt door” 15:00 Pauze 15:30 Mike Hearn, Bitcoin developer en futurist, “Tradenet: De toekomst van autonome organisaties” Luciano Floridi, Hoogleraar Filosofie en Ethiek, Oxford University, “Digitale Ethiek” 16:45 Afsluiting 17:00 Borrel 17:30 Einde Kick Off Menno van Doorn, directeur VINT Sander Duivestein, trendwatcher VINT

Xebicon '15

Thu, 04 Jun 2015 00:00:00 +0000

4 juni, Westergasfabriek Amsterdam 800 bezoekers Keynote - Spotify Kristian Lindwall, Anders Ivarsson Why? Teams are called squads BFS, browse, feed, search Artist Team, x, y, z Together: music player Tribe Spotify is made up out of Tribes Interface elements are owned by different Tribes All together an organic structure, people move toward other Tribes but stay connected to their original Tribe. For a squad to be successful: Explore your context _ users and stakeholders _ priorities * interfaces (to the other squads) Deliver value - early and often _ squad and core metrics (engagement is also a metric, usage et cetera) _ prototyping (new running feature) * continuous delivery Keep improving _ improve everything _ retrospectives * embrace failure (fail wall, it’s not bad to fail, just accept it) Kickass engineering _ collective code ownership _ platformize (easy to deploy, easy to backup, automate) * automate everything Leadership is about supporting the team Leadership is a behaviour, not a role

Build Amsterdam 2015

Wed, 03 Jun 2015 00:00:00 +0000

Build Tour 2015 3 June, Passenger Terminal, Piet Heinkade 27 Amsterdam New way to login! Face recognition. Hosted Web Apps: Acces to all APIs New file format, extension .appx Hosted app! Apps via git deployed to a node.js server and directly playable. IoT Windows 10 IoT Core Preview available for Minnowboard Max and Raspberry Pi 2. Mentioned: Arduino virtual shields, Netduino 3 - NETMTF, FEZ Spider, Gadgeteer on Windows 10 IoT Core

The Next Web '15, Day 2

Fri, 24 Apr 2015 00:00:00 +0000

Martin Gill - Why Most Digital Business Transformations Will Fail (And How To Avoid It) - Forrester Research Not what but how! Lord of the Rings koste 281 m leverde 2.9 b op. Trend op film gebied, sequels. Digital transformation is a journey not a destination. Watch out for the “Air Sandwich” An Air Sandwich is a strategy that has clear vision and future direction on the top layer, day-to-day action on the bottom, and virtually nothing in the middle - no meaty key decisions that connect the two layers, no rich chewy filling to align the new direction with new actions within the company.

The Next Web '15, Day 1

Thu, 23 Apr 2015 00:00:00 +0000

Neelie Kroes & Boris Veldhuijzen van Zanten open TNW2015 Introducing Out-of-the-Box thinking at the Banks, make it possible to easily invest in start-ups. Werner Vogels, CTO Amazon, @werner Customer centric company. Stubborn on the vision, but flexible in realisation. Innovation requires commitment. Willingness to be misunderstood for a long period of time. Culture + Organization + Technology. The importance of small teams (two pizza teams). Amazon Leadership Principles: Customer Obsession Leaders start with the customer and work backwards.

Synology Download Station: add search modules

Fri, 03 Apr 2015 00:00:00 +0000

The Synology Download Station is a great application for downloading torrents but sometimes it’s unable to find the things you are looking for. It happened to me and as I was looking through the settings for a way to add a search engine I found out it has to be a .dlm file. I don’t know when this was changed but I remember that I could just add a URL but ala.

devNetNoord

Thu, 29 Sep 2011 00:00:00 +0000

Hoe het begon In 2011 is devNetNoord opgericht. devNetNoord is een platform voor en door .NET developers in Noord Nederland. Het platform is initieel opgezet door medewerkers van Microsoft, Quintor, KPN en Gasunie. In de zomer van 2011 is het idee geboren om iets voor .NET ontwikkelaars te doen in het Noorden. René Broere (Quintor), Marco van der Steijle (destijds Microsoft) en Albert Alberts (KPN) maakten het idee concreet en op donderdag 29 september 2011 organiseerde devNetNoord haar eerste event.

Disclaimer

Thu, 29 Sep 2011 00:00:00 +0000

The opinions expressed on this site are my own personal opinions and do not represent my employer’s view in any way. In addition, my thoughts and opinions evolve, and as a weblog is intended to provide a semi-permanent snapshot of a point in time, you should not consider out of date posts to reflect my current thoughts and opinions.

ViNT Symposium 2011

Tue, 07 Jun 2011 00:00:00 +0000

Notities van het ViNT Symposium op 7 juni 2011 in Bussum. Presentaties zijn te vinden op slideshare.net. Menno van Doorn App Effect => informatieverslaving WiFi junk => op zoek naar HotSpots in de stad Infobesitas => informatieverslaving, belangrijkste informatie blijft niet hangen “Mobile Apps are the new hard drugs” Transitie van GUI naar NUI (Natural User Interface, touch) WYSIWYG => WYTIWis, What You Touch… IS What is Counter Culture => WikiLeaks

Jemen and Socotra in 2010

Mon, 29 Nov 2010 00:00:00 +0000

Photos from my trip to Jemen and Socotra in November 2010. Before the “Arabic Spring” in the days when there was peace and harmony 😢.

From idea to product, no need to think small

Sun, 10 Oct 2010 00:00:00 +0000

We all heard about the possibilities the internet gives us. Power to the people, right? Well the story of the Glif is a perfect example of this. Two guys, Tom Gerhardt and Dan Provost came up with an idea for an iPhone 4 tripod mount. The final result does a little bit more that just being a tripod mount but you can judge that for yourself. The basic thing that struck me was how they used the means at hand to it’s full capacity.

How to survive password hell

Mon, 15 Sep 2008 00:00:00 +0000

Keeping track of your passwords can be a real pain. Passwords for your email, your account at work or for that website where you want to leave a comment. Unless you can use one password for all of these different accounts you have to keep a list of passwords. Some store them in their head resulting in the obvious password restore options after a long holiday other store them on paper.

WalletCards on my iPhone

Sun, 11 May 2008 00:00:00 +0000

Recently I read a post on slimming down your wallet (via Lifehacker). As many of you I had my wallet filed with membership and other reward cards from the local hardware store the grocery shop and the rest of it. Some cards used regularly some used only once a year. As mentioned in the post from the unclutterer most of the companies only need the number from the card. The magnetic strips are hardly used and the barcode is just a store for the number.

Silence is FOO!

Thu, 27 Apr 2006 00:00:00 +0000

Coding foo Everybody who has read codesamples in whatever language will encounter the famous words “Foo”, “Bar” and “Foobar”. Did your mind wander of on trying to find the meaning of these words? I remember it confused me as I was looking for a deeper meaning. Well last monday my colleague Michiel send me this link to the Etymology of “Foo”. I first couldn’t believe it. There is an actual RFC document on these words.

MIX06 Day 3

Wed, 22 Mar 2006 00:00:00 +0000

Last day of this “72 hour” meeting. This last day I attended three sessions: Wiring the Web ( NGW058 ) Two members of Ray Ozzie’s team presented two of Ozzies brainchildren: Live Clipboard ( LC specification, LC screencasts ) The intention of LC is to share data between systems. Exchange data between websites but also exchange data from websites to and from the desktop. Simple Sharing Extension ( SSE specification ) This is an enhancement on RSS 2.

MIX06 Day 2

Tue, 21 Mar 2006 00:00:00 +0000

After a broken night, thanks to jet-lag, the day started with a keynote. Keynote The speaker was Joe Belfiori, little guy, big function ( Corporate Vice President of MS ). The title of the keynote was something like “Beyond the browser” and indeed internet functionality is spreading like a viral infection. Thanks to the massive adaption of broadband we now see that internet is going to be integrated everywhere. One of the great examples was the Vista Sidebar and the experience for the user it created.

MIX06 Day 1

Mon, 20 Mar 2006 00:00:00 +0000

My notes for the first day: Keynote “Big” Bill as keynote speaker. MySpace.com, very very large community site. BBC gadget to browse through TV broadcasts, an incredibly rich userinterface with great functionality; download missed episodes of a serie, share it with contacts, really fancy 3D rolodex IE7 beta 2 ( build 5335 ) is available for download. InfoCard, very userfriendly interface to sign in at trusted sites. RSS enhanced with list extensions, this extension gives the user the possibillity to sort the RSS items in different ways.