Open in app

Sign In

Write

Sign In

David Janes
David Janes

466 Followers

Home

About

Jan 11

Ubuntu 20.04 Kubernetes 1.26 incompatibility

UPDATE 2023–03–18 This is the way to fix this: sudo apt remove containerd sudo apt update sudo apt install containerd.io -y sudo rm /etc/containerd/config.toml — — — — — — — — — — — — — — — — — — — — — — — — — — As of 11 Jan 2023, Ubuntu 20 is broken for Kubernetes, because K8S 1.26 is not compatible with Containerd 1.5 (it needs 1.6). The workaround is to keep K8S from upgrading, and if it does, roll it back.

Kubernetes

1 min read

Kubernetes

1 min read


Feb 6, 2021

A brief history of technology

In rough chronological order. Draw your own conclusions. Leather over Fur Bronze over Leather Horse over Farmers Iron over Bronze Guns over Iron Steam over Sail AC over DC Cars over Horses Cars over Pedestrians Tanks over Trenches Tubes over Relays Transistors over Tubes ICs over Transistors Calculators over Slide Rules CD over LP Cassette over 8-Track VHS over Betamax VHS over Laserdisk TCP/IP over ISO/OSI

History

1 min read

A brief history of technology
A brief history of technology
History

1 min read


Jan 31, 2021

Sorry Blockchain — Math requires Axioms, the Internet requires Trust

I was listening to Oscar Santolalla’s excellent Let’s Talk About Digital Identity podcast the other morning — I believe this one, but won’t swear on it — and an interesting claim came up: that we could verify someone’s university graduation claim using the blockchain. Why should we do that? If…

Blockchain

1 min read

Sorry Blockchain — Math requires Axioms, the Internet requires Trust
Sorry Blockchain — Math requires Axioms, the Internet requires Trust
Blockchain

1 min read


Dec 31, 2020

JSON Web Signatures, using Node.JS and JOSE(s)

The last time I had my head up, about four years ago, JSON Web Tokens (JWT) defined by RFC 7519 were all the rage. What I didn’t know was that there’s an earlier RFC 7515 for JSON Web Signatures (JWS). …

Jose

2 min read

JSON Web Signatures, using Node.JS and JOSE(s)
JSON Web Signatures, using Node.JS and JOSE(s)
Jose

2 min read


Dec 31, 2020

How to create an X.509 Public / Private Keypair — with no prompting

You’ll end up with two files “private.key.pem” and “public.cer.pem”. If you’re just playing around — which likely you are — the “subj” is likely fine as it is for testing purposes. We’ll do something interesting with these today. Happy New Year!

X509

1 min read

How to create an X.509 Public / Private Keypair — with no prompting
How to create an X.509 Public / Private Keypair — with no prompting
X509

1 min read


Dec 17, 2020

Example of Pulling of Structured Data from Wikidata.org

Wikidata is a free and open knowledge base that can be read and edited by both humans and machines. Wikidata acts as central storage for the structured data of its Wikimedia sister projects including Wikipedia, Wikivoyage, Wiktionary, Wikisource, and others. …

Wikipedia

2 min read

Example of Pulling of Structured Data from Wikidata.org
Example of Pulling of Structured Data from Wikidata.org
Wikipedia

2 min read


Nov 14, 2020

Tools to Extract Text from Webpages

As part of my ongoing explorations to understand NLP, I decided to polish up a project I’ve had laying about for years: iotdb-extract. It provides a command line tool for figuring out the structure of web pages a library of extraction rules for some popular websites (you’re encouraged to make…

NLP

1 min read

Tools to Extract Text from Webpages
Tools to Extract Text from Webpages
NLP

1 min read


Published in FAUN Publication

·Nov 14, 2020

Quickly set up Kubernetes installations on AWS (or anywhere) using Ansible

If you’re setting up your own Kubernetes (K8S) installation, there are usually quite a few steps to be followed, e.g. turning off swap, installing packages, and so forth. …

Kubernetes

2 min read

Quickly setup Kubernetes installations on AWS (or anywhere) using Ansible
Quickly setup Kubernetes installations on AWS (or anywhere) using Ansible
Kubernetes

2 min read


Nov 4, 2020

Thoughts on using Schema.org for data modelling — common properties

Schema.org is “…a collection of shared vocabularies webmasters can use to mark up their pages in ways that can be understood by the major search engine…”. I almost always use the schemas from schema.org as the starting point for modelling data in my projects. One issue I usually run across…

Modeling

2 min read

Thoughts on using Schema.org for data modelling — common properties
Thoughts on using Schema.org for data modelling — common properties
Modeling

2 min read


Oct 28, 2020

Three Streams Model for NLP

Introduction In our previous paper, we described a document processing model for Natural Language Processing (NLP), and how to identify the position of Entities discovered within those documents. In this paper, we’ll discuss a “three streams” model of NLP Processing — each stream being a different type of useful and distinct…

NLP

3 min read

Three Streams Model for NLP
Three Streams Model for NLP
NLP

3 min read

David Janes

David Janes

466 Followers

Entrepreneur. Technologist. Mercenary Programmer.

Following
  • Chris Messina

    Chris Messina

  • Jeremy Keith

    Jeremy Keith

  • Joseph Fung

    Joseph Fung

  • Rob Tyrie

    Rob Tyrie

  • COVID Credentials Initiative

    COVID Credentials Initiative

Help

Status

Writers

Blog

Careers

Privacy

Terms

About

Text to speech