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Professional notes by Craig Johnston
long-form, short-form, working drafts · since 2008
VOL. XIX · MMXXVI
137 NOTES IN PRINT

Posts

137 NOTES
XLVII

Linear Algebra: Eigenvalues and Eigenvectors Part 1

Linear Algebra Crash Course for Programmers Part 6
LINEAR ALGEBRALINEAR ALGEBRA: PYTHONMATRICESMATH
2019-07-30
XLVI

Linear Algebra: Vector Spaces and Subspaces

Linear Algebra Crash Course for Programmers Part 5
LINEAR ALGEBRALINEAR ALGEBRA: PYTHONMATRICESMATH
2019-05-25
XLV

Linear Algebra: Matrix Inverses and Determinants

Linear Algebra Crash Course for Programmers Part 4
LINEAR ALGEBRALINEAR ALGEBRA: PYTHONMATRICESMATH
2019-03-20
XLIV

Linear Algebra: Systems of Linear Equations

Linear Algebra Crash Course for Programmers Part 3
LINEAR ALGEBRALINEAR ALGEBRA: PYTHONMATRICESMATH
2019-01-15
XLIII

Linear Algebra: Matrices

Linear Algebra Crash Course for Programmers Part 2a
LINEAR ALGEBRALINEAR ALGEBRA: PYTHONMATRICESMATH
2018-12-08
XLII

Linear Algebra: Vectors

Crash Course for Python Programmers Part 1
LINEAR ALGEBRALINEAR ALGEBRA: PYTHONMATHPYTHON
2018-11-01
XLI

Kafka on Kubernetes

Deploy a highly available Kafka cluster on Kubernetes.
KAFKAKUBERNETESDATA
2018-09-25
XL

Ethereum Ethstats

Learning the Ethereum Blockchain through its metrics.
ETHEREUMBLOCKCHAIN
2018-09-22
XXXIX

Ethereum Blockchain on Kubernetes

Deploy a Private Ethereum Blockchain on a Custom Kubernetes Cluster.
ETHEREUMKUBERNETESBLOCKCHAIN
2018-09-04
XXXVIII

Blockchain

A Conceptual and Motivational Overview
BLOCKCHAIN
2018-09-01
XXXVII

Kubernetes Port Forwarding for Local Development

Using kubefwd
DEVELOPMENTKUBERNETESCODING
2018-08-11
XXXVI

FaaS on Kubernetes

Kubeless, Python and Elasticsearch
ELASTICSEARCHPYTHONKUBERNETESSERVERLESS
2018-07-28
XXXV

Elasticsearch Essential Queries

Getting started with Elasticsearch
ELASTICSEARCHDATA
2018-07-26
XXXIV

Remote Query Elasticsearch on Kubernetes

Local workstation-based microservices development
KUBERNETESELASTICSEARCHDATA
2018-07-25
XXXIII

High Traffic JSON Data into Elasticsearch on Kubernetes

Instant, reliable, send and forget.
KUBERNETESELASTICSEARCHDATAJSON
2018-07-18
XXXII

Kibana on Kubernetes

Visualize your Elasticsearch data.
KUBERNETESELASTICSEARCHDATAKIBANA
2018-07-15
XXXI

Production Grade Elasticsearch on Kubernetes

Setup a fast, custom production grade Elasticsearch cluster.
KUBERNETESELASTICSEARCHDATA
2018-07-14
XXX

Kubernetes Team Access - RBAC for developers and QA

Role Based Access Control
KUBERNETESDEVOPSSECURITYKUBECTL
2018-07-10
XXIX

Python Data Essentials - Matplotlib and Seaborn

A beginners guide.
PYTHONDATADATA SCIENCEDATA VISUALIZATION
2018-07-08
XXVIII

Webpage to PDF Microservice

Automate PDF Report Generation
MICROSERVICEPDFDATADOCKER
2018-07-01
XXVII

A Microservices Workflow with Golang and Gitlab CI

Continuous Integration & Deployment
MICROSERVICESDEVOPSGOLANGGITLAB
2018-06-22
XXVI

Python Data Essentials - Pandas

A data type equivalent to super-charged spreadsheets.
PYTHONDATADATA SCIENCE
2018-06-17
XXV

Python Data Essentials - Numpy

Powerful N-dimensional array objects.
PYTHONDATADATA SCIENCE
2018-06-16
XXIV

Reverse Proxy in Golang

Retrofit security proxy to prevent XSS and code injection.
DEVOPSSECURITYGOLANG
2018-06-15
XXIII

Golang to Jupyter

Golang with Jupyter Notebooks
GOLANGJUPYTER NOTEBOOKS
2018-06-10
XXII

Essential Python 3

Programming in Python
PYTHON
2018-05-31
XXI

CORS on Kubernetes Ingress Nginx

Painless CORS header configuration in Kubernetes
KUBERNETESSECURITYINGRESS
2018-05-28
XX

JWT Microservice, Tokenize Remote APIs

Using txToken to create JWT Tokens from JSON POST data.
KUBERNETESSECURITYINGRESSDOCKER
2018-05-27
XIX

Basic Auth on Kubernetes Ingress

Basic Auth is supported by nearly every major web client, library, and utility.
KUBERNETESSECURITYINGRESS
2018-05-19
XVIII

Let's Encrypt, Kubernetes

Automated, secure and free 443/https with signed x509 certificates for Ingress.
KUBERNETESSECURITYINGRESS
2018-05-18