0 Exposing Kubernetes Services to the internet using Traefik Ingress Controller
Three services have been deployed to my Kubernetes cluster running on a public cloud environment. These services expose port for…
Author Lucas Jellema
Lucas Jellema
Lucas Jellema, active in IT (and with Oracle) since 1994. Oracle ACE Director and Oracle Developer Champion. Solution architect and developer on diverse areas including SQL, JavaScript, Kubernetes & Docker, Machine Learning, Java, SOA and microservices, events in various shapes and forms and many other things. Author of the Oracle Press book Oracle SOA Suite 12c Handbook. Frequent presenter on user groups and community events and conferences such as JavaOne, Oracle Code, CodeOne, NLJUG JFall and Oracle OpenWorld.
0 Moving message threads to different group using the Yammer API
At AMIS we are quite happy users of Microsoft Yammer. Days with 10 or more messages are no exception and…
0 Building a Conference Session Agenda with Oracle APEX – notes on Pivot, Modal Popup and jQuery
AMIS is part of the Conclusion ecosystem of over 20 companies, each with their own specialty and identity. Several times…
0 Running an enriched Jupyter Notebook runtime in a Docker Container – locally or cloud side
Data Wrangling is a crucial stage in the data science workflow. Or in any workflow that starts from raw data…
0 Some neat APEX tricks while building a Session Like application for our Conference
AMIS is part of the Conclusion ecosystem of over 20 companies, each with their own specialty and identity. Several times…
0 Creating a Katacoda scenario – A Tailor Made On Line Tutorial Environment – for example for Jupyter Notebook
Learn new technologies using real environments – right in your browser. Katacoda is an online platform that offers hundreds of…
1 Some Notes on my small steps with Oracle APEX
In this article, I will share some of my personal findings and discoveries as I start out building a small…
0 Oracle Analytics Cloud – Data Flow to produce a Date Value and Timeline to Visualize the time related data
In two earlier articles on Oracle Analytics Cloud I have introduced the Oracle OpenWorld 2018 Session Catalog Data Set (First…
3 Quickly developing and hosting your friendly neighbourhood application – for free using … Oracle APEX
My challenge: my wife wants to set up a system for some of our friends and relatives to let each…
0 Creating a Data Flow in Oracle Analytics Cloud to enriching with Geo Encoding to Map visualization of data
In this article, I will show how I have created a Data Flow in Oracle Analytics Cloud to enrich a…
0 First steps with Oracle Analytics Cloud – Gather, Explore, Wrangle, Visualize
Data analytics is what turns data into business value. Oracle has a long history in Data Analytics – from Oracle…
1 Changing views on integration – from Enterprise Service Bus to API Gateway, Serverless and iPaaS
If your tool is a hammer, every problem looks like a nail. Many of us have seen situations where this…
1 Expose Docker Container services on the Internet using the ngrok docker image
The challenge: you are running a service, API or web application in a Docker container, locally on your laptop or…
0 Don’t ask what you can do for documentation – ask what documentation can do for you! (a top down perspective on documentation)
How much documentation is enough documentation? What are the requirements in the definition of done regarding documentation? Cannot simply all…
0 Finding the shortest path from Country A to Country B – using Neo4J and Node
Graph Databases are good at recording nodes and edges – and even more at performing queries that traverse the edges.…
0 Session Catalog for Oracle OpenWorld & CodeOne 2018 in JSON files
The Oracle OpenWorld and CodeOne 2018 conferences took place in the last week of October 2018. Together, over 1500 sessions…
0 First steps with Oracle Self Service Integration Cloud
An important part of enabling optimal use of SaaS applications is integrating various functions in said applications. Events in one…
0 Internet Intelligence – Checking on the accessibility of your web application from Anywhere in the world – for free with Oracle Cloud Infrastructure
A valuable capability that organizations using Oracle Cloud Infrastructure have available is internet intelligence. This capability allows you to monitor…
0 Building a Conference Session Recommendation engine using Neo4J Graph Database
This article describes a use case for which a traditional SQL-powered relational database approach can provide a solution – but…
0 CQRS through Twitter – more fun than meaning
As part of my 50 Shades of Data presentation, I talk about CQRS – Command Query Responsibility Segregation. The idea…