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Angular – Dynamic Component and Service Loading

This post describes how to implement lazy or dynamic component loading with angular, based on an Angular 10 demo implementation. In Angular applications, it is sometimes necessary to load components or services dynamically/lazily and asynchronously at runtime. Just think of loading captcha, promotion, or advertisement components. Manual component loading with Angular is achieved very easily once you have seen an example implementation, and that’s what I provide. Assume an existing Angular application or at least Read more…

By Fabian, ago

Getting started with Microcontroller Programming – ESP8266

During the 3rd Corona Lockdown in Austria, I searched for a new private project and decided to test something new. So I tried myself in programming microcontrollers.This post shares my first impressions, experiences, and ready-to-use code snippets for programming ESP8266. The associated code samples can be found on GitLab. Find a Suitable Microcontroller Since I’m deep into developing all sorts of web applications, I searched for a microcontroller with a built-in WiFi chip and decided Read more…

By Fabian, ago

Set up your own VPN

A Virtual Private Network (VPN) is used to extend an existing private network across the internet (public network). VPN enables connected devices all over the world to interact through an encrypted connection as if they were connected directly to the private network. Undoubtedly this opens several obvious advantages. Therefore, it’s not surprising that almost every company and also many private technically versed households hold their own VPN-Server. In the last 10 years, I have set Read more…

By Fabian, ago

Synology – Import Photo Station Data into Moments

I recently bought a Synology DS218+ to manage data and especially photos. For this purpose, Synology offers different packages that can be installed within the Network Attached Storage to extend the feature set.To fulfill my photo managing use-case (upload/backup, edit, group photos automatically according to topics and persons, …), I need two independent working packages called Photo Station and Moments. Problem Description Both packages, of course, use it’s own database managing files, index, and so Read more…

By Fabian, ago

Play with Docker (PWD) – An Amazing One-Click Docker Playground Project

Last week I found an amazing valuable in-browser Docker solution hacked by Marcos Nils and Jonathan Leibiusky and sponsored by Docker Inc.   About PWD PWD is a Docker playground that allows launching and using Docker Containers in your browser within seconds. You don’t need to install anything!!!Just visit https://labs.play-with-docker.com, log in with you Docker Hub user and play around with a free Alpine Linux Docker Container in your browser. Of course, the base Alpine Linux container Read more…

By Fabian, ago

Private DNS-Server in 3 Steps

There are several reasons to use a private DNS-Server within a network.
This post is about how to set up a private DNS-Server based on Pi-hole and using Docker. Pi-hole is a very lightweight, scalable, robust, open-source software that provides a beautiful and responsive web interface to control the DNS-Server and view statistics.

By Fabian, ago

Dynamic OAuth Client Configuration using Spring Security

OAuth 2.0 is the industry-standard protocol for authorization or to be precise a specification for issuing access tokens defined in RFC 6749. It focuses on client developer simplicity while providing specific authorization flows for different kinds of applications.For a detail description of the different OAuth 2.0 flows, I recommend reading through this post. Problem Description The configuration of OAuth consists of some OAuth provider-specific server configuration (server endpoints) and a client configuration (clientID, secret, accessTokenUri, scope…). Read more…

By Fabian, ago

Building a Kubernetes Cluster within 15 minutes

In this blog post, I provide a basic guide on how to become a Kubernaut and set up your own Kubernetes Cluster. Kubernetes (K8s) … is Greek for helmsman or captain. And this is what Kubernetes is about – Shipping your containerized applications. Kubernetes is a system for automating deployment scaling management of containerized applications. Kubernetes manages the Computing Infrastructure Networking Infrastructure Storage Infrastructure for your containers. It manages everything around your application. Read more. Read more…

By Fabian, ago

A basic introduction into Jigsaw and the impact on Java-Application startup time as well as the footprint

Years ago monolithic software often seems widespread while in recent years developers have focused on structuring their application architecture into technical components to achieve maintainable self-contained software units. Since Java offered no direct support to separate different parts of software functionality, using Maven modules in combination with naming conventions has been a quite widespread approach. Introduction to Jigsaw With Jigsaw a general module system was introduced into Java 9 which provides the native module formation Read more…

By Fabian, ago