Connecting a UPS to an OpenWRT router and exposing it to a Synology NAS
On connecting an UPS device to an OpenWRT router and accessing the UPS information from a Synology NAS.
Latest
Leveraging conditional HTTP requests and Octokit hooks to avoid hitting rate limits against the GitHub REST API
On leveraging conditional HTTP requests and Octokit hooks to avoid hitting rate limits against the GitHub REST API
Simulating a corporate proxy environment using Kubernetes Network Policies
Practical example on how to replicate an environment with a corporate proxy with the help of Kubernetes Network Policies.
DNS over HTTPS with AdGuard Home running in Kubernetes, behind Traefik
Migration journey of AdGuard Home from a Raspberry Pi in a private network (backed by an OpenWRT Router) to a public Kubernetes cluster, behind a reverse proxy like Traefik.
Remediating the Log4Shell CVE in a legacy closed-source Spring Boot application
On how to update a legacy and closed-source Spring Boot executable JAR after applying the mitigation measures recommended against the Log4Shell vulnerability.
Merging dynamic configuration data in Helm Charts
On how to merge dynamic data with Helm Charts
Handling YAML in a Spring Boot based REST API
On how to add support for YAML in a Spring Boot based REST API
Batch writes to Google Cloud Firestore using the Apache Beam Java SDK on Google Cloud Dataflow
On how to leverage Apache Beam DoFn lifecycle methods to optimize writing to Google Cloud Firestore, when running in Google Cloud Dataflow.
Leveraging Kubernetes CronJobs for automated backups of a headless Ghost blog to AWS S3
On how to leverage Kubernetes CronJobs to implement a simple automated backup solution of a headless Ghost blog to S3.
Creating a mid-circle animated radial gauge in Flutter
This blog post walks through building a simple and animated mid-circle radial gauge widget in Flutter.
Using system environment variables with Kustomize
After a general overview of what Kustomize allows to do, this blog post is more about giving few tips about how we can leverage system environment variables to parameterize Kustomize files.
Migrating this blog to the JAMstack: Gatsby as the FrontEnd, with Ghost as a headless CMS running in a self-hosted Kubernetes cluster
This blog post depicts how a last year experiment of running this Ghot blog in Kubernetes went further by migrating to the JAMstack: Gatsby as the FrontEnd (deployed to Netlify) and Ghost as a headless CMS running in Kubernetes.
ghost
This Ghost Blog is now running with Let's Encrypt in a cheap bare-metal Kubernetes Cluster (on Hetzner Cloud) — Part 3/3
On how to run a Ghost blog with Let's Encrypt in a cheap bare-metal Kubernetes Cluster in Hetzner Cloud
ghost
This Ghost Blog is now running with Let's Encrypt in a cheap bare-metal Kubernetes Cluster (on Hetzner Cloud) — Part 2/3
On how to run a Ghost blog with Let's Encrypt in a cheap bare-metal Kubernetes Cluster in Hetzner Cloud
maven
About Maven Archetypes
The goal of this tutorial post is to first give a quick introduction to Maven Archetypes, to see how useful they can be and how we can easily create and use one. And finally we will walk through few tips I think can be useful to bear in mind when working with Maven Archetypes.
ghost
This Ghost Blog is now running with Let's Encrypt in a cheap bare-metal Kubernetes Cluster (on Hetzner Cloud) — Part 1/3
On how to run a Ghost blog with Let's Encrypt in a cheap bare-metal Kubernetes Cluster in Hetzner Cloud
android
Fixing Cleartext Traffic Errors in Android Pie 9.0 and higher
This blog post covers different strategies to fix Cleartext Traffic errors in Android Pie 9.0 and beyond.
jmx
Changing the logging level of a running JVM application with jmxterm and Logback, without any downtime
We are going to see how to change the logging level of a running JVM application with jmxterm and Logback, without any application downtime
graalvm
GraalVM with JPA-based applications (Part 1)
The goal of this blog post is to go beyond the basic HelloWorld program, and see how we can leverage GraalVM against a sample real-world JPA-based application, able to interact with a database. We will walk through what can be done along with the potential limitations.
ghost
Adding Code Syntax Highlighting to a Ghost Blog with Prism.js
Ghost is an awesome and user-friendly Open-Source platform for blogging. But by default, it does not support syntax highlighting, which may not be very practical if you happen to add code snippets to your posts. Thankfully, Ghost is very easy to customize in different ways, and one way we are
jpa
Announcing an unofficial DataNucleus Gradle Plugin
Following my previous article on JPA enhancement in general and particularly how to perform build-time enhancement / weaving using DataNucleus and Gradle Ant Tasks, a promise is a promise :). I am excited to announce datanucleus-gradle-plugin, an open-source plugin for Gradle-based projects. It aims at providing the same set of capabilities as
jpa
DataNucleus JPA Enhancement with Gradle
A notable behavior of JPA providers is to enhance JPA classes, by modifying their bytecode to add few capabilities. DataNucleus (DN) currently provides a Maven Plugin for calling its Enhancer. This article walks through calling DN Enhancer in a Gradle build script in a very efficient way.
junit
Running Java Integration Tests against a PostgreSQL Embedded database
Today, I'm going to walk you through running integration tests on the JVM against a real production-like PostgreSQL database. All without losing in terms of overall testing time or performance (especially when you have a database with hundreds of tables). In-memory databases (e.g., H2, HSQLDB, SQLite, ...) are
vim
Saving a read-only file edited with Vi/Vim
How to save a read-only file edited with Vi or Vim without losing your changes