Scope: apt-install Ansible, create an ansible user on the controller, provision remotes, and run a small project. Replace jenkins.maksonlee.com as […]
Goal: Install Spark 4.0.0 (Hadoop 3, Connect build) at /opt/spark, but keep Classic mode for now by setting SPARK_CONNECT_MODE=0.We’ll remove
This guide connects Zabbix 7.4 at https://zabbix.maksonlee.com to Keycloak at https://keycloak.maksonlee.com (realm maksonlee.com) using SAML 2.0, and enables Just-in-Time (JIT)
Summary: Ubuntu 24.04’s repo installs MariaDB 10.11.x. This guide adds MariaDB’s official APT repo to install MariaDB 11.4, secures the
Need Python 3.11 on Ubuntu 24.04 (which ships 3.12)? Use pyenv to install 3.11 side-by-side without touching /usr/bin/python3. At a
In this post, we’ll set up Kafbat UI, a modern web-based Kafka management interface, to work with a secure Kafka
In the previous post, How to Install Kafka 4.0 on a Single Ubuntu 24.04 Node with HAProxy SSL Termination, we
Introduction Apache Kafka 4.0 introduces KRaft mode (ZooKeeper-free) as the default. In this guide, we’ll install Kafka 4.0 on a
When deploying Ceph RGW Multisite, it’s common to span zones across different regions—Asia, Europe, America—connected by wide-area networks. These connections
In this post, we combine and simplify the following two guides into a single-node Ceph test environment: This setup is
