What is Ansible?​

Ansible is an open-source automation tool designed to simplify IT infrastructure management, application deployment, and task automation.

Before diving into Ansible, let's familiarize ourselves with some core concepts:

• Control node: A machine where Ansible is installed and commands are executed. From the control node, we can manage and operate multiple machines.
• Managed node: The remote machine or target being managed. These are the servers or devices you wish to operate on.
• Inventory: A way to group managed machines for easier management.
• Playbook: A blueprint for automation, defining and orchestrating the tasks to be performed.

I've recently been learning how to write a Gradle plugin and want to document my insights.

Types of Plugins​

There are three ways to implement a Gradle plugin: Script plugins, Precompiled script plugins, and Binary plugins.

• Script plugins: The plugin logic is implemented directly in the build.gradle file and can only be used in the current build.
• Precompiled script plugins: The plugin logic is implemented in a separate file (either .gradle or .gradle.kts) within the project and can be used across multiple builds in the project.
• Binary plugins: The plugin logic is implemented in a standalone project and packaged as a JAR file, which can be referenced and used in other projects by including the JAR file.

In this article, we'll create a Binary plugin using a separate project.

In Java programming, inner classes and static inner classes are two important concepts. They allow defining one class within another, thereby improving code readability and organization. This article will provide a detailed explanation of the concepts, use cases, underlying implementation, and differences between inner classes and static inner classes.

Recently upgraded SpringBoot to 2.7.5, found that swagger is not working well. After searching online, I found that the problem existed since version 2.6.6. Looking at springfox's GitHub, I saw that someone had raised an issue back in 2020, and it's still not closed. The solutions are quite cumbersome. I plan to replace springfox with springdoc.

Configuring multiple data sources in Spring Boot and using JOOQ to generate code for each data source.

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