Environment Setup and Local Runbooks
Explore how to set up a consistent local development environment for Spring Authorization Server by using Java 25, the Gradle wrapper, and containerized services with Docker Compose. Learn to configure network discovery and test token endpoints to ensure reliable OAuth 2.0 authorization infrastructure before deployment.
We'll cover the following...
Setting up a consistent local development environment prevents configuration drift and ensures that our application behaves predictably before it ever reaches a production server.
In this lesson, we establish our operational baseline for the Spring Authorization Server. We will move away from legacy manual installations and brittle, standalone commands and instead use a modern toolchain that leverages the Gradle wrapper and containerized network discovery. This approach ensures that whether we compile locally or deploy remotely, our authorization infrastructure runs securely and reliably.
Toolchain and environment baseline
Before compiling the application, we must verify our foundational toolchain. Our Spring Authorization Server requires Java 25 as the target runtime environment. Although building with newer releases like JDK 26 is supported, we compile against Java 25 to ensure stability across our deployment pipeline.
We avoid global build tool installations, as system-wide Gradle setups introduce version mismatches across developer machines. Instead, we mandate the use of the Gradle wrapper (./gradlew). The wrapper ensures that the exact version of Gradle that our project requires is downloaded and used automatically, which supports reproducible builds.
The following diagram ...