This article introduces Java instrumentation and the ASM bytecode manipulation library, explains how tools like Jacoco insert probe code on the fly, describes the structure of Java agents, and demonstrates practical bytecode editing methods and use‑cases such as monitoring, hot‑fixing, and mocking.
The article introduces Octopus, the core automation service of 58 Group, detailing its overall architecture, the Octopus Agent lifecycle, communication mechanisms, management center capabilities, and key functional modules such as server information collection, command execution, deployment, permission control, and file transfer.
This article explains how to use Docker to containerize both the TFS continuous‑integration workflow and the TFS build agent, providing step‑by‑step commands for customizing Docker images, configuring agents, and handling authentication, followed by a brief recruitment notice for DevOps engineers.
This article demonstrates how to employ Java's java.lang.instrument API together with Javassist to create a Java agent that instruments bytecode at runtime, enabling performance monitoring without modifying the original application code.
