Chapter 7. Taking a peek inside with the Actuator

This chapter covers

  • Actuator web endpoints
  • Adjusting the Actuator
  • Shelling into a running application
  • Securing the Actuator

Have you ever tried to guess what’s inside a wrapped gift? You shake it, weigh it, and measure it. And you might even have a solid idea as to what’s inside. But until you open it up, there’s no way of knowing for sure.

A running application is kind of like a wrapped gift. You can poke at it and make reasonable guesses as to what’s going on under the covers. But how can you know for sure? If only there were some way that you could peek inside a running application, see how it’s behaving, check on its health, and maybe even trigger operations that influence how it ...

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