Adds spring-boot-startup-time/, the companion project for BLOG-618: a runnable Spring Boot 4.1.1 application on JDK 25 that installs BufferingApplicationStartup and FlightRecorderApplicationStartup behind a system property, and a /diag/startup endpoint that computes step self time -- the number /actuator/startup does not give you and the one that names the actual culprits. Captured under docs/output/: the step tree sorted both ways, the same startup as JFR events, a +5000-class experiment putting 0.11 ms per scanned class on the classpath scan tax, the silent truncation a 2048-step buffer performs, and JDK 25 AOT cache timings (6.93 s to 4.82 s). Post body and metadata live in post/. Moves the existing Actuator project into actuator-in-production/ so the repository holds one directory per article; the root README is now an index.
14 lines
460 B
YAML
14 lines
460 B
YAML
# Pairs with SecuredActuatorConfig.
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management:
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endpoints:
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web:
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exposure:
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include: "*"
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endpoint:
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health:
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# Anonymous callers get {"status":"UP"}. Authenticated ACTUATOR callers get the
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# per-contributor breakdown. This is the setting that keeps a health endpoint useful to
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# your operators without telling an attacker which of your dependencies is wobbling.
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show-details: when-authorized
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roles: ACTUATOR
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