This commit adds a new configuration property,
`spring.reactor.context-propagation` that configures the context
propagation mode for Reactor operators. By default the value is set to
"AUTO" for reinstating automatically context values as ThreadLocals
within Reactor operators. The "LIMITED" mode restricts this feature ot
the "tap" and "handle" operators but has a slightly lower footprint.
Closes gh-34201
This commit removes the `KeyValues` listed in the Spring Boot reference
documentation, since now support is implemented in Spring projects
directly and documentation is maintained there.
This change adds links to the relevant sections in the Spring Framework
and Spring for GraphQL reference docs.
Prior to this commit, we would advise developers, as migration path from
Spring Boot 2.0-x metrics, to create `GlobalObservationConvention` beans
for the observations they want to customize (observation name or key
values).
`GlobalObservationConvention` are currently applied **in addition** to
the chosen convention in some cases, so this does not work well with
this migration path.
Instead, instrumentations always provide a default convention but also a
way to configure a custom convention for their observations. Spring Boot
should inject custom convention beans in the relevant
auto-configurations.
Fixes gh-33285
Rename `/actuator/httptrace` to `/actuator/httpexchanges` to better
describe its purpose and to remove confusion with distribute tracing.
This change also takes the opportunity to improve the code by making
the `HttpExchange` class (previously `HttpTrace`) fully immutable.
Closes gh-32885
Co-authored-by: Andy Wilkinson <wilkinsona@vmware.com>
This commit moves the entire Metrics auto-configuration for Spring MVC
to the new `Observation` API and the instrumentation contributed in
Spring Framework.
Closes gh-32538
