Prior to this commit, applications could declare Actuator Endpoints
using web framework-specific annotations, such as `@ServletEndpoint`,
@ControllerEndpoint and @RestControllerEndpoint.
Such annotations are closely tied to the programming model of specific
web technologies, such as Servlet or Spring MVC. Unlike other
`@Endpoint` support, they are not portable and will not work
transparently over blocking/reactive and transports.
Because of the strong adherence of this support with the underlying
infrastructure, it makes it impossible to evolve the implementation of
Actuator support without breaking this use case. The reference
documentation has been advocating for using `@Endpoint` and
`@*Operation` for custom endpoints for a long time now.
This commit deprecates this specific support in favor of the recommended
approach.
Closes gh-31768
Deprecates the support for simpleclient but ensures that it can work in
conjunction with support for the latest Prometheus client
auto-configuration.
This involves breaking changes to update public classes to support the
latest Prometheus client. Deprecated support for Prometheus simpleclient
is provided in renamed classes.
See gh-40023
At present, Actuator sessions endpoint is supported only on a Servlet stack and also requires an indexed session repository. With Spring Session moving to non-indexed session repositories as a default for some session stores, this means that sessions endpoint won't be available unless users opt into a (non-default) indexed session repository.
This commit updates SessionEndpoint so that it is able to work with a non-indexed session repository. In such setup, it exposes operations for fetching session by id and deleting the session.
Additionally, this also adds support for reactive stack by introducing ReactiveSessionEndpoint and its auto-configuration support.
See gh-32046
Andy Wilkinson
Phillip Webb
Moritz Halbritter
Johnny Lim
cms04
Ahmed Ashour
Khan, C M Abdullah
Spencer Gibb
Brian Clozel
Tommy Ludwig
Scott Frederick
Wzy19930507
Tobias Lippert
Vedran Pavic