I have a Spring Boot Reactive application using Functional Endpoints ( Kotlin) that uses Spring Cloud Sleuth. I want to customize the response headers to include the trace id. I looked at the manual and saw the section on using the TraceFilter : 1
I tried to do the same using a TraceWebFilter, but it doesn't expose the constructors. Is there a way to implement this customization when using the Reactive Web Framework.
I am using version 2.0.0.M5 for Spring Cloud Sleuth
Thanks in advance!
Please check out the latest master - we've migrated to Brave. You can write your WebFilter that will delegate to TraceWebFilter. Or you can just copy our TraceWebFilter and alter it in the way you need to.
Related
If I understand the answer to this question correctly, Spring Cloud Sleuth will be replaced by Micormeter Tracing with Spring Boot 3. My experiments with Spring Boot 3 milestone 3 to implement tracing have failed so far. Is there an example project somewhere that I can use to guide me.
BTW: Here are my experiments https://github.com/stse/spring-boot-otel. I try to use micrometer tracing and open telemetry to push traces to new relic via Otlp and Grpc.
This blogpost from Spring Team will help to set it up: https://spring.io/blog/2022/10/12/observability-with-spring-boot-3
Also, I have come up with a sample Spring Boot 3 + Micrometer project here - https://github.com/kishorek/java/tree/main/spring-observability-demo.
I am using Zipkin Brave as distributed tracing implementation. I have created a python service consumed by the Spring boot service. Please refer to the README.
Can Spring Cloud Data Flow be used in Spring5 applications - NOT Spring Boot - my current employer seems to view Spring Boot applications as insecure (I've no idea why) in anyway I'd like to try use this stack for an integration project, so is it possible to use it without Spring Boot?
With Spring Cloud Data Flow you can deploy streams, tasks and batches.
This is all based on Spring, Spring Cloud and Spring Boot. Spring Boot is nothing else as a preconfigured Spring stack.
Spring Data Flow is a runitme that usually needs a cloud infrastructure like Kubernets.
I'm not sure if you really are looking for that or more for something like https://spring.io/projects/spring-integration
I am trying to migrate my existing spring boot 1.5 resource server (oauth2) to spring boot 2.x, while do so i am facing difficulties in providing reactive support for the same. It looks like i can not use reactive webflux when i use pring-cloud-starter-oauth2, i have few questions:
does spring boot 2.0.3 supports webflux + oauth2 resource servers using #EnableResourceServer, is yes then what is right way to implement it?
If it does not support, what are other possible options? Spring 5 security documentations says that it does not support authorization server and resource server at this moment.
Thank you in advance
Short answer: no.
There's no support to implement your own Authorization nor Resource server using webflux.
I have services built in spring boot 2.0.2. I`m using redis and solrj.
Now if i want to get metrics of redis and solr. It don`t show in
http://localhost:8080/actuator/metrics
Is there any way e.g making custom endpoint to get redis and solr metrics?
Any help would be appreciated..
Yes, it should be possible.
Spring boot 2's default metrics framework is Micrometer
When this framework is integrated into spring boot application (via starter as usual), any metrics reported to micrometer will immediately appear in spring boot actuator.
So the question is whether the redis/solrj integration expose Metrics or not.
If they are not, you'll have to understand what exactly you want to measure and plug in the integration.
Here is the example:
import io.micrometer.core.annotation;
#Timed("my-redis-calls")
public void doSomethingInMyCode() {
//call redis here
}
Of course, there is also a programmatic interface, using annotations in not mandatory
The code shown in Mark Bramnik's answer doesn't specifically give you timing for Redis client calls, it gives you timing for doSomethingInMyCode method, which can be different.
Micrometer support seems to be available in the Lettuce 6.1 release.
MeterRegistry meterRegistry = …;
MicrometerOptions options = MicrometerOptions.create();
ClientResources resources = ClientResources.builder().commandLatencyRecorder(new MicrometerCommandLatencyRecorder(meterRegistry, options)).build();
RedisClient client = RedisClient.create(resources);
https://lettuce.io/core/release/reference/index.html#command.latency.metrics.micrometer
I'm trying to implement Spring Boot Actuator on a non "Boot Application", is there a way to configure a pattern to endpoints like endpoint/health,endpoint/metrics? Then I'll create a second realm in my existing Spring Security configuration, I tried the documentation but I could not find a thing about.
Thanks.
Did you mean management.contextPath=/endpoint (docs here)?