Starting from version 3.1.0 as part of the Spring Cloud 2021.0.0 (aka Jubilee) release train, Spring Cloud Gateway included support for gRPC and HTTP/2.

We will introduce the basic concepts behind gRPC and how to configure it with two examples:

• One that showcases how Spring Cloud Gateway can transparently re-route gRPC traffic without needing to know the proto definition and without having to modify our existing gRPC servers.

• Another that showcases how we can create a custom filter in Spring Cloud Gateway to transform a JSON payload to a gRPC message.

Introduction to gRPC and HTTP/2

HTTP…

Hi, Spring fans! Welcome to another installment of This Week in Spring! We've got a ton of stuff to dive into so let's get goin'!

• A Bootiful Podcast: DataStax's Christopher Bradford on the Apache Cassandra operator for Kubernetes, K8ssandra
• Accelerate Spring Apps to Cloud at Scale - Discussion with Azure Spring Cloud Customers
• Spring Authorization Server 0.2.1 available now
• Spring Cloud 2021.0.0 (codename Jubilee) Has Been Released
• Spring Cloud Function 3.2 is out!
• Spring Cloud Sleuth 3.1.0 is out!
• Spring Tips: @Controllers and RSocket
• JSON:API for Spring HATEOAS
• Living with Kubernetes: 12 Commands to Debug Your Workloads
• Hmm. I wonder what Mark Paluch's cooking something awesome with the R2DBC SPI. I wonder what...?
• Nice job, Github Actions! There's now integrated sigstore support! …

With the release of the Spring Cloud 2021.0.0 (aka Jubilee) release train we're more than happy to announce the general availability of Spring Cloud Sleuth 3.1.0. In this blog post we'll describe the most notable released features.

Here is the list of most notable features, we'll elaborate on them in the subsequent parts of this post.

• JDBC #1930
• Tomcat Valve #1329
• Spring Vault #1952
• Automatic tag table generation for documentation #1950
• Spring Cloud Deployer #1947
• R2DBC #1524
• Kafka #2013 and Reactor Kafka #1708
• Spring TX #1941
• Spring Batch #1904
• RSocket #1677
• Spring Cloud Task #1903
• Spring Cloud Config #1915
• Spring Cloud CircuitBreaker Reactive #1910
• Cassandra #1974
• Spring Session #1961
• Spring Security #2011
• Prometheus Exemplars #2039
• Spring Cloud Stream Reactive #2038
• Reactive Mongo #2044
• Abstracted Redis instrumentation #2046
• Custom Actuator for storing traces #1879
…

Hi, Spring fans! In this installment, Josh Long (@starbuxman) talks to DataStax's Christopher Bradford on the Apache Cassandra operator for Kubernetes, K8ssandra.

• KubeCon Talk blogpost part 1
• KubeCon Talk blogpost part 2
• We Pushed Helm to the Limit, then Built a Kubernetes Operator
• A Case for Databases on Kubernetes from a Former Skeptic

Spring Cloud 2021.0.0 is finally out and with it you have Spring Cloud Function 3.2

While the full list of features, enhancements and bug fixes is available here, I’d like to call out few of them in this post and provide some details.

gRPC Support

In addition to an already existing support for invoking function via AWS Lambda, RSocket, Spring Cloud Stream etc., Spring Cloud Function now allows you to invoke function via gRPC. Two ways to benefit from it.

Spring Message

Given the wide adaption of Spring Messaging, one way of benefiting from gRPC support is by embracing Spring's Message. Spring Cloud Function provides GrpcSpringMessage schema modeled after Spring's Message. It is internally converted to Spring Message to benefit from all of the existing support for Spring Messaging…

Hi, Spring fans! I love the Azure Spring Cloud platform - jointly developed with the Spring team and Microsoft - and I'm not alone! So do its users! Check out this panel discussion moderated by Adib Sakali and Asir Selvasingh with Morgan Stanley, Bosch, and Digital Realty Trust.

Hi, Spring fans! In this installment of Spring Tips (@SpringTipsLive), we continue our tour of all things @Controller, this time focusing on the Spring support for RSocket. You might also want to watch the expanded discussion of RSocket in earlier Spring Tips videos:

1. The RSocket Revolution - watch this next!
2. Raw RSocket support
3. RSocket Messaging and the @Controller component model
4. RSocket and Spring Security
5. Spring Retrosocket

Hi, Spring fans! Welcome to another installment of This Week in Spring! This last week's been nutty! Here in the US, we just celebrated the Thanksgiving holiday, and I am fat with turkey and pie, and lazy. But happy. I hope you're well fed and happy, too. Time's flying. (Also: can you believe we're a month away from the new year? I think there's like four or five weeks (and thus _This Week in Spring_s!) left in the year!)

We've got a ton of stuff to get into this week, so let's go:

• Security Report for Spring AMQP (Spring for RabbitMQ)
• Spring Boot 2.6.1 is now available
• Spring Data MongoDB - Relation Modelling
• Thymeleaf 3.0.13 now available! This new version includes security improvements, make sure to check the release notes
• In last week's installmetn of A Bootiful Podcast, I talked about reactive-systems with functional programming legend Debasish Ghosh
• The Apache Cassandra project is working hard to officially support JDK 17 in the next Apache Cassandra major release.
• I love to see how far the JVM has come. One great indicator of its progress: its garbage collector. Check out this post on …

The recently released versions of Spring AMQP (2.4.0, 2.3.12, 2.2.20) contain a fix for CVE-2021-22095, which can cause a potential OutOfMemoryError for very large messages.

Spring Boot version 2.6.0 and 2.5.7 will bring in the 2.4.0 and 2.3.12 versions of spring-amqp respectively. Users of Boot 2.4.x should override the spring-amqp and spring-rabbit versions to 2.3.12; users of Spring Boot 2.3.x should override the versions to 2.2.20.