Be aware of “opentracinqZipkin”, when you update to “MicroProfile 3.0” using “OpenTracing” with “OpenLiberty”

Today, just a very short note. You should be aware of opentracinqZipkin when you use  MicroProfile OpenTracing with OpenLiberty, because I noticed with the update to MicroProfile 3.0 I had a problem with usr:opentracinqZipkin-0.31. I created an issue on OpenLiberty

“MicroProfile 2.1 includes mpOpenTracing-1.2. MicroProfile 3.0 includes mpOpenTracing-1.3. Please make sure you are using the Zipkin sample built for mpOpenTracing-1.3. It can be downloaded at https://github.com/WASdev/sample.opentracing.zipkintracer/releases/tag/1.3

I got that solution from Felix Wong.

But inside the server.xml will not reflect the version change, it will remaining the same feature name usr:opentracingZipkin-0.31.

<server description=”OpenLiberty Server”>
  <featureManager>
      <feature>microProfile-3.0</feature>
     <feature>webProfile-8.0</feature>
     <feature>usr:opentracingZipkin-0.31</feature>
</featureManager>
<httpEndpointid=”defaultHttpEndpoint”host=”*”httpPort=”8080″httpsPort=”9443″/>
….
</server>

I hope this was useful for you and let’s see what’s next?

Greetings,

Thomas

PS: You can try out Cloud Foundry Apps or Kubernetes on IBM Cloud. By the way, you can use the IBM Cloud for free, if you simply create an IBM Lite account. Here you only need an e-mail address.

#ibmdeveloper, #MicroProfile, #Java, #OpenTracing

A small source code update, when you use MicroProfile Health

I just want to highlight a small change for the MicroProfile Health, because I noticed with the update to MicroProfile 3.0 that the annotation @Health is deprecated.

mp-health-dep-2.1

It took me a little bit, because it was still listed in the MicroProfile documentation .

mp-health-dep-2.1-01.jpg

But I figured out in the blog post from Philip Riecks , when you replace the annotation @Health with @Readiness and import org.eclipse.microprofile.health.Readiness that it will work:

mp-health-dep-21.-02

I hope this was useful for you and let’s see what’s next?

Greetings,

Thomas

PS: You can try out Cloud Foundry Apps or Kubernetes on IBM Cloud. By the way, you can use the IBM Cloud for free, if you simply create an IBM Lite account. Here you only need an e-mail address.

#ibmdeveloper, #MicroProfile, #Java, #Health, #Readiness

Create one Java Microservice with OpenLiberty and MicroProfile – made for beginners

Today I created a YouTube video, where I developed one Microservice. The level of content of that video is for beginners. The video was “live” recorded and I made some minimal editing and the video takes 18 min.
The recoding is related to Java Microservices with MicroProfile and OpenLiberty in Visual Studio Code . The source code is available in the open sourced Cloud Native Starter GitHub project.

Check it out:

Maybe you are interested, how did I setup the IDE and the Project? … here are the basics.

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Being @codemotion 2019 in Berlin

I was as part of the great IBM Developer team at the codemotion in Berlin. We did so many contribution at codemotion that I would like to share the main topics and some personal impressions with you.

IMG_0662.jpg

The Conference and location

The codemotion is a two days multi track tech developer conference and had this year 1200 attendees.

It took place at an awesome location called Kulturbrauerei | Berlin . The sessions and codelabs (hands-on workshops), were in the cinema and in the theatre.

The content

I didn’t have the chance to visit many sessions, because we were very busy at our booth showing our open sourced based Blue-Cloud-Mirror fun game and talking about open technologies like Kubernetes, which can be used on IBM Cloud. The attendees liked this open source approach and the interactive game, so that they did their own instance of the game in just 10 min on their free IBM Cloud account.

… but surely I was at my own session 😉 … you will see here …

Here is the content of the two days from our IBM team, which contributed a keynote, sessions and codelabs. I just inserted the abstracts from the agenda provided on the codemotion page

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