Help Request

[cwatsonc]

Just discovered this code which appears to mirror the coursework for Ali Gelenler's course on Spring Boot microservices -- are there instructions that allow me to follow the coursework? I've tried compiling the project (first at project root, then at the Section 3 service description in twitter-to-kafka-service project root -- both failed at some peer dependency FFI not being available. Any help is appreciated -- let me know if I can help somehow. -CW cwatsonc

MacOS Monterey 12.5
Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)
Maven home: /usr/local/Cellar/maven/3.6.3_1/libexec
Java version: 17.0.4, vendor: Eclipse Adoptium, runtime: /Library/Java/JavaVirtualMachines/temurin-17.jdk/Contents/Home
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "12.5", arch: "aarch64", family: "mac"
mvn_out.txt

[artshishkin]

As I see in your log file the error happens during work of docker-maven-plugin (docker:build goal).

could not get native definition for type `POINTER`, original error message follows: java.lang.UnsatisfiedLinkError: Unable to execute or load jffi binary stub from `/var/folders/kr/sl9d0kfd6xz8925bzxc99ygw0000gn/T/`. Set `TMPDIR` or Java property `java.io.tmpdir` to a read/write path that is not mounted "noexec".

Unfortunatly I can not test any solutions (because I have no Mac).
As a workaround you can follow the steps from this article Maven + Mac M1 (aarch64) + Fabric8 docker-maven-plugin
This issue of plugin could be fixed in the newer versions. First of all let's update plugin docker-maven-plugin

[artshishkin]

After updating plugin version:

• First of all run build without testing from the root of the project:
• mvn clean install -DskipTests
• This will build all the modules, install artifacts into local maven repository, and finally build docker images
• After that you can verify that everything works fine by unit and integration tests:
• mvn verify

[artshishkin]

are there instructions that allow me to follow the coursework?
I have no such instructions. But I followed the course and commited every step. For every Section I made an Issue to myself.
So my commits are grouped by Issues. And you can follow my commits and my closed issues.

• Section 3: First service: twitter-to-kafka-service
• Section 4: Externalizing configuration with Spring Cloud Config Server
• Section 5: kafka-to-elastic-service: How to use Kafka consumers and Elastic Index API
• and so on
  Actually my repository is not an exact mirror of Ali Gelenler's course. I made some modifications. This is how I prefer to build project.

[cwatsonc]

After updating plugin version:

• First of all run build without testing from the root of the project:
• mvn clean install -DskipTests
• This will build all the modules, install artifacts into local maven repository, and finally build docker images
• After that you can verify that everything works fine by unit and integration tests:
• mvn verify

updating docker-maven-plugin to 0.39.1 seemed to do the trick -- the docker images seemed to be generated 'correctly' but the verification fails on jacoco validation steps due to mismatch in the supported idk -- I'm researching the error and it's well known -- I'll have to figure out the configuration as they recommended constraining the coverage to the application classes and excluding the java.* package spaces. jacoco issue 997

now the verification fails in a number of (perhaps) configuration issues. I'll need to loop back to the course content and begin absorbing the proper configurations.

@artshishkin Suggest a short DIFFERENCES.md describing how this project varied from the original course -- grateful to have some working builds to start from. I recently completed an online course that used branches to describe content progress 01_04b (chapter 1 section 4, beginning state) 01_04e (end state). I might start a fork and propose pulls in this format -- don't want to bother you if you feel this isn't worthwhile.

Thanks for your assistance cwatsonc