Infra: Add gradle p.1

[germanosin]

• Breaking change? (if so, please describe the impact and migration path for existing application instances)

What changes did you make? (Give an overview)

Is there anything you'd like reviewers to focus on?

How Has This Been Tested? (put an "x" (case-sensitive!) next to an item)

• No need to
• Manually (please, describe, if necessary)
• [] Unit checks
• Integration checks
• Covered by existing automation

Checklist (put an "x" (case-sensitive!) next to all the items, otherwise the build will fail)

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (e.g. ENVIRONMENT VARIABLES)
• My changes generate no new warnings (e.g. Sonar is happy)
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged

Check out Contributing and Code of Conduct

A picture of a cute animal (not mandatory but encouraged)

[github-actions]

Hi germanosin! 👋

Welcome, and thank you for opening your first PR in the repo!

Please wait for triaging by our maintainers.

Please take a look at our contributing guide.

[yeikel]

Please update the dependabot configuration as well 🙏

See

kafka-ui/.github/dependabot.yml

Line 4 in ed49499

- package-ecosystem: maven

[yeikel]

What's the status of this PR? I'd love an update given that it blocks #773

Can we merge #773 until this is completed? The conflict should be very minimal and easy to resolve anyways

[Haarolean]

What's the status of this PR? I'd love an update given that it blocks #773

Can we merge #773 until this is completed? The conflict should be very minimal and easy to resolve anyways

This will take some time. Let's discuss this in #773

[wernerdv]

After this change and https://github.com/kafbat/kafka-ui/pull/783/files/4a0e1329e6ec4132ef5dc00e0ecdf8135836688f#diff-f35103f068e191d5d8933637b2d4217d8f90a78728ccab1bada951a8d1c83590R459, if you build the project as before using Maven and the command mvn clean install -Pprod -DskipTests, then attempting to open the page in the browser will result in an error:

2025-03-09 06:35:37,493 ERROR [parallel-4] o.s.b.a.w.r.e.AbstractErrorWebExceptionHandler: [4a5b796b-1]  500 Server Error for HTTP GET "/"  
2025-03-09T06:35:37.499916272Z java.io.FileNotFoundException: class path resource [static/index.html] cannot be opened because it does not exist  
2025-03-09T06:35:37.499924293Z 	at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:215) 

@Haarolean Could you please let me know if there are plans to support Maven builds during some transition period, or will the files related to Maven be removed in the near future?

[Haarolean]

@wernerdv gradle migration is complete though, you can achieve the same this way:

./gradlew clean build -x test -Pinclude-frontend=true -Pbuild-docker-images=true

The rest of maven-related files are to be removed. Let me know if you experience any issues with building via gradle.