Replace bitnami images with confluentinc for kafka and zookeeper (#8802)

[panagiotisbellias]

PR Description

Summary

Replaced legacy Bitnami Kafka/Zookeeper Docker images with Confluent’s actively maintained images. This resolves issue #8802

Background

• Bitnami images used in our test setup are no longer maintained.
• Continuing to use them poses risks for security, compatibility, and future updates.

Changes

• Updated config/docker-compose.yml to use:
  • confluentinc/cp-kafka
  • confluentinc/cp-zookeeper
• Verified compatibility with existing test scenarios.

Impact

• No functional changes in application logic.
• Test infrastructure now uses supported images.
• Safer long-term maintenance and upgrades.

Release Notes

Features / Bugs / Tasks

• Task: Replace bitnami images with confluentinc for kafka and zookeeper (#8802)

[coderabbitai[bot]]

📝 Walkthrough

Walkthrough

Updated service definitions in config/docker-compose.yml for Zookeeper and Kafka. Zookeeper image changed from bitnamilegacy/zookeeper:3 to confluentinc/cp-zookeeper:7.2.15; removed ALLOW_ANONYMOUS_LOGIN, added ZOOKEEPER_CLIENT_PORT: "2181", ZOOKEEPER_TICK_TIME: "2000", and a healthcheck (test, interval, timeout, retries). Kafka image changed from bitnamilegacy/kafka:3 to confluentinc/cp-kafka:7.2.15. No other files or public API declarations were modified.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• opfab/operatorfabric-core#8801 — Modifies docker-compose entries for Zookeeper and Kafka images (similar image substitutions).

Suggested reviewers

• ClementBouvierN

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📥 Commits

Reviewing files that changed from the base of the PR and between bca3bfe98d529a8324c815eb6951f9c25e11dddd and f941485c92e6984cc521df0f3c888366354df0b3.

📒 Files selected for processing (1)

• config/docker-compose.yml (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• config/docker-compose.yml

✨ Finishing Touches

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