chore(deps): update confluentinc/cp-kafka docker tag to v8

[Fameing]

This PR contains the following updates:

Package	Update	Change
confluentinc/cp-kafka	major	7.9.2 -> 8.0.0

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This PR has been generated by Renovate Bot.

Summary by CodeRabbit

• Chores
  • Updated the default Kafka Docker image to confluentinc/cp-kafka:8.2.0. This changes the runtime container image used by default; there are no changes to public APIs, validation, or application behavior beyond the image version bump.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Configuration used: defaults

Review profile: CHILL

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Run ID: b1245aa9-d568-4d4f-8e65-1d24f4cd20c6

📥 Commits

Reviewing files that changed from the base of the PR and between 0418fd5 and b0eeece.

📒 Files selected for processing (1)

• embedded-kafka/src/main/java/com/playtika/testcontainer/kafka/properties/KafkaConfigurationProperties.java

✅ Files skipped from review due to trivial changes (1)

• embedded-kafka/src/main/java/com/playtika/testcontainer/kafka/properties/KafkaConfigurationProperties.java

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📝 Walkthrough

Walkthrough

Updated the default Confluent Kafka Docker image tag in KafkaConfigurationProperties#getDefaultDockerImage() from confluentinc/cp-kafka:7.9.5 to confluentinc/cp-kafka:8.2.0. No other logic, control flow, validation, or public API signatures changed.

Changes

Cohort / File(s)	Summary
Kafka Docker Image Version Update embedded-kafka/src/main/java/com/playtika/testcontainer/kafka/properties/KafkaConfigurationProperties.java	Default Confluent Kafka Docker image tag changed from confluentinc/cp-kafka:7.9.5 to confluentinc/cp-kafka:8.2.0 in getDefaultDockerImage().

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Suggested reviewers

• Periecle
• ijusti

Poem

🐰 I hopped into code and found a new view,
A Docker tag shimmered — hello 8.2!
Containers hum and topics bloom,
A tiny rabbit dances in the dev room. 🎉

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: updating the Kafka Docker image tag from version 7.9.5 to 8.2.0, which is a major version upgrade.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
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🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch renovate/confluentinc-cp-kafka-8.x

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[coderabbitai]

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)

embedded-kafka/src/main/java/com/playtika/testcontainer/kafka/properties/KafkaConfigurationProperties.java (1)

70-77: ⚠️ Potential issue | 🔴 Critical

This image upgrade requires migration to KRaft mode—ZooKeaker is no longer supported in cp-kafka 8.2.0.

The upgrade from cp-kafka 7.9.5 to 8.2.0 crosses a critical breaking change: Confluent Platform 8.0 removed ZooKeeper entirely and made KRaft mode mandatory. The current configuration in KafkaContainerConfiguration still uses withEmbeddedZookeeper() and ZooKeeper-oriented env variables (e.g., KAFKA_ZOOKEEPER_CONNECT), which are no longer recognized or applicable in 8.x. The container will fail to start or behave unexpectedly with this image.

To proceed safely, either:

1. Revert to the fallback below and remain on cp-kafka 7.9.5:

Safe fallback

-        return "confluentinc/cp-kafka:8.2.0";
+        return "confluentinc/cp-kafka:7.9.5";

2. Migrate KafkaContainerConfiguration to KRaft mode (requires updating broker environment variables and removing ZooKeeper configuration).

See Confluent's ZooKeeper to KRaft migration guide and 8.x Docker config reference for details.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In
`@embedded-kafka/src/main/java/com/playtika/testcontainer/kafka/properties/KafkaConfigurationProperties.java`
around lines 70 - 77, The Docker image was bumped to confluentinc/cp-kafka:8.2.0
but that image requires KRaft mode; either revert getDefaultDockerImage() in
KafkaConfigurationProperties.getDefaultDockerImage() to the 7.9.5 tag or migrate
KafkaContainerConfiguration to KRaft: remove calls to withEmbeddedZookeeper()
and any use of KAFKA_ZOOKEEPER_CONNECT, drop ZooKeeper-specific env vars, and
add KRaft-required broker envs (e.g., KAFKA_PROCESS_ROLES, KAFKA_NODE_ID,
KAFKA_CONTROLLER_QUORUM_VOTERS, KAFKA_LISTENERS,
KAFKA_CONTROLLER_LISTENER_NAMES) and any controller listener wiring so the
container starts in KRaft mode compatible with the 8.x image.

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Outside diff comments:
In
`@embedded-kafka/src/main/java/com/playtika/testcontainer/kafka/properties/KafkaConfigurationProperties.java`:
- Around line 70-77: The Docker image was bumped to confluentinc/cp-kafka:8.2.0
but that image requires KRaft mode; either revert getDefaultDockerImage() in
KafkaConfigurationProperties.getDefaultDockerImage() to the 7.9.5 tag or migrate
KafkaContainerConfiguration to KRaft: remove calls to withEmbeddedZookeeper()
and any use of KAFKA_ZOOKEEPER_CONNECT, drop ZooKeeper-specific env vars, and
add KRaft-required broker envs (e.g., KAFKA_PROCESS_ROLES, KAFKA_NODE_ID,
KAFKA_CONTROLLER_QUORUM_VOTERS, KAFKA_LISTENERS,
KAFKA_CONTROLLER_LISTENER_NAMES) and any controller listener wiring so the
container starts in KRaft mode compatible with the 8.x image.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 8c669a23-c307-4a0d-aeec-6d4a0e1ea629

📥 Commits

Reviewing files that changed from the base of the PR and between 4424e01 and 5a53079.

📒 Files selected for processing (1)

• embedded-kafka/src/main/java/com/playtika/testcontainer/kafka/properties/KafkaConfigurationProperties.java