[ORC- 8867]feat: add confluent-jdbc connection

[rveerannagowda (rveerannagowda)]

Release Notes

New Features

• Add new flink connection type confluent-jdbc.

Checklist

• I have successfully built and used a custom CLI binary, without linter issues from this PR.
• I have clearly specified in the What section below whether this PR applies to Confluent Cloud, Confluent Platform, or both.
• I have verified this PR in Confluent Cloud pre-prod or production environment, if applicable.
• I have verified this PR in Confluent Platform on-premises environment, if applicable.
• I have attached manual CLI verification results or screenshots in the Test & Review section below.
• I have added appropriate CLI integration or unit tests for any new or updated commands and functionality.
• I confirm that this PR introduces no breaking changes or backward compatibility issues.
• I have indicated the potential customer impact if something goes wrong in the Blast Radius section below.
• I have put checkmarks below confirming that the feature associated with this PR is enabled in:
  • Confluent Cloud prod
  • Confluent Cloud stag
  • Confluent Cloud devel
  • Confluent Platform
  • Check this box if the feature is enabled for certain organizations only

What

Add confluent-jdbc as a new flink connection type for Confluent Cloud.

Blast Radius

Confluent Platform customers using confluent flink connection subcommand would be affected

References

JIRA ticket: https://confluentinc.atlassian.net/browse/ORC-8867

Test & Review

Creating connection of type confluent-jdbc

dist/confluent_darwin_arm64/confluent flink connection create mysql-customer-db1 \
  --cloud gcp \
  --region us-central1 \
  --type confluent_jdbc \
  --endpoint 'jdbc:mysql://customer-db.example.com:3306/customerdb' \
  --username 'readonly_user' \
  --password 'secret123'

+---------------+------------------------------------------------------+
| Creation Date | 2025-05-09 01:51:16.510925                           |
|               | +0000 UTC                                            |
| Name          | mysql-customer-db1                                   |
| Environment   | env-030qn9                                           |
| Cloud         | gcp                                                  |
| Region        | us-central1                                          |
| Type          | CONFLUENT_JDBC                                       |
| Endpoint      | jdbc:mysql://customer-db.example.com:3306/customerdb |
| Data          | <REDACTED>                                           |
| Status        |                                                      |
+---------------+------------------------------------------------------+

Listing Connections of type confluent-jdbc

dist/confluent_darwin_arm64/confluent flink connection list --cloud GCP --region us-central1 --type confluent-jdbc 
          Creation Date          |        Name        | Environment | Cloud |   Region    |      Type      |                       Endpoint                       |    Data    | Status | Status Detail  
---------------------------------+--------------------+-------------+-------+-------------+----------------+------------------------------------------------------+------------+--------+----------------
  2025-05-12 18:42:40.967551     | mysql-customer-db1 | env-rgdkk   | GCP   | us-central1 | CONFLUENT-JDBC | jdbc:mysql://customer-db.example.com:3306/customerdb | <REDACTED> |        |                
  +0000 UTC                      |                    |             |       |             |                |                                                      |            |        |            

Updating Connection :

dist/confluent_darwin_arm64/confluent flink connection update mysql-customer-db1 --cloud GCP --region us-central1 --username 'readonly_user' --password 'secret123'

+---------------+------------------------------------------------------+
| Creation Date | 2025-05-12 18:42:40.967551                           |
|               | +0000 UTC                                            |
| Name          | mysql-customer-db1                                   |
| Environment   | env-rgdkk                                            |
| Cloud         | GCP                                                  |
| Region        | us-central1                                          |
| Type          | CONFLUENT-JDBC                                       |
| Endpoint      | jdbc:mysql://customer-db.example.com:3306/customerdb |
| Data          | <REDACTED>                                           |
| Status        |                                                      |
+---------------+------------------------------------------------------+

Deleting Connection

 dist/confluent_darwin_arm64/confluent flink connection delete mysql-customer-db1 --cloud GCP --region us-central1                                           
Are you sure you want to delete Flink connection "mysql-customer-db1"? (y/n): y
Deleted Flink connection "mysql-customer-db1".

[confluent-cla-assistant]

🎉 All Contributor License Agreements have been signed. Ready to merge.
_{Please push an empty commit if you would like to re-run the checks to verify CLA status for all contributors.}

[Copilot]

Pull Request Overview

This PR introduces "confluent-jdbc" as a new Flink connection type for Confluent Cloud. Key changes include:

• Adding test cases in test/flink_test.go for the new connection type.
• Updating golden files for connection help, list, and error messages to include "confluent-jdbc".
• Modifying connection type mappings in pkg/flink/utils.go and vocabulary in cmd/lint/main.go.

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
test/flink_test.go	Added test case for creating a confluent-jdbc connection.
test/fixtures/output/flink/connection/update-help.golden	Updated help text to include confluent-jdbc username/password.
test/fixtures/output/flink/connection/list/*.golden	Updated list and error messages to include confluent-jdbc.
test/fixtures/output/flink/connection/create/*.golden	Added golden output for confluent-jdbc connection creation.
pkg/flink/utils.go	Extended connection type arrays and mappings for confluent-jdbc.
cmd/lint/main.go	Included confluent-jdbc into the allowed vocabulary.

[rveerannagowda (rveerannagowda)]

PASS
failed to remove temporary directory: remove C:\Users\SEMAPH~1\AppData\Local\Temp\ccloud-schema\google\protobuf\descriptor.proto: The process cannot access the file because it is being used by another process.
FAIL	github.com/confluentinc/cli/v4/pkg/serdes	2.774s

Flaky test unrelated to code failing :https://confluent.slack.com/archives/CG6BW233L/p1738097461887909

[Hao Li (lihaosky)]

Why do we need auth? Is username, password not enough?

[rveerannagowda (rveerannagowda)]

confluent flink connection create mysql_customer_db 
--cloud aws --region us-east-2 --environment env-o2zynj
--type confluent-jdbc
--endpoint 'jdbc:mysql://customer-db.example.com:3306/customerdb'
--auth basic 
--username 'readonly_user'
--password 'secret123'

I was trying to follow whats the command line is there in the product doc .Have added auth as optional and username and password as required

[Xiang Li (xli1996)]

I do not think we need auth now as we have not decided on private network approach yet, maybe we can add them later.

[rveerannagowda (rveerannagowda)]

Thanks for the clarification ! Removed it

[sonarqube-confluent]

Analysis Details

1 Issue

• 0 Bugs
• 0 Vulnerabilities
• 1 Code Smell

Coverage and Duplications

• No coverage information (76.90% Estimated after merge)
• No duplication information (0.00% Estimated after merge)

Project ID: cli

View in SonarQube

[tmalik (tmalikconfluent)]

The overall PR looks great! We should add more results to testing section though, such as creating a connection maybe? Also, the release notes are customer facing and should be precise.Please refer to release notes of other CLI PRs for reference.