feat: add Assume Role ARN field for cross-account ECR registries

[abhibhaw]

Added assumeRoleArn to the ECR registry form and API payload, allowing users to configure cross-account ECR access via STS AssumeRole. The field is available for both EC2 IAM Role and User auth modes.

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes https://github.com/devtron-labs/sprint-tasks/issues/2868

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

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• Test A
• Test B

Checklist:

• The title of the PR states what changed and the related issues number (used for the release note).
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas

[github-actions]

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[Copilot]

Pull request overview

Adds support for configuring cross-account AWS ECR access by introducing an optional Assume Role ARN field in the container registry (ECR) configuration UI and including it in the registry payload sent to the backend.

Changes:

• Extended RegistryPayloadType to include an optional assumeRoleArn.
• Plumbed assumeRoleArn through the Docker registry list → form props/state → API payload construction.
• Added an ECR-only form input for “Assume Role ARN (cross-account)” (shown for both EC2 IAM Role and User auth modes, and only for private ECR storage mode).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/config/constants.ts	Adds assumeRoleArn?: string to the registry payload type.
src/components/dockerRegistry/Docker.tsx	Adds form state + UI field for AssumeRole ARN and includes it in the ECR payload.

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[github-actions]

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud