Add image query resolver class to container-scanning

Description

Create an image query resolver class that can match and retrieve container images from remote registries based on user-provided image names and versions.

Requirements

• Accept image name and version specifiers from customers
• Query remote registries to find matching images
• Initially support GitLab Container Registry
  • Support both SaaS and self-managed instances
  • Implement minimal authentication configuration for HTTP requests
• Handle multiple image matches
• Cache HTTP responses to ensure that we keep the scans fast

Technical Considerations

• Design a flexible resolver interface that can be extended for other registry types
• Implement secure authentication handling
• Consider rate limiting and error handling for registry requests
• Support pattern matching for image names and versions

Acceptance Criteria

• Resolver class can accept image name and version parameters
• Successfully authenticates with GitLab Container Registry
• Returns matching images from the registry
• Handles both GitLab SaaS and self-managed instances
• Includes proper error handling and logging
• Documentation for implementation and usage

Out of Scope

• Support for other container registries besides GitLab
• Image pulling/downloading functionality
• Image validation or security scanning

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Description was generated using AI

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