feat(profile): add --operator-channel and --catalog-source flags

[jangel97]

Summary

• Add --operator-channel flag to override the OLM subscription channel per operator (e.g. --operator-channel serverless-operator=candidate)
• Add --catalog-source flag to use a custom index image per operator (e.g. --catalog-source nfd=quay.io/my-team/index:test), creating a CatalogSource CR automatically
• Validation runs before infrastructure provisioning to fail fast on invalid inputs
• Override logic is centralized in installOperator() — no profile files need changes
• Docs updated with usage examples and operator package name reference table

Test plan

• Build passes
• Validation catches empty keys/values before provisioning
• End-to-end test with --operator-channel override
• End-to-end test with --catalog-source override (NFD installed from custom index image hosted on ttl.sh, verified CatalogSource pod running and subscription pointing to custom catalog)

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Enterprise

Run ID: 96da0934-59e9-4308-9c70-f661baaa6c90

📥 Commits

Reviewing files that changed from the base of the PR and between 3c0fd15 and 49d12c6.

📒 Files selected for processing (6)

• cmd/mapt/cmd/aws/services/snc.go
• docs/aws/openshift-snc.md
• pkg/provider/aws/action/snc/snc.go
• pkg/target/service/snc/api.go
• pkg/target/service/snc/profile/operator.go
• pkg/target/service/snc/profile/profile.go

📝 Walkthrough

Walkthrough

This PR adds CLI support for per-operator OLM customization in OpenShift SNC deployments. Users can override individual operator subscription channels and provide custom CatalogSource index images, which are provisioned as Kubernetes custom resources before profile deployment begins.

Changes

Operator and CatalogSource Overrides

Layer / File(s)	Summary
API Contract Extension pkg/target/service/snc/api.go	SNCArgs struct gains Profiles, OperatorChannels, and CatalogSources fields to carry operator override configuration.
Profile Deployment - CatalogSource Infrastructure pkg/target/service/snc/profile/profile.go	Added crypto/sha256 and Kubernetes apiextensions imports, extended DeployArgs with operator channel and catalog source override maps, implemented ValidateOperatorOverrides validation helper, and implemented ensureCatalogSources to deterministically create CatalogSource custom resources keyed by index image hash before profile prerequisites are processed.
Operator-level Override Application pkg/target/service/snc/profile/operator.go	installOperator now applies per-operator channel overrides via args.OperatorChannels and catalog source overrides via args.catalogSourceCRs, and adds created CatalogSource CR resources to Pulumi operator install dependencies.
AWS Action Layer Orchestration and Validation pkg/provider/aws/action/snc/snc.go	Extended openshiftSNCRequest struct to hold profiles, operator channels, catalog sources, and disk size; validation of operator overrides via profile.ValidateOperatorOverrides; and wiring of those fields through to profile deployment in profile.DeployArgs.
CLI Flag Registration and Wiring cmd/mapt/cmd/aws/services/snc.go	Added --operator-channel and --catalog-source flag constants with descriptions, registered both as StringToStringP options, and wired flag values into SNCArgs construction.
User-facing Documentation docs/aws/openshift-snc.md	New "Operator overrides" section describing flag usage, single and multi-operator override examples, default behavior, and a table mapping profiles to installed OLM operators.

🎯 3 (Moderate) | ⏱️ ~25 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and accurately summarizes the main changes: adding two new CLI flags (--operator-channel and --catalog-source) for operator configuration.
Description check	✅ Passed	The description comprehensively covers the changes, including flag purposes, validation approach, implementation details, and test verification.
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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[coderabbitai]

Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@docs/aws/openshift-snc.md`:
- Around line 88-98: The fenced code blocks showing the commands (e.g., the
block with "mapt aws openshift-snc create" and the block with
"--operator-channel serverless-operator=preview,nfd=4.17") are missing language
specifiers; update each triple-backtick fence to include "bash" (```bash) so the
two blocks that contain the mapt aws openshift-snc create command and the
operator-channel example are annotated for proper syntax highlighting and to
satisfy MD040.
- Around line 104-117: Add the missing language specifier to both fenced code
blocks by marking them as bash to satisfy markdownlint MD040; update the two
code fences that show the "mapt aws openshift-snc create" examples (the
single-profile example using flags like --profile and --catalog-source, and the
combined example using --profile, --operator-channel and --catalog-source) to
start with ```bash so the commands are rendered with shell syntax highlighting.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Enterprise

Run ID: 74225bc6-e2fc-444a-8d43-dd1ae0909fb9

📥 Commits

Reviewing files that changed from the base of the PR and between ce74314 and 3c0fd15.

📒 Files selected for processing (6)

• cmd/mapt/cmd/aws/services/snc.go
• docs/aws/openshift-snc.md
• pkg/provider/aws/action/snc/snc.go
• pkg/target/service/snc/api.go
• pkg/target/service/snc/profile/operator.go
• pkg/target/service/snc/profile/profile.go