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Adding noop-with-token to allow k8 authentication for MCP servers#1043

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tisnik merged 1 commit into
lightspeed-core:mainfrom
blublinsky:noop-with-token
Jan 23, 2026
Merged

Adding noop-with-token to allow k8 authentication for MCP servers#1043
tisnik merged 1 commit into
lightspeed-core:mainfrom
blublinsky:noop-with-token

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@blublinsky

@blublinsky blublinsky commented Jan 22, 2026 •
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Description

Type of change

  • Refactor
  • New feature
  • Bug fix
  • CVE fix
  • Optimization
  • Documentation Update
  • Configuration Update
  • Bump-up service version
  • Bump-up dependent library
  • Bump-up library or tool used for development (does not change the final image)
  • CI configuration change
  • Konflux configuration change
  • Unit tests improvement
  • Integration tests improvement
  • End to end tests improvement

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  • I have performed a self-review of my code.
  • PR has passed all pre-merge test jobs.
  • If it is a core feature, I have added thorough tests.

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Summary by CodeRabbit

  • Bug Fixes

    • Expanded MCP authorization header validation to support "noop-with-token" authentication module for Kubernetes-specific headers, in addition to "k8s" module.
    • Improved validation messages for clarity on accepted authentication module and header value pairings.

  • Documentation

    • Added clarification that "noop-with-token" is intended for testing and development; Kubernetes tokens must be provided in headers when using Kubernetes authorization headers.

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@coderabbitai

coderabbitai Bot commented Jan 22, 2026 •
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Walkthrough

This PR refactors MCP authentication-related code by extracting hard-coded string literals ("kubernetes" and "client") into constants, and updates validation logic to recognize the "noop-with-token" authentication module alongside "k8s" for Kubernetes headers.

Changes

Cohort / File(s) Summary
Constants Definition
src/constants.py		 Added two new public constants: MCP_AUTH_KUBERNETES = "kubernetes" and MCP_AUTH_CLIENT = "client"
MCP Auth Header Utilities
src/utils/mcp_auth_headers.py		 Replaced hard-coded string checks for "kubernetes" and "client" with constant references
Endpoint Logic
src/app/endpoints/mcp_auth.py, src/app/endpoints/query_v2.py		 Updated MCP header-value checks to use constants.MCP_AUTH_KUBERNETES and constants.MCP_AUTH_CLIENT instead of string literals
MCP Authorization Validation
src/models/config.py		 Expanded validation to accept "noop-with-token" as an allowed authentication module for Kubernetes-header authorization, alongside existing "k8s" support; updated error/warning messages and added explanatory note for development/testing context
Type Annotation
tests/e2e/mock_jwks_server/server.py		 Added Any type hint to *args parameter in log_message method signature

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Possibly related PRs

Suggested labels

enhancement, ok-to-test

Suggested reviewers

  • tisnik
🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The PR title accurately describes the main change: adding noop-with-token support to enable Kubernetes authentication for MCP servers, which is reflected in the code changes to constants, config validation, and auth headers.
Docstring Coverage ✅ Passed Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

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jrobertboos
jrobertboos reviewed Jan 22, 2026
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LGTM. I like replacing everything with constants :)

tisnik
tisnik approved these changes Jan 23, 2026
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LGTM

@tisnik tisnik merged commit a743270 into lightspeed-core:main Jan 23, 2026
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@coderabbitai coderabbitai Bot mentioned this pull request Jan 30, 2026
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@coderabbitai coderabbitai Bot mentioned this pull request Feb 12, 2026
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@tisnik tisnik tisnik approved these changes
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@jrobertboos jrobertboos jrobertboos left review comments
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3 participants

@blublinsky @tisnik @jrobertboos