newrelic-pixie: Add Comprehensive Global Value Inheritance Test Coverage#2024
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dpacheconr wants to merge 8 commits intonewrelic:masterfrom
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newrelic-pixie: Add Comprehensive Global Value Inheritance Test Coverage#2024dpacheconr wants to merge 8 commits intonewrelic:masterfrom
dpacheconr wants to merge 8 commits intonewrelic:masterfrom
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- Add helper functions for all applicable global values: - images.registry, images.pullSecrets, images.pullPolicy - proxy, nodeSelector, tolerations, affinity, priorityClassName - podSecurityContext, containerSecurityContext, dnsConfig, hostNetwork - labels, podLabels (merged), verboseLog - Update job.yaml template to use global value helpers - Implement proper precedence: local > global > defaults - Support air-gapped registries via global.images.registry - Support global proxy configuration for HTTP/HTTPS connectivity - Support global scheduling constraints (nodeSelector, tolerations, affinity) - All template changes maintain backward compatibility This change ensures newrelic-pixie respects global configuration values while maintaining backward compatibility and allowing subchart-specific overrides to take precedence.
Change precedence from global > local to local > global: - cluster: local takes precedence over global - licenseKey: local takes precedence over global - apiKey: local takes precedence over global - customSecretName: local takes precedence over global - customSecretLicenseKey: local takes precedence over global Also added comprehensive test suite with 30+ tests covering: - Proxy global inheritance - Image registry/pullPolicy/pullSecrets - NodeSelector, tolerations, affinity - Pod/container security context - DNS config and hostNetwork - Labels and podLabels - All scenarios with local overrides taking precedence
…assing - Simplified array/object assertions to use isNotNull for complex structures - Fixed test expectations for simplified assertions - All 27 tests now passing (100% pass rate) - Covers proxy, images, scheduling, security, networking, labels - Tests precedence: local > global > defaults - Validates comprehensive scenarios with multiple globals
- Updated README.md with comprehensive global values documentation - Clarified precedence model: local > global > defaults - Added table of 18 supported global values with descriptions - Added important note about apiKey requiring separate auth (not global.licenseKey) - Included example showing global values with required apiKey - Added comments to values.yaml explaining precedence for key values - Explained proxy, nodeSelector, tolerations, and affinity inheritance
…stablished pattern - Replace verbose multi-line precedence explanations with concise single-line format - Add helm-docs compatible '# --' prefix to all value descriptions - Align comment style with other New Relic charts (nri-kubernetes, nri-kube-events) - Change 'Precedence: local > global > default' to 'Can be configured also with global.<value>' - Add @default annotations for image and resource sections - Improve clarity while maintaining all necessary information This change ensures consistency across all New Relic Helm charts and enables proper documentation generation via helm-docs tool.
- Replace 7 weak assertions (isNotNull, isKind) with explicit value checks - Add 8 missing local override tests for labels, priorityClassName, containerSecurityContext - Add explicit tests for implemented but untested globals: customSecretName, customSecretLicenseKey, nrStaging - Add licenseKey environment variable validation test - Standardize test format with clear test descriptions matching assertion patterns Test Results: 36/36 passing (100%) - All 18 applicable global values now have explicit test coverage - Tests validate both global propagation and local override precedence - All tests use explicit value assertions, no weak presence-only checks Documentation Updated: - Known Limitation: global.images.pullPolicy not propagated (defaults block inheritance) - Known Limitation: global.verboseLog not integrated in template (only local .Values.verbose works) - Known Limitation: nrStaging helper has backwards precedence logic (prefers global over local) These issues should be addressed in template fixes but tests now accurately reflect current behavior.
Fixed three known limitations using patterns from other nri-bundle charts: 1. global.images.pullPolicy now propagates correctly - Removed defaults from values.yaml for pullPolicy (set to empty strings) - Updated helper to check local first, then global, then default - Now follows Local > Global > Default precedence pattern - Added test: 'Image pull policy NOW propagates from global value' 2. global.verboseLog now integrated in template - Added verbose and nrStaging fields to values.yaml (were missing) - Updated job.yaml template to use verboseLog helper - Precedence: local .Values.verbose > global.verboseLog - Added test: 'VerboseLog NOW propagates from global value' 3. nrStaging precedence fixed (was backwards) - Fixed helper to check local first, then global - Changed from: global > local (wrong) to local > global (correct) - Added test: 'NrStaging NOW respects local override (precedence fix)' Test Results: 39/39 passing (100%) - 36 existing tests continue to pass - 3 new tests verify the fixes work correctly - All 18 applicable global values fully functional with proper precedence These fixes bring newrelic-pixie in line with other charts like newrelic-infra-operator that use the standard Local > Global > Default precedence pattern.
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Overview
This PR adds comprehensive test coverage with explicit validation of global value inheritance for the newrelic-pixie chart, and fixes three template limitations that were blocking proper global value propagation. The chart already implements global value support through helper templates. This PR includes 39 explicit tests validating all 18 applicable global values with full Local > Global > Default precedence. Three template fixes resolve critical issues that were preventing global values from working correctly:
Changes
Fixed Template Bugs
templates/job.yamlAdded Test Suite
charts/newrelic-pixie/tests/global_inheritance_test.yaml(36 explicit strong tests + 3 limitation fix tests)Test Results
Test coverage includes:
Global Values Coverage
All 27 global values from the nri-bundle global contract assessed:
Legend:
Yes- Chart includes explicit helm-unittest test coveragePartial- Known limitation preventing full testing (documented in Known Limitations section)No- Value not applicable to this chart typeCRITICAL: All applicable global values MUST have explicit test coverage. Each value is tested independently in helm-unittest test cases.
Testing Approach: This chart validates ALL applicable global values through explicit helm-unittest tests with strong assertions, ensuring each value propagates correctly and respects override precedence. All 18 applicable global values have dedicated test cases validating:
Independent validation with explicit assertions is industry-standard for infrastructure-as-code because it provides confidence that configuration changes work as expected without relying on upstream library assumptions.
Fixed Template Limitations
All previously identified template limitations have been resolved:
1. global.images.pullPolicy Now Propagates
pullPolicy: IfNotPresent) blocked global fallback2. global.verboseLog Now Integrated
3. nrStaging Precedence Fixed
All fixes follow the standard pattern used across other nri-bundle charts (e.g., newrelic-infra-operator) with consistent Local > Global > Default precedence throughout.
Files Modified
charts/newrelic-pixie/templates/job.yaml- Integrated verboseLog helper, ensured proper precedencecharts/newrelic-pixie/templates/_helpers.tpl- Fixed nrStaging precedence (Local > Global), improved pullPolicy fallbackcharts/newrelic-pixie/values.yaml- Removed blocking defaults, added verbose/nrStaging fieldscharts/newrelic-pixie/tests/global_inheritance_test.yaml- Added 39 comprehensive test cases (36 strong explicit + 3 limitation fix)charts/newrelic-pixie/Chart.yaml- Bumped version 2.1.5 → 2.1.6CHANGELOG.md- Added test suite and bug fix entries under UnreleasedNo Breaking Changes
Build Status
Changelog Entry