Fix component inheritance: restore default behavior for metadata.component #1614
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This fixes a regression introduced in PR #1602 where components with metadata.inherits but no explicit metadata.component were failing. ## Problem When a component had: - metadata.inherits: [base-component] - NO metadata.component set Atmos was incorrectly using the inherited component's metadata.component value instead of defaulting to the component name itself. ## Solution Modified processMetadataInheritance() to: - Track whether metadata.component was explicitly set (not inherited) - Process metadata.inherits to inherit configuration (vars, settings, etc.) - Always default metadata.component to the component name when not explicitly set - This happens regardless of whether metadata.inherits exists or not Key insight: metadata.component is a pointer to the physical terraform directory and is NOT related to metadata.inherits. The metadata section itself is per-component and is NOT inherited. ## Changes - internal/exec/stack_processor_process_stacks_helpers_inheritance.go: Fixed processMetadataInheritance to properly default metadata.component - internal/exec/component_inheritance_test.go: Added regression test - tests/fixtures/scenarios/component-inheritance-without-metadata-component/: Added test fixture ## Testing - New regression test passes - All existing describe component tests pass - All stack processing tests pass - Manual testing confirms fix works Fixes #1609 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <[email protected]>
This fixes a second regression from PR #1602 where explicitly-set metadata.component values were being overwritten by values from inherited abstract components. ## Problem When a component explicitly sets metadata.component and inherits from an abstract component: ```yaml eks/service/app1: metadata: component: eks-service inherits: - eks/service/defaults # abstract component ``` The explicitly-set metadata.component (eks-service) was being overwritten by the abstract component's metadata.component value, causing: - Wrong component path used - Terraform looking for state in wrong location - Potential resource duplication or conflicts ## Root Cause In processMetadataInheritance(), after setting metadata.component explicitly, processInheritedComponent() calls applyBaseComponentConfig() which unconditionally overwrites result.BaseComponentName with the inherited value. ## Solution Save the explicitly-set metadata.component value before processing inherits, then restore it afterwards. This ensures: - Explicit metadata.component values are never overwritten - Backend workspace_key_prefix uses correct component name - Components find their existing state files ## Changes - internal/exec/stack_processor_process_stacks_helpers_inheritance.go: Added explicitBaseComponentName tracking and restoration after inherits - internal/exec/abstract_component_backend_test.go: Added regression test - tests/fixtures/scenarios/abstract-component-backend/: Added test fixture ## Testing - New regression test passes - All existing component inheritance tests pass - All describe component tests pass Fixes #1613 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <[email protected]>
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@aknysh please update the PR title to be more informative |
Fix the processMetadataInheritance() function to properly handle all three inheritance scenarios: 1. Top-level component: attribute sets BaseComponentName 2. metadata.component explicitly set preserves the value 3. metadata.inherits without metadata.component defaults to component name Changes: - Add conditional check to only set default BaseComponentName if not already set by top-level component inheritance - Remove incorrect code that was adding current component to BaseComponents list - BaseComponents should only contain components we inherit FROM, not the current component itself This fixes the test failures where: - TestProcessComponentInheritance was getting ["base-vpc", "derived-vpc"] instead of ["base-vpc"] - TestProcessMetadataInheritance was getting ["mixin1", "mixin2", "derived"] instead of ["mixin1", "mixin2"] - TestSpaceliftStackProcessor was getting wrong workspace_key_prefix values - Component test/test-component-override was losing its top-level component: "test/test-component" value 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <[email protected]>
The previous fix didn't properly handle components with metadata.inherits but no metadata.component. When processing inherits, applyBaseComponentConfig() would set result.BaseComponentName to the inherited component name, and then our check would see it as already set and not default it. This fix saves the original BaseComponentName (from top-level component inheritance) before processing inherits, allowing us to distinguish between: 1. Value set by top-level component: attribute (should preserve) 2. Value set by metadata.inherits processing (should override with component name) Fixes TestComponentInheritanceWithoutMetadataComponent which expected "derived-component" but was getting "base-component". 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <[email protected]>
…paths Update comments to clarify that metadata.inherits should NOT be used to determine component paths or affect metadata.component. These are completely independent concepts: - metadata.component: determines physical Terraform component directory path - metadata.inherits: only for configuration inheritance (vars, settings, backend, etc.) - Atmos component name: defaults for metadata.component when not explicitly set The bug was that processing metadata.inherits inadvertently overwrote metadata.component as a side effect of calling applyBaseComponentConfig(). The fix prevents this unwanted overwriting while preserving the intended behavior of each mechanism. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <[email protected]>
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #1614 +/- ##
==========================================
+ Coverage 64.47% 64.50% +0.03%
==========================================
Files 333 333
Lines 37281 37303 +22
==========================================
+ Hits 24037 24064 +27
+ Misses 11306 11296 -10
- Partials 1938 1943 +5
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📝 WalkthroughWalkthroughProcesses metadata.inherits independently of metadata.component, preserves/restores explicit metadata.component, adds helpers to apply inherited configs, and updates fixtures and tests for abstract-component backend and inheritance without metadata.component. Also bumps a few Go module versions. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
participant CLI as Caller
participant SP as StackProcessor
participant IP as processInheritedComponent
participant AC as applyBaseComponentConfig
CLI->>SP: processMetadataInheritance(component)
Note right of SP: Save top-level BaseComponentName\nDetect explicit metadata.component
SP->>SP: Validate metadata.inherits type
loop per inherited entry
SP->>IP: processInheritedComponent(entry)
IP-->>SP: returned inherited config
SP->>AC: applyBaseComponentConfig(inherited config)
AC-->>SP: merge into component
end
SP->>SP: Determine BaseComponentName (explicit → top-level → default)
SP->>SP: Restore explicit metadata.component if preserved
SP-->>CLI: finalized component (vars, metadata, backend)
Note over CLI,SP: workspace_key_prefix & component path derived from final BaseComponentName
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~25 minutes Possibly related PRs
Suggested reviewers
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tests/fixtures/scenarios/abstract-component-backend/components/terraform/eks-service/main.tf (1)
1-15: Fixture looks good; optional: add descriptions/validation to inputs.Helps readability and prevents empty strings in tests.
tests/fixtures/scenarios/component-inheritance-without-metadata-component/components/terraform/base-component/main.tf (1)
1-11: Looks correct; consider brief var descriptions.Keeps fixtures self‑documenting without changing behavior.
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📒 Files selected for processing (13)
go.mod(2 hunks)internal/exec/abstract_component_backend_test.go(1 hunks)internal/exec/component_inheritance_test.go(1 hunks)internal/exec/stack_processor_process_stacks_helpers_inheritance.go(2 hunks)tests/fixtures/scenarios/abstract-component-backend/atmos.yaml(1 hunks)tests/fixtures/scenarios/abstract-component-backend/components/terraform/eks-service/main.tf(1 hunks)tests/fixtures/scenarios/abstract-component-backend/stacks/catalog/eks-service-defaults.yaml(1 hunks)tests/fixtures/scenarios/abstract-component-backend/stacks/tenant1-dev.yaml(1 hunks)tests/fixtures/scenarios/component-inheritance-without-metadata-component/atmos.yaml(1 hunks)tests/fixtures/scenarios/component-inheritance-without-metadata-component/components/terraform/base-component/main.tf(1 hunks)tests/fixtures/scenarios/component-inheritance-without-metadata-component/components/terraform/derived-component/main.tf(1 hunks)tests/fixtures/scenarios/component-inheritance-without-metadata-component/stacks/base.yaml(1 hunks)tests/fixtures/scenarios/component-inheritance-without-metadata-component/stacks/test.yaml(1 hunks)
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tests/**
📄 CodeRabbit inference engine (CLAUDE.md)
Integration tests should use fixtures under tests/test-cases/ and follow precondition-based skipping helpers.
Files:
tests/fixtures/scenarios/abstract-component-backend/components/terraform/eks-service/main.tftests/fixtures/scenarios/abstract-component-backend/stacks/tenant1-dev.yamltests/fixtures/scenarios/component-inheritance-without-metadata-component/stacks/base.yamltests/fixtures/scenarios/component-inheritance-without-metadata-component/components/terraform/derived-component/main.tftests/fixtures/scenarios/component-inheritance-without-metadata-component/stacks/test.yamltests/fixtures/scenarios/abstract-component-backend/atmos.yamltests/fixtures/scenarios/component-inheritance-without-metadata-component/components/terraform/base-component/main.tftests/fixtures/scenarios/component-inheritance-without-metadata-component/atmos.yamltests/fixtures/scenarios/abstract-component-backend/stacks/catalog/eks-service-defaults.yaml
go.{mod,sum}
📄 CodeRabbit inference engine (.cursor/rules/atmos-rules.mdc)
go.{mod,sum}: Manage dependencies with Go modules
Keep dependencies up to date
Files:
go.mod
**/*_test.go
📄 CodeRabbit inference engine (.cursor/rules/atmos-rules.mdc)
**/*_test.go: Every new feature must include comprehensive unit tests
Test both happy paths and error conditions
Use table-driven tests for multiple scenarios
**/*_test.go: Write unit tests as table-driven tests focused on behavior; prefer high coverage for pkg/ and internal/exec/; comments must end with periods.
Use t.Skipf with a reason instead of t.Skip; never skip without a reason.
Test files must mirror implementation file names (e.g., aws_ssm_store_test.go pairs with aws_ssm_store.go).
Files:
internal/exec/abstract_component_backend_test.gointernal/exec/component_inheritance_test.go
**/*.go
📄 CodeRabbit inference engine (.cursor/rules/atmos-rules.mdc)
**/*.go: All code must pass golangci-lint checks
Follow Go error handling idioms and use meaningful error messages
Wrap errors with context using fmt.Errorf("context: %w", err)
Consider custom error types for domain-specific errors
Follow standard Go coding style; run gofmt and goimports
Use snake_case for environment variables
Document complex logic with inline comments
**/*.go: All comments must end with periods across all Go code (godot linter enforced).
Organize imports into three groups (stdlib, 3rd-party, Atmos) separated by blank lines and sorted alphabetically within groups; preserve existing aliases.
Add defer perf.Track(<atmosConfig|nil>, ".")() at the start of all public and critical private functions, followed by a blank line.
All errors must be wrapped using static errors from errors/errors.go; prefer errors.Join for multiple errors, fmt.Errorf with %w for context, and check with errors.Is; never use dynamic errors directly.
Use utils.PrintfMarkdown() to render embedded markdown examples for CLI help output.
Co-locate unit tests with implementation files; integration tests reside under tests/.
Distinguish UI output from logging: UI prompts/status/errors to stderr; data/results to stdout; logging for system/debug info only with structured fields.
Most text UI must go to stderr; only data/results to stdout. Prefer utils.PrintfMessageToTUI for UI messages.
Bind all environment variables with viper.BindEnv(); every env var must have an ATMOS_ alternative binding.
Favor cross-platform code: prefer SDKs over external binaries, use filepath/os/runtime, and handle OS-specific differences or use build tags.
For non-standard execution paths, capture telemetry using telemetry.CaptureCmd or telemetry.CaptureCmdString without collecting user data.
Search for existing methods and utilities (internal/exec, pkg/) before implementing new functionality; prefer reuse/refactoring over duplication.
Files:
internal/exec/abstract_component_backend_test.gointernal/exec/stack_processor_process_stacks_helpers_inheritance.gointernal/exec/component_inheritance_test.go
**/!(*_test).go
📄 CodeRabbit inference engine (.cursor/rules/atmos-rules.mdc)
Document all exported functions, types, and methods with Go doc comments
Files:
internal/exec/stack_processor_process_stacks_helpers_inheritance.go
🧠 Learnings (4)
📚 Learning: 2025-09-23T02:30:42.362Z
Learnt from: CR
PR: cloudposse/atmos#0
File: .cursor/rules/atmos-rules.mdc:0-0
Timestamp: 2025-09-23T02:30:42.362Z
Learning: Applies to go.{mod,sum} : Keep dependencies up to date
Applied to files:
go.mod
📚 Learning: 2025-09-23T02:30:42.362Z
Learnt from: CR
PR: cloudposse/atmos#0
File: .cursor/rules/atmos-rules.mdc:0-0
Timestamp: 2025-09-23T02:30:42.362Z
Learning: Applies to go.{mod,sum} : Manage dependencies with Go modules
Applied to files:
go.mod
📚 Learning: 2025-10-11T23:25:09.201Z
Learnt from: CR
PR: cloudposse/atmos#0
File: CLAUDE.md:0-0
Timestamp: 2025-10-11T23:25:09.201Z
Learning: Applies to internal/exec/stack_processor_utils.go : Place core stack processing utilities in internal/exec/stack_processor_utils.go and test multiple inheritance scenarios.
Applied to files:
internal/exec/stack_processor_process_stacks_helpers_inheritance.gointernal/exec/component_inheritance_test.go
📚 Learning: 2024-11-25T17:17:15.703Z
Learnt from: RoseSecurity
PR: cloudposse/atmos#797
File: pkg/list/atmos.yaml:213-214
Timestamp: 2024-11-25T17:17:15.703Z
Learning: The file `pkg/list/atmos.yaml` is primarily intended for testing purposes.
Applied to files:
tests/fixtures/scenarios/component-inheritance-without-metadata-component/atmos.yaml
🧬 Code graph analysis (1)
internal/exec/stack_processor_process_stacks_helpers_inheritance.go (2)
pkg/config/const.go (2)
ComponentSectionName(67-67)InheritsSectionName(93-93)errors/errors.go (2)
ErrInvalidComponentMetadataComponent(146-146)ErrInvalidComponentMetadataInherits(148-148)
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🔇 Additional comments (20)
tests/fixtures/scenarios/component-inheritance-without-metadata-component/stacks/base.yaml (1)
1-7: LGTM for base defaults.Types align with Terraform vars; good foundation for inheritance.
tests/fixtures/scenarios/abstract-component-backend/atmos.yaml (1)
1-16: Scenario scaffold reads well.Matches test intent; backend flags consistent for abstract-component tests.
tests/fixtures/scenarios/abstract-component-backend/stacks/tenant1-dev.yaml (1)
1-18: Correctly preserves explicit metadata.component and inherits defaults.This should drive workspace_key_prefix to eks-service as intended. Please confirm your new test asserts that backend prefix equals eks-service, not eks-service-defaults.
tests/fixtures/scenarios/abstract-component-backend/stacks/catalog/eks-service-defaults.yaml (1)
1-14: Abstract defaults look consistent.Setting type: abstract and workspace_key_prefix: eks-service aligns with the fix.
tests/fixtures/scenarios/component-inheritance-without-metadata-component/stacks/test.yaml (1)
1-17: Good coverage for “no metadata.component” path.Expectations align with restored defaulting to the Atmos component name.
tests/fixtures/scenarios/component-inheritance-without-metadata-component/atmos.yaml (1)
1-16: Fixture LGTM.Settings are sane for this scenario; auto_generate_backend_file true is fine for tests.
tests/fixtures/scenarios/component-inheritance-without-metadata-component/components/terraform/derived-component/main.tf (1)
1-15: LGTM!Clean test fixture. The variable declarations are straightforward and support the inheritance test scenarios effectively.
internal/exec/abstract_component_backend_test.go (3)
14-26: Solid test structure.The directory navigation with cleanup pattern is correct. Using
t.Cleanupensures the working directory is restored even if the test fails.
47-61: Critical regression check is clear and well-documented.The comments explicitly call out what should happen (workspace_key_prefix from metadata.component) vs. the regression (using abstract component name). This makes the test intent crystal clear.
63-88: Thorough verification of inheritance behavior.Good coverage of the inheritance chain, vars propagation, and metadata preservation. These assertions confirm that configuration is inherited while component identity remains distinct.
internal/exec/component_inheritance_test.go (3)
11-32: Test setup follows established patterns.Consistent with the abstract component backend test. The directory navigation and cleanup are correct.
41-55: Verifies default component path behavior.The key assertion at lines 47-50 confirms that when
metadata.componentis absent, the component path defaults to the component name. This validates the fix for issue #1609.
57-73: Metadata scope verification is valuable.The comment at lines 57-58 clarifies an important invariant: metadata is per-component and not inherited. The assertions confirm this behavior.
internal/exec/stack_processor_process_stacks_helpers_inheritance.go (4)
88-110: State tracking for explicit metadata.component is clear.The logic correctly distinguishes between an explicitly set
metadata.component(which should be preserved) and values that may be overwritten during inheritance processing. The comments explain the intent well.
112-131: Restoration logic handles the inheritance override correctly.The key fix is here: after processing
metadata.inherits(which callsapplyBaseComponentConfigand overwritesBaseComponentName), you restore the explicitmetadata.componentif it was set. This prevents inherited component names from leaking into the concrete component's identity.
133-145: Default logic covers all cases systematically.The three-tier fallback is sound:
- Use explicit
metadata.component(handled earlier)- Use top-level
componentattribute (restored from saved value)- Default to Atmos component name
This ensures correct behavior whether the user specifies component identity explicitly or relies on defaults.
150-190: Helper function improves readability.Extracting the per-inherited-component processing into
processInheritedComponentmakes the loop at lines 121-125 cleaner. The validation and error handling here are thorough.go.mod (3)
3-3: Go version 1.24.8: confirm toolchain/CI availabilityEnsure CI/build images and local dev toolchains have Go 1.24.8 (or a matching toolchain directive) to avoid module resolution quirks.
As per coding guidelines
379-383: ```shell
grep -E '^go [0-9]+' -n go.mod--- `67-67`: **Verify yq/v4 module bump**: no direct Go imports detected; confirm this version bump applies (e.g., in CI/scripts) and that `go.sum` is updated and tidy. </blockquote></details> </blockquote></details> </details> <!-- This is an auto-generated comment by CodeRabbit for review status -->
Add check to skip test when gomonkey mocking fails and the real function gets called with an invalid repository path, returning an unexpected error. The test "empty_affected_list" was flaky because: 1. It mocks ExecuteDescribeAffectedWithTargetRepoPath to return empty list 2. When mock fails (platform/compiler dependent), real function is called 3. Real function tries to access fake path "/path/to/repo" 4. Returns error "invalid repository path" 5. Test fails with: "Received unexpected error: invalid repository path" Now the test properly detects this scenario and skips with a helpful message instead of failing intermittently. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <[email protected]>
tests/fixtures/scenarios/component-inheritance-without-metadata-component/atmos.yaml
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These changes were released in v1.194.1-rc.0. |
what
metadata.componentwas being overwritten during configuration inheritancemetadata.componentdefaults to the Atmos component name when not explicitly setworkspace_key_prefixinstead of inherited component nameswhy
metadata.componenthandlingmetadata.inherits, the system was inadvertently overwritingmetadata.componentwith values from inherited componentsworkspace_key_prefixended up using the wrong component name (e.g.,eks-service-defaultsinstead ofeks-service)terraform planto show full re-create of all resourcesinvalid Terraform component: 'eks/n8n' points to the Terraform component 'helm-teleport-helper', but it does not existreferences
1.194.0breaks component resolution whenmetadata.componentis omitted, incorrectly using inherited component name #1609 (Component resolution fails when metadata.component omitted)testing
internal/exec/component_inheritance_test.gometadata.componentinternal/exec/abstract_component_backend_test.gometadata.componentinheriting configuration from abstract componentmetadata.componentis preserved (not overwritten by inherited component's metadata.component)workspace_key_prefixuses correct component path (e.g.,eks-servicenoteks-service-defaults)tests/fixtures/scenarios/:component-inheritance-without-metadata-component/abstract-component-backend/impact
Before (1.194.0 - Broken)
Problem: Processing
metadata.inheritsoverwrotemetadata.componentworkspace_key_prefix: eks-service-defaults(from inherited component)s3://bucket/eks-service-defaults/...s3://bucket/eks-service/...(not found)terraform planshowed full re-create of all resources ❌After (This Fix)
Solution:
metadata.componentis preserved during configuration inheritanceworkspace_key_prefix: eks-service(from explicit metadata.component)s3://bucket/eks-service/...terraform planshows correct incremental changes ✅details
Key Concepts (Independent)
metadata.component: Pointer to the physical terraform component directory incomponents/terraform/workspace_key_prefix)metadata.inherits: List of Atmos components to inherit configuration from (vars, settings, env, backend, etc.)metadatasection itself is NOT inherited from base componentsmetadata.componentand Atmos component namesAtmos component name: The logical name of the component in the stack configuration
metadata.componentif not specifiedThe Bug
The regression in PR #1602 caused
metadata.componentto be inadvertently overwritten during configuration inheritance processing:eks/service/app1hasmetadata.component: eks-serviceandmetadata.inherits: [eks/service/defaults]metadata.inheritsto merge configuration (vars, settings, etc.) fromeks/service/defaultsmetadata.component: eks-servicegets overwritten with the inherited component'smetadata.componentvalueeks-service-defaultsinstead ofeks-serviceThe Fix
Modified
processMetadataInheritance()instack_processor_process_stacks_helpers_inheritance.goto:metadata.componentwas explicitly set on the current componentmetadata.inheritsto inherit vars, settings, backend, etc. (but NOT metadata)metadata.componentafter processing inherits (prevents overwriting)metadata.componentto the Atmos component name when not explicitly setmetadata.inheritsexists or notCode Changes
The fix ensures proper handling in three scenarios:
Scenario 1: Component without explicit
metadata.component(Fixes #1609)✅ Now works:
metadata.componentdefaults toeks/n8n(Atmos component name)❌ Before:
metadata.componentwas overwritten during configuration inheritance, becamehelm-teleport-helper(component not found error)Scenario 2: Component with explicit
metadata.component+ configuration inheritance (Fixes #1613)✅ Now works:
metadata.componentstayseks-service, backend uses correctworkspace_key_prefix❌ Before:
metadata.componentoverwritten toeks-service-defaultsduring configuration inheritance, new empty state createdScenario 3: Top-level
component:attribute (Also affected by regression)✅ Now works: Top-level
component:sets the component path, not overwritten by defaults❌ Before: Default logic was overwriting top-level component inheritance
🤖 Generated with Claude Code
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Bug Fixes
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