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yxxhero
afdb2487a6
* feat: add `inherits:` for sub-helmfile config inheritance
Add an opt-in `inherits:` field to `helmfiles:` entries so a sub-helmfile
can inherit specific configuration categories from its parent:
helmfiles:
- path: myapp.yaml
inherits: [repositories, environments]
Allowed values: repositories, helmDefaults, commonLabels, apiVersions,
kubeVersion, templates, environments. Child values win; parent fills gaps
(consistent with `bases:`). This directly fixes #1495, where a repository
declared in the parent was unavailable to sub-helmfiles, producing a
confusing "repo not found" error.
Implementation notes:
- The 6 pure fields (repositories, helmDefaults, commonLabels, apiVersions,
kubeVersion, templates) are merged post-load via MergeInherited; verified
all are consumed post-load (ExecuteTemplates/converge), never at parse.
- environments is injected pre-load as ctxEnv, because RenderedValues is
baked at load time; the parent's resolved values become the base and the
child's own environments: block overrides per key.
- helmDefaults uses a *HelmSpec pointer (value type is non-comparable) with
a no-override mergo merge, so a child that omits helmDefaults inherits the
parent's fully.
- A footgun warning (WarnUninheritedRepos) suggests
`inherits: [repositories]` when a release references a repo the parent
declares but the child lacks.
- Unknown inherits keys are rejected at parse time with the allowed set.
Inheritance is opt-in and fully backward compatible: empty (the default)
preserves the historical independent-sub-helmfile behavior.
Fixes #1495
Signed-off-by: yxxhero <aiopsclub@163.com>
* fix: address review — deep-copy inherited config and fix bases: doc link
- BuildInheritedConfig now deep-copies the pure fields via a YAML round-trip
(Env via environment.DeepCopy) so the returned config never aliases the
parent state's slices/maps, matching its doc comment. Now returns an error
to surface round-trip failures; the call site in processNestedHelmfiles is
updated. Added TestBuildInheritedConfig_PureFieldsAreDeepCopied to lock
in the no-aliasing guarantee.
- Fix the broken `bases:` anchor (#) in shared-configuration-across-teams.md
to point to writing-helmfile.md#layering-state-files.
Signed-off-by: yxxhero <aiopsclub@163.com>
* fix: address review — reject inherits without path and document helmDefaults caveat
Signed-off-by: yxxhero <aiopsclub@163.com>
* fix: address review — make AllowedInherits immutable and clarify effective-repo wording
Signed-off-by: yxxhero <aiopsclub@163.com>
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Signed-off-by: yxxhero <aiopsclub@163.com>