fix(aisix): stop rendering env names twice when extraEnvVars overrides them - #398
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…s them When extraEnvVars set a name the chart also rendered, the container carried the name twice. Kubernetes lets the later (user's) entry win, but a repeated name makes a later upgrade fail after a rollback and is refused outright by server-side apply, so a Helm 4 install with such an override fails. The chart now drops its own entry for a name extraEnvVars also sets, except for the names chart 1.5.0 rendered. A 1.5.0 release that overrides one of those already carries it twice, and a Helm 3 upgrade whose manifest carries it once deletes both entries, the override included. For those names the chart keeps rendering its entry (with 1.5.0's value where the chart no longer sets it) ahead of the user's, which also restores the overrides #397 dropped on upgrade for the names it moved into the ConfigMap. The effective value is unchanged: always the extraEnvVars one.
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Navigate logical layers of code changes, visualize relationships, and explore their blast radius. 📝 WalkthroughWalkthroughThe AISIX chart now builds container environment variables through shared Helm helpers. It preserves selected version 1.5.0 entries when users override them, appends ChangesAISIX environment overrides
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Bug fix Merge Risk: 🟡 Moderate · up to Redis installations that override 🚥 Pre-merge checks | ✅ 5 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (5 passed)
Full details: E2e Test Quality ReviewExplanation Blocking E2E gap: the new checks only run Resolution Add a kind-based E2E test that installs the chart with the relevant
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Review comments at @charts/aisix/templates/_helpers.tpl:
- Around line 338-366: Remove the append of AISIX_RATELIMIT__BACKEND from the
Redis block in aisix.env150, while retaining the Redis URL entry; the backend
variable should come from aisix.env so extraEnvVars overrides do not create
duplicate names.
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.github/scripts/aisix-render-checks.shcharts/aisix/README.mdcharts/aisix/README.md.gotmplcharts/aisix/templates/_helpers.tplcharts/aisix/templates/deployment.yamlcharts/aisix/values.yaml
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…ars is a compatibility path only
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When
extraEnvVarssets an env name the chart also renders, the gateway container ends up with that name twice. Kubernetes lets the later entry win, andextraEnvVarscomes last, so the user's value is the one that takes effect. The duplicate still causes trouble, though. Server-side apply refuses repeated names, so a Helm 4 install with such an override fails (duplicate entries for key [name="…"]), and a strategic-merge upgrade after a rollback can fail with "order in patch list".The obvious fix, dropping the chart's own entry, breaks upgrades. A 1.5.0 release that overrides a name 1.5.0 rendered already has that name twice in its live Deployment. A Helm 3 upgrade to a manifest that has the name once then deletes both entries, the override included. This was measured on kind. #397 already runs into this for the names it moved into the ConfigMap (
AISIX_MANAGED__CP_BASE_URL,AISIX_MANAGED__HEARTBEAT_INTERVAL_SECS,AISIX_PROXY__ADDR,AISIX_OBSERVABILITY__METRICS__PROMETHEUS__ADDR, …). A 1.5.0 →mainupgrade silently lost those overrides, and the gateway fell back to the chart values until a second upgrade restored them. This PR fixes that regression too.The env list is now built in one helper,
aisix.env, which applies these rules:aisix.env150) keeps the chart's entry ahead of the user's whenextraEnvVarsoverrides it. If the chart no longer renders the entry itself, it uses the value 1.5.0 gave it. Upgrading a 1.5.0 release therefore keeps the override.configSecrets-generated ones, is deduplicated. The chart leaves its entry out whenextraEnvVarssets the same name.extraEnvVarsone, as before.When
extraEnvVarssets none of the chart's own names, the rendered manifests are identical tomain. That includes the #397 PEM wiring.aisix-render-checks.shgains four checks covering both behaviours. Againstmain, three of them fail: the new-name duplicate in both modes, and the missing 1.5.0 pair. The fourth guards standalone mode against over-rendering and passes on both. TheextraEnvVarsvalue comment and the README now spell out three things: overriding a chart-managed name throughextraEnvVarsis only a compatibility path for existing deployments; for a 1.5.0 name the container then lists it twice, which Helm 4 server-side apply rejects; and new installs set the value in its own key or underconfig.One limit remains: a 1.5.0 name overridden through
extraEnvVarsstill appears twice, so a Helm 4 server-side-apply install with such an override still fails. Removing that duplicate would drop the override on upgrade from 1.5.0.🤖 Generated with Claude Code