feat(aisix): render the gateway's startup config from an explicit config block - #397
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…fig block Every gateway setting the chart deploys is now declared in values.yaml and reaches the gateway as its config file through a ConfigMap, in both modes. `config:` mirrors the gateway's startup file key for key at the gateway's own defaults; the chart fills the keys it owns (listen addresses, listeners, rate-limit backend, the control-plane connection, the standalone resources file, admin) and rejects them under config:. Credentials never enter the ConfigMap: the control-plane mTLS bundle is mounted as files (managed.cp_*_file), the rate-limit Redis URL stays a secretKeyRef env var, and the new configSecrets block wires the other credential-bearing keys from Secrets. extraEnvVars is documented as system-level only; AISIX_* variables there still override the file. The pod template always carries checksum/config and checksum/secret, so a config change or a chart-managed Secret change rolls the pods in both modes. CI checks config: against api7/aisix config.reference.json at the chart's appVersion and boots the appVersion image on the rendered file in both modes.
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Navigate logical layers of code changes, visualize relationships, and explore their blast radius. 📝 WalkthroughWalkthroughThe aisix chart now renders gateway configuration from Helm values and mounts it in standalone and control-plane deployments. It supports Secret-backed credential settings and validates configuration drift and gateway startup in CI. ChangesAisix gateway configuration
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant HelmChart
participant ConfigMap
participant Deployment
participant Gateway
HelmChart->>ConfigMap: Render config.yaml
HelmChart->>Deployment: Set config mount and Secret environment variables
Deployment->>Gateway: Mount config.yaml and provide Secret values
Gateway->>Gateway: Load file settings with environment overrides
Merge Risk: 🟡 Moderate · up to A misplaced Redis password can be published in a ConfigMap instead of remaining Secret-backed. Close this validation gap before merging. 🚥 Pre-merge checks | ✅ 5 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (5 passed)
Full details: E2e Test Quality ReviewExplanation Major E2E coverage gap. The new boot test renders only Resolution Add E2E coverage that deploys the rendered chart, or validates the rendered Deployment and Secret manifests, in both modes. Include a
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Review comments at @charts/aisix/templates/_helpers.tpl:
- Around line 306-311: Update aisix.configPathSet to detect a literal key
matching the full dotted path before traversing it as nested map keys. Preserve
the existing nested config traversal so documented nested structures remain
valid.
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📒 Files selected for processing (13)
.github/scripts/aisix-config-boot.sh.github/scripts/check-aisix-config-drift.py.github/workflows/ci.yamlAGENTS.mdcharts/aisix/README.mdcharts/aisix/README.md.gotmplcharts/aisix/ci/config-values.yamlcharts/aisix/config-policy.yamlcharts/aisix/templates/_helpers.tplcharts/aisix/templates/configmap.yamlcharts/aisix/templates/deployment.yamlcharts/aisix/templates/secret.yamlcharts/aisix/values.yaml
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A literal `cache.redis.password` key (at any depth) slipped past the owned/secret path checks, which walk nested maps, and would have landed in the ConfigMap. config is nested maps only; a dotted key now fails the render.
… optional sub-keys
A release that sets AISIX_MANAGED__CP_{CERT,KEY,CA}_PEM through
extraEnvVars would fail to boot once the chart wrote managed.cp_*_file
(the gateway rejects a PEM and a file for one slot). Such a release now
keeps the 1.5.0 wiring: all three PEMs as secretKeyRef env vars from the
bundle Secret, no file keys, no mount.
The drift check reads config.reference.json's new optional_blocks and
fails on a sub-key of cache.redis / ratelimit.redis that
config-policy.yaml neither documents (optional), owns, nor routes
through configSecrets.
.github/scripts/aisix-render-checks.sh pins the rendering: file vs PEM
wiring, configSecrets env, list keys, standalone sections, and the
refusals. Wired into CI.
config.reference.json lists url_rewrites[] and client_type_rules[] elements; config-policy.yaml documents their keys, and an owned list (proxy.listeners) excludes its element.
A release that sets the CP PEMs through extraEnvVars must render the chart's own PEM variables and then the extraEnvVars ones, duplicates included, exactly as 1.5.0 did: dropping the chart's copy makes the upgrade's three-way merge delete both entries of that name, and the gateway then boots with no certificate bundle.
2 participants
charts/aisixnow declares every gateway setting it deploys invalues.yamland hands it to the gateway as its config file through a ConfigMap, in both modes. Before this, control-plane mode used the image's baked/etc/aisix/config.managed.yamland the chart pushed its settings in asAISIX_*env, and the only documented way to change anything else wasextraEnvVars.The new
config:block mirrors the gateway's startup file one-to-one — same section and key names asconfig.example.yaml/config.rs— with every key at the gateway's own default (nullmeans "leave it to the gateway").aisix.configFilerenders it and fills in the keys the chart owns for the mode:proxy.addrand the metrics address come fromcontainerPorts, andproxy.listenersfromlistenersratelimit.backendcomes fromrateLimit.backendmanaged.*fromcontrolPlane.*plus the placeholdersconfig.managed.yamlcarries (etcd endpoint, admin slot)resources_fileandadmin.enabled: false, and noetcd/managedsectionsThose owned keys, plus the credential-bearing ones, are listed in
charts/aisix/config-policy.yaml. Writing any of them underconfig:fails the render with a message naming the value to use. So does a dotted key anywhere underconfig(configis nested maps only), which would otherwise slip past those path checks.etcdexposes onlydial_timeout_ms/request_timeout_ms, and that is read in control-plane mode only. The retiredobservability.metrics.otlp/tracingkeys aren't listed.Credentials never go into the ConfigMap:
existingSecret) is now mounted as files and read throughmanaged.cp_{cert,key,ca}_fileinstead ofAISIX_MANAGED__CP_*_PEMenv. The gateway treats the two forms the same.AISIX_MANAGED__CP_{CERT,KEY,CA}_PEMthroughextraEnvVars. The gateway rejects a PEM and a file for the same slot, so that release keeps the 1.5.0 wiring: no file keys and no mount, and the chart's own PEM env vars are rendered before theextraEnvVarsones, duplicates included, exactly as 1.5.0 did. Dropping the chart's copy would make the upgrade's three-way merge delete both entries of that name.secretKeyRefenv var fromrateLimit.redis.configSecretsblock ({<config path>: {secretName, key}}) wirescache.redis.{url,username,password}andratelimit.redis.{username,password}from Secrets assecretKeyRefenv. Any other path is rejected.extraEnvVarsis now documented as being for system-level env and for variables the standalone resources file references. AnAISIX_*variable set there still overrides the file, so existing setups keep working.Behaviour changes:
checksum/configandchecksum/secret. Before, control-plane mode withcertificate.existingSecrethad no checksum at all, and the chart-managed rate-limit Redis URL Secret wasn't checksummed in either mode. So upgrading to this chart rolls the pods once.rateLimit.backend: rediswithconfig.ratelimit.redis.modeset toclusterorsentinelno longer requiresrateLimit.redis.url.extraEnvVars. That path still works; it just isn't the documented way any more.No values key is renamed, removed or retyped, and every new key has a default. With unchanged values the rendered file loads to the same effective configuration each mode ran before. Templates treat
config/configSecretsas possibly absent, becausehelm upgrade --reuse-valuesfrom 1.5.0 carries the old chart's values without the new defaults. In that case the file is simply shorter and the gateway falls back to the same defaults.CI gains two checks:
.github/scripts/check-aisix-config-drift.pycomparesconfig:key-for-key and default-for-default againstconfig.reference.jsonfrom api7/aisix atv<appVersion>, minusconfig-policy.yaml. It also checks that every sub-key of the blocks that are off unless written (cache.redis,ratelimit.redis) and of list elements (url_rewrites[],client_type_rules[]) is documented, owned, or routed throughconfigSecrets, perconfig-policy.yaml'soptionallist. When the tag predates the reference (1.5.0 does), it falls back tomain. The reference comes from feat(config): publish config.reference.json for the Helm chart's config drift check aisix#1253 and #1255, so this check stays red until #1255 merges..github/scripts/aisix-render-checks.shpins the rendering: file vs PEM wiring,configSecretsenv, list keys, the standalone sections, and the refusals..github/scripts/aisix-config-boot.shboots theappVersionimage on the rendered file in both modes, usingci/config-values.yaml, which sets list-typed keys (heap_profiling.auto_dump.thresholds,request_id.accept_headers,real_ip.trusted_proxies,url_rewrites, bucket edges, metric labels) throughconfig:. Standalone must answer/livez. Control-plane mode must load the file and stop only at the control-plane certificate step.AGENTS.mdgets a section on the principle and how this chart implements it.version/appVersionare not bumped; this ships with the next release's chart bump.🤖 Generated with Claude Code