zipline: strict values.schema.json, ingress gate and null-safe hardening
Three changes, all about values that do not do what they promise: 1. values.schema.json (#68): additionalProperties: false on every chart-owned object level, so a key the chart does not read is rejected at render time instead of being silently ignored. 2. Ingress gate (#93): the Ingress template is wrapped in {{- if .Values.ingress.enabled }} and the key is added to values.yaml with default true, so behaviour is unchanged. As in rallly, ingress.domain is not a pure Ingress value: the StatefulSet also feeds it to CORE_DEFAULT_DOMAIN, the app's default domain for generated share links, and did so without required(). The guarantee only came from the ungated Ingress template, so the gate would have handed out unusable links silently. That read is now required() as well; only clusterIssuer becomes unnecessary. 3. Null-safety for hardening, probes and resources (#99): an erased block fell back to "securityContext: null" (unhardened), a vanished probe or a container without resource accounting. The rebuilt liveness probe keeps "/" rather than /api/healthcheck, so a database outage still does not restart the pod. config stays deliberately not null-safe: storage and storageClass are required(), which puts an erased block in the loud class #99 excludes. Apart from an added comment, the rendered manifest is unchanged.
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{
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"$schema": "https://json-schema.org/draft-07/schema#",
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"title": "zipline values",
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"description": "Strict values schema (issue #68). additionalProperties is false on every chart-owned object level, so a key that the chart does not read is rejected at render time instead of being silently ignored. The only objects that stay open are the ones passed verbatim into the Kubernetes pod spec (probes, security contexts, global) - the chart does not interpret their contents, so it cannot judge which keys are meaningful. The hardening, probe and resources blocks additionally accept null, because an erased block falls back to the chart defaults (issue #99).",
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"type": "object",
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"additionalProperties": false,
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"properties": {
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"global": {
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"description": "Helm's conventional cross-chart values. Unused by this chart, kept open so an umbrella install cannot break on it.",
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"type": "object"
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},
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"scaleDown": {
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"type": "boolean"
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},
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"secrets": {
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"type": "object",
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"additionalProperties": false,
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"properties": {
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"databaseSecretRef": {
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"type": ["string", "null"]
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},
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"ziplineSecretRef": {
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"type": ["string", "null"]
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}
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}
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},
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"config": {
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"description": "Storage and upload settings. Not null-safe on purpose: storage and storageClass are required(), so an erased block fails loudly - issue #99 covers only the silent class.",
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"type": "object",
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"additionalProperties": false,
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"properties": {
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"storage": {
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"description": "Size of the uploads PVC. Changing it on an existing release only takes effect if the StorageClass allows volume expansion.",
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"type": ["string", "null"]
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},
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"storageClass": {
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"type": ["string", "null"]
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},
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"maxUploadFileSize": {
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"description": "Rendered into the ingress-nginx body-size annotations, so it only takes effect while the Ingress is enabled.",
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"type": ["string", "null"]
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}
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}
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},
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"zipline": {
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"type": "object",
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"additionalProperties": false,
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"properties": {
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"replicas": {
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"type": "integer",
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"minimum": 0
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},
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"securityContext": {
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"$ref": "#/definitions/securityContext"
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},
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"livenessProbe": {
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"$ref": "#/definitions/probe"
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},
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"readinessProbe": {
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"$ref": "#/definitions/probe"
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},
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"startupProbe": {
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"$ref": "#/definitions/probe"
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},
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"resources": {
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"$ref": "#/definitions/resources"
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},
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"env": {
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"$ref": "#/definitions/env"
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}
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}
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},
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"ingress": {
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"type": "object",
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"additionalProperties": false,
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"properties": {
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"enabled": {
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"description": "Gates the whole Ingress template (issue #93). false omits the Ingress and makes clusterIssuer unnecessary - but NOT domain, which is also the app's default domain for generated share links.",
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"type": "boolean"
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},
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"clusterIssuer": {
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"type": ["string", "null"]
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},
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"domain": {
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"type": ["string", "null"]
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},
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"className": {
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"type": ["string", "null"]
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},
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"annotations": {
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"description": "Extra Ingress annotations, merged with the cert-manager and body-size annotations the chart always sets. Free-form keys by nature.",
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"type": "object"
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}
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}
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}
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},
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"definitions": {
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"resources": {
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"description": "May be null / empty: the chart then falls back to its default requests and computed limits (issue #99) instead of rendering a container without resource accounting.",
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"type": ["object", "null"],
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"additionalProperties": false,
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"properties": {
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"limitFactor": {
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"type": "number",
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"exclusiveMinimum": 0
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},
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"requests": {
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"$ref": "#/definitions/resourceList"
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},
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"limits": {
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"$ref": "#/definitions/resourceList"
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}
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}
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},
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"resourceList": {
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"type": ["object", "null"],
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"additionalProperties": false,
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"properties": {
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"cpu": {
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"type": ["string", "number", "null"]
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},
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"memory": {
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"type": ["string", "number", "null"]
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},
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"ephemeral-storage": {
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"type": ["string", "number", "null"]
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},
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"ephemeralStorage": {
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"type": ["string", "number", "null"]
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}
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}
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},
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"env": {
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"type": "array",
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"items": {
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"type": "object",
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"additionalProperties": false,
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"required": ["name"],
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"properties": {
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"name": {
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"type": "string"
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},
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"value": {
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"type": "string"
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},
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"valueFrom": {
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"type": "object",
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"additionalProperties": false,
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"properties": {
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"secretKeyRef": {
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"$ref": "#/definitions/keyRef"
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},
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"configMapKeyRef": {
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"$ref": "#/definitions/keyRef"
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}
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}
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}
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}
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}
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},
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"keyRef": {
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"type": "object",
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"additionalProperties": false,
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"required": ["name", "key"],
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"properties": {
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"name": {
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"type": "string"
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},
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"key": {
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"type": "string"
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}
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}
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},
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"securityContext": {
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"description": "May be null / empty at any level: the chart then falls back to its hardening defaults (issue #99) instead of rendering an unhardened workload.",
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"type": ["object", "null"],
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"additionalProperties": false,
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"properties": {
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"pod": {
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"description": "Merged onto the chart's pod hardening defaults and rendered as the pod's securityContext; kept open because the chart does not interpret the individual fields.",
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"type": ["object", "null"]
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},
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"container": {
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"description": "Merged onto the chart's container hardening defaults and rendered as the container's securityContext; kept open because the chart does not interpret the individual fields.",
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"type": ["object", "null"]
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}
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}
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},
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"probe": {
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"description": "Merged onto the chart's probe defaults and rendered as a container probe; kept open because the chart does not interpret the individual fields. May be null / empty, which means the defaults apply (issue #99) rather than the probe disappearing.",
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"type": ["object", "null"]
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}
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}
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}
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