Two changes, both 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. Null-safety for hardening, probes and resources (#99): an override
written without children is YAML null and replaced the whole default
sub-tree, rendering "securityContext: null" (unhardened container), a
vanished probe or a container without resource accounting - silently.
The defaultedDict helper from #96 is adopted so an empty block means
"chart defaults apply", while an explicitly set value still wins,
including false and 0.
The schema types allow null for exactly these blocks, so the two changes
agree instead of the schema rejecting what the helper is meant to absorb.
No ingress gate here: this chart already gates its Ingress correctly.
Rendering with normal values is byte-identical to the previous version.
Major bump: a schema can break existing deployments that carry dead keys.
jklein
4976c67ce3