- Detect `config.kubernetes.io/apply-time-mutation` annotation
- Parse annotation string value as YAML
- Treat source resource as a dependency
- Before applying, apply specified substitutions
- Each mutation may include one or more substitution
- Substitutions may optionally replace a token in the existing
string value, or replace the whole value (e.g. non-strings)
- Source and target fields are specified with JSONPath expressions
- Using github.com/spyzhov/ajson because it supports mutation, and
not just retrieval
- ApplyTimeMutator uses an in-memory ResourceCache to reduce GETs
Stefan Prodan
Karl Isenberg