Recursive updates of the properties in cache

At the moment, at migrate/update time, there is a merge of the old and new properties helm by the instance. However, this merge of properties does not take account of nested maps that need to be recursively merged.

Solution 1

For any "property" of the new Map, recursive update will be apply only if in both new and old map, the type of the value "map.get(property)" are Map.

Type of oldMap.get(property)	Type of newMap.get(property)	Operation

Type of oldMap.get(property)	Type of newMap.get(property)	Operation
int/string/boolean/list	Map	update
Map	int/string/boolean/list	update
int/string/boolean/list	int/string/boolean/list	update
Map	Map	recursive update
not present	int/string/boolean/list/map	no update
int/string/boolean/list/map	not present	insert
null	int/string/boolean/list/map	delete

Example

Instance properties

properties:
  chart:
    chartId:
      name: acelement
      version: 0.1.0
    namespace: default
    releaseName: acm-starter
    podName: acm-starter

Instance update/migrate properties

properties:
  chart:
    releaseName: acm-starter-new
    podKey: 123
    podName: null

Merged properties

properties:
  chart:
    chartId:
      name: acelement
      version: 0.1.0
    namespace: default
    releaseName: acm-starter-new
    podKey: 123