Essentialy a yaml differ, but K8s way.
pip install git+https://github.com/johnmarcou/kdiff
pip install git+https://github.com/johnmarcou/kdiff --upgrade
# kdiff examples/ns.yaml examples/ns-label.yaml
### Modified Namespace-default ###
apiVersion: v1
kind: Namespace
metadata:
+ labels:
+ mylabel: ok
name: default
pip unsintall kdiff -y