"JMESPath is a query language for JSON." - http://jmespath.org

Links

• http://jmespath.org/examples.html
• http://jmespath.org/tutorial.html
• https://github.com/jmespath/jmespath.terminal
• https://github.com/jmespath/jp

Examples

Grab some kubernetes fields and remap them to be less deep

kubectl get po --all-namespaces -o json |
jp "items[*].{name: metadata.name, namespace: metadata.namespace, imagePullSecrets: spec.imagePullSecrets[*].name}"

Or filter only to non-default namespace where imagePullSecrets is populated

kubectl get po --all-namespaces -o json |
jp "items[?metadata.namespace != 'default' && spec.imagePullSecrets != null].{name: metadata.name, namespace: metadata.namespace, imagePullSecrets: spec.imagePullSecrets[*].name}"