Python script that prints the images pulled in each node on a kubernetes cluster, similarly to `docker images`

k8s_node_images.py

#!/usr/bin/python
# Usage: kubectl get node [optional: name of node] -o json | python k8s_node_images.py
import sys
import json
data = json.load(sys.stdin)
try:
    nodes = data['items']
except KeyError:
    nodes = [data]
for node in nodes:
    node_name = node['metadata']['name']
    print("\nNODE {}".format(node_name))
    print("REPOSITORY".ljust(48)+"  "+TAG".ljust(16)+"  "+SIZE")
    images = node['status']['images']
    for image in images:
        if len(image['names'])<2:
            continue
        names = image['names'][1].rsplit(":",1)
        name = names[0]
        tag = names[1]
        size = image['sizeBytes']
        size_mb = "{0:.1f}MB".format(size/1000000.)
        print(name.ljust(48)+"  "+tag.ljust(16)+"  "+size_mb)