Kubernetes Cookbook - Second Edition

JSON

The JSON format is also simple and easy to read for users, but more program-friendly. Because it has data types (number, string, Boolean, and object), it is popular to exchange the data between systems. Technically, YAML is a superset of JSON, so JSON is a valid YAML, but not the other way around. To know more about JSON, you can refer to the following website link: http://json.org/. 

The following example of the Pod is the same as the preceding YAML format, but using the JSON format:

$ cat nginx-pod.json{  "apiVersion": "v1",  "kind": "Pod",  "metadata": {       "name": "my-nginx",       "labels": {              "env": "dev"       }  },  "spec": {    "containers": [      {        "name": "my-nginx",        "image": "nginx",        "ports": [          {            "containerPort": 80              }        ]      }     ]  }}