Mastering Kubernetes - Second Edition

Filtering the output with httpie and jq

The output from the API can be too verbose sometimes. Often, you're interested just in one value out of a huge chunk of JSON responses. For example, if you want to get the names of all running services, you can hit the /api/v1/services endpoint. The response, however, includes a lot of additional information that is irrelevant. Here is a very partial subset of the output:

$ http http://localhost:8080/api/v1/services{    "apiVersion": "v1",    "items": [        {            "metadata": {                "creationTimestamp": "2018-03-03T05:18:30Z",                "labels": {                    "component": "apiserver",                    "provider": "kubernetes"                },                "name": "kubernetes",                …            },            "spec": {                …            },            "status": {                "loadBalancer": {}            }        },        …    ],    "kind": "ServiceList",    "metadata": { "resourceVersion": ...