segfault on kube_inventory...

[ebertech]

Relevant telegraf.conf:

[[inputs.kube_inventory]]
url = "https://kubernetes.default.svc"
bearer_token = "/var/run/secrets/kubernetes.io/serviceaccount/token"
insecure_skip_verify = true

System info:

1.19, EKS, Docker

Docker

Steps to reproduce:

Run this inside of EKS with the settings provided and create an endpoint as described below.

Expected behavior:

I get some data from the endpoint

Actual behavior:

I get a segfault...

Additional info:

Here's the specific line causing the issue I think...

79f5803#r52829921

I don't think all EndPoint addresses have a nodeName... eg, this is present in my cluster (IP's removed)

apiVersion: v1
items:
- apiVersion: v1
  kind: Endpoints
  metadata:
    creationTimestamp: "2019-07-27T00:57:07Z"
    name: kubernetes
    namespace: default
    resourceVersion: "189547558"
    selfLink: /api/v1/namespaces/default/endpoints/kubernetes
    uid: 74d61790-b009-11e9-a821-0aef259a3062
  subsets:
  - addresses:
    - ip: IP.IP.IP.IP
    - ip: IP.IP.IP.IP
    ports:
    - name: https
      port: 443
      protocol: TCP
kind: List
metadata:
  resourceVersion: ""
  selfLink: ""

Simple workaround is to just resource_exclude the endpoints...