Automatic merge from submit-queue Support status.hostIP in downward API **What this PR does / why we need it**: Exposes pod's hostIP (node IP) via downward API. **Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes https://github.com/kubernetes/kubernetes/issues/24657 **Special notes for your reviewer**: Not sure if there's more documentation that's needed, please point me in the right direction and I will add some :)
Kubernetes Documentation: releases.k8s.io/HEAD
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The User's guide is for anyone who wants to run programs and services on an existing Kubernetes cluster.
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The Cluster Admin's guide is for anyone setting up a Kubernetes cluster or administering it.
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The Developer guide is for anyone wanting to write programs that access the Kubernetes API, write plugins or extensions, or modify the core code of Kubernetes.
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The Kubectl Command Line Interface is a detailed reference on the
kubectlCLI. - 
The API object documentation is a detailed description of all fields found in core API objects.
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An overview of the Design of Kubernetes
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There are example files and walkthroughs in the examples folder.
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If something went wrong, see the troubleshooting guide for how to debug. You should also check the known issues for the release you're using.
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To report a security issue, see Reporting a Security Issue.