Bug 1274083, added Configuring Node Resources section

[ahardin-rh]

https://bugzilla.redhat.com/show_bug.cgi?id=1274083

@adellape PTAL at this first draft

[ahardin-rh]

@adellape, any first thoughts?

[adellape]

Add a unique anchor.

[ahardin-rh]

@rjhowe completed my first pass at this. PTAL. Thanks!

[adellape]

Sorry my last comment on this spot got kinda messed up cuz I didn't wrap em in backticks. Basically we need to verify where in this file (e.g., what section/stanza, what parameter name) these should be set.

[rjhowe]

@ahardin-rh we really should show how this will look in the node-config.yaml

Example:

....
kubeletArguments:
  max-pods
    - "40"
  resolv-conf
    - "/etc/resolv.conf"
  image-gc-high-threshold:
    - "90"
  image-gc-low-threshold:
    - "80"
...

Taking this even further we could reference how this would look in the ansible hosts file.

openshift_node_kubelet_args={'max-pods': ['40'], 'resolv-conf': ['/etc/resolv.conf'],  'image-gc-high-threshold': ['90'], 'image-gc-low-threshold': ['80']}

[ahardin-rh]

@rjhowe @adellape Thanks! Made some edits.

[ahardin-rh]

@rjhowe @adellape Good to go?

[adellape]

Mark up the file name.

[adellape]

@ahardin-rh Two minor nits, otherwise LGTM.

[ahardin-rh]

@adellape Fixed. Thanks!

[ahardin-rh]

@rjhowe further edits?

[ahardin-rh]

OLD revhistory note:

(for Admin Guide --> Managing Nodes)

Added the link:../admin_guide/manage_nodes.html#configuring-node-resources[Configuring Node Resources] section.

(for Install/Config --> Advanced Install)

Added `*openshift_node_kubelet_args*` to the link:../install_config/install/advanced_install.html#configuring-ansible[Host Variables table].

[adellape]

This had some follow-up, see #1719 for new revhistory note for the kubelet args piece. For the Admin Guide piece, see next comment.

[adellape]

[rev_history]
|link:../admin_guide/manage_nodes.html[Managing Nodes]

|Added the link:../admin_guide/manage_nodes.html#configuring-node-resources[Configuring Node Resources] section.
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