Create machineconfig for m5d

[hongkailiu]

Ref [1] and [2].

[1]. https://docs.google.com/document/d/1G5Bw2J1vz8ff6n3Z6LCQmpReC3tHYTvMrUF9YgCClH4/edit#

[2]. https://github.com/cgwalters/playground/blob/d72d980b66cc2cb84e658140e5a7406691457aad/ignition/rhcos-raid-containers.json

Will remove _ prefix of the folder after review

[alvaroaleman]

@hongkailiu can you just try out if it works by manually applying (and figure out first how to make the resulting nodes tainted so no test workloads end up on it)?

[hongkailiu]

@hongkailiu can you just try out if it works by manually applying (and figure out first how to make the resulting nodes tainted so no test workloads end up on it)?

I will go through the review before i apply to it.
No idea what the effect will be.

[cgwalters]

(and figure out first how to make the resulting nodes tainted so no test workloads end up on it)?

If the Ignition config fails, the nodes won't join the cluster at all. (But, I guess it's possible to have the config silently do the wrong thing, so it is worth doing with a machineset of size 1 indeed)

[stevekuznetsov]

/lgtm

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