Bug 1706134: Allowing scale up past 3 nodes for ES Cr

[ewolinetz]

Alternative fix vs #168

Ref: https://bugzilla.redhat.com/show_bug.cgi?id=1706134

[ewolinetz]

/hold

[josefkarasek]

/lgtm

[josefkarasek]

Looking good, @ewolinetz.

For future plans @lukas-vlcek and I have tried to come up with possible topologies based on number of nodes:

1 - 3: n CDM
4 - 9: 3 CDM + (n - 3) CD
10 and more: 3 M + 3 C + (n - 6) D

n = nodeCount

Topologies with n > 9 would have 3 client-only nodes, which should make the whole cluster more stable than clusters of size between 4 and 9 nodes, but such clusters would have decreased data capacity by having 3 extra (client) nodes, which can't store data.

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[jcantrill]

Please remove the role names from the artifacts as this will affect migrating to topolgies > 3

[ewolinetz]

@jcantrill i need to make those changes in EO, i'll open a pr to address that as part of this fix

[ewolinetz]

/hold cancel

[ewolinetz]

/retest