Add FFU multi-rhel support #900
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stuggi
reviewed
Sep 8, 2023
Adds tripleoRoleOverride param to config generator to allow a different t-h-t
role to be applied to a subset of hosts in heat.
Heat indices are shuffled around to compensate but the actual hostnames remain
unchanged.
For example:
tripleoRoleOverride:
Compute:
roleName: ComputeRhel8
hostIndexMap:
1: true
3: true
ComputeFoo:
roleName: ComputeFooRhel8
hostIndexMap:
0: true
1: false
2: false
3: false
4: false
5: true
compute-0 remains the same in heat
compute-1 becomes computerhel8-0 in heat (still compute-1 in hostnamemap)
compute-2 becomes compute-1 in heat (still compute-2 in hostnamemap)
compute-3 becomes computerhel8-1 (still compute-3 in hostnamemap)
compute-4 becomes compute-2 in heat (still compute-4 in hostnamemap)
Then, as per a regular director-driven deployment, the role params for
the new role can be used to override the contain images etc... just for
that role to use the rhel8 config.
hostIndexMap entries default to false if not set, but can be set explicitly
e.g to keep track of which hosts have already been migrated to rhel9
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: olliewalsh, stuggi The full list of commands accepted by this bot can be found here. The pull request process is described here
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openshift-merge-robot
merged commit 6d0ead7
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/cherry-pick v1.3.x |
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@stuggi: new pull request created: #913 In response to this:
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Adds tripleoRoleOverride param to config generator to allow a different t-h-t role to be applied to a subset of hosts in heat.
Heat indices are shuffled around to compensate but the actual hostnames remain unchanged.
For example:
compute-0 remains the same in heat
compute-1 becomes computerhel8-0 in heat (still compute-1 in hostnamemap)
compute-2 becomes compute-1 in heat (still compute-2 in hostnamemap)
compute-3 becomes computerhel8-1 (still compute-3 in hostnamemap)
compute-4 becomes compute-2 in heat (still compute-4 in hostnamemap)
Then, as per a regular director-driven deployment, the role params for the new role can be used to override the contain images etc... just for that role to use the rhel8 config.
hostIndexMap entries default to false if not set, but can be set explicitly e.g to keep track of which hosts have already been migrated to rhel9