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Bug
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Resolution: Unresolved
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Normal
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None
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4.20
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Quality / Stability / Reliability
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False
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None
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None
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None
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Description of problem:
Specify zones failed with platform.defaultMachinePlatform when controlPlane/compute.platform is configured
e.g.
In install-config.yaml, controlPlane/compute.platform is configured as:
controlPlane:
platform:
vsphere:
cpus: 4
coresPerSocket: 4
memoryMB: 16384
compute:
platform:
vsphere:
cpus: 4
coresPerSocket: 4
memoryMB: 16384
And specify zone in platform.defaultMachinePlatform as:
defaultMachinePlatform:
zones:
- us-east-1a
Install cluster, check node zones, all nodes should be landed in us-east-1a but not.
NAMESPACE NAME PHASE TYPE REGION ZONE AGE NODE PROVIDERID STATE
openshift-machine-api ci-op-r1trngwb-5c1e3-hbnrv-master-0 Running us-east us-east-1a 47m ci-op-r1trngwb-5c1e3-hbnrv-master-0 vsphere://4210e866-5a7d-bc02-5ae0-1a6373f75edb poweredOn
openshift-machine-api ci-op-r1trngwb-5c1e3-hbnrv-master-1 Running us-west us-west-2a 47m ci-op-r1trngwb-5c1e3-hbnrv-master-1 vsphere://4210b978-65b9-201f-eb82-a0bf67033632 poweredOn
openshift-machine-api ci-op-r1trngwb-5c1e3-hbnrv-master-2 Running us-west us-west-1a 47m ci-op-r1trngwb-5c1e3-hbnrv-master-2 vsphere://42104a6c-c8e4-d4c1-9a22-304fcb2321cc poweredOn
openshift-machine-api ci-op-r1trngwb-5c1e3-hbnrv-worker-0-tbszz Running us-east us-east-1a 43m ci-op-r1trngwb-5c1e3-hbnrv-worker-0-tbszz vsphere://42102731-25bb-e0e8-05c2-fd9a9f78ffb4 poweredOn
openshift-machine-api ci-op-r1trngwb-5c1e3-hbnrv-worker-1-zzqcf Running us-west us-west-2a 43m ci-op-r1trngwb-5c1e3-hbnrv-worker-1-zzqcf vsphere://4210d098-b387-8a4d-9ba4-d4d61cb3667c poweredOn
openshift-machine-api ci-op-r1trngwb-5c1e3-hbnrv-worker-2-pr5vb Running us-west us-west-1a 43m ci-op-r1trngwb-5c1e3-hbnrv-worker-2-pr5vb vsphere://421046f1-9d72-4cfc-d410-d676adff0a79 poweredOn
Manual install confirmed that if controlPlane/compute.platform is blank (see bellow), specify zone in platform.defaultMachinePlatform works as expected.
compute:
platform: {}
controlPlane:
platform: {}
Version-Release number of selected component (if applicable):
4.20.0-0.nightly-2025-09-19-231410
How reproducible:
always
Steps to Reproduce:
1. Create install config with above install config
2. Install cluster and check node zones
3.
Actual results:
Specify zones failed with platform.defaultMachinePlatform
Expected results:
All node should be in zones specified
Additional info: