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  1. OpenShift Bugs
  2. OCPBUGS-3326

[4.9] Backport of "unknown instance type" error for supported m6i.xlarge instance

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    Description

      This BUG tracks a backport of Bugzilla 2040376 (https://bugzilla.redhat.com/show_bug.cgi?id=2040376) to release 4.9. 

      Description of problem:

      Original bug description:
      AWS instance m6i.xlarge is supported [1], but it does not appear on ec2_instance_types.go [2] and the following errors show up when it is used (hidden information marked with "XXX"):
      
      $ oc logs -l k8s-app=controller -n openshift-machine-api -c machine-controller
      [...]
      I0112 14:51:10.117191       1 controller.go:59] controllers/MachineSet "msg"="Reconciling" "machineset"="XXX" "namespace"="openshift-machine-api"
      E0112 14:51:10.117604       1 controller.go:115] Unable to set scale from zero annotations: unknown instance type: %sm6i.xlarge
      E0112 14:51:10.117622       1 controller.go:116] Autoscaling from zero will not work. To fix this, manually populate machine annotations for your instance type: %v[machine.openshift.io/vCPU machine.openshift.io/memoryMb machine.openshift.io/GPU]
      I0112 14:51:10.117792       1 recorder.go:104] controller-runtime/manager/events "msg"="Warning"  "message"="Failed to set autoscaling from zero annotations, instance type unknown" "object"={"kind":"MachineSet","namespace":"openshift-machine-api","name":"XXX","uid":"XXX","apiVersion":"machine.openshift.io/v1beta1","resourceVersion":"121131434"} "reason"="FailedUpdate"
      

      Version-Release number of selected component (if applicable):

      4.9

      How reproducible:

      Always

      Steps to Reproduce:

      Steps to Reproduce:
      1. Create a MachineSet with m6i.xlarge instances.
      2. Check the logs of machine-controller container.
      3. 

      Actual results:

      Error messages show up, although no impact on the cluster.
      

      Expected results:

      No error messages because it is a supported instance.
      

      Additional info:

      [1] https://docs.openshift.com/container-platform/4.9/installing/installing_aws/installing-aws-customizations.html#installation-supported-aws-machine-types_installing-aws-customizations
      [2] https://github.com/openshift-cherrypick-robot/cluster-api-provider-aws/blob/2f3f7442ef525c7eaa2177d1903cebf219a2c3fc/pkg/actuators/machineset/ec2_instance_types.go
      

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                ddonati@redhat.com Damiano Donati
                ddonati@redhat.com Damiano Donati
                Huali Liu Huali Liu
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                  Updated:
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