Version:

$ openshift-install version
./openshift-install 4.5.14
built from commit 9893a482f310ee72089872f1a4caea3dbec34f28
release image quay.io/openshift-release-dev/ocp-release@sha256:95cfe9273aecb9a0070176210477491c347f8e69e41759063642edf8bb8aceb6

Platform:
Openstack

What happened?


Our customer's Openstack doesn't support qcow2 image formats. Instead we convert the rchos image to raw format and follow https://github.com/openshift/installer/blob/master/docs/user/openstack/customization.md#image-overrides documentation to manually specify the image location.

However the installer still tries to do the qcow2 check and gets the following error:


time="2020-10-15T13:04:07+02:00" level=fatal msg="failed to fetch Terraform Variables: failed to generate asset \"Terraform Variables\": failed to get openstack Terraform variables: Bad request with: [POST https://image.cloud.muni.cz/v2/images], error message: {\"message\": \"Provided object does not match schema 'image': 'qcow2' is not one of [None, 'raw']\\n\\nFailed validating 'enum' in schema['properties']['disk_format']:\\n    {'description': 'Format of the disk',\\n     'enum': [None, 'raw'],\\n     'type': ['null', 'string']}\\n\\nOn instance['disk_format']:\\n    'qcow2'<br /><br />\\n\\n\\n\", \"code\": \"400 Bad Request\", \"title\": \"Bad Request\"}"


our config:

apiVersion: v1
baseDomain: vega.io
compute:
- architecture: amd64
  hyperthreading: Enabled
  name: worker
  platform: {}
  replicas: 3
controlPlane:
  architecture: amd64
  hyperthreading: Enabled
  name: master
  platform: {}
  replicas: 3
metadata:
  creationTimestamp: null
  name: vega-cluster
networking:
  clusterNetwork:
  - cidr: 10.128.0.0/14
    hostPrefix: 23
  machineNetwork:
  - cidr: 10.0.0.0/16
  networkType: OpenShiftSDN
  serviceNetwork:
  - 172.30.0.0/16
platform:
  openstack:
    clusterOSImage: file:///var/tmp/img.raw
    apiVIP: 10.0.0.5
    cloud: openstack
    computeFlavor: standard.large
    externalDNS: null
    externalNetwork: public-cesnet-78-128-250-PERSONAL
    ingressVIP: 10.0.0.7
    lbFloatingIP: 78.128.250.207
    octaviaSupport: "1"
    region: ""
    trunkSupport: "1"
publish: External
pullSecret: '{"auths":{"......
sshKey: |
  ssh-rsa ......