OpenStack: Re-enable glance image import

[mandre]

We've seen on a few clouds that glance image import is enabled but configured improperly, leading the installer to block on image import.

When trying to create glance image via import, the image gets stuck in the uploading status and doesn't move to importing and then active as it should.

$ glance import-info
+----------------+----------------------------------------------------------------------------------+
| Property       | Value                                                                            |
+----------------+----------------------------------------------------------------------------------+
| import-methods | {"type": "array", "description": "Import methods available.", "value": ["glance- |
|                | direct", "web-download"]}                                                        |
+----------------+----------------------------------------------------------------------------------+

$ glance image-create-via-import --container-format=bare --disk-format=qcow2 --file /home/centos/rhcos.qcow2 --name rhcos-imported

$ openstack image show rhcos-imported
+------------------+------------------------------------------------------------------+
| Field            | Value                                                            |
+------------------+------------------------------------------------------------------+
| checksum         | None                                                             |
| container_format | bare                                                             |
| created_at       | 2020-04-02T08:00:56Z                                             |
| disk_format      | qcow2                                                            |
| file             | /v2/images/8307a69e-650b-41e8-a622-1969a2f9d95e/file             |
| id               | 8307a69e-650b-41e8-a622-1969a2f9d95e                             |
| min_disk         | 0                                                                |
| min_ram          | 0                                                                |
| name             | rhcos-imported                                                   |
| owner            | ef5bc5a705ee4a33acf95fbd6ca10d8f                                 |
| properties       | locations='[]', os_hash_algo=, os_hash_value=, os_hidden='False' |
| protected        | False                                                            |
| schema           | /v2/schemas/image                                                |
| size             | None                                                             |
| status           | uploading                                                        |
| tags             |                                                                  |
| updated_at       | 2020-04-02T08:00:56Z                                             |
| virtual_size     | None                                                             |
| visibility       | shared                                                           |
+------------------+------------------------------------------------------------------+

Everything seems to point to a misconfiguration of glance. This wouldn't work for example if glance was running behind httpd, or could also be an issue with multiple stores.

However, since we had multiple report of such issue, we decided to switch back to the usual image upload until we're able to detect if the cloud really supports glance direct image import: #3394

This issue tracks re-enabling glance image import.

References

• [OpenStack] installer is stuck on "Image import started." okd-project/okd#122

[mandre]

/label platform/openstack

[openshift-bot]

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/lifecycle stale

[mandre]

/lifecycle frozen

[EmilienM]

I randomly came across this one and I confirm that if Glance API is not configured with "glance-direct" in enabled_import_methods, the Glance API will reject the request and the image will be queued forever.
Indeed this is not a feature that all clouds offer for various reasons (security mainly?) so at this point it's safe to not rely on it.

[clnperez]

Do we not know what is misconfigured, iow, a way to reliable check? The summary sounds like the presence of glance-direct isn't a guarantee this will work. The last comment has me a bit confused.