It is possible to assign more disk space to filesystems than physical disk has

[Richard Berwald]

Using the fuel api it is possible to upload a disk configuration that gets used by Fuel but leads to a misconfiguration.
The resulting configuration has allocated more disk space to the filesystems than physically available on the disk.

Configuration:

Uploaded via API:
[
    {
        "name": "vda",
        "size": 101708,
        "id": "disk/by-path/pci-0000: 00: 06.0-virtio-pci-virtio3",
        "volumes": [
            {
                "size": 101708,
                "name": "os",
                "keep_data": "False"
            }
        ],
        "extra": []
    }
]

Resulting disk configuration:
- extra: []
  id: disk/by-path/pci-0000:00:06.0-virtio-pci-virtio3
  name: vda
  size: 101708
  volumes:
  - keep_data: false
    name: logs
    size: 10240
  - keep_data: false
    name: mysql
    size: 20480
  - keep_data: false
    name: os
    size: 101708

See attached screenshot for disk configuration of node.

The expected behaviour would be that Fuel will give an error.

[root@fuel-70 ~]# fuel fuel-version
api: '1.0'
astute_sha: 6c5b73f93e24cc781c809db9159927655ced5012
auth_required: true
build_id: '301'
build_number: '301'
feature_groups:
- experimental
- mirantis
fuel-agent_sha: 50e90af6e3d560e9085ff71d2950cfbcca91af67
fuel-library_sha: 5d50055aeca1dd0dc53b43825dc4c8f7780be9dd
fuel-nailgun-agent_sha: d7027952870a35db8dc52f185bb1158cdd3d1ebd
fuel-ostf_sha: 2cd967dccd66cfc3a0abd6af9f31e5b4d150a11c
fuelmain_sha: a65d453215edb0284a2e4761be7a156bb5627677
nailgun_sha: 4162b0c15adb425b37608c787944d1983f543aa8
openstack_version: 2015.1.0-7.0
production: docker
python-fuelclient_sha: 486bde57cda1badb68f915f66c61b544108606f3
release: '7.0'
release_versions:
  2015.1.0-7.0:
    VERSION:
      api: '1.0'
      astute_sha: 6c5b73f93e24cc781c809db9159927655ced5012
      build_id: '301'
      build_number: '301'
      feature_groups:
      - experimental
      - mirantis
      fuel-agent_sha: 50e90af6e3d560e9085ff71d2950cfbcca91af67
      fuel-library_sha: 5d50055aeca1dd0dc53b43825dc4c8f7780be9dd
      fuel-nailgun-agent_sha: d7027952870a35db8dc52f185bb1158cdd3d1ebd
      fuel-ostf_sha: 2cd967dccd66cfc3a0abd6af9f31e5b4d150a11c
      fuelmain_sha: a65d453215edb0284a2e4761be7a156bb5627677
      nailgun_sha: 4162b0c15adb425b37608c787944d1983f543aa8
      openstack_version: 2015.1.0-7.0
      production: docker
      python-fuelclient_sha: 486bde57cda1badb68f915f66c61b544108606f3
      release: '7.0'

[Alexander Kislitsky (akislitsky)]

We passed SCF in 8.0. Moving the bug to 9.0.

[Bug Checker Bot (bug-checker)]

(This check performed automatically)
Please, make sure that bug description contains the following sections filled in with the appropriate data related to the bug you are describing:

actual result

steps to reproduce

For more detailed information on the contents of each of the listed sections see https://wiki.openstack.org/wiki/Fuel/How_to_contribute#Here_is_how_you_file_a_bug

[Dmitry Guryanov (dguryanov)]

Hi, Richard. I've tried to reproduce this problem and it seems it has already been solved. Now api returns error

{'errors': [],
 'message': "Not enough free space on disk: {u'id': u'sda', u'extra': [u'disk/by-id/ata-VBOX_HARDDISK_VBOX-MIRANTIS-VHD0'], u'name': u'sda', u'volumes': [{u'keep_data': False, u'name': u'os', u'size': 60971}, {u'keep_data': False, u'name': u'os2', u'size': 10000}], u'size': 64971}"}

[Dmitry Guryanov (dguryanov)]

Could you, please, check if it works in your environment?

[Dmitry Pyzhov (dpyzhov)]

Bug is incomplete status for a month. Changing status to invalid. Please reopen the issue if you have more data.