OpenStack Resources Cleanup

KloudBuster may exit with resources lingering in the cloud under test when there are uncaught exceptions or when the configuration file explicitly disables any resource cleanup upon exit (this option can be useful for debugging for example).

KloudBuster provides a time saving force_cleanup python script to cleanup resources created by a previous KlousBuster run. This script can also be used to cleanup OpenStack resources with a name matching a given regular expression.

Resources in a given selection set are deleted along with their dependencies in the correct order. For example to delete a router you need to delete first all the interfaces before you can delete the router. To delete a volume you need to first detach the volume (if attached) before it can be deleted. Furthermore, some resource deletions require dependent resources to be actually deleted first (which can tale more or less time) before they can succeed. A volume detach command for example can take time and if you do not want long enough the volume deletion will fail.

The script takes care of all these dependencies and timing considerations.

The current version of the script can delete the following resources with a name that matches a given regular expression:

  • Storage
    • volumes (detach and delete)
  • Compute
    • instances
    • flavors
    • key pairs
  • Network
    • security groups
    • floating IPs
    • routers (including all associated interfaces)
    • networks
  • Keystone:
    • users
    • tenants

In some cases, because of timing reasons, you may have to run the force_cleanup script a few times to get rid of all selected resources.

How to Select Resources to Delete

Resource list (–file <pathname>)

KloudBuster generates a cleanup log file when it exits without deleting all resources. This file is a text file with 1 row per resource, where each row has the following format>:

<resource type>|<resource name>|<uuid>

Example of cleanup log file:


If such file is provided to the cleanup script using the –file option, only the resources described in the file will be deleted.

Discovery with Resource name filter (–filter <regex>)

If no cleanup log file is provided, resources are discovered from OpenStack and selected using a regular expression on the resource name (–filter <regex>). You can specify any valid python regular expression to select the resource by name.

If you do not specify a cleanup log file nor a filter, the script will discover all resources with a name starting with “KB” which is the prefix for all KloudBuster resources.

Some examples (refer to the python regex documentation for a detailed description of regular expressions):

Regular expression (default) any OpenStack resource with a name starting with “KB
ext$ any OpenStack resource with a name starting ending with “ext”
.*net any resource with a name containing “net” in any position
glance|neutron any resource with a name starting with “glance” or “neutron”


You can of course also specify ‘.*’ to list all resources but you probably do not want to delete all of them!

Credentials (RC) file (–rc <pathname>)

Specify the openrc file (downloaded from the Horizon API Access page) to provide the credentials to access OpenStack. Alternatively you can also source that file from the shell before invoking the script.

Dry Run (–dryrun)

The script also provides a dry run mode, meaning that you can just check what the script would do without actually deleting anything.

Installation and Dependencies

The script is available in the OpenStack KloudBuster repository under kloudbuster/ If you need to run the script outside of the usual KloudBuster installation, the script requires the usual OpenStack python client libraries and (from the kloudbuster module). Otherwise, pick one of the kloudbuster installation method to install the script (the KloudBuster docker container looks to be the simplest).

Known Issues and Limitations

Volumes attached to instances that are no longer present cannot be deleted thorugh Nova or Cinder APIs. Such volumes will show up as attached to “None” and in the “in-use” or “available” state from the Horizon dashboard. In this case, the script will print a warning with the volume ID:

WARNING: Volume 6080fdce-f894-4c41-9bc0-70120e8560a8 attached to an instance that no longer exists  (will require manual cleanup of the database)

Cleanup of such volumes will require first setting the attach_status of the corresponding volume to “detached” in the Cinder database directly. You have to SSH to the controller host, and login to the MySQL shell:

[root@gg34-2 ~]# mysql cinder
MariaDB [cinder]> UPDATE volumes SET attach_status='detached' WHERE id='18ed7f10-be49-4569-9e04-2fc4a654efee';

Then re-run the script (or manually delete the volume from Horizon).


KloudBuster resources cleanup:

$ python -r
Please enter your OpenStack Password:
Discovering Storage resources...
Discovering Compute resources...
Discovering Network resources...
Discovering Keystone resources...

| Type       | Name               | UUID                                 |
| volumes    | KBc-T0-U-R0-N0-V34 | 8a7746b1-5c31-4db8-b80e-58baeb21b2e9 |
| volumes    | KBc-T0-U-R0-N0-V36 | b1f007e6-e46f-4b25-beca-8418f8680377 |
| volumes    | KBc-T0-U-R0-N0-V4  | 5168c8fb-2124-4c00-9365-0767551a1861 |
| volumes    | KBc-T0-U-R0-N0-V3  | d02dd62b-cd12-4e75-8356-cf41f3d3bc86 |
| volumes    | KBc-T0-U-R0-N0-V7  | 32f50b20-3d8c-46f8-8e0e-1e642fe52a67 |
| volumes    | KBc-T0-U-R0-N0-V5  | 4ee5710f-8cb6-454d-8661-ac5daa0dec35 |
| volumes    | KBc-T0-U-R0-N0-V31 | 5eae2777-6680-4d63-907f-9b9280bdab36 |
| volumes    | KBc-T0-U-R0-N0-V17 | cd44d985-468c-4d15-a26a-3205966f56bf |
| volumes    | KBc-T0-U-R0-N0-V29 | 20cfd301-6f24-4727-a2e6-ec4c7979f24a |
| volumes    | KBc-T0-U-R0-N0-V9  | ab7a09cd-4176-4119-89bb-44f22e42ac57 |
| volumes    | KBc-T0-U-R0-N0-V1  | 467c6203-b30a-460d-9654-79e3798814ad |
| volumes    | KBc-T0-U-R0-N0-V13 | 9b8c1697-a691-4ca8-b8aa-0ba5126f4330 |
| volumes    | KBc-T0-U-R0-N0-V20 | 2fae40bd-b7f8-4ad0-8b49-28199cc20219 |
| volumes    | KBc-T0-U-R0-N0-V33 | 29949338-9fb0-4a6f-8df5-65a97cfc5b5c |
| volumes    | KBc-T0-U-R0-N0-V10 | 562a7f29-e0d4-479d-a916-deb7b062d826 |
| volumes    | KBc-T0-U-R0-N0-V35 | 9643b353-ac1b-4088-940d-babdfed8239a |
| volumes    | KBc-T0-U-R0-N0-V25 | 1d605aed-ad92-469a-a3ae-d8763793b764 |
| volumes    | KBc-T0-U-R0-N0-V22 | 895ba475-debb-4b06-9372-dabebfd26b1c |
| volumes    | KBc-T0-U-R0-N0-V6  | f0c3659a-b9ef-4b15-a015-35fc845a8509 |
| volumes    | KBc-T0-U-R0-N0-V37 | df749f20-f2a9-4d8e-b1c5-667c3c64bf15 |
| volumes    | KBc-T0-U-R0-N0-V32 | 5cca56d7-9543-470e-a964-1f6a314ee3a7 |
| volumes    | KBc-T0-U-R0-N0-V0  | eb4e82d7-131e-417a-9bbb-0aedbd3c2263 |
| volumes    | KBc-T0-U-R0-N0-V38 | 65737d70-c41d-4a3d-853e-ae4c9ecae44d |
| volumes    | KBc-T0-U-R0-N0-V23 | 04c5bcdb-49b5-4006-9479-1f15b530cfcc |
| volumes    | KBc-T0-U-R0-N0-V11 | 181c2dc4-56fd-4f42-ab5d-5e9f9b8a3be5 |
| volumes    | KBc-T0-U-R0-N0-V18 | 6f78f429-6603-4dba-9fa0-cbc601c170a1 |
| volumes    | KBc-T0-U-R0-N0-V39 | b9878b28-9a34-43b0-a5ea-46f7598b23f7 |
| volumes    | KBc-T0-U-R0-N0-V19 | 1a2ef52a-a990-4cb8-974e-2e7bfde07e64 |
| volumes    | KBc-T0-U-R0-N0-V12 | 78761313-89d0-47df-b8a6-6d6baac5a48d |
| volumes    | KBc-T0-U-R0-N0-V8  | 712c06bb-75a1-4d3b-8e7e-1d1845e2636e |
| volumes    | KBc-T0-U-R0-N0-V30 | baaffd6c-ed0c-41c8-9f81-a59e8cef8318 |
| volumes    | KBc-T0-U-R0-N0-V21 | 4ef6e3fd-e102-45f2-b69f-cc28049667b4 |
| volumes    | KBc-T0-U-R0-N0-V28 | 728edd5d-df01-4eae-8811-1e8e0c1357d6 |
| volumes    | KBc-T0-U-R0-N0-V14 | 33fe1128-a4da-4d68-b3fe-e160856c2b46 |
| volumes    | KBc-T0-U-R0-N0-V15 | 7fac9831-2ade-487f-9c79-126b5981df5a |
| volumes    | KBc-T0-U-R0-N0-V26 | 801f95d4-1100-4bbd-9ec1-5fbe925b70d5 |
| volumes    | KBc-T0-U-R0-N0-V27 | 61802296-9201-4d7a-aeda-62f2ad8b2de2 |
| volumes    | KBc-T0-U-R0-N0-V24 | 9fab9127-a496-41ad-b8ab-7bdc83d0df7e |
| volumes    | KBc-T0-U-R0-N0-V2  | ed95d6c3-497e-4e5f-99b1-8f9c5bd82a54 |
| volumes    | KBc-T0-U-R0-N0-V16 | 7083ac1d-1383-4a6f-b95c-cc11c5fe4eda |
| sec_groups | KBc-T0-U-R0-N0-SG0 | b324ce05-384a-40e5-95f9-4e7e9dccb9d8 |
| routers    | KBc-T0-U-R0        | 143a6fc6-5558-41c9-90cf-a08c4d26d37e |
| networks   | KBc-T0-U-R0-N0     | d300fe6d-260b-4a99-99bc-a6a187c0fbc3 |
| tenants    | KBc-T0             | 5d344c4be893420d9d94c7434143b09d     |
| users      | KBc-T0-U           | d26097b180c64e34b80bfa4e73418267     |

Warning: You didn't specify a resource list file as the input. The script will delete all resources shown above.
Are you sure? (y/n) y
*** STORAGE cleanup
    + VOLUME KBc-T0-U-R0-N0-V34 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V36 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V4 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V3 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V7 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V5 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V31 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V17 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V29 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V9 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V1 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V13 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V20 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V33 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V10 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V35 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V25 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V22 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V6 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V37 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V32 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V0 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V38 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V23 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V11 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V18 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V39 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V19 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V12 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V8 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V30 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V21 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V28 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V14 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V15 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V26 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V27 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V24 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V2 is successfully deleted
    + VOLUME KBc-T0-U-R0-N0-V16 is successfully deleted
*** COMPUTE cleanup
*** NETWORK cleanup
    + SECURITY GROUP KBc-T0-U-R0-N0-SG0 is successfully deleted
    + Router Gateway KBc-T0-U-R0 is successfully deleted
    + Router Interface is successfully deleted
    + ROUTER KBc-T0-U-R0 is successfully deleted
    + NETWORK KBc-T0-U-R0-N0 is successfully deleted
*** KEYSTONE cleanup
    + USER KBc-T0-U is successfully deleted
    + TENANT KBc-T0 is successfully deleted

Delete all resources with a name starting with “HA”:

$ python -r --filter 'HA'
Discovering Storage resources...
Discovering Compute resources...
Discovering Network resources...
Discovering Keystone resources...

| Type     | Name                                               | UUID                                 |
| networks | HA network tenant b4d72c4ec4254c789ee11700e3f6d7a4 | ed2912db-4a56-4673-828c-c825e9f8d7ac |
| networks | HA network tenant 890190a4482448d197606d663702efc2 | 32ee3483-8aee-4a97-a2d2-62ac7e521c67 |
| networks | HA network tenant 0550a6a1045a40a1aa9cf3b92731ef00 | 586cc6e2-eec8-4927-8100-993027b6c925 |
| networks | HA network tenant 3c0a953100964440ac1bc8c1611ce96e | fa3ff23e-7a62-458d-911f-299f938685a0 |
| networks | HA network tenant 74a1ec7f4155403cbb482ea6be857295 | 09cee2bc-a2b7-4680-a6f0-542881f0fcd2 |
| networks | HA network tenant 45f2158c9fd2496ab68c51ef69d0cb80 | df6e0506-9ede-4df9-adc1-11f3046a94c6 |
| networks | HA network tenant 19dec7d3b39c48ef85b9d5e2500361f5 | 227c1e27-b117-43d6-9f0e-e1bd11993c05 |
| networks | HA network tenant 5d344c4be893420d9d94c7434143b09d | c3c2eebb-95b0-4a0c-b700-5591b4992ce1 |

Warning: You didn't specify a resource list file as the input. The script will delete all resources shown above.
Are you sure? (y/n) y
*** STORAGE cleanup
*** COMPUTE cleanup
*** NETWORK cleanup
    + NETWORK HA network tenant b4d72c4ec4254c789ee11700e3f6d7a4 is successfully deleted
    + NETWORK HA network tenant 890190a4482448d197606d663702efc2 is successfully deleted
    + NETWORK HA network tenant 0550a6a1045a40a1aa9cf3b92731ef00 is successfully deleted
    + NETWORK HA network tenant 3c0a953100964440ac1bc8c1611ce96e is successfully deleted
    + NETWORK HA network tenant 74a1ec7f4155403cbb482ea6be857295 is successfully deleted
    + NETWORK HA network tenant 45f2158c9fd2496ab68c51ef69d0cb80 is successfully deleted
    + NETWORK HA network tenant 19dec7d3b39c48ef85b9d5e2500361f5 is successfully deleted
    + NETWORK HA network tenant 5d344c4be893420d9d94c7434143b09d is successfully deleted
*** KEYSTONE cleanup

Dry run mode, regular expression, environment variable credentials, find all resources with a name ending with “ext”:

$ python --dryrun --filter '.*ext$'
Discovering Storage resources...
Discovering Compute resources...
Discovering Network resources...
Discovering Keystone resources...


| Type     | Name        | UUID                                 |
| networks | storm-b-ext | a9e91d24-bb21-4321-a0d5-3408d15b25b4 |

*** STORAGE cleanup
*** COMPUTE cleanup
*** NETWORK cleanup
    + NETWORK storm-b-ext should be deleted (but is not deleted: dry run)
*** KEYSTONE cleanup