faa5b33fef
The awk expression that was in use prior to this change was fragile and in some cases could incorrectly identify the unmounted block devices. This change switches to parsing the json output which should hopefully be more robust. Change-Id: Ifa89e7307eb445b4f1708f0c6ac3409b3f96aafe Story: 2010367 Task: 46578
74 lines
1.4 KiB
Python
74 lines
1.4 KiB
Python
#!/usr/bin/python3
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DOCUMENTATION = '''
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---
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module: blockdevice_info
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short_description: Returns information about block devices
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version_added: "N/A"
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description:
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- "Returns information about block devices"
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author:
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- Will Szumski
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'''
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EXAMPLES = '''
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- name: Retrieve information about block devices
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blockdevice_info:
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become: true
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register: result
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'''
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RETURN = '''
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umounted:
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description: A list of all umounted block devices.
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type: list
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returned: always
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'''
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import json
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from ansible.module_utils.basic import AnsibleModule
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def _has_mounts(device):
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if device["mountpoint"]:
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return True
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for child in device.get("children", []):
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if _has_mounts(child):
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return True
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return False
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def unmounted(module, lsblk):
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result = []
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for device in lsblk.get("blockdevices", []):
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if not _has_mounts(device) and device["type"] == 'disk':
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result.append(device["name"])
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return result
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def run_module():
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# The module takes no argumnets.
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module_args = dict()
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result = dict(
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changed=False,
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unmounted=[]
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)
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module = AnsibleModule(
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argument_spec=module_args,
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supports_check_mode=True
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)
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_rc, stdout, _stderr = module.run_command("lsblk -J")
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lsblk = json.loads(stdout)
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result['unmounted'] = unmounted(module, lsblk)
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module.exit_json(**result)
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def main():
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run_module()
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if __name__ == '__main__':
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main() |