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# This file is part of Glances. |
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# SPDX-FileCopyrightText: 2024 Nicolas Hennion <[email protected]> |
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# |
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# SPDX-License-Identifier: LGPL-3.0-only |
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# |
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"""Multipass Extension unit for Glances' Vms plugin.""" |
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import json |
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import os |
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from typing import Any, Dict, List, Tuple |
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from glances.globals import json_loads, nativestr |
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from glances.secure import secure_popen |
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# Check if multipass binary exist |
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# TODO: make this path configurable from the Glances configuration file |
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MULTIPASS_PATH = '/snap/bin/multipass' |
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MULTIPASS_VERSION_OPTIONS = 'version --format json' |
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MULTIPASS_INFO_OPTIONS = 'info --format json' |
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import_multipass_error_tag = not os.path.exists(MULTIPASS_PATH) |
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class VmExtension: |
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"""Glances' Vms Plugin's Vm Extension unit""" |
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CONTAINER_ACTIVE_STATUS = ['running'] |
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def __init__(self): |
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self.ext_name = "Multipass (Vm)" |
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def update_version(self): |
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# > multipass version --format json |
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# { |
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# "multipass": "1.13.1", |
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# "multipassd": "1.13.1" |
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# } |
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ret_cmd = secure_popen(f'{MULTIPASS_PATH} {MULTIPASS_VERSION_OPTIONS}') |
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try: |
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ret = json_loads(ret_cmd) |
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except json.JSONDecodeError: |
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return {} |
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else: |
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return ret.get('multipass', None) |
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def update_info(self): |
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# > multipass info --format json |
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# { |
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# "errors": [ |
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# ], |
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# "info": { |
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# "adapted-budgerigar": { |
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# "cpu_count": "1", |
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# "disks": { |
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# "sda1": { |
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# "total": "5116440064", |
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# "used": "2287162880" |
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# } |
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# }, |
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# "image_hash": "182dc760bfca26c45fb4e4668049ecd4d0ecdd6171b3bae81d0135e8f1e9d93e", |
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# "image_release": "24.04 LTS", |
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# "ipv4": [ |
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# "10.160.166.174" |
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# ], |
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# "load": [ |
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# 0, |
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# 0.03, |
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# 0 |
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# ], |
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# "memory": { |
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# "total": 1002500096, |
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# "used": 432058368 |
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# }, |
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# "mounts": { |
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# }, |
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# "release": "Ubuntu 24.04 LTS", |
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# "snapshot_count": "0", |
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# "state": "Running" |
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# } |
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# } |
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# } |
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ret_cmd = secure_popen(f'{MULTIPASS_PATH} {MULTIPASS_INFO_OPTIONS}') |
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try: |
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ret = json_loads(ret_cmd) |
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except json.JSONDecodeError: |
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return {} |
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else: |
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return ret.get('info', {}) |
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def update(self, all_tag) -> Tuple[Dict, List[Dict]]: |
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"""Update Vm stats using the input method.""" |
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# Can not run multipass on this system then... |
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if import_multipass_error_tag: |
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return {}, [] |
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# Get the stats from the system |
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version_stats = self.update_version() |
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info_stats = self.update_info() |
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returned_stats = [] |
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for k, v in info_stats.items(): |
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# Only display when VM in on 'running' states |
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# See states list here: https://multipass.run/docs/instance-states |
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if all_tag or self._want_display(v, 'state', ['Running', 'Starting', 'Restarting']): |
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returned_stats.append(self.generate_stats(k, v)) |
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return version_stats, returned_stats |
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@property |
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def key(self) -> str: |
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"""Return the key of the list.""" |
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return 'name' |
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def _want_display(self, vm_stats, key, values): |
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return vm_stats.get(key).lower() in [v.lower() for v in values] |
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def generate_stats(self, vm_name, vm_stats) -> Dict[str, Any]: |
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# Init the stats for the current vm |
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return { |
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'key': self.key, |
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'name': nativestr(vm_name), |
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'id': vm_stats.get('image_hash'), |
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'status': vm_stats.get('state').lower() if vm_stats.get('state') else None, |
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'release': vm_stats.get('release') if len(vm_stats.get('release')) > 0 else vm_stats.get('image_release'), |
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'cpu_count': int(vm_stats.get('cpu_count', 1)) if len(vm_stats.get('cpu_count', 1)) > 0 else None, |
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'memory_usage': vm_stats.get('memory').get('used') if vm_stats.get('memory') else None, |
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'memory_total': vm_stats.get('memory').get('total') if vm_stats.get('memory') else None, |
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'load_1min': vm_stats.get('load')[0] if vm_stats.get('load') else None, |
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'load_5min': vm_stats.get('load')[1] if vm_stats.get('load') else None, |
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'load_15min': vm_stats.get('load')[2] if vm_stats.get('load') else None, |
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'ipv4': vm_stats.get('ipv4')[0] if len(vm_stats.get('ipv4')) > 0 else None, |
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# TODO: disk |
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} |
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nicolargo /
glances
