Joshua M. Boniface
1b6613c280
Sets in the node daemon, returns via the API, and shows in the CLI, information about the live VNC listen address and port for VNC-enabled VMs. Closes #115
1369 lines
47 KiB
Python
1369 lines
47 KiB
Python
#!/usr/bin/env python3
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# vm.py - PVC CLI client function library, VM functions
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# Part of the Parallel Virtual Cluster (PVC) system
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#
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# Copyright (C) 2018-2020 Joshua M. Boniface <joshua@boniface.me>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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###############################################################################
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import time
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import re
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import cli_lib.ansiprint as ansiprint
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from cli_lib.common import call_api, format_bytes, format_metric
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#
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# Primary functions
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#
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def vm_info(config, vm):
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"""
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Get information about (single) VM
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API endpoint: GET /api/v1/vm/{vm}
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API arguments:
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API schema: {json_data_object}
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"""
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response = call_api(config, 'get', '/vm/{vm}'.format(vm=vm))
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if response.status_code == 200:
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if isinstance(response.json(), list) and len(response.json()) != 1:
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# No exact match; return not found
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return False, "VM not found."
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else:
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# Return a single instance if the response is a list
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if isinstance(response.json(), list):
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return True, response.json()[0]
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# This shouldn't happen, but is here just in case
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else:
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return True, response.json()
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else:
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return False, response.json().get('message', '')
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def vm_list(config, limit, target_node, target_state):
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"""
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Get list information about VMs (limited by {limit}, {target_node}, or {target_state})
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API endpoint: GET /api/v1/vm
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API arguments: limit={limit}, node={target_node}, state={target_state}
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API schema: [{json_data_object},{json_data_object},etc.]
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"""
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params = dict()
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if limit:
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params['limit'] = limit
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if target_node:
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params['node'] = target_node
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if target_state:
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params['state'] = target_state
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response = call_api(config, 'get', '/vm', params=params)
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if response.status_code == 200:
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return True, response.json()
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else:
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return False, response.json().get('message', '')
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def vm_define(config, xml, node, node_limit, node_selector, node_autostart, migration_method):
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"""
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Define a new VM on the cluster
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API endpoint: POST /vm
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API arguments: xml={xml}, node={node}, limit={node_limit}, selector={node_selector}, autostart={node_autostart}, migration_method={migration_method}
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API schema: {"message":"{data}"}
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"""
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params = {
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'node': node,
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'limit': node_limit,
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'selector': node_selector,
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'autostart': node_autostart,
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'migration_method': migration_method
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}
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data = {
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'xml': xml
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}
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response = call_api(config, 'post', '/vm', params=params, data=data)
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if response.status_code == 200:
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retstatus = True
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else:
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retstatus = False
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return retstatus, response.json().get('message', '')
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def vm_modify(config, vm, xml, restart):
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"""
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Modify the configuration of VM
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API endpoint: PUT /vm/{vm}
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API arguments: xml={xml}, restart={restart}
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API schema: {"message":"{data}"}
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"""
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params = {
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'restart': restart
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}
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data = {
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'xml': xml
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}
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response = call_api(config, 'put', '/vm/{vm}'.format(vm=vm), params=params, data=data)
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if response.status_code == 200:
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retstatus = True
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else:
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retstatus = False
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return retstatus, response.json().get('message', '')
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def vm_metadata(config, vm, node_limit, node_selector, node_autostart, migration_method, provisioner_profile):
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"""
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Modify PVC metadata of a VM
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API endpoint: GET /vm/{vm}/meta, POST /vm/{vm}/meta
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API arguments: limit={node_limit}, selector={node_selector}, autostart={node_autostart}, migration_method={migration_method} profile={provisioner_profile}
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API schema: {"message":"{data}"}
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"""
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params = dict()
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# Update any params that we've sent
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if node_limit is not None:
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params['limit'] = node_limit
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if node_selector is not None:
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params['selector'] = node_selector
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if node_autostart is not None:
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params['autostart'] = node_autostart
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if migration_method is not None:
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params['migration_method'] = migration_method
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if provisioner_profile is not None:
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params['profile'] = provisioner_profile
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# Write the new metadata
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response = call_api(config, 'post', '/vm/{vm}/meta'.format(vm=vm), params=params)
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if response.status_code == 200:
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retstatus = True
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else:
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retstatus = False
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return retstatus, response.json().get('message', '')
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def vm_remove(config, vm, delete_disks=False):
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"""
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Remove a VM
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API endpoint: DELETE /vm/{vm}
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API arguments: delete_disks={delete_disks}
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API schema: {"message":"{data}"}
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"""
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params = {
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'delete_disks': delete_disks
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}
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response = call_api(config, 'delete', '/vm/{vm}'.format(vm=vm), params=params)
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if response.status_code == 200:
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retstatus = True
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else:
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retstatus = False
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return retstatus, response.json().get('message', '')
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def vm_state(config, vm, target_state, wait=False):
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"""
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Modify the current state of VM
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API endpoint: POST /vm/{vm}/state
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API arguments: state={state}, wait={wait}
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API schema: {"message":"{data}"}
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"""
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params = {
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'state': target_state,
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'wait': str(wait).lower()
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}
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response = call_api(config, 'post', '/vm/{vm}/state'.format(vm=vm), params=params)
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if response.status_code == 200:
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retstatus = True
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else:
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retstatus = False
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return retstatus, response.json().get('message', '')
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def vm_node(config, vm, target_node, action, force=False, wait=False, force_live=False):
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"""
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Modify the current node of VM via {action}
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API endpoint: POST /vm/{vm}/node
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API arguments: node={target_node}, action={action}, force={force}, wait={wait}, force_live={force_live}
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API schema: {"message":"{data}"}
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"""
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params = {
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'node': target_node,
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'action': action,
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'force': str(force).lower(),
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'wait': str(wait).lower(),
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'force_live': str(force_live).lower()
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}
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response = call_api(config, 'post', '/vm/{vm}/node'.format(vm=vm), params=params)
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if response.status_code == 200:
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retstatus = True
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else:
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retstatus = False
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return retstatus, response.json().get('message', '')
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def vm_locks(config, vm):
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"""
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Flush RBD locks of (stopped) VM
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API endpoint: POST /vm/{vm}/locks
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API arguments:
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API schema: {"message":"{data}"}
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"""
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response = call_api(config, 'post', '/vm/{vm}/locks'.format(vm=vm))
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if response.status_code == 200:
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retstatus = True
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else:
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retstatus = False
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return retstatus, response.json().get('message', '')
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def vm_vcpus_set(config, vm, vcpus, topology, restart):
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"""
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Set the vCPU count of the VM with topology
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Calls vm_info to get the VM XML.
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Calls vm_modify to set the VM XML.
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"""
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from lxml.objectify import fromstring
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from lxml.etree import tostring
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status, domain_information = vm_info(config, vm)
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if not status:
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return status, domain_information
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xml = domain_information.get('xml', None)
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if xml is None:
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return False, "VM does not have a valid XML doccument."
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try:
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parsed_xml = fromstring(xml)
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except Exception:
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return False, 'ERROR: Failed to parse XML data.'
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parsed_xml.vcpu._setText(str(vcpus))
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parsed_xml.cpu.topology.set('sockets', str(topology[0]))
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parsed_xml.cpu.topology.set('cores', str(topology[1]))
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parsed_xml.cpu.topology.set('threads', str(topology[2]))
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try:
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new_xml = tostring(parsed_xml, pretty_print=True)
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except Exception:
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return False, 'ERROR: Failed to dump XML data.'
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return vm_modify(config, vm, new_xml, restart)
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def vm_vcpus_get(config, vm):
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"""
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Get the vCPU count of the VM
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Calls vm_info to get VM XML.
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Returns a tuple of (vcpus, (sockets, cores, threads))
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"""
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from lxml.objectify import fromstring
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status, domain_information = vm_info(config, vm)
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if not status:
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return status, domain_information
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xml = domain_information.get('xml', None)
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if xml is None:
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return False, "VM does not have a valid XML doccument."
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try:
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parsed_xml = fromstring(xml)
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except Exception:
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return False, 'ERROR: Failed to parse XML data.'
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vm_vcpus = int(parsed_xml.vcpu.text)
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vm_sockets = parsed_xml.cpu.topology.attrib.get('sockets')
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vm_cores = parsed_xml.cpu.topology.attrib.get('cores')
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vm_threads = parsed_xml.cpu.topology.attrib.get('threads')
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return True, (vm_vcpus, (vm_sockets, vm_cores, vm_threads))
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def format_vm_vcpus(config, name, vcpus):
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"""
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Format the output of a vCPU value in a nice table
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"""
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output_list = []
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name_length = 5
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_name_length = len(name) + 1
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if _name_length > name_length:
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name_length = _name_length
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vcpus_length = 6
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sockets_length = 8
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cores_length = 6
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threads_length = 8
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output_list.append(
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'{bold}{name: <{name_length}} \
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{vcpus: <{vcpus_length}} \
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{sockets: <{sockets_length}} \
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{cores: <{cores_length}} \
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{threads: <{threads_length}}{end_bold}'.format(
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name_length=name_length,
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vcpus_length=vcpus_length,
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sockets_length=sockets_length,
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cores_length=cores_length,
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threads_length=threads_length,
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bold=ansiprint.bold(),
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end_bold=ansiprint.end(),
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name='Name',
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vcpus='vCPUs',
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sockets='Sockets',
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cores='Cores',
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threads='Threads'
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)
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)
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output_list.append(
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'{bold}{name: <{name_length}} \
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{vcpus: <{vcpus_length}} \
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{sockets: <{sockets_length}} \
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{cores: <{cores_length}} \
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{threads: <{threads_length}}{end_bold}'.format(
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name_length=name_length,
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vcpus_length=vcpus_length,
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sockets_length=sockets_length,
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cores_length=cores_length,
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threads_length=threads_length,
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bold='',
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end_bold='',
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name=name,
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vcpus=vcpus[0],
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sockets=vcpus[1][0],
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cores=vcpus[1][1],
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threads=vcpus[1][2]
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)
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)
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return '\n'.join(output_list)
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def vm_memory_set(config, vm, memory, restart):
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"""
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Set the provisioned memory of the VM with topology
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Calls vm_info to get the VM XML.
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Calls vm_modify to set the VM XML.
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"""
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from lxml.objectify import fromstring
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from lxml.etree import tostring
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status, domain_information = vm_info(config, vm)
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if not status:
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return status, domain_information
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xml = domain_information.get('xml', None)
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if xml is None:
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return False, "VM does not have a valid XML doccument."
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try:
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parsed_xml = fromstring(xml)
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except Exception:
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return False, 'ERROR: Failed to parse XML data.'
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parsed_xml.memory._setText(str(memory))
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try:
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new_xml = tostring(parsed_xml, pretty_print=True)
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except Exception:
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return False, 'ERROR: Failed to dump XML data.'
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return vm_modify(config, vm, new_xml, restart)
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def vm_memory_get(config, vm):
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"""
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Get the provisioned memory of the VM
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Calls vm_info to get VM XML.
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Returns an integer memory value.
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"""
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from lxml.objectify import fromstring
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status, domain_information = vm_info(config, vm)
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if not status:
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return status, domain_information
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xml = domain_information.get('xml', None)
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if xml is None:
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return False, "VM does not have a valid XML doccument."
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try:
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parsed_xml = fromstring(xml)
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except Exception:
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return False, 'ERROR: Failed to parse XML data.'
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vm_memory = int(parsed_xml.memory.text)
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return True, vm_memory
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def format_vm_memory(config, name, memory):
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"""
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Format the output of a memory value in a nice table
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"""
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output_list = []
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name_length = 5
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_name_length = len(name) + 1
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if _name_length > name_length:
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name_length = _name_length
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memory_length = 6
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output_list.append(
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'{bold}{name: <{name_length}} \
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{memory: <{memory_length}}{end_bold}'.format(
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name_length=name_length,
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memory_length=memory_length,
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bold=ansiprint.bold(),
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end_bold=ansiprint.end(),
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name='Name',
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memory='RAM (M)'
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)
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)
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output_list.append(
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'{bold}{name: <{name_length}} \
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{memory: <{memory_length}}{end_bold}'.format(
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name_length=name_length,
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memory_length=memory_length,
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bold='',
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end_bold='',
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name=name,
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memory=memory
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)
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)
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return '\n'.join(output_list)
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def vm_networks_add(config, vm, network, macaddr, model, restart):
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"""
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Add a new network to the VM
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Calls vm_info to get the VM XML.
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Calls vm_modify to set the VM XML.
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"""
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from lxml.objectify import fromstring
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from lxml.etree import tostring
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from random import randint
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import cli_lib.network as pvc_network
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# Verify that the provided network is valid
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retcode, retdata = pvc_network.net_info(config, network)
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if not retcode:
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# Ignore the three special networks
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if network not in ['upstream', 'cluster', 'storage']:
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return False, "Network {} is not present in the cluster.".format(network)
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if network in ['upstream', 'cluster', 'storage']:
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br_prefix = 'br'
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else:
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br_prefix = 'vmbr'
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status, domain_information = vm_info(config, vm)
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if not status:
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return status, domain_information
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xml = domain_information.get('xml', None)
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if xml is None:
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return False, "VM does not have a valid XML doccument."
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try:
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parsed_xml = fromstring(xml)
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except Exception:
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return False, 'ERROR: Failed to parse XML data.'
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if macaddr is None:
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mac_prefix = '52:54:00'
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random_octet_A = '{:x}'.format(randint(16, 238))
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random_octet_B = '{:x}'.format(randint(16, 238))
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random_octet_C = '{:x}'.format(randint(16, 238))
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macaddr = '{prefix}:{octetA}:{octetB}:{octetC}'.format(
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prefix=mac_prefix,
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octetA=random_octet_A,
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octetB=random_octet_B,
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octetC=random_octet_C
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)
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device_string = '<interface type="bridge"><mac address="{macaddr}"/><source bridge="{bridge}"/><model type="{model}"/></interface>'.format(
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macaddr=macaddr,
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bridge="{}{}".format(br_prefix, network),
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model=model
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)
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device_xml = fromstring(device_string)
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last_interface = None
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all_interfaces = parsed_xml.devices.find('interface')
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if all_interfaces is None:
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all_interfaces = []
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for interface in all_interfaces:
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last_interface = re.match(r'[vm]*br([0-9a-z]+)', interface.source.attrib.get('bridge')).group(1)
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if last_interface == network:
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|
return False, 'Network {} is already configured for VM {}.'.format(network, vm)
|
|
if last_interface is not None:
|
|
for interface in parsed_xml.devices.find('interface'):
|
|
if last_interface == re.match(r'[vm]*br([0-9a-z]+)', interface.source.attrib.get('bridge')).group(1):
|
|
interface.addnext(device_xml)
|
|
else:
|
|
parsed_xml.devices.find('emulator').addprevious(device_xml)
|
|
|
|
try:
|
|
new_xml = tostring(parsed_xml, pretty_print=True)
|
|
except Exception:
|
|
return False, 'ERROR: Failed to dump XML data.'
|
|
|
|
return vm_modify(config, vm, new_xml, restart)
|
|
|
|
|
|
def vm_networks_remove(config, vm, network, restart):
|
|
"""
|
|
Remove a network to the VM
|
|
|
|
Calls vm_info to get the VM XML.
|
|
|
|
Calls vm_modify to set the VM XML.
|
|
"""
|
|
from lxml.objectify import fromstring
|
|
from lxml.etree import tostring
|
|
|
|
status, domain_information = vm_info(config, vm)
|
|
if not status:
|
|
return status, domain_information
|
|
|
|
xml = domain_information.get('xml', None)
|
|
if xml is None:
|
|
return False, "VM does not have a valid XML doccument."
|
|
|
|
try:
|
|
parsed_xml = fromstring(xml)
|
|
except Exception:
|
|
return False, 'ERROR: Failed to parse XML data.'
|
|
|
|
for interface in parsed_xml.devices.find('interface'):
|
|
if_vni = re.match(r'[vm]*br([0-9a-z]+)', interface.source.attrib.get('bridge')).group(1)
|
|
if network == if_vni:
|
|
interface.getparent().remove(interface)
|
|
|
|
try:
|
|
new_xml = tostring(parsed_xml, pretty_print=True)
|
|
except Exception:
|
|
return False, 'ERROR: Failed to dump XML data.'
|
|
|
|
return vm_modify(config, vm, new_xml, restart)
|
|
|
|
|
|
def vm_networks_get(config, vm):
|
|
"""
|
|
Get the networks of the VM
|
|
|
|
Calls vm_info to get VM XML.
|
|
|
|
Returns a list of tuples of (network_vni, mac_address, model)
|
|
"""
|
|
from lxml.objectify import fromstring
|
|
|
|
status, domain_information = vm_info(config, vm)
|
|
if not status:
|
|
return status, domain_information
|
|
|
|
xml = domain_information.get('xml', None)
|
|
if xml is None:
|
|
return False, "VM does not have a valid XML doccument."
|
|
|
|
try:
|
|
parsed_xml = fromstring(xml)
|
|
except Exception:
|
|
return False, 'ERROR: Failed to parse XML data.'
|
|
|
|
network_data = list()
|
|
for interface in parsed_xml.devices.find('interface'):
|
|
mac_address = interface.mac.attrib.get('address')
|
|
model = interface.model.attrib.get('type')
|
|
network = re.match(r'[vm]*br([0-9a-z]+)', interface.source.attrib.get('bridge')).group(1)
|
|
network_data.append((network, mac_address, model))
|
|
|
|
return True, network_data
|
|
|
|
|
|
def format_vm_networks(config, name, networks):
|
|
"""
|
|
Format the output of a network list in a nice table
|
|
"""
|
|
output_list = []
|
|
|
|
name_length = 5
|
|
vni_length = 8
|
|
macaddr_length = 12
|
|
model_length = 6
|
|
|
|
_name_length = len(name) + 1
|
|
if _name_length > name_length:
|
|
name_length = _name_length
|
|
|
|
for network in networks:
|
|
_vni_length = len(network[0]) + 1
|
|
if _vni_length > vni_length:
|
|
vni_length = _vni_length
|
|
|
|
_macaddr_length = len(network[1]) + 1
|
|
if _macaddr_length > macaddr_length:
|
|
macaddr_length = _macaddr_length
|
|
|
|
_model_length = len(network[2]) + 1
|
|
if _model_length > model_length:
|
|
model_length = _model_length
|
|
|
|
output_list.append(
|
|
'{bold}{name: <{name_length}} \
|
|
{vni: <{vni_length}} \
|
|
{macaddr: <{macaddr_length}} \
|
|
{model: <{model_length}}{end_bold}'.format(
|
|
name_length=name_length,
|
|
vni_length=vni_length,
|
|
macaddr_length=macaddr_length,
|
|
model_length=model_length,
|
|
bold=ansiprint.bold(),
|
|
end_bold=ansiprint.end(),
|
|
name='Name',
|
|
vni='Network',
|
|
macaddr='MAC Address',
|
|
model='Model'
|
|
)
|
|
)
|
|
count = 0
|
|
for network in networks:
|
|
if count > 0:
|
|
name = ''
|
|
count += 1
|
|
output_list.append(
|
|
'{bold}{name: <{name_length}} \
|
|
{vni: <{vni_length}} \
|
|
{macaddr: <{macaddr_length}} \
|
|
{model: <{model_length}}{end_bold}'.format(
|
|
name_length=name_length,
|
|
vni_length=vni_length,
|
|
macaddr_length=macaddr_length,
|
|
model_length=model_length,
|
|
bold='',
|
|
end_bold='',
|
|
name=name,
|
|
vni=network[0],
|
|
macaddr=network[1],
|
|
model=network[2]
|
|
)
|
|
)
|
|
return '\n'.join(output_list)
|
|
|
|
|
|
def vm_volumes_add(config, vm, volume, disk_id, bus, disk_type, restart):
|
|
"""
|
|
Add a new volume to the VM
|
|
|
|
Calls vm_info to get the VM XML.
|
|
|
|
Calls vm_modify to set the VM XML.
|
|
"""
|
|
from lxml.objectify import fromstring
|
|
from lxml.etree import tostring
|
|
from copy import deepcopy
|
|
import cli_lib.ceph as pvc_ceph
|
|
|
|
if disk_type == 'rbd':
|
|
# Verify that the provided volume is valid
|
|
vpool = volume.split('/')[0]
|
|
vname = volume.split('/')[1]
|
|
retcode, retdata = pvc_ceph.ceph_volume_info(config, vpool, vname)
|
|
if not retcode:
|
|
return False, "Volume {} is not present in the cluster.".format(volume)
|
|
|
|
status, domain_information = vm_info(config, vm)
|
|
if not status:
|
|
return status, domain_information
|
|
|
|
xml = domain_information.get('xml', None)
|
|
if xml is None:
|
|
return False, "VM does not have a valid XML doccument."
|
|
|
|
try:
|
|
parsed_xml = fromstring(xml)
|
|
except Exception:
|
|
return False, 'ERROR: Failed to parse XML data.'
|
|
|
|
last_disk = None
|
|
id_list = list()
|
|
all_disks = parsed_xml.devices.find('disk')
|
|
if all_disks is None:
|
|
all_disks = []
|
|
for disk in all_disks:
|
|
id_list.append(disk.target.attrib.get('dev'))
|
|
if disk.source.attrib.get('protocol') == disk_type:
|
|
if disk_type == 'rbd':
|
|
last_disk = disk.source.attrib.get('name')
|
|
elif disk_type == 'file':
|
|
last_disk = disk.source.attrib.get('file')
|
|
if last_disk == volume:
|
|
return False, 'Volume {} is already configured for VM {}.'.format(volume, vm)
|
|
last_disk_details = deepcopy(disk)
|
|
|
|
if disk_id is not None:
|
|
if disk_id in id_list:
|
|
return False, 'Manually specified disk ID {} is already in use for VM {}.'.format(disk_id, vm)
|
|
else:
|
|
# Find the next free disk ID
|
|
first_dev_prefix = id_list[0][0:-1]
|
|
|
|
for char in range(ord('a'), ord('z')):
|
|
char = chr(char)
|
|
next_id = "{}{}".format(first_dev_prefix, char)
|
|
if next_id not in id_list:
|
|
break
|
|
else:
|
|
next_id = None
|
|
if next_id is None:
|
|
return False, 'Failed to find a valid disk_id and none specified; too many disks for VM {}?'.format(vm)
|
|
disk_id = next_id
|
|
|
|
if last_disk is None:
|
|
if disk_type == 'rbd':
|
|
# RBD volumes need an example to be based on
|
|
return False, "There are no existing RBD volumes attached to this VM. Autoconfiguration failed; use the 'vm modify' command to manually configure this volume with the required details for authentication, hosts, etc.."
|
|
elif disk_type == 'file':
|
|
# File types can be added ad-hoc
|
|
disk_template = '<disk type="file" device="disk"><driver name="qemu" type="raw"/><source file="{source}"/><target dev="{dev}" bus="{bus}"/></disk>'.format(
|
|
source=volume,
|
|
dev=disk_id,
|
|
bus=bus
|
|
)
|
|
last_disk_details = fromstring(disk_template)
|
|
|
|
new_disk_details = last_disk_details
|
|
new_disk_details.target.set('dev', disk_id)
|
|
new_disk_details.target.set('bus', bus)
|
|
if disk_type == 'rbd':
|
|
new_disk_details.source.set('name', volume)
|
|
elif disk_type == 'file':
|
|
new_disk_details.source.set('file', volume)
|
|
|
|
all_disks = parsed_xml.devices.find('disk')
|
|
if all_disks is None:
|
|
all_disks = []
|
|
for disk in all_disks:
|
|
last_disk = disk
|
|
|
|
if last_disk is None:
|
|
parsed_xml.devices.find('emulator').addprevious(new_disk_details)
|
|
|
|
try:
|
|
new_xml = tostring(parsed_xml, pretty_print=True)
|
|
except Exception:
|
|
return False, 'ERROR: Failed to dump XML data.'
|
|
|
|
return vm_modify(config, vm, new_xml, restart)
|
|
|
|
|
|
def vm_volumes_remove(config, vm, volume, restart):
|
|
"""
|
|
Remove a volume to the VM
|
|
|
|
Calls vm_info to get the VM XML.
|
|
|
|
Calls vm_modify to set the VM XML.
|
|
"""
|
|
from lxml.objectify import fromstring
|
|
from lxml.etree import tostring
|
|
|
|
status, domain_information = vm_info(config, vm)
|
|
if not status:
|
|
return status, domain_information
|
|
|
|
xml = domain_information.get('xml', None)
|
|
if xml is None:
|
|
return False, "VM does not have a valid XML doccument."
|
|
|
|
try:
|
|
parsed_xml = fromstring(xml)
|
|
except Exception:
|
|
return False, 'ERROR: Failed to parse XML data.'
|
|
|
|
for disk in parsed_xml.devices.find('disk'):
|
|
disk_name = disk.source.attrib.get('name')
|
|
if not disk_name:
|
|
disk_name = disk.source.attrib.get('file')
|
|
if volume == disk_name:
|
|
disk.getparent().remove(disk)
|
|
|
|
try:
|
|
new_xml = tostring(parsed_xml, pretty_print=True)
|
|
except Exception:
|
|
return False, 'ERROR: Failed to dump XML data.'
|
|
|
|
return vm_modify(config, vm, new_xml, restart)
|
|
|
|
|
|
def vm_volumes_get(config, vm):
|
|
"""
|
|
Get the volumes of the VM
|
|
|
|
Calls vm_info to get VM XML.
|
|
|
|
Returns a list of tuples of (volume, disk_id, type, bus)
|
|
"""
|
|
from lxml.objectify import fromstring
|
|
|
|
status, domain_information = vm_info(config, vm)
|
|
if not status:
|
|
return status, domain_information
|
|
|
|
xml = domain_information.get('xml', None)
|
|
if xml is None:
|
|
return False, "VM does not have a valid XML doccument."
|
|
|
|
try:
|
|
parsed_xml = fromstring(xml)
|
|
except Exception:
|
|
return False, 'ERROR: Failed to parse XML data.'
|
|
|
|
volume_data = list()
|
|
for disk in parsed_xml.devices.find('disk'):
|
|
protocol = disk.attrib.get('type')
|
|
disk_id = disk.target.attrib.get('dev')
|
|
bus = disk.target.attrib.get('bus')
|
|
if protocol == 'network':
|
|
protocol = disk.source.attrib.get('protocol')
|
|
source = disk.source.attrib.get('name')
|
|
elif protocol == 'file':
|
|
protocol = 'file'
|
|
source = disk.source.attrib.get('file')
|
|
else:
|
|
protocol = 'unknown'
|
|
source = 'unknown'
|
|
|
|
volume_data.append((source, disk_id, protocol, bus))
|
|
|
|
return True, volume_data
|
|
|
|
|
|
def format_vm_volumes(config, name, volumes):
|
|
"""
|
|
Format the output of a volume value in a nice table
|
|
"""
|
|
output_list = []
|
|
|
|
name_length = 5
|
|
volume_length = 7
|
|
disk_id_length = 4
|
|
protocol_length = 5
|
|
bus_length = 4
|
|
|
|
_name_length = len(name) + 1
|
|
if _name_length > name_length:
|
|
name_length = _name_length
|
|
|
|
for volume in volumes:
|
|
_volume_length = len(volume[0]) + 1
|
|
if _volume_length > volume_length:
|
|
volume_length = _volume_length
|
|
|
|
_disk_id_length = len(volume[1]) + 1
|
|
if _disk_id_length > disk_id_length:
|
|
disk_id_length = _disk_id_length
|
|
|
|
_protocol_length = len(volume[2]) + 1
|
|
if _protocol_length > protocol_length:
|
|
protocol_length = _protocol_length
|
|
|
|
_bus_length = len(volume[3]) + 1
|
|
if _bus_length > bus_length:
|
|
bus_length = _bus_length
|
|
|
|
output_list.append(
|
|
'{bold}{name: <{name_length}} \
|
|
{volume: <{volume_length}} \
|
|
{disk_id: <{disk_id_length}} \
|
|
{protocol: <{protocol_length}} \
|
|
{bus: <{bus_length}}{end_bold}'.format(
|
|
name_length=name_length,
|
|
volume_length=volume_length,
|
|
disk_id_length=disk_id_length,
|
|
protocol_length=protocol_length,
|
|
bus_length=bus_length,
|
|
bold=ansiprint.bold(),
|
|
end_bold=ansiprint.end(),
|
|
name='Name',
|
|
volume='Volume',
|
|
disk_id='Dev',
|
|
protocol='Type',
|
|
bus='Bus'
|
|
)
|
|
)
|
|
count = 0
|
|
for volume in volumes:
|
|
if count > 0:
|
|
name = ''
|
|
count += 1
|
|
output_list.append(
|
|
'{bold}{name: <{name_length}} \
|
|
{volume: <{volume_length}} \
|
|
{disk_id: <{disk_id_length}} \
|
|
{protocol: <{protocol_length}} \
|
|
{bus: <{bus_length}}{end_bold}'.format(
|
|
name_length=name_length,
|
|
volume_length=volume_length,
|
|
disk_id_length=disk_id_length,
|
|
protocol_length=protocol_length,
|
|
bus_length=bus_length,
|
|
bold='',
|
|
end_bold='',
|
|
name=name,
|
|
volume=volume[0],
|
|
disk_id=volume[1],
|
|
protocol=volume[2],
|
|
bus=volume[3]
|
|
)
|
|
)
|
|
return '\n'.join(output_list)
|
|
|
|
|
|
def view_console_log(config, vm, lines=100):
|
|
"""
|
|
Return console log lines from the API (and display them in a pager in the main CLI)
|
|
|
|
API endpoint: GET /vm/{vm}/console
|
|
API arguments: lines={lines}
|
|
API schema: {"name":"{vmname}","data":"{console_log}"}
|
|
"""
|
|
params = {
|
|
'lines': lines
|
|
}
|
|
response = call_api(config, 'get', '/vm/{vm}/console'.format(vm=vm), params=params)
|
|
|
|
if response.status_code != 200:
|
|
return False, response.json().get('message', '')
|
|
|
|
console_log = response.json()['data']
|
|
|
|
# Shrink the log buffer to length lines
|
|
shrunk_log = console_log.split('\n')[-lines:]
|
|
loglines = '\n'.join(shrunk_log)
|
|
|
|
return True, loglines
|
|
|
|
|
|
def follow_console_log(config, vm, lines=10):
|
|
"""
|
|
Return and follow console log lines from the API
|
|
|
|
API endpoint: GET /vm/{vm}/console
|
|
API arguments: lines={lines}
|
|
API schema: {"name":"{vmname}","data":"{console_log}"}
|
|
"""
|
|
params = {
|
|
'lines': lines
|
|
}
|
|
response = call_api(config, 'get', '/vm/{vm}/console'.format(vm=vm), params=params)
|
|
|
|
if response.status_code != 200:
|
|
return False, response.json().get('message', '')
|
|
|
|
# Shrink the log buffer to length lines
|
|
console_log = response.json()['data']
|
|
shrunk_log = console_log.split('\n')[-lines:]
|
|
loglines = '\n'.join(shrunk_log)
|
|
|
|
# Print the initial data and begin following
|
|
print(loglines, end='')
|
|
|
|
while True:
|
|
# Grab the next line set (500 is a reasonable number of lines per second; any more are skipped)
|
|
try:
|
|
params = {
|
|
'lines': 500
|
|
}
|
|
response = call_api(config, 'get', '/vm/{vm}/console'.format(vm=vm), params=params)
|
|
new_console_log = response.json()['data']
|
|
except Exception:
|
|
break
|
|
# Split the new and old log strings into constitutent lines
|
|
old_console_loglines = console_log.split('\n')
|
|
new_console_loglines = new_console_log.split('\n')
|
|
# Set the console log to the new log value for the next iteration
|
|
console_log = new_console_log
|
|
# Remove the lines from the old log until we hit the first line of the new log; this
|
|
# ensures that the old log is a string that we can remove from the new log entirely
|
|
for index, line in enumerate(old_console_loglines, start=0):
|
|
if line == new_console_loglines[0]:
|
|
del old_console_loglines[0:index]
|
|
break
|
|
# Rejoin the log lines into strings
|
|
old_console_log = '\n'.join(old_console_loglines)
|
|
new_console_log = '\n'.join(new_console_loglines)
|
|
# Remove the old lines from the new log
|
|
diff_console_log = new_console_log.replace(old_console_log, "")
|
|
# If there's a difference, print it out
|
|
if diff_console_log:
|
|
print(diff_console_log, end='')
|
|
# Wait a second
|
|
time.sleep(1)
|
|
|
|
return True, ''
|
|
|
|
|
|
#
|
|
# Output display functions
|
|
#
|
|
def format_info(config, domain_information, long_output):
|
|
# Format a nice output; do this line-by-line then concat the elements at the end
|
|
ainformation = []
|
|
ainformation.append('{}Virtual machine information:{}'.format(ansiprint.bold(), ansiprint.end()))
|
|
ainformation.append('')
|
|
# Basic information
|
|
ainformation.append('{}UUID:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['uuid']))
|
|
ainformation.append('{}Name:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['name']))
|
|
ainformation.append('{}Description:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['description']))
|
|
ainformation.append('{}Profile:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['profile']))
|
|
ainformation.append('{}Memory (M):{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['memory']))
|
|
ainformation.append('{}vCPUs:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['vcpu']))
|
|
ainformation.append('{}Topology (S/C/T):{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['vcpu_topology']))
|
|
|
|
if domain_information['vnc'].get('listen', 'None') != 'None' and domain_information['vnc'].get('port', 'None') != 'None':
|
|
ainformation.append('')
|
|
ainformation.append('{}VNC listen:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['vnc']['listen']))
|
|
ainformation.append('{}VNC port:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['vnc']['port']))
|
|
|
|
if long_output is True:
|
|
# Virtualization information
|
|
ainformation.append('')
|
|
ainformation.append('{}Emulator:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['emulator']))
|
|
ainformation.append('{}Type:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['type']))
|
|
ainformation.append('{}Arch:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['arch']))
|
|
ainformation.append('{}Machine:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['machine']))
|
|
ainformation.append('{}Features:{} {}'.format(ansiprint.purple(), ansiprint.end(), ' '.join(domain_information['features'])))
|
|
ainformation.append('')
|
|
ainformation.append('{0}Memory stats:{1} {2}Swap In Swap Out Faults (maj/min) Available Usable Unused RSS{3}'.format(ansiprint.purple(), ansiprint.end(), ansiprint.bold(), ansiprint.end()))
|
|
ainformation.append(' {0: <7} {1: <8} {2: <16} {3: <10} {4: <7} {5: <7} {6: <10}'.format(
|
|
format_metric(domain_information['memory_stats'].get('swap_in', 0)),
|
|
format_metric(domain_information['memory_stats'].get('swap_out', 0)),
|
|
'/'.join([format_metric(domain_information['memory_stats'].get('major_fault', 0)), format_metric(domain_information['memory_stats'].get('minor_fault', 0))]),
|
|
format_bytes(domain_information['memory_stats'].get('available', 0) * 1024),
|
|
format_bytes(domain_information['memory_stats'].get('usable', 0) * 1024),
|
|
format_bytes(domain_information['memory_stats'].get('unused', 0) * 1024),
|
|
format_bytes(domain_information['memory_stats'].get('rss', 0) * 1024)
|
|
))
|
|
ainformation.append('')
|
|
ainformation.append('{0}vCPU stats:{1} {2}CPU time (ns) User time (ns) System time (ns){3}'.format(ansiprint.purple(), ansiprint.end(), ansiprint.bold(), ansiprint.end()))
|
|
ainformation.append(' {0: <16} {1: <16} {2: <15}'.format(
|
|
str(domain_information['vcpu_stats'].get('cpu_time', 0)),
|
|
str(domain_information['vcpu_stats'].get('user_time', 0)),
|
|
str(domain_information['vcpu_stats'].get('system_time', 0))
|
|
))
|
|
|
|
# PVC cluster information
|
|
ainformation.append('')
|
|
dstate_colour = {
|
|
'start': ansiprint.green(),
|
|
'restart': ansiprint.yellow(),
|
|
'shutdown': ansiprint.yellow(),
|
|
'stop': ansiprint.red(),
|
|
'disable': ansiprint.blue(),
|
|
'fail': ansiprint.red(),
|
|
'migrate': ansiprint.blue(),
|
|
'unmigrate': ansiprint.blue(),
|
|
'provision': ansiprint.blue()
|
|
}
|
|
ainformation.append('{}State:{} {}{}{}'.format(ansiprint.purple(), ansiprint.end(), dstate_colour[domain_information['state']], domain_information['state'], ansiprint.end()))
|
|
ainformation.append('{}Current Node:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['node']))
|
|
if not domain_information['last_node']:
|
|
domain_information['last_node'] = "N/A"
|
|
ainformation.append('{}Previous Node:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['last_node']))
|
|
|
|
# Get a failure reason if applicable
|
|
if domain_information['failed_reason']:
|
|
ainformation.append('')
|
|
ainformation.append('{}Failure reason:{} {}'.format(ansiprint.purple(), ansiprint.end(), domain_information['failed_reason']))
|
|
|
|
if not domain_information.get('node_selector'):
|
|
formatted_node_selector = "False"
|
|
else:
|
|
formatted_node_selector = domain_information['node_selector']
|
|
|
|
if not domain_information.get('node_limit'):
|
|
formatted_node_limit = "False"
|
|
else:
|
|
formatted_node_limit = ', '.join(domain_information['node_limit'])
|
|
|
|
if not domain_information.get('node_autostart'):
|
|
formatted_node_autostart = "False"
|
|
else:
|
|
formatted_node_autostart = domain_information['node_autostart']
|
|
|
|
if not domain_information.get('migration_method'):
|
|
formatted_migration_method = "any"
|
|
else:
|
|
formatted_migration_method = domain_information['migration_method']
|
|
|
|
ainformation.append('{}Migration selector:{} {}'.format(ansiprint.purple(), ansiprint.end(), formatted_node_selector))
|
|
ainformation.append('{}Node limit:{} {}'.format(ansiprint.purple(), ansiprint.end(), formatted_node_limit))
|
|
ainformation.append('{}Autostart:{} {}'.format(ansiprint.purple(), ansiprint.end(), formatted_node_autostart))
|
|
ainformation.append('{}Migration Method:{} {}'.format(ansiprint.purple(), ansiprint.end(), formatted_migration_method))
|
|
|
|
# Network list
|
|
net_list = []
|
|
for net in domain_information['networks']:
|
|
# Split out just the numerical (VNI) part of the brXXXX name
|
|
net_vnis = re.findall(r'\d+', net['source'])
|
|
if net_vnis:
|
|
net_vni = net_vnis[0]
|
|
else:
|
|
net_vni = re.sub('br', '', net['source'])
|
|
|
|
response = call_api(config, 'get', '/network/{net}'.format(net=net_vni))
|
|
if response.status_code != 200 and net_vni not in ['cluster', 'storage', 'upstream']:
|
|
net_list.append(ansiprint.red() + net_vni + ansiprint.end() + ' [invalid]')
|
|
else:
|
|
net_list.append(net_vni)
|
|
|
|
ainformation.append('')
|
|
ainformation.append('{}Networks:{} {}'.format(ansiprint.purple(), ansiprint.end(), ', '.join(net_list)))
|
|
|
|
if long_output is True:
|
|
# Disk list
|
|
ainformation.append('')
|
|
name_length = 0
|
|
for disk in domain_information['disks']:
|
|
_name_length = len(disk['name']) + 1
|
|
if _name_length > name_length:
|
|
name_length = _name_length
|
|
ainformation.append('{0}Disks:{1} {2}ID Type {3: <{width}} Dev Bus Requests (r/w) Data (r/w){4}'.format(ansiprint.purple(), ansiprint.end(), ansiprint.bold(), 'Name', ansiprint.end(), width=name_length))
|
|
for disk in domain_information['disks']:
|
|
ainformation.append(' {0: <3} {1: <5} {2: <{width}} {3: <4} {4: <5} {5: <15} {6}'.format(
|
|
domain_information['disks'].index(disk),
|
|
disk['type'],
|
|
disk['name'],
|
|
disk['dev'],
|
|
disk['bus'],
|
|
'/'.join([str(format_metric(disk.get('rd_req', 0))), str(format_metric(disk.get('wr_req', 0)))]),
|
|
'/'.join([str(format_bytes(disk.get('rd_bytes', 0))), str(format_bytes(disk.get('wr_bytes', 0)))]),
|
|
width=name_length
|
|
))
|
|
ainformation.append('')
|
|
ainformation.append('{}Interfaces:{} {}ID Type Source Model MAC Data (r/w) Packets (r/w) Errors (r/w){}'.format(ansiprint.purple(), ansiprint.end(), ansiprint.bold(), ansiprint.end()))
|
|
for net in domain_information['networks']:
|
|
ainformation.append(' {0: <3} {1: <7} {2: <10} {3: <8} {4: <18} {5: <12} {6: <15} {7: <12}'.format(
|
|
domain_information['networks'].index(net),
|
|
net['type'],
|
|
net['source'],
|
|
net['model'],
|
|
net['mac'],
|
|
'/'.join([str(format_bytes(net.get('rd_bytes', 0))), str(format_bytes(net.get('wr_bytes', 0)))]),
|
|
'/'.join([str(format_metric(net.get('rd_packets', 0))), str(format_metric(net.get('wr_packets', 0)))]),
|
|
'/'.join([str(format_metric(net.get('rd_errors', 0))), str(format_metric(net.get('wr_errors', 0)))]),
|
|
))
|
|
# Controller list
|
|
ainformation.append('')
|
|
ainformation.append('{}Controllers:{} {}ID Type Model{}'.format(ansiprint.purple(), ansiprint.end(), ansiprint.bold(), ansiprint.end()))
|
|
for controller in domain_information['controllers']:
|
|
ainformation.append(' {0: <3} {1: <14} {2: <8}'.format(domain_information['controllers'].index(controller), controller['type'], str(controller['model'])))
|
|
|
|
# Join it all together
|
|
ainformation.append('')
|
|
return '\n'.join(ainformation)
|
|
|
|
|
|
def format_list(config, vm_list, raw):
|
|
# Function to strip the "br" off of nets and return a nicer list
|
|
def getNiceNetID(domain_information):
|
|
# Network list
|
|
net_list = []
|
|
for net in domain_information['networks']:
|
|
# Split out just the numerical (VNI) part of the brXXXX name
|
|
net_vnis = re.findall(r'\d+', net['source'])
|
|
if net_vnis:
|
|
net_vni = net_vnis[0]
|
|
else:
|
|
net_vni = re.sub('br', '', net['source'])
|
|
net_list.append(net_vni)
|
|
return net_list
|
|
|
|
# Handle raw mode since it just lists the names
|
|
if raw:
|
|
ainformation = list()
|
|
for vm in sorted(item['name'] for item in vm_list):
|
|
ainformation.append(vm)
|
|
return '\n'.join(ainformation)
|
|
|
|
vm_list_output = []
|
|
|
|
# Determine optimal column widths
|
|
# Dynamic columns: node_name, node, migrated
|
|
vm_name_length = 5
|
|
vm_uuid_length = 37
|
|
vm_state_length = 6
|
|
vm_nets_length = 9
|
|
vm_ram_length = 8
|
|
vm_vcpu_length = 6
|
|
vm_node_length = 8
|
|
vm_migrated_length = 10
|
|
for domain_information in vm_list:
|
|
net_list = getNiceNetID(domain_information)
|
|
# vm_name column
|
|
_vm_name_length = len(domain_information['name']) + 1
|
|
if _vm_name_length > vm_name_length:
|
|
vm_name_length = _vm_name_length
|
|
# vm_state column
|
|
_vm_state_length = len(domain_information['state']) + 1
|
|
if _vm_state_length > vm_state_length:
|
|
vm_state_length = _vm_state_length
|
|
# vm_nets column
|
|
_vm_nets_length = len(','.join(net_list)) + 1
|
|
if _vm_nets_length > vm_nets_length:
|
|
vm_nets_length = _vm_nets_length
|
|
# vm_node column
|
|
_vm_node_length = len(domain_information['node']) + 1
|
|
if _vm_node_length > vm_node_length:
|
|
vm_node_length = _vm_node_length
|
|
# vm_migrated column
|
|
_vm_migrated_length = len(domain_information['migrated']) + 1
|
|
if _vm_migrated_length > vm_migrated_length:
|
|
vm_migrated_length = _vm_migrated_length
|
|
|
|
# Format the string (header)
|
|
vm_list_output.append(
|
|
'{bold}{vm_name: <{vm_name_length}} {vm_uuid: <{vm_uuid_length}} \
|
|
{vm_state_colour}{vm_state: <{vm_state_length}}{end_colour} \
|
|
{vm_networks: <{vm_nets_length}} \
|
|
{vm_memory: <{vm_ram_length}} {vm_vcpu: <{vm_vcpu_length}} \
|
|
{vm_node: <{vm_node_length}} \
|
|
{vm_migrated: <{vm_migrated_length}}{end_bold}'.format(
|
|
vm_name_length=vm_name_length,
|
|
vm_uuid_length=vm_uuid_length,
|
|
vm_state_length=vm_state_length,
|
|
vm_nets_length=vm_nets_length,
|
|
vm_ram_length=vm_ram_length,
|
|
vm_vcpu_length=vm_vcpu_length,
|
|
vm_node_length=vm_node_length,
|
|
vm_migrated_length=vm_migrated_length,
|
|
bold=ansiprint.bold(),
|
|
end_bold=ansiprint.end(),
|
|
vm_state_colour='',
|
|
end_colour='',
|
|
vm_name='Name',
|
|
vm_uuid='UUID',
|
|
vm_state='State',
|
|
vm_networks='Networks',
|
|
vm_memory='RAM (M)',
|
|
vm_vcpu='vCPUs',
|
|
vm_node='Node',
|
|
vm_migrated='Migrated'
|
|
)
|
|
)
|
|
|
|
# Keep track of nets we found to be valid to cut down on duplicate API hits
|
|
valid_net_list = []
|
|
# Format the string (elements)
|
|
for domain_information in vm_list:
|
|
if domain_information['state'] == 'start':
|
|
vm_state_colour = ansiprint.green()
|
|
elif domain_information['state'] == 'restart':
|
|
vm_state_colour = ansiprint.yellow()
|
|
elif domain_information['state'] == 'shutdown':
|
|
vm_state_colour = ansiprint.yellow()
|
|
elif domain_information['state'] == 'stop':
|
|
vm_state_colour = ansiprint.red()
|
|
elif domain_information['state'] == 'fail':
|
|
vm_state_colour = ansiprint.red()
|
|
else:
|
|
vm_state_colour = ansiprint.blue()
|
|
|
|
# Handle colouring for an invalid network config
|
|
raw_net_list = getNiceNetID(domain_information)
|
|
net_list = []
|
|
vm_net_colour = ''
|
|
for net_vni in raw_net_list:
|
|
if net_vni not in valid_net_list:
|
|
response = call_api(config, 'get', '/network/{net}'.format(net=net_vni))
|
|
if response.status_code != 200 and net_vni not in ['cluster', 'storage', 'upstream']:
|
|
vm_net_colour = ansiprint.red()
|
|
else:
|
|
valid_net_list.append(net_vni)
|
|
|
|
net_list.append(net_vni)
|
|
|
|
vm_list_output.append(
|
|
'{bold}{vm_name: <{vm_name_length}} {vm_uuid: <{vm_uuid_length}} \
|
|
{vm_state_colour}{vm_state: <{vm_state_length}}{end_colour} \
|
|
{vm_net_colour}{vm_networks: <{vm_nets_length}}{end_colour} \
|
|
{vm_memory: <{vm_ram_length}} {vm_vcpu: <{vm_vcpu_length}} \
|
|
{vm_node: <{vm_node_length}} \
|
|
{vm_migrated: <{vm_migrated_length}}{end_bold}'.format(
|
|
vm_name_length=vm_name_length,
|
|
vm_uuid_length=vm_uuid_length,
|
|
vm_state_length=vm_state_length,
|
|
vm_nets_length=vm_nets_length,
|
|
vm_ram_length=vm_ram_length,
|
|
vm_vcpu_length=vm_vcpu_length,
|
|
vm_node_length=vm_node_length,
|
|
vm_migrated_length=vm_migrated_length,
|
|
bold='',
|
|
end_bold='',
|
|
vm_state_colour=vm_state_colour,
|
|
end_colour=ansiprint.end(),
|
|
vm_name=domain_information['name'],
|
|
vm_uuid=domain_information['uuid'],
|
|
vm_state=domain_information['state'],
|
|
vm_net_colour=vm_net_colour,
|
|
vm_networks=','.join(net_list),
|
|
vm_memory=domain_information['memory'],
|
|
vm_vcpu=domain_information['vcpu'],
|
|
vm_node=domain_information['node'],
|
|
vm_migrated=domain_information['migrated']
|
|
)
|
|
)
|
|
|
|
return '\n'.join(sorted(vm_list_output))
|