361 lines
16 KiB
Python
361 lines
16 KiB
Python
#!/usr/bin/env python3
|
|
|
|
# vm.py - PVC CLI client function library, VM fuctions
|
|
# Part of the Parallel Virtual Cluster (PVC) system
|
|
#
|
|
# Copyright (C) 2018-2019 Joshua M. Boniface <joshua@boniface.me>
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
#
|
|
###############################################################################
|
|
|
|
import difflib
|
|
import colorama
|
|
import click
|
|
|
|
from collections import deque
|
|
|
|
import client_lib.ansiprint as ansiprint
|
|
import client_lib.zkhandler as zkhandler
|
|
import client_lib.common as common
|
|
|
|
import client_lib.ceph as ceph
|
|
|
|
def get_console_log(zk_conn, domain, lines=1000):
|
|
# Validate that VM exists in cluster
|
|
dom_uuid = getDomainUUID(zk_conn, domain)
|
|
if not dom_uuid:
|
|
return False, 'ERROR: Could not find VM "{}" in the cluster!'.format(domain)
|
|
|
|
# Get the data from ZK
|
|
console_log = zkhandler.readdata(zk_conn, '/domains/{}/consolelog'.format(dom_uuid))
|
|
|
|
# Shrink the log buffer to length lines
|
|
shrunk_log = console_log.split('\n')[-lines:]
|
|
loglines = '\n'.join(shrunk_log)
|
|
|
|
# Show it in the pager (less)
|
|
try:
|
|
pager = subprocess.Popen(['less', '-R'], stdin=subprocess.PIPE)
|
|
pager.communicate(input=loglines.encode('utf8'))
|
|
except FileNotFoundError:
|
|
return False, 'ERROR: The "less" pager is required to view console logs.'
|
|
|
|
return True, ''
|
|
|
|
def follow_console_log(zk_conn, domain, lines=10):
|
|
# Validate that VM exists in cluster
|
|
dom_uuid = getDomainUUID(zk_conn, domain)
|
|
if not dom_uuid:
|
|
return False, 'ERROR: Could not find VM "{}" in the cluster!'.format(domain)
|
|
|
|
# Get the initial data from ZK
|
|
console_log = zkhandler.readdata(zk_conn, '/domains/{}/consolelog'.format(dom_uuid))
|
|
|
|
# Shrink the log buffer to length lines
|
|
shrunk_log = console_log.split('\n')[-lines:]
|
|
loglines = '\n'.join(shrunk_log)
|
|
|
|
# Print the initial data and begin following
|
|
print(loglines, end='')
|
|
|
|
try:
|
|
while True:
|
|
# Grab the next line set
|
|
new_console_log = zkhandler.readdata(zk_conn, '/domains/{}/consolelog'.format(dom_uuid))
|
|
# 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)
|
|
except kazoo.exceptions.NoNodeError:
|
|
return False, 'ERROR: VM has gone away.'
|
|
except:
|
|
return False, 'ERROR: Lost connection to Zookeeper node.'
|
|
|
|
return True, ''
|
|
|
|
def format_info(zk_conn, 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 long_output == 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'])))
|
|
|
|
# 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()
|
|
}
|
|
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['node_selector']:
|
|
formatted_node_selector = "False"
|
|
else:
|
|
formatted_node_selector = domain_information['node_selector']
|
|
|
|
if not domain_information['node_limit']:
|
|
formatted_node_limit = "False"
|
|
else:
|
|
formatted_node_limit = ', '.join(domain_information['node_limit'])
|
|
|
|
if not domain_information['node_autostart']:
|
|
formatted_node_autostart = "False"
|
|
else:
|
|
formatted_node_autostart = domain_information['node_autostart']
|
|
|
|
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))
|
|
|
|
# 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_exists = zkhandler.exists(zk_conn, '/networks/{}'.format(net_vni))
|
|
if not net_exists and net_vni != 'cluster':
|
|
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 == 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{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}'.format(domain_information['disks'].index(disk), disk['type'], disk['name'], disk['dev'], disk['bus'], width=name_length))
|
|
ainformation.append('')
|
|
ainformation.append('{}Interfaces:{} {}ID Type Source Model MAC{}'.format(ansiprint.purple(), ansiprint.end(), ansiprint.bold(), ansiprint.end()))
|
|
for net in domain_information['networks']:
|
|
ainformation.append(' {0: <3} {1: <8} {2: <10} {3: <8} {4}'.format(domain_information['networks'].index(net), net['type'], net['source'], net['model'], net['mac']))
|
|
# 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'], controller['model']))
|
|
|
|
# Join it all together
|
|
information = '\n'.join(ainformation)
|
|
click.echo(information)
|
|
|
|
click.echo('')
|
|
|
|
def format_list(zk_conn, 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:
|
|
for vm in sorted(item['name'] for item in vm_list):
|
|
click.echo(vm)
|
|
return True, ''
|
|
|
|
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'
|
|
)
|
|
)
|
|
|
|
# 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:
|
|
net_exists = zkhandler.exists(zk_conn, '/networks/{}'.format(net_vni))
|
|
if not net_exists and net_vni != 'cluster':
|
|
vm_net_colour = ansiprint.red()
|
|
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']
|
|
)
|
|
)
|
|
|
|
click.echo('\n'.join(sorted(vm_list_output)))
|
|
|
|
return True, ''
|
|
|