pvc/api-daemon/pvcapid/helper.py

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#!/usr/bin/env python3
# helper.py - PVC HTTP API helper functions
# Part of the Parallel Virtual Cluster (PVC) system
#
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# Copyright (C) 2018-2020 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 flask
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import lxml.etree as etree
from distutils.util import strtobool as dustrtobool
from werkzeug.formparser import parse_form_data
import daemon_lib.common as pvc_common
import daemon_lib.cluster as pvc_cluster
import daemon_lib.node as pvc_node
import daemon_lib.vm as pvc_vm
import daemon_lib.network as pvc_network
import daemon_lib.ceph as pvc_ceph
config = None # Set in this namespace by flaskapi
def strtobool(stringv):
if stringv is None:
return False
if isinstance(stringv, bool):
return bool(stringv)
try:
return bool(dustrtobool(stringv))
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except Exception:
return False
#
# Initialization function
#
def initialize_cluster():
# Open a Zookeeper connection
zk_conn = pvc_common.startZKConnection(config['coordinators'])
# Abort if we've initialized the cluster before
if zk_conn.exists('/primary_node'):
return False
# Create the root keys
transaction = zk_conn.transaction()
transaction.create('/primary_node', 'none'.encode('ascii'))
transaction.create('/upstream_ip', 'none'.encode('ascii'))
transaction.create('/maintenance', 'False'.encode('ascii'))
transaction.create('/nodes', ''.encode('ascii'))
transaction.create('/domains', ''.encode('ascii'))
transaction.create('/networks', ''.encode('ascii'))
transaction.create('/ceph', ''.encode('ascii'))
transaction.create('/ceph/osds', ''.encode('ascii'))
transaction.create('/ceph/pools', ''.encode('ascii'))
transaction.create('/ceph/volumes', ''.encode('ascii'))
transaction.create('/ceph/snapshots', ''.encode('ascii'))
transaction.create('/cmd', ''.encode('ascii'))
transaction.create('/cmd/domains', ''.encode('ascii'))
transaction.create('/cmd/ceph', ''.encode('ascii'))
transaction.create('/locks', ''.encode('ascii'))
transaction.create('/locks/flush_lock', ''.encode('ascii'))
transaction.create('/locks/primary_node', ''.encode('ascii'))
transaction.commit()
# Close the Zookeeper connection
pvc_common.stopZKConnection(zk_conn)
return True
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#
# Cluster functions
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#
def cluster_status():
"""
Get the overall status of the PVC cluster
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_cluster.get_info(zk_conn)
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pvc_common.stopZKConnection(zk_conn)
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return retdata, 200
def cluster_maintenance(maint_state='false'):
"""
Set the cluster in or out of maintenance state
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_cluster.set_maintenance(zk_conn, maint_state)
pvc_common.stopZKConnection(zk_conn)
retdata = {
'message': retdata
}
if retflag:
retcode = 200
else:
retcode = 400
return retdata, retcode
#
# Node functions
#
def node_list(limit=None, daemon_state=None, coordinator_state=None, domain_state=None, is_fuzzy=True):
"""
Return a list of nodes with limit LIMIT.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_node.get_list(zk_conn, limit, daemon_state=daemon_state, coordinator_state=coordinator_state, domain_state=domain_state, is_fuzzy=is_fuzzy)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {
'message': 'Node not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
# If this is a single element, strip it out of the list
if isinstance(retdata, list) and len(retdata) == 1:
retdata = retdata[0]
return retdata, retcode
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def node_daemon_state(node):
"""
Return the daemon state of node NODE.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_node.get_list(zk_conn, node, is_fuzzy=False)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
if retdata:
retcode = 200
retdata = {
'name': node,
'daemon_state': retdata[0]['daemon_state']
}
else:
retcode = 404
retdata = {
'message': 'Node not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
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return retdata, retcode
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def node_coordinator_state(node):
"""
Return the coordinator state of node NODE.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_node.get_list(zk_conn, node, is_fuzzy=False)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
if retdata:
retcode = 200
retdata = {
'name': node,
'coordinator_state': retdata[0]['coordinator_state']
}
else:
retcode = 404
retdata = {
'message': 'Node not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
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return retdata, retcode
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def node_domain_state(node):
"""
Return the domain state of node NODE.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_node.get_list(zk_conn, node, is_fuzzy=False)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
if retdata:
retcode = 200
retdata = {
'name': node,
'domain_state': retdata[0]['domain_state']
}
else:
retcode = 404
retdata = {
'message': 'Node not found.'
}
else:
retcode = 400
return retdata, retcode
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def node_secondary(node):
"""
Take NODE out of primary router mode.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_node.secondary_node(zk_conn, node)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
retcode = 200
else:
retcode = 400
output = {
'message': retdata.replace('\"', '\'')
}
return output, retcode
def node_primary(node):
"""
Set NODE to primary router mode.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_node.primary_node(zk_conn, node)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
retcode = 200
else:
retcode = 400
output = {
'message': retdata.replace('\"', '\'')
}
return output, retcode
def node_flush(node, wait):
"""
Flush NODE of running VMs.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_node.flush_node(zk_conn, node, wait)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
retcode = 200
else:
retcode = 400
output = {
'message': retdata.replace('\"', '\'')
}
return output, retcode
def node_ready(node, wait):
"""
Restore NODE to active service.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_node.ready_node(zk_conn, node, wait)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
retcode = 200
else:
retcode = 400
output = {
'message': retdata.replace('\"', '\'')
}
return output, retcode
#
# VM functions
#
def vm_is_migrated(vm):
"""
Determine if a VM is migrated or not
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retdata = pvc_vm.is_migrated(zk_conn, vm)
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pvc_common.stopZKConnection(zk_conn)
return retdata
def vm_state(vm):
"""
Return the state of virtual machine VM.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.get_list(zk_conn, None, None, vm, is_fuzzy=False)
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pvc_common.stopZKConnection(zk_conn)
# If this is a single element, strip it out of the list
if isinstance(retdata, list) and len(retdata) == 1:
retdata = retdata[0]
if retflag:
if retdata:
retcode = 200
retdata = {
'name': vm,
'state': retdata['state']
}
else:
retcode = 404
retdata = {
'message': 'VM not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
return retdata, retcode
def vm_node(vm):
"""
Return the current node of virtual machine VM.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.get_list(zk_conn, None, None, vm, is_fuzzy=False)
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pvc_common.stopZKConnection(zk_conn)
# If this is a single element, strip it out of the list
if isinstance(retdata, list) and len(retdata) == 1:
retdata = retdata[0]
if retflag:
if retdata:
retcode = 200
retdata = {
'name': vm,
'node': retdata['node'],
'last_node': retdata['last_node']
}
else:
retcode = 404
retdata = {
'message': 'VM not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
return retdata, retcode
def vm_console(vm, lines=None):
"""
Return the current console log for VM.
"""
# Default to 10 lines of log if not set
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try:
lines = int(lines)
except TypeError:
lines = 10
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.get_console_log(zk_conn, vm, lines)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
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retcode = 200
retdata = {
'name': vm,
'data': retdata
}
else:
retcode = 400
retdata = {
'message': retdata
}
return retdata, retcode
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def vm_list(node=None, state=None, limit=None, is_fuzzy=True):
"""
Return a list of VMs with limit LIMIT.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
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retflag, retdata = pvc_vm.get_list(zk_conn, node, state, limit, is_fuzzy)
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pvc_common.stopZKConnection(zk_conn)
# If this is a single element, strip it out of the list
if isinstance(retdata, list) and len(retdata) == 1:
retdata = retdata[0]
if retflag:
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if retdata:
retcode = 200
else:
retcode = 404
retdata = {
'message': 'VM not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
return retdata, retcode
def vm_define(xml, node, limit, selector, autostart, migration_method):
"""
Define a VM from Libvirt XML in the PVC cluster.
"""
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# Verify our XML is sensible
try:
xml_data = etree.fromstring(xml)
new_cfg = etree.tostring(xml_data, pretty_print=True).decode('utf8')
except Exception as e:
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return {'message': 'XML is malformed or incorrect: {}'.format(e)}, 400
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.define_vm(zk_conn, new_cfg, node, limit, selector, autostart, migration_method, profile=None)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
def get_vm_meta(vm):
"""
Get metadata of a VM.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.get_list(zk_conn, None, None, vm, is_fuzzy=False)
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pvc_common.stopZKConnection(zk_conn)
# If this is a single element, strip it out of the list
if isinstance(retdata, list) and len(retdata) == 1:
retdata = retdata[0]
if retflag:
if retdata:
retcode = 200
retdata = {
'name': vm,
'node_limit': retdata['node_limit'],
'node_selector': retdata['node_selector'],
'node_autostart': retdata['node_autostart'],
'migration_method': retdata['migration_method']
}
else:
retcode = 404
retdata = {
'message': 'VM not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
return retdata, retcode
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def update_vm_meta(vm, limit, selector, autostart, provisioner_profile, migration_method):
"""
Update metadata of a VM.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
if autostart is not None:
try:
autostart = bool(strtobool(autostart))
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except Exception:
autostart = False
retflag, retdata = pvc_vm.modify_vm_metadata(zk_conn, vm, limit, selector, autostart, provisioner_profile, migration_method)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
retcode = 200
else:
retcode = 400
output = {
'message': retdata.replace('\"', '\'')
}
return output, retcode
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def vm_modify(name, restart, xml):
"""
Modify a VM Libvirt XML in the PVC cluster.
"""
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# Verify our XML is sensible
try:
xml_data = etree.fromstring(xml)
new_cfg = etree.tostring(xml_data, pretty_print=True).decode('utf8')
except Exception as e:
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return {'message': 'XML is malformed or incorrect: {}'.format(e)}, 400
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
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retflag, retdata = pvc_vm.modify_vm(zk_conn, name, restart, new_cfg)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def vm_undefine(name):
"""
Undefine a VM from the PVC cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.undefine_vm(zk_conn, name)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def vm_remove(name):
"""
Remove a VM from the PVC cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.remove_vm(zk_conn, name)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def vm_start(name):
"""
Start a VM in the PVC cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.start_vm(zk_conn, name)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def vm_restart(name, wait):
"""
Restart a VM in the PVC cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.restart_vm(zk_conn, name, wait)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
def vm_shutdown(name, wait):
"""
Shutdown a VM in the PVC cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.shutdown_vm(zk_conn, name, wait)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def vm_stop(name):
"""
Forcibly stop a VM in the PVC cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.stop_vm(zk_conn, name)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def vm_disable(name):
"""
Disable a (stopped) VM in the PVC cluster.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.disable_vm(zk_conn, name)
pvc_common.stopZKConnection(zk_conn)
if retflag:
retcode = 200
else:
retcode = 400
output = {
'message': retdata.replace('\"', '\'')
}
return output, retcode
def vm_move(name, node, wait, force_live):
"""
Move a VM to another node.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.move_vm(zk_conn, name, node, wait, force_live)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def vm_migrate(name, node, flag_force, wait, force_live):
"""
Temporarily migrate a VM to another node.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.migrate_vm(zk_conn, name, node, flag_force, wait, force_live)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def vm_unmigrate(name, wait, force_live):
"""
Unmigrate a migrated VM.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.unmigrate_vm(zk_conn, name, wait, force_live)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
def vm_flush_locks(vm):
"""
Flush locks of a (stopped) VM.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.get_list(zk_conn, None, None, vm, is_fuzzy=False)
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pvc_common.stopZKConnection(zk_conn)
# If this is a single element, strip it out of the list
if isinstance(retdata, list) and len(retdata) == 1:
retdata = retdata[0]
if retdata['state'] not in ['stop', 'disable']:
return {"message": "VM must be stopped to flush locks"}, 400
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_vm.flush_locks(zk_conn, vm)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
retcode = 200
else:
retcode = 400
output = {
'message': retdata.replace('\"', '\'')
}
return output, retcode
#
# Network functions
#
def net_list(limit=None, is_fuzzy=True):
"""
Return a list of client networks with limit LIMIT.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_network.get_list(zk_conn, limit, is_fuzzy)
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pvc_common.stopZKConnection(zk_conn)
# If this is a single element, strip it out of the list
if isinstance(retdata, list) and len(retdata) == 1:
retdata = retdata[0]
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {
'message': 'Network not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
return retdata, retcode
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def net_add(vni, description, nettype, domain, name_servers,
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ip4_network, ip4_gateway, ip6_network, ip6_gateway,
dhcp4_flag, dhcp4_start, dhcp4_end):
"""
Add a virtual client network to the PVC cluster.
"""
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if dhcp4_flag:
dhcp4_flag = bool(strtobool(dhcp4_flag))
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
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retflag, retdata = pvc_network.add_network(zk_conn, vni, description, nettype, domain, name_servers,
ip4_network, ip4_gateway, ip6_network, ip6_gateway,
dhcp4_flag, dhcp4_start, dhcp4_end)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def net_modify(vni, description, domain, name_servers,
ip4_network, ip4_gateway,
ip6_network, ip6_gateway,
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dhcp4_flag, dhcp4_start, dhcp4_end):
"""
Modify a virtual client network in the PVC cluster.
"""
if dhcp4_flag is not None:
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dhcp4_flag = bool(strtobool(dhcp4_flag))
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
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retflag, retdata = pvc_network.modify_network(zk_conn, vni, description, domain, name_servers,
ip4_network, ip4_gateway, ip6_network, ip6_gateway,
dhcp4_flag, dhcp4_start, dhcp4_end)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def net_remove(network):
"""
Remove a virtual client network from the PVC cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_network.remove_network(zk_conn, network)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
def net_dhcp_list(network, limit=None, static=False):
"""
Return a list of DHCP leases in network NETWORK with limit LIMIT.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_network.get_list_dhcp(zk_conn, network, limit, static)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {
'message': 'Lease not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
return retdata, retcode
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def net_dhcp_add(network, ipaddress, macaddress, hostname):
"""
Add a static DHCP lease to a virtual client network.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_network.add_dhcp_reservation(zk_conn, network, ipaddress, macaddress, hostname)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def net_dhcp_remove(network, macaddress):
"""
Remove a static DHCP lease from a virtual client network.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_network.remove_dhcp_reservation(zk_conn, network, macaddress)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
def net_acl_list(network, limit=None, direction=None, is_fuzzy=True):
"""
Return a list of network ACLs in network NETWORK with limit LIMIT.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_network.get_list_acl(zk_conn, network, limit, direction, is_fuzzy=True)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {
'message': 'ACL not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
# If this is a single element, strip it out of the list
if isinstance(retdata, list) and len(retdata) == 1:
retdata = retdata[0]
return retdata, retcode
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def net_acl_add(network, direction, description, rule, order):
"""
Add an ACL to a virtual client network.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_network.add_acl(zk_conn, network, direction, description, rule, order)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
def net_acl_remove(network, description):
"""
Remove an ACL from a virtual client network.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_network.remove_acl(zk_conn, network, description)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
#
# Ceph functions
#
def ceph_status():
"""
Get the current Ceph cluster status.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.get_status(zk_conn)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
retcode = 200
else:
retcode = 400
return retdata, retcode
def ceph_util():
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"""
Get the current Ceph cluster utilization.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.get_util(zk_conn)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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return retdata, retcode
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def ceph_osd_list(limit=None):
"""
Get the list of OSDs in the Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.get_list_osd(zk_conn, limit)
pvc_common.stopZKConnection(zk_conn)
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if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {
'message': 'OSD not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
return retdata, retcode
def ceph_osd_state(osd):
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.get_list_osd(zk_conn, osd)
pvc_common.stopZKConnection(zk_conn)
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if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {
'message': 'OSD not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
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in_state = retdata[0]['stats']['in']
up_state = retdata[0]['stats']['up']
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return {"id": osd, "in": in_state, "up": up_state}, retcode
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def ceph_osd_add(node, device, weight):
"""
Add a Ceph OSD to the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.add_osd(zk_conn, node, device, weight)
pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def ceph_osd_remove(osd_id):
"""
Remove a Ceph OSD from the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.remove_osd(zk_conn, osd_id)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def ceph_osd_in(osd_id):
"""
Set in a Ceph OSD in the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.in_osd(zk_conn, osd_id)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def ceph_osd_out(osd_id):
"""
Set out a Ceph OSD in the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.out_osd(zk_conn, osd_id)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def ceph_osd_set(option):
"""
Set options on a Ceph OSD in the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.set_osd(zk_conn, option)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def ceph_osd_unset(option):
"""
Unset options on a Ceph OSD in the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.unset_osd(zk_conn, option)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
def ceph_pool_list(limit=None, is_fuzzy=True):
"""
Get the list of RBD pools in the Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.get_list_pool(zk_conn, limit, is_fuzzy)
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pvc_common.stopZKConnection(zk_conn)
# If this is a single element, strip it out of the list
if isinstance(retdata, list) and len(retdata) == 1:
retdata = retdata[0]
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {
'message': 'Pool not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
return retdata, retcode
def ceph_pool_add(name, pgs, replcfg):
"""
Add a Ceph RBD pool to the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.add_pool(zk_conn, name, pgs, replcfg)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
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'message': retdata
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}
return output, retcode
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def ceph_pool_remove(name):
"""
Remove a Ceph RBD pool to the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.remove_pool(zk_conn, name)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
def ceph_volume_list(pool=None, limit=None, is_fuzzy=True):
"""
Get the list of RBD volumes in the Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.get_list_volume(zk_conn, pool, limit, is_fuzzy)
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pvc_common.stopZKConnection(zk_conn)
# If this is a single element, strip it out of the list
if isinstance(retdata, list) and len(retdata) == 1:
retdata = retdata[0]
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {
'message': 'Volume not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
return retdata, retcode
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def ceph_volume_add(pool, name, size):
"""
Add a Ceph RBD volume to the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.add_volume(zk_conn, pool, name, size)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def ceph_volume_clone(pool, name, source_volume):
"""
Clone a Ceph RBD volume to a new volume on the PVC Ceph storage cluster.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.clone_volume(zk_conn, pool, source_volume, name)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
output = {
'message': retdata.replace('\"', '\'')
}
return output, retcode
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def ceph_volume_resize(pool, name, size):
"""
Resize an existing Ceph RBD volume in the PVC Ceph storage cluster.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.resize_volume(zk_conn, pool, name, size)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
retcode = 200
else:
retcode = 400
output = {
'message': retdata.replace('\"', '\'')
}
return output, retcode
def ceph_volume_rename(pool, name, new_name):
"""
Rename a Ceph RBD volume in the PVC Ceph storage cluster.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.rename_volume(zk_conn, pool, name, new_name)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
retcode = 200
else:
retcode = 400
output = {
'message': retdata.replace('\"', '\'')
}
return output, retcode
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def ceph_volume_remove(pool, name):
"""
Remove a Ceph RBD volume to the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.remove_volume(zk_conn, pool, name)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
def ceph_volume_upload(pool, volume, img_type):
"""
Upload a raw file via HTTP post to a PVC Ceph volume
"""
# Determine the image conversion options
if img_type not in ['raw', 'vmdk', 'qcow2', 'qed', 'vdi', 'vpc']:
output = {
"message": "Image type '{}' is not valid.".format(img_type)
}
retcode = 400
return output, retcode
# Get the size of the target block device
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retcode, retdata = pvc_ceph.get_list_volume(zk_conn, pool, volume, is_fuzzy=False)
pvc_common.stopZKConnection(zk_conn)
# If there's no target, return failure
if not retcode or len(retdata) < 1:
output = {
"message": "Target volume '{}' does not exist in pool '{}'.".format(volume, pool)
}
retcode = 400
return output, retcode
dev_size = retdata[0]['stats']['size']
def cleanup_maps_and_volumes():
zk_conn = pvc_common.startZKConnection(config['coordinators'])
# Unmap the target blockdev
retflag, retdata = pvc_ceph.unmap_volume(zk_conn, pool, volume)
# Unmap the temporary blockdev
retflag, retdata = pvc_ceph.unmap_volume(zk_conn, pool, "{}_tmp".format(volume))
# Remove the temporary blockdev
retflag, retdata = pvc_ceph.remove_volume(zk_conn, pool, "{}_tmp".format(volume))
pvc_common.stopZKConnection(zk_conn)
# Create a temporary block device to store non-raw images
if img_type == 'raw':
# Map the target blockdev
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.map_volume(zk_conn, pool, volume)
pvc_common.stopZKConnection(zk_conn)
if not retflag:
output = {
'message': retdata.replace('\"', '\'')
}
retcode = 400
cleanup_maps_and_volumes()
return output, retcode
dest_blockdev = retdata
# Save the data to the blockdev directly
try:
# This sets up a custom stream_factory that writes directly into the ova_blockdev,
# rather than the standard stream_factory which writes to a temporary file waiting
# on a save() call. This will break if the API ever uploaded multiple files, but
# this is an acceptable workaround.
def image_stream_factory(total_content_length, filename, content_type, content_length=None):
return open(dest_blockdev, 'wb')
parse_form_data(flask.request.environ, stream_factory=image_stream_factory)
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except Exception:
output = {
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'message': "Failed to upload or write image file to temporary volume."
}
retcode = 400
cleanup_maps_and_volumes()
return output, retcode
output = {
'message': "Wrote uploaded file to volume '{}' in pool '{}'.".format(volume, pool)
}
retcode = 200
cleanup_maps_and_volumes()
return output, retcode
# Write the image directly to the blockdev
else:
# Create a temporary blockdev
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.add_volume(zk_conn, pool, "{}_tmp".format(volume), dev_size)
pvc_common.stopZKConnection(zk_conn)
if not retflag:
output = {
'message': retdata.replace('\"', '\'')
}
retcode = 400
cleanup_maps_and_volumes()
return output, retcode
# Map the temporary target blockdev
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.map_volume(zk_conn, pool, "{}_tmp".format(volume))
pvc_common.stopZKConnection(zk_conn)
if not retflag:
output = {
'message': retdata.replace('\"', '\'')
}
retcode = 400
cleanup_maps_and_volumes()
return output, retcode
temp_blockdev = retdata
# Map the target blockdev
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.map_volume(zk_conn, pool, volume)
pvc_common.stopZKConnection(zk_conn)
if not retflag:
output = {
'message': retdata.replace('\"', '\'')
}
retcode = 400
cleanup_maps_and_volumes()
return output, retcode
dest_blockdev = retdata
# Save the data to the temporary blockdev directly
try:
# This sets up a custom stream_factory that writes directly into the ova_blockdev,
# rather than the standard stream_factory which writes to a temporary file waiting
# on a save() call. This will break if the API ever uploaded multiple files, but
# this is an acceptable workaround.
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def image_stream_factory(total_content_length, filename, content_type, content_length=None):
return open(temp_blockdev, 'wb')
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parse_form_data(flask.request.environ, stream_factory=image_stream_factory)
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except Exception:
output = {
'message': "Failed to upload or write image file to temporary volume."
}
retcode = 400
cleanup_maps_and_volumes()
return output, retcode
# Convert from the temporary to destination format on the blockdevs
retcode, stdout, stderr = pvc_common.run_os_command(
'qemu-img convert -C -f {} -O raw {} {}'.format(img_type, temp_blockdev, dest_blockdev)
)
if retcode:
output = {
'message': "Failed to convert image format from '{}' to 'raw': {}".format(img_type, stderr)
}
retcode = 400
cleanup_maps_and_volumes()
return output, retcode
output = {
'message': "Converted and wrote uploaded file to volume '{}' in pool '{}'.".format(volume, pool)
}
retcode = 200
cleanup_maps_and_volumes()
return output, retcode
def ceph_volume_snapshot_list(pool=None, volume=None, limit=None, is_fuzzy=True):
"""
Get the list of RBD volume snapshots in the Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.get_list_snapshot(zk_conn, pool, volume, limit, is_fuzzy)
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pvc_common.stopZKConnection(zk_conn)
# If this is a single element, strip it out of the list
if isinstance(retdata, list) and len(retdata) == 1:
retdata = retdata[0]
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {
'message': 'Volume snapshot not found.'
}
else:
retcode = 400
retdata = {
'message': retdata
}
return retdata, retcode
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def ceph_volume_snapshot_add(pool, volume, name):
"""
Add a Ceph RBD volume snapshot to the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.add_snapshot(zk_conn, pool, volume, name)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode
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def ceph_volume_snapshot_rename(pool, volume, name, new_name):
"""
Rename a Ceph RBD volume snapshot in the PVC Ceph storage cluster.
"""
zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.rename_snapshot(zk_conn, pool, volume, name, new_name)
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pvc_common.stopZKConnection(zk_conn)
if retflag:
retcode = 200
else:
retcode = 400
output = {
'message': retdata.replace('\"', '\'')
}
return output, retcode
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def ceph_volume_snapshot_remove(pool, volume, name):
"""
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Remove a Ceph RBD volume snapshot from the PVC Ceph storage cluster.
"""
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zk_conn = pvc_common.startZKConnection(config['coordinators'])
retflag, retdata = pvc_ceph.remove_snapshot(zk_conn, pool, volume, name)
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pvc_common.stopZKConnection(zk_conn)
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if retflag:
retcode = 200
else:
retcode = 400
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output = {
'message': retdata.replace('\"', '\'')
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}
return output, retcode