pvc/api-daemon/pvcapid/helper.py

2414 lines
56 KiB
Python
Executable File

#!/usr/bin/env python3
# helper.py - PVC HTTP API helper functions
# Part of the Parallel Virtual Cluster (PVC) system
#
# Copyright (C) 2018-2024 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, version 3.
#
# 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
import json
import lxml.etree as etree
from re import match
from requests import get
from werkzeug.formparser import parse_form_data
from pvcapid.Daemon import config, strtobool
from daemon_lib.zkhandler import ZKConnection
import daemon_lib.common as pvc_common
import daemon_lib.cluster as pvc_cluster
import daemon_lib.faults as pvc_faults
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
#
# Cluster base functions
#
@ZKConnection(config)
def initialize_cluster(zkhandler, overwrite=False):
"""
Initialize a new cluster
"""
retflag, retmsg = pvc_cluster.cluster_initialize(zkhandler, overwrite)
retmsg = {"message": retmsg}
if retflag:
retcode = 200
else:
retcode = 400
return retmsg, retcode
@ZKConnection(config)
def backup_cluster(zkhandler):
retflag, retdata = pvc_cluster.cluster_backup(zkhandler)
if retflag:
retcode = 200
retdata = json.dumps(retdata)
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@ZKConnection(config)
def restore_cluster(zkhandler, cluster_data_raw):
try:
cluster_data = json.loads(cluster_data_raw)
except Exception as e:
return {"message": "ERROR: Failed to parse JSON data: {}".format(e)}, 400
retflag, retdata = pvc_cluster.cluster_restore(zkhandler, cluster_data)
retdata = {"message": retdata}
if retflag:
retcode = 200
else:
retcode = 400
return retdata, retcode
#
# Cluster functions
#
@pvc_common.Profiler(config)
@ZKConnection(config)
def cluster_status(zkhandler):
"""
Get the overall status of the PVC cluster
"""
retflag, retdata = pvc_cluster.get_info(zkhandler)
return retdata, 200
@ZKConnection(config)
def cluster_maintenance(zkhandler, maint_state="false"):
"""
Set the cluster in or out of maintenance state
"""
retflag, retdata = pvc_cluster.set_maintenance(zkhandler, maint_state)
retdata = {"message": retdata}
if retflag:
retcode = 200
else:
retcode = 400
return retdata, retcode
#
# Metrics functions
#
@pvc_common.Profiler(config)
@ZKConnection(config)
def cluster_health_metrics(zkhandler):
"""
Get cluster-wide Prometheus metrics for health
"""
retflag, retdata = pvc_cluster.get_health_metrics(zkhandler)
if retflag:
retcode = 200
else:
retcode = 400
return retdata, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def cluster_resource_metrics(zkhandler):
"""
Get cluster-wide Prometheus metrics for resource utilization
"""
retflag, retdata = pvc_cluster.get_resource_metrics(zkhandler)
if retflag:
retcode = 200
else:
retcode = 400
return retdata, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def ceph_metrics(zkhandler):
"""
Obtain current Ceph Prometheus metrics from the active MGR
"""
# We have to parse out the *name* of the currently active MGR
# While the JSON version of the "ceph status" output provides a
# URL, this URL is in the backend (i.e. storage) network, which
# the API might not have access to. This way, we can connect to
# the node name which can be handled however.
retcode, retdata = pvc_ceph.get_status(zkhandler)
if not retcode:
ceph_mgr_node = None
else:
ceph_data = retdata["ceph_data"]
try:
ceph_mgr_line = [
n for n in ceph_data.split("\n") if match(r"^mgr:", n.strip())
][0]
ceph_mgr_node = ceph_mgr_line.split()[1].split("(")[0]
except Exception:
ceph_mgr_node = None
if ceph_mgr_node is not None:
# Get the data from the endpoint
# We use the default port of 9283
ceph_prometheus_uri = f"http://{ceph_mgr_node}:9283/metrics"
response = get(ceph_prometheus_uri)
if response.status_code == 200:
output = response.text
status_code = 200
else:
output = (
f"Error: Failed to obtain metric data from {ceph_mgr_node} MGR daemon\n"
)
status_code = 400
else:
output = "Error: Failed to find an active MGR node\n"
status_code = 400
return output, status_code
@pvc_common.Profiler(config)
@ZKConnection(config)
def zookeeper_metrics(zkhandler):
"""
Obtain current Zookeeper Prometheus metrics from the active coordinator node
"""
primary_node = zkhandler.read("base.config.primary_node")
if primary_node is not None:
# Get the data from the endpoint
# We use the default port of 9141
zookeeper_prometheus_uri = f"http://{primary_node}:9141/metrics"
response = get(zookeeper_prometheus_uri)
if response.status_code == 200:
output = response.text
# Parse the text to remove annoying ports (":2181")
output = output.replace(":2181", "")
# Sort the output text
output_lines = output.split("\n")
output_lines.sort()
output = "\n".join(output_lines) + "\n"
status_code = 200
else:
output = f"Error: Failed to obtain metric data from {primary_node} primary node daemon\n"
status_code = 400
else:
output = "Error: Failed to find an active primary node\n"
status_code = 400
return output, status_code
#
# Fault functions
#
@pvc_common.Profiler(config)
@ZKConnection(config)
def fault_list(zkhandler, limit=None, sort_key="last_reported"):
"""
Return a list of all faults sorted by SORT_KEY.
"""
retflag, retdata = pvc_faults.get_list(zkhandler, limit=limit, sort_key=sort_key)
if retflag:
retcode = 200
elif retflag and limit is not None and len(retdata) < 1:
retcode = 404
retdata = {"message": f"No fault with ID {limit} found"}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def fault_acknowledge(zkhandler, fault_id):
"""
Acknowledge a fault of FAULT_ID.
"""
retflag, retdata = pvc_faults.acknowledge(zkhandler, fault_id=fault_id)
if retflag:
retcode = 200
else:
retcode = 404
retdata = {"message": retdata}
return retdata, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def fault_acknowledge_all(zkhandler):
"""
Acknowledge all faults.
"""
retflag, retdata = pvc_faults.acknowledge(zkhandler)
if retflag:
retcode = 200
else:
retcode = 404
retdata = {"message": retdata}
return retdata, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def fault_delete(zkhandler, fault_id):
"""
Delete a fault of FAULT_ID.
"""
retflag, retdata = pvc_faults.delete(zkhandler, fault_id=fault_id)
if retflag:
retcode = 200
else:
retcode = 404
retdata = {"message": retdata}
return retdata, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def fault_delete_all(zkhandler):
"""
Delete all faults.
"""
retflag, retdata = pvc_faults.delete(zkhandler)
if retflag:
retcode = 200
else:
retcode = 404
retdata = {"message": retdata}
return retdata, retcode
#
# Node functions
#
@pvc_common.Profiler(config)
@ZKConnection(config)
def node_list(
zkhandler,
limit=None,
daemon_state=None,
coordinator_state=None,
domain_state=None,
is_fuzzy=True,
):
"""
Return a list of nodes with limit LIMIT.
"""
retflag, retdata = pvc_node.get_list(
zkhandler,
limit,
daemon_state=daemon_state,
coordinator_state=coordinator_state,
domain_state=domain_state,
is_fuzzy=is_fuzzy,
)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "Node not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@ZKConnection(config)
def node_daemon_state(zkhandler, node):
"""
Return the daemon state of node NODE.
"""
retflag, retdata = pvc_node.get_list(zkhandler, node, is_fuzzy=False)
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}
return retdata, retcode
@ZKConnection(config)
def node_coordinator_state(zkhandler, node):
"""
Return the coordinator state of node NODE.
"""
retflag, retdata = pvc_node.get_list(zkhandler, node, is_fuzzy=False)
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}
return retdata, retcode
@ZKConnection(config)
def node_domain_state(zkhandler, node):
"""
Return the domain state of node NODE.
"""
retflag, retdata = pvc_node.get_list(zkhandler, node, is_fuzzy=False)
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
@ZKConnection(config)
def node_secondary(zkhandler, node):
"""
Take NODE out of primary coordinator mode.
"""
retflag, retdata = pvc_node.secondary_node(zkhandler, node)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def node_primary(zkhandler, node):
"""
Set NODE to primary coordinator mode.
"""
retflag, retdata = pvc_node.primary_node(zkhandler, node)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def node_flush(zkhandler, node, wait):
"""
Flush NODE of running VMs.
"""
retflag, retdata = pvc_node.flush_node(zkhandler, node, wait)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def node_ready(zkhandler, node, wait):
"""
Restore NODE to active service.
"""
retflag, retdata = pvc_node.ready_node(zkhandler, node, wait)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def node_log(zkhandler, node, lines=None):
"""
Return the current logs for Node.
"""
# Default to 10 lines of log if not set
try:
lines = int(lines)
except TypeError:
lines = 10
retflag, retdata = pvc_node.get_node_log(zkhandler, node, lines)
if retflag:
retcode = 200
retdata = {"name": node, "data": retdata}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
#
# VM functions
#
@ZKConnection(config)
def vm_is_migrated(zkhandler, vm):
"""
Determine if a VM is migrated or not
"""
retdata = pvc_vm.is_migrated(zkhandler, vm)
return retdata
@pvc_common.Profiler(config)
@ZKConnection(config)
def vm_state(zkhandler, vm):
"""
Return the state of virtual machine VM.
"""
retflag, retdata = pvc_vm.get_list(
zkhandler, None, None, None, vm, is_fuzzy=False, negate=False
)
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
@pvc_common.Profiler(config)
@ZKConnection(config)
def vm_node(zkhandler, vm):
"""
Return the current node of virtual machine VM.
"""
retflag, retdata = pvc_vm.get_list(
zkhandler, None, None, None, vm, is_fuzzy=False, negate=False
)
if len(retdata) > 0:
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
@ZKConnection(config)
def vm_console(zkhandler, vm, lines=None):
"""
Return the current console log for VM.
"""
# Default to 10 lines of log if not set
try:
lines = int(lines)
except TypeError:
lines = 10
retflag, retdata = pvc_vm.get_console_log(zkhandler, vm, lines)
if retflag:
retcode = 200
retdata = {"name": vm, "data": retdata}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def vm_list(
zkhandler, node=None, state=None, tag=None, limit=None, is_fuzzy=True, negate=False
):
"""
Return a list of VMs with limit LIMIT.
"""
retflag, retdata = pvc_vm.get_list(
zkhandler, node, state, tag, limit, is_fuzzy, negate
)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "VM not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@ZKConnection(config)
def vm_define(
zkhandler,
xml,
node,
limit,
selector,
autostart,
migration_method,
migration_max_downtime=300,
user_tags=[],
protected_tags=[],
):
"""
Define a VM from Libvirt XML in the PVC cluster.
"""
# 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:
return {"message": "XML is malformed or incorrect: {}".format(e)}, 400
tags = list()
for tag in user_tags:
tags.append({"name": tag, "type": "user", "protected": False})
for tag in protected_tags:
tags.append({"name": tag, "type": "user", "protected": True})
retflag, retdata = pvc_vm.define_vm(
zkhandler,
new_cfg,
node,
limit,
selector,
autostart,
migration_method,
migration_max_downtime,
profile=None,
tags=tags,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_backup(
zkhandler,
domain,
backup_path,
incremental_parent=None,
retain_snapshot=False,
):
"""
Back up a VM to a local (primary coordinator) filesystem path.
"""
retflag, retdata = pvc_vm.backup_vm(
zkhandler,
domain,
backup_path,
incremental_parent,
retain_snapshot,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_remove_backup(
zkhandler,
domain,
source_path,
datestring,
):
"""
Remove a VM backup from snapshots and a local (primary coordinator) filesystem path.
"""
retflag, retdata = pvc_vm.remove_backup(
zkhandler,
domain,
source_path,
datestring,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_restore(
zkhandler,
domain,
backup_path,
datestring,
retain_snapshot=False,
):
"""
Restore a VM from a local (primary coordinator) filesystem path.
"""
retflag, retdata = pvc_vm.restore_vm(
zkhandler,
domain,
backup_path,
datestring,
retain_snapshot,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def create_vm_snapshot(
zkhandler,
domain,
snapshot_name=None,
):
"""
Take a snapshot of a VM.
"""
retflag, retdata = pvc_vm.create_vm_snapshot(
zkhandler,
domain,
snapshot_name,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def remove_vm_snapshot(
zkhandler,
domain,
snapshot_name,
):
"""
Take a snapshot of a VM.
"""
retflag, retdata = pvc_vm.remove_vm_snapshot(
zkhandler,
domain,
snapshot_name,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def rollback_vm_snapshot(
zkhandler,
domain,
snapshot_name,
):
"""
Roll back to a snapshot of a VM.
"""
retflag, retdata = pvc_vm.rollback_vm_snapshot(
zkhandler,
domain,
snapshot_name,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def export_vm_snapshot(
zkhandler,
domain,
snapshot_name,
export_path,
incremental_parent=None,
):
"""
Export a snapshot of a VM to files.
"""
retflag, retdata = pvc_vm.export_vm_snapshot(
zkhandler,
domain,
snapshot_name,
export_path,
incremental_parent,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def import_vm_snapshot(
zkhandler,
domain,
snapshot_name,
export_path,
retain_snapshot=False,
):
"""
Import a snapshot of a VM from files.
"""
retflag, retdata = pvc_vm.import_vm_snapshot(
zkhandler,
domain,
snapshot_name,
export_path,
retain_snapshot,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_attach_device(zkhandler, vm, device_spec_xml):
"""
Hot-attach a device (via XML spec) to a VM.
"""
try:
_ = etree.fromstring(device_spec_xml)
except Exception as e:
return {"message": "XML is malformed or incorrect: {}".format(e)}, 400
retflag, retdata = pvc_vm.attach_vm_device(zkhandler, vm, device_spec_xml)
if retflag:
retcode = 200
output = {"message": retdata.replace('"', "'")}
else:
retcode = 400
output = {
"message": "WARNING: Failed to perform hot attach; device will be added on next VM start/restart."
}
return output, retcode
@ZKConnection(config)
def vm_detach_device(zkhandler, vm, device_spec_xml):
"""
Hot-detach a device (via XML spec) from a VM.
"""
try:
_ = etree.fromstring(device_spec_xml)
except Exception as e:
return {"message": "XML is malformed or incorrect: {}".format(e)}, 400
retflag, retdata = pvc_vm.detach_vm_device(zkhandler, vm, device_spec_xml)
if retflag:
retcode = 200
output = {"message": retdata.replace('"', "'")}
else:
retcode = 400
output = {
"message": "WARNING: Failed to perform hot detach; device will be removed on next VM start/restart."
}
return output, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def get_vm_meta(zkhandler, vm):
"""
Get metadata of a VM.
"""
dom_uuid = pvc_vm.getDomainUUID(zkhandler, vm)
if not dom_uuid:
return {"message": "VM not found."}, 404
(
domain_node_limit,
domain_node_selector,
domain_node_autostart,
domain_migrate_method,
domain_migrate_max_downtime,
) = pvc_common.getDomainMetadata(zkhandler, dom_uuid)
retcode = 200
retdata = {
"name": vm,
"node_limit": domain_node_limit,
"node_selector": domain_node_selector.lower(),
"node_autostart": domain_node_autostart,
"migration_method": domain_migrate_method.lower(),
"migration_max_downtime": int(domain_migrate_max_downtime),
}
return retdata, retcode
@ZKConnection(config)
def update_vm_meta(
zkhandler,
vm,
limit,
selector,
autostart,
provisioner_profile,
migration_method,
migration_max_downtime,
):
"""
Update metadata of a VM.
"""
dom_uuid = pvc_vm.getDomainUUID(zkhandler, vm)
if not dom_uuid:
return {"message": "VM not found."}, 404
if autostart is not None:
try:
autostart = bool(strtobool(autostart))
except Exception:
autostart = False
retflag, retdata = pvc_vm.modify_vm_metadata(
zkhandler,
vm,
limit,
selector,
autostart,
provisioner_profile,
migration_method,
migration_max_downtime,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def get_vm_tags(zkhandler, vm):
"""
Get the tags of a VM.
"""
dom_uuid = pvc_vm.getDomainUUID(zkhandler, vm)
if not dom_uuid:
return {"message": "VM not found."}, 404
tags = pvc_common.getDomainTags(zkhandler, dom_uuid)
retcode = 200
retdata = {"name": vm, "tags": tags}
return retdata, retcode
@ZKConnection(config)
def update_vm_tag(zkhandler, vm, action, tag, protected=False):
"""
Update a tag of a VM.
"""
if action not in ["add", "remove"]:
return {"message": "Tag action must be one of 'add', 'remove'."}, 400
dom_uuid = pvc_vm.getDomainUUID(zkhandler, vm)
if not dom_uuid:
return {"message": "VM not found."}, 404
retflag, retdata = pvc_vm.modify_vm_tag(
zkhandler, vm, action, tag, protected=protected
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_modify(zkhandler, name, restart, xml):
"""
Modify a VM Libvirt XML in the PVC cluster.
"""
# 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:
return {"message": "XML is malformed or incorrect: {}".format(e)}, 400
retflag, retdata = pvc_vm.modify_vm(zkhandler, name, restart, new_cfg)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_rename(zkhandler, name, new_name):
"""
Rename a VM in the PVC cluster.
"""
if new_name is None:
output = {"message": "A new VM name must be specified"}
return 400, output
if pvc_vm.searchClusterByName(zkhandler, new_name) is not None:
output = {
"message": "A VM named '{}' is already present in the cluster".format(
new_name
)
}
return 400, output
retflag, retdata = pvc_vm.rename_vm(zkhandler, name, new_name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_undefine(zkhandler, name):
"""
Undefine a VM from the PVC cluster.
"""
retflag, retdata = pvc_vm.undefine_vm(zkhandler, name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_remove(zkhandler, name):
"""
Remove a VM from the PVC cluster.
"""
retflag, retdata = pvc_vm.remove_vm(zkhandler, name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_start(zkhandler, name):
"""
Start a VM in the PVC cluster.
"""
retflag, retdata = pvc_vm.start_vm(zkhandler, name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_restart(zkhandler, name, wait=False):
"""
Restart a VM in the PVC cluster.
"""
retflag, retdata = pvc_vm.restart_vm(zkhandler, name, wait=wait)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_shutdown(zkhandler, name, wait):
"""
Shutdown a VM in the PVC cluster.
"""
retflag, retdata = pvc_vm.shutdown_vm(zkhandler, name, wait)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_stop(zkhandler, name):
"""
Forcibly stop a VM in the PVC cluster.
"""
retflag, retdata = pvc_vm.stop_vm(zkhandler, name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_disable(zkhandler, name, force=False):
"""
Disable (shutdown or force stop if required)a VM in the PVC cluster.
"""
retflag, retdata = pvc_vm.disable_vm(zkhandler, name, force=force)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_move(zkhandler, name, node, wait, force_live):
"""
Move a VM to another node.
"""
retflag, retdata = pvc_vm.move_vm(zkhandler, name, node, wait, force_live)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_migrate(zkhandler, name, node, flag_force, wait, force_live):
"""
Temporarily migrate a VM to another node.
"""
retflag, retdata = pvc_vm.migrate_vm(
zkhandler, name, node, flag_force, wait, force_live
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_unmigrate(zkhandler, name, wait, force_live):
"""
Unmigrate a migrated VM.
"""
retflag, retdata = pvc_vm.unmigrate_vm(zkhandler, name, wait, force_live)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def vm_flush_locks(zkhandler, vm):
"""
Flush locks of a (stopped) VM.
"""
retflag, retdata = pvc_vm.get_list(
zkhandler, None, None, None, vm, is_fuzzy=False, negate=False
)
if retdata[0].get("state") not in ["stop", "disable", "mirror"]:
return {"message": "VM must be stopped to flush locks"}, 400
retflag, retdata = pvc_vm.flush_locks(zkhandler, vm)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
def vm_snapshot_receive_block(
pool, volume, snapshot, size, stream, source_snapshot=None
):
try:
import rados
import rbd
cluster = rados.Rados(conffile="/etc/ceph/ceph.conf")
cluster.connect()
ioctx = cluster.open_ioctx(pool)
if not source_snapshot:
rbd_inst = rbd.RBD()
rbd_inst.create(ioctx, volume, size)
image = rbd.Image(ioctx, volume)
last_chunk = 0
chunk_size = 1024 * 1024 * 128
if source_snapshot:
# Receiving diff data
print(f"Applying diff between {source_snapshot} and {snapshot}")
while True:
chunk = stream.read(chunk_size)
if not chunk:
break
# Extract the offset and length (8 bytes each) and the data
offset = int.from_bytes(chunk[:8], "big")
length = int.from_bytes(chunk[8:16], "big")
data = chunk[16 : 16 + length]
image.write(data, offset)
image.create_snap(snapshot)
else:
# Receiving full image
print(f"Importing full snapshot {snapshot}")
while True:
chunk = flask.request.stream.read(chunk_size)
if not chunk:
break
image.write(chunk, last_chunk)
last_chunk += len(chunk)
image.create_snap(snapshot)
image.close()
ioctx.close()
cluster.shutdown()
except Exception as e:
return {"message": f"Failed to import block device: {e}"}, 400
#
# Network functions
#
@pvc_common.Profiler(config)
@ZKConnection(config)
def net_list(zkhandler, limit=None, is_fuzzy=True):
"""
Return a list of client networks with limit LIMIT.
"""
retflag, retdata = pvc_network.get_list(zkhandler, limit, is_fuzzy)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "Network not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@ZKConnection(config)
def net_add(
zkhandler,
vni,
description,
nettype,
mtu,
domain,
name_servers,
ip4_network,
ip4_gateway,
ip6_network,
ip6_gateway,
dhcp4_flag,
dhcp4_start,
dhcp4_end,
):
"""
Add a virtual client network to the PVC cluster.
"""
if dhcp4_flag:
dhcp4_flag = bool(strtobool(dhcp4_flag))
retflag, retdata = pvc_network.add_network(
zkhandler,
vni,
description,
nettype,
mtu,
domain,
name_servers,
ip4_network,
ip4_gateway,
ip6_network,
ip6_gateway,
dhcp4_flag,
dhcp4_start,
dhcp4_end,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def net_modify(
zkhandler,
vni,
description,
mtu,
domain,
name_servers,
ip4_network,
ip4_gateway,
ip6_network,
ip6_gateway,
dhcp4_flag,
dhcp4_start,
dhcp4_end,
):
"""
Modify a virtual client network in the PVC cluster.
"""
if dhcp4_flag is not None:
dhcp4_flag = bool(strtobool(dhcp4_flag))
retflag, retdata = pvc_network.modify_network(
zkhandler,
vni,
description,
mtu,
domain,
name_servers,
ip4_network,
ip4_gateway,
ip6_network,
ip6_gateway,
dhcp4_flag,
dhcp4_start,
dhcp4_end,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def net_remove(zkhandler, network):
"""
Remove a virtual client network from the PVC cluster.
"""
retflag, retdata = pvc_network.remove_network(zkhandler, network)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def net_dhcp_list(zkhandler, network, limit=None, static=False):
"""
Return a list of DHCP leases in network NETWORK with limit LIMIT.
"""
retflag, retdata = pvc_network.get_list_dhcp(zkhandler, network, limit, static)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "Lease not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@ZKConnection(config)
def net_dhcp_add(zkhandler, network, ipaddress, macaddress, hostname):
"""
Add a static DHCP lease to a virtual client network.
"""
retflag, retdata = pvc_network.add_dhcp_reservation(
zkhandler, network, ipaddress, macaddress, hostname
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def net_dhcp_remove(zkhandler, network, macaddress):
"""
Remove a static DHCP lease from a virtual client network.
"""
retflag, retdata = pvc_network.remove_dhcp_reservation(
zkhandler, network, macaddress
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def net_acl_list(zkhandler, network, limit=None, direction=None, is_fuzzy=True):
"""
Return a list of network ACLs in network NETWORK with limit LIMIT.
"""
retflag, retdata = pvc_network.get_list_acl(
zkhandler, network, limit, direction, is_fuzzy=True
)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "ACL not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@ZKConnection(config)
def net_acl_add(zkhandler, network, direction, description, rule, order):
"""
Add an ACL to a virtual client network.
"""
retflag, retdata = pvc_network.add_acl(
zkhandler, network, direction, description, rule, order
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def net_acl_remove(zkhandler, network, description):
"""
Remove an ACL from a virtual client network.
"""
retflag, retdata = pvc_network.remove_acl(zkhandler, network, description)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
#
# SR-IOV functions
#
@pvc_common.Profiler(config)
@ZKConnection(config)
def sriov_pf_list(zkhandler, node):
"""
List all PFs on a given node.
"""
retflag, retdata = pvc_network.get_list_sriov_pf(zkhandler, node)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "PF not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def sriov_vf_list(zkhandler, node, pf=None):
"""
List all VFs on a given node, optionally limited to PF.
"""
retflag, retdata = pvc_network.get_list_sriov_vf(zkhandler, node, pf)
if retflag:
retcode = 200
else:
retcode = 400
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "VF not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@ZKConnection(config)
def update_sriov_vf_config(
zkhandler,
node,
vf,
vlan_id,
vlan_qos,
tx_rate_min,
tx_rate_max,
link_state,
spoof_check,
trust,
query_rss,
):
"""
Update configuration of a VF on NODE.
"""
retflag, retdata = pvc_network.set_sriov_vf_config(
zkhandler,
node,
vf,
vlan_id,
vlan_qos,
tx_rate_min,
tx_rate_max,
link_state,
spoof_check,
trust,
query_rss,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
#
# Ceph functions
#
@ZKConnection(config)
def ceph_status(zkhandler):
"""
Get the current Ceph cluster status.
"""
retflag, retdata = pvc_ceph.get_status(zkhandler)
if retflag:
retcode = 200
else:
retcode = 400
return retdata, retcode
@ZKConnection(config)
def ceph_util(zkhandler):
"""
Get the current Ceph cluster utilization.
"""
retflag, retdata = pvc_ceph.get_util(zkhandler)
if retflag:
retcode = 200
else:
retcode = 400
return retdata, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def ceph_osd_list(zkhandler, limit=None):
"""
Get the list of OSDs in the Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.get_list_osd(zkhandler, limit)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "OSD not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def ceph_osd_node(zkhandler, osd):
"""
Return the current node of OSD OSD.
"""
retflag, retdata = pvc_ceph.get_list_osd(zkhandler, None)
if retflag:
if retdata:
osd = [o for o in retdata if o["id"] == osd]
if len(osd) < 1:
retcode = 404
retdata = {"message": "OSD not found."}
else:
retcode = 200
retdata = {
"id": osd[0]["id"],
"node": osd[0]["node"],
}
else:
retcode = 404
retdata = {"message": "OSD not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@ZKConnection(config)
def ceph_osd_state(zkhandler, osd):
retflag, retdata = pvc_ceph.get_list_osd(zkhandler, osd)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "OSD not found."}
else:
retcode = 400
retdata = {"message": retdata}
in_state = retdata[0]["stats"]["in"]
up_state = retdata[0]["stats"]["up"]
return {"id": osd, "in": in_state, "up": up_state}, retcode
@ZKConnection(config)
def ceph_osd_db_vg_add(zkhandler, node, device):
"""
Add a Ceph OSD database VG to the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.add_osd_db_vg(zkhandler, node, device)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_osd_add(
zkhandler,
node,
device,
weight,
ext_db_ratio=None,
ext_db_size=None,
split_count=None,
):
"""
Add a Ceph OSD to the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.add_osd(
zkhandler,
node,
device,
weight,
ext_db_ratio,
ext_db_size,
split_count,
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_osd_replace(
zkhandler,
osd_id,
new_device,
old_device=None,
weight=None,
ext_db_ratio=None,
ext_db_size=None,
):
"""
Replace a Ceph OSD in the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.replace_osd(
zkhandler, osd_id, new_device, old_device, weight, ext_db_ratio, ext_db_size
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_osd_refresh(zkhandler, osd_id, device):
"""
Refresh (reimport) a Ceph OSD in the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.refresh_osd(zkhandler, osd_id, device)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_osd_remove(zkhandler, osd_id, force_flag):
"""
Remove a Ceph OSD from the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.remove_osd(zkhandler, osd_id, force_flag)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_osd_in(zkhandler, osd_id):
"""
Set in a Ceph OSD in the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.in_osd(zkhandler, osd_id)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_osd_out(zkhandler, osd_id):
"""
Set out a Ceph OSD in the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.out_osd(zkhandler, osd_id)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_osd_set(zkhandler, option):
"""
Set options on a Ceph OSD in the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.set_osd(zkhandler, option)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_osd_unset(zkhandler, option):
"""
Unset options on a Ceph OSD in the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.unset_osd(zkhandler, option)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def ceph_pool_list(zkhandler, limit=None, is_fuzzy=True):
"""
Get the list of RBD pools in the Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.get_list_pool(zkhandler, limit, is_fuzzy)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "Pool not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@ZKConnection(config)
def ceph_pool_add(zkhandler, name, pgs, replcfg, tier=None):
"""
Add a Ceph RBD pool to the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.add_pool(zkhandler, name, pgs, replcfg, tier)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata}
return output, retcode
@ZKConnection(config)
def ceph_pool_remove(zkhandler, name):
"""
Remove a Ceph RBD pool to the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.remove_pool(zkhandler, name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_pool_set_pgs(zkhandler, name, pgs):
"""
Set the PGs of a ceph RBD pool.
"""
retflag, retdata = pvc_ceph.set_pgs_pool(zkhandler, name, pgs)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@pvc_common.Profiler(config)
@ZKConnection(config)
def ceph_volume_list(zkhandler, pool=None, limit=None, is_fuzzy=True):
"""
Get the list of RBD volumes in the Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.get_list_volume(zkhandler, pool, limit, is_fuzzy)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "Volume not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@ZKConnection(config)
def ceph_volume_scan(zkhandler, pool, name):
"""
(Re)scan a Ceph RBD volume for stats in the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.scan_volume(zkhandler, pool, name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_volume_add(zkhandler, pool, name, size, force_flag=False):
"""
Add a Ceph RBD volume to the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.add_volume(
zkhandler, pool, name, size, force_flag=force_flag
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_volume_clone(zkhandler, pool, name, source_volume, force_flag):
"""
Clone a Ceph RBD volume to a new volume on the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.clone_volume(
zkhandler, pool, source_volume, name, force_flag=force_flag
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_volume_resize(zkhandler, pool, name, size, force_flag):
"""
Resize an existing Ceph RBD volume in the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.resize_volume(
zkhandler, pool, name, size, force_flag=force_flag
)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_volume_rename(zkhandler, pool, name, new_name):
"""
Rename a Ceph RBD volume in the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.rename_volume(zkhandler, pool, name, new_name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_volume_remove(zkhandler, pool, name):
"""
Remove a Ceph RBD volume to the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.remove_volume(zkhandler, pool, name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_volume_upload(zkhandler, pool, volume, img_type, file_size=None):
"""
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
retcode, retdata = pvc_ceph.get_list_volume(zkhandler, pool, volume, is_fuzzy=False)
# 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
try:
dev_size = retdata[0]["stats"]["size"]
except Exception:
output = {
"message": "Target volume '{}' does not exist in pool '{}'.".format(
volume, pool
)
}
retcode = 400
return output, retcode
def cleanup_maps_and_volumes():
# Unmap the target blockdev
retflag, retdata = pvc_ceph.unmap_volume(zkhandler, pool, volume)
# Unmap the temporary blockdev
retflag, retdata = pvc_ceph.unmap_volume(
zkhandler, pool, "{}_tmp".format(volume)
)
# Remove the temporary blockdev
retflag, retdata = pvc_ceph.remove_volume(
zkhandler, pool, "{}_tmp".format(volume)
)
if img_type == "raw":
if file_size != dev_size:
output = {
"message": f"Image file size {file_size} does not match volume size {dev_size}"
}
retcode = 400
return output, retcode
# Map the target blockdev
retflag, retdata = pvc_ceph.map_volume(zkhandler, pool, volume)
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)
except Exception:
output = {
"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
else:
if file_size is None:
output = {"message": "A file size must be specified"}
retcode = 400
return output, retcode
# Create a temporary blockdev
retflag, retdata = pvc_ceph.add_volume(
zkhandler, pool, "{}_tmp".format(volume), file_size
)
if not retflag:
output = {"message": retdata.replace('"', "'")}
retcode = 400
cleanup_maps_and_volumes()
return output, retcode
# Map the temporary target blockdev
retflag, retdata = pvc_ceph.map_volume(zkhandler, pool, "{}_tmp".format(volume))
if not retflag:
output = {"message": retdata.replace('"', "'")}
retcode = 400
cleanup_maps_and_volumes()
return output, retcode
temp_blockdev = retdata
# Map the target blockdev
retflag, retdata = pvc_ceph.map_volume(zkhandler, pool, volume)
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.
def image_stream_factory(
total_content_length, filename, content_type, content_length=None
):
return open(temp_blockdev, "wb")
parse_form_data(flask.request.environ, stream_factory=image_stream_factory)
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
@pvc_common.Profiler(config)
@ZKConnection(config)
def ceph_volume_snapshot_list(
zkhandler, pool=None, volume=None, limit=None, is_fuzzy=True
):
"""
Get the list of RBD volume snapshots in the Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.get_list_snapshot(
zkhandler, pool, volume, limit, is_fuzzy
)
if retflag:
if retdata:
retcode = 200
else:
retcode = 404
retdata = {"message": "Volume snapshot not found."}
else:
retcode = 400
retdata = {"message": retdata}
return retdata, retcode
@ZKConnection(config)
def ceph_volume_snapshot_add(zkhandler, pool, volume, name):
"""
Add a Ceph RBD volume snapshot to the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.add_snapshot(zkhandler, pool, volume, name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_volume_snapshot_rename(zkhandler, pool, volume, name, new_name):
"""
Rename a Ceph RBD volume snapshot in the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.rename_snapshot(zkhandler, pool, volume, name, new_name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_volume_snapshot_rollback(zkhandler, pool, volume, name):
"""
Roll back a Ceph RBD volume to a given snapshot in the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.rollback_snapshot(zkhandler, pool, volume, name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode
@ZKConnection(config)
def ceph_volume_snapshot_remove(zkhandler, pool, volume, name):
"""
Remove a Ceph RBD volume snapshot from the PVC Ceph storage cluster.
"""
retflag, retdata = pvc_ceph.remove_snapshot(zkhandler, pool, volume, name)
if retflag:
retcode = 200
else:
retcode = 400
output = {"message": retdata.replace('"', "'")}
return output, retcode