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Convert VM snapshots to worker tasks 

Improves manageability and offloads these from the API context.
This commit is contained in:
Joshua Boniface 2024-08-20 16:42:18 -04:00
parent 4a0680b27f
commit 9a661d0173
5 changed files with 1286 additions and 845 deletions
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94
api-daemon/pvcapid/flaskapi.py
View File

@ -3194,7 +3194,23 @@ class API_VM_Snapshot(Resource):
id: Message
"""
snapshot_name = reqargs.get("snapshot_name", None)
return api_helper.create_vm_snapshot(vm, snapshot_name=snapshot_name)
task = run_celery_task(
"vm.create_snapshot",
domain=vm,
snapshot_name=snapshot_name,
run_on="primary",
)
return (
{
"task_id": task.id,
"task_name": "vm.create_snapshot",
"run_on": get_primary_node(),
},
202,
{"Location": Api.url_for(api, API_Tasks_Element, task_id=task.id)},
)
@RequestParser(
[
@ -3236,7 +3252,23 @@ class API_VM_Snapshot(Resource):
id: Message
"""
snapshot_name = reqargs.get("snapshot_name", None)
return api_helper.remove_vm_snapshot(vm, snapshot_name)
task = run_celery_task(
"vm.remove_snapshot",
domain=vm,
snapshot_name=snapshot_name,
run_on="primary",
)
return (
{
"task_id": task.id,
"task_name": "vm.remove_snapshot",
"run_on": get_primary_node(),
},
202,
{"Location": Api.url_for(api, API_Tasks_Element, task_id=task.id)},
)
api.add_resource(API_VM_Snapshot, "/vm/<vm>/snapshot")
@ -3284,7 +3316,23 @@ class API_VM_Snapshot_Rollback(Resource):
id: Message
"""
snapshot_name = reqargs.get("snapshot_name", None)
return api_helper.rollback_vm_snapshot(vm, snapshot_name)
task = run_celery_task(
"vm.rollback_snapshot",
domain=vm,
snapshot_name=snapshot_name,
run_on="primary",
)
return (
{
"task_id": task.id,
"task_name": "vm.rollback_snapshot",
"run_on": get_primary_node(),
},
202,
{"Location": Api.url_for(api, API_Tasks_Element, task_id=task.id)},
)
api.add_resource(API_VM_Snapshot_Rollback, "/vm/<vm>/snapshot/rollback")
@ -3354,8 +3402,24 @@ class API_VM_Snapshot_Export(Resource):
snapshot_name = reqargs.get("snapshot_name", None)
export_path = reqargs.get("export_path", None)
incremental_parent = reqargs.get("incremental_parent", None)
return api_helper.export_vm_snapshot(
vm, snapshot_name, export_path, incremental_parent
task = run_celery_task(
"vm.export_snapshot",
domain=vm,
snapshot_name=snapshot_name,
export_path=export_path,
incremental_parent=incremental_parent,
run_on="primary",
)
return (
{
"task_id": task.id,
"task_name": "vm.export_snapshot",
"run_on": get_primary_node(),
},
202,
{"Location": Api.url_for(api, API_Tasks_Element, task_id=task.id)},
)
@ -3427,8 +3491,24 @@ class API_VM_Snapshot_Import(Resource):
snapshot_name = reqargs.get("snapshot_name", None)
import_path = reqargs.get("import_path", None)
retain_snapshot = bool(strtobool(reqargs.get("retain_snapshot", "True")))
return api_helper.import_vm_snapshot(
vm, snapshot_name, import_path, retain_snapshot
task = run_celery_task(
"vm.import_snapshot",
domain=vm,
snapshot_name=snapshot_name,
import_path=import_path,
retain_snapshot=retain_snapshot,
run_on="primary",
)
return (
{
"task_id": task.id,
"task_name": "vm.import_snapshot",
"run_on": get_primary_node(),
},
202,
{"Location": Api.url_for(api, API_Tasks_Element, task_id=task.id)},
)

137
client-cli/pvc/cli/cli.py
View File

@ -1758,7 +1758,7 @@ def cli_vm_flush_locks(domain, wait_flag):
NOTE: This is a task-based command. The "--wait" flag (default) will block and show progress. Specifying the "--no-wait" flag will return immediately with a job ID instead, which can be queried externally later.
"""
retcode, retmsg = pvc.lib.vm.vm_locks(CLI_CONFIG, domain, wait_flag)
retcode, retmsg = pvc.lib.vm.vm_locks(CLI_CONFIG, domain, wait_flag=wait_flag)
if retcode and wait_flag:
retmsg = wait_for_celery_task(CLI_CONFIG, retmsg)
@ -1787,7 +1787,15 @@ def cli_vm_snapshot():
@connection_req
@click.argument("domain")
@click.argument("snapshot_name", required=False, default=None)
def cli_vm_snapshot_create(domain, snapshot_name):
@click.option(
"--wait/--no-wait",
"wait_flag",
is_flag=True,
default=True,
show_default=True,
help="Wait or don't wait for task to complete, showing progress",
)
def cli_vm_snapshot_create(domain, snapshot_name, wait_flag):
"""
Create a snapshot of the disks and XML configuration of virtual machine DOMAIN, with the
optional name SNAPSHOT_NAME. DOMAIN may be a UUID or name.
@ -1797,18 +1805,12 @@ def cli_vm_snapshot_create(domain, snapshot_name):
VM at the moment of the snapshot.
"""
echo(
CLI_CONFIG,
f"Taking snapshot of VM '{domain}'... ",
newline=False,
)
retcode, retmsg = pvc.lib.vm.vm_create_snapshot(
CLI_CONFIG, domain, snapshot_name=snapshot_name
CLI_CONFIG, domain, snapshot_name=snapshot_name, wait_flag=wait_flag
)
if retcode:
echo(CLI_CONFIG, "done.")
else:
echo(CLI_CONFIG, "failed.")
if retcode and wait_flag:
retmsg = wait_for_celery_task(CLI_CONFIG, retmsg)
finish(retcode, retmsg)
@ -1819,23 +1821,27 @@ def cli_vm_snapshot_create(domain, snapshot_name):
@connection_req
@click.argument("domain")
@click.argument("snapshot_name")
@click.option(
"--wait/--no-wait",
"wait_flag",
is_flag=True,
default=True,
show_default=True,
help="Wait or don't wait for task to complete, showing progress",
)
@confirm_opt("Remove shapshot {snapshot_name} of VM {domain}")
def cli_vm_snapshot_remove(domain, snapshot_name):
def cli_vm_snapshot_remove(domain, snapshot_name, wait_flag):
"""
Remove the snapshot SNAPSHOT_NAME of the disks and XML configuration of virtual machine DOMAIN,
DOMAIN may be a UUID or name.
"""
echo(
CLI_CONFIG,
f"Removing snapshot '{snapshot_name}' of VM '{domain}'... ",
newline=False,
retcode, retmsg = pvc.lib.vm.vm_remove_snapshot(
CLI_CONFIG, domain, snapshot_name, wait_flag=wait_flag
)
retcode, retmsg = pvc.lib.vm.vm_remove_snapshot(CLI_CONFIG, domain, snapshot_name)
if retcode:
echo(CLI_CONFIG, "done.")
else:
echo(CLI_CONFIG, "failed.")
if retcode and wait_flag:
retmsg = wait_for_celery_task(CLI_CONFIG, retmsg)
finish(retcode, retmsg)
@ -1848,25 +1854,29 @@ def cli_vm_snapshot_remove(domain, snapshot_name):
@connection_req
@click.argument("domain")
@click.argument("snapshot_name")
@click.option(
"--wait/--no-wait",
"wait_flag",
is_flag=True,
default=True,
show_default=True,
help="Wait or don't wait for task to complete, showing progress",
)
@confirm_opt(
"Roll back to snapshot {snapshot_name} of {domain} and lose all data and changes since this snapshot"
)
def cli_vm_snapshot_rollback(domain, snapshot_name):
def cli_vm_snapshot_rollback(domain, snapshot_name, wait_flag):
"""
Roll back to the snapshot SNAPSHOT_NAME of the disks and XML configuration of virtual machine DOMAIN,
DOMAIN may be a UUID or name.
"""
echo(
CLI_CONFIG,
f"Rolling back to snapshot '{snapshot_name}' of VM '{domain}'... ",
newline=False,
retcode, retmsg = pvc.lib.vm.vm_rollback_snapshot(
CLI_CONFIG, domain, snapshot_name, wait_flag=wait_flag
)
retcode, retmsg = pvc.lib.vm.vm_rollback_snapshot(CLI_CONFIG, domain, snapshot_name)
if retcode:
echo(CLI_CONFIG, "done.")
else:
echo(CLI_CONFIG, "failed.")
if retcode and wait_flag:
retmsg = wait_for_celery_task(CLI_CONFIG, retmsg)
finish(retcode, retmsg)
@ -1887,7 +1897,17 @@ def cli_vm_snapshot_rollback(domain, snapshot_name):
default=None,
help="Perform an incremental volume export from this parent snapshot.",
)
def cli_vm_snapshot_export(domain, snapshot_name, export_path, incremental_parent):
@click.option(
"--wait/--no-wait",
"wait_flag",
is_flag=True,
default=True,
show_default=True,
help="Wait or don't wait for task to complete, showing progress",
)
def cli_vm_snapshot_export(
domain, snapshot_name, export_path, incremental_parent, wait_flag
):
"""
Export the (existing) snapshot SNAPSHOT_NAME of virtual machine DOMAIN to the absolute path EXPORT_PATH on the current PVC primary coordinator.
DOMAIN may be a UUID or name.
@ -1901,19 +1921,17 @@ def cli_vm_snapshot_export(domain, snapshot_name, export_path, incremental_paren
Full export volume images are sparse-allocated, however it is recommended for safety to consider their maximum allocated size when allocated space for the EXPORT_PATH. Incremental volume images are generally small but are dependent entirely on the rate of data change in each volume.
"""
_, primary_node = pvc.lib.cluster.get_primary_node(CLI_CONFIG)
echo(
CLI_CONFIG,
f'Exporting snapshot "{snapshot_name}" of VM "{domain}" to "{primary_node}:{export_path}"... ',
newline=False,
)
retcode, retmsg = pvc.lib.vm.vm_export_snapshot(
CLI_CONFIG, domain, snapshot_name, export_path, incremental_parent
CLI_CONFIG,
domain,
snapshot_name,
export_path,
incremental_parent=incremental_parent,
wait_flag=wait_flag,
)
if retcode:
echo(CLI_CONFIG, "done.")
else:
echo(CLI_CONFIG, "failed.")
if retcode and wait_flag:
retmsg = wait_for_celery_task(CLI_CONFIG, retmsg)
finish(retcode, retmsg)
@ -1933,7 +1951,17 @@ def cli_vm_snapshot_export(domain, snapshot_name, export_path, incremental_paren
default=True,
help="Retain or remove restored (parent, if incremental) snapshot in Ceph.",
)
def cli_vm_snapshot_import(domain, snapshot_name, import_path, retain_snapshot):
@click.option(
"--wait/--no-wait",
"wait_flag",
is_flag=True,
default=True,
show_default=True,
help="Wait or don't wait for task to complete, showing progress",
)
def cli_vm_snapshot_import(
domain, snapshot_name, import_path, retain_snapshot, wait_flag
):
"""
Import the snapshot SNAPSHOT_NAME of virtual machine DOMAIN from the absolute path IMPORT_PATH on the current PVC primary coordinator.
DOMAIN may be a UUID or name.
@ -1949,18 +1977,17 @@ def cli_vm_snapshot_import(domain, snapshot_name, import_path, retain_snapshot):
WARNING: The "-R"/"--remove-snapshot" option will invalidate any existing incremental snapshots based on the same incremental parent for the imported VM.
"""
echo(
CLI_CONFIG,
f"Importing snapshot '{snapshot_name}' of VM '{domain}'... ",
newline=False,
)
retcode, retmsg = pvc.lib.vm.vm_import_snapshot(
CLI_CONFIG, domain, snapshot_name, import_path, retain_snapshot
CLI_CONFIG,
domain,
snapshot_name,
import_path,
retain_snapshot=retain_snapshot,
wait_flag=wait_flag,
)
if retcode:
echo(CLI_CONFIG, "done.")
else:
echo(CLI_CONFIG, "failed.")
if retcode and wait_flag:
retmsg = wait_for_celery_task(CLI_CONFIG, retmsg)
finish(retcode, retmsg)

41
client-cli/pvc/lib/vm.py
View File

@ -421,7 +421,7 @@ def vm_node(config, vm, target_node, action, force=False, wait=False, force_live
return retstatus, response.json().get("message", "")
def vm_locks(config, vm, wait_flag):
def vm_locks(config, vm, wait_flag=True):
"""
Flush RBD locks of (stopped) VM
@ -498,7 +498,7 @@ def vm_restore(config, vm, backup_path, backup_datestring, retain_snapshot=False
return True, response.json().get("message", "")
def vm_create_snapshot(config, vm, snapshot_name=None):
def vm_create_snapshot(config, vm, snapshot_name=None, wait_flag=True):
"""
Take a snapshot of a VM's disks and configuration
@ -513,13 +513,10 @@ def vm_create_snapshot(config, vm, snapshot_name=None):
config, "post", "/vm/{vm}/snapshot".format(vm=vm), params=params
)
if response.status_code != 200:
return False, response.json().get("message", "")
else:
return True, response.json().get("message", "")
return get_wait_retdata(response, wait_flag)
def vm_remove_snapshot(config, vm, snapshot_name):
def vm_remove_snapshot(config, vm, snapshot_name, wait_flag=True):
"""
Remove a snapshot of a VM's disks and configuration
@ -532,13 +529,10 @@ def vm_remove_snapshot(config, vm, snapshot_name):
config, "delete", "/vm/{vm}/snapshot".format(vm=vm), params=params
)
if response.status_code != 200:
return False, response.json().get("message", "")
else:
return True, response.json().get("message", "")
return get_wait_retdata(response, wait_flag)
def vm_rollback_snapshot(config, vm, snapshot_name):
def vm_rollback_snapshot(config, vm, snapshot_name, wait_flag=True):
"""
Roll back to a snapshot of a VM's disks and configuration
@ -551,13 +545,12 @@ def vm_rollback_snapshot(config, vm, snapshot_name):
config, "post", "/vm/{vm}/snapshot/rollback".format(vm=vm), params=params
)
if response.status_code != 200:
return False, response.json().get("message", "")
else:
return True, response.json().get("message", "")
return get_wait_retdata(response, wait_flag)
def vm_export_snapshot(config, vm, snapshot_name, export_path, incremental_parent):
def vm_export_snapshot(
config, vm, snapshot_name, export_path, incremental_parent=None, wait_flag=True
):
"""
Export an (existing) snapshot of a VM's disks and configuration to export_path, optionally
incremental with incremental_parent
@ -577,13 +570,12 @@ def vm_export_snapshot(config, vm, snapshot_name, export_path, incremental_paren
config, "post", "/vm/{vm}/snapshot/export".format(vm=vm), params=params
)
if response.status_code != 200:
return False, response.json().get("message", "")
else:
return True, response.json().get("message", "")
return get_wait_retdata(response, wait_flag)
def vm_import_snapshot(config, vm, snapshot_name, import_path, retain_snapshot=False):
def vm_import_snapshot(
config, vm, snapshot_name, import_path, retain_snapshot=False, wait_flag=True
):
"""
Import a snapshot of {vm} and its volumes from a local primary coordinator filesystem path
@ -600,10 +592,7 @@ def vm_import_snapshot(config, vm, snapshot_name, import_path, retain_snapshot=F
config, "post", "/vm/{vm}/snapshot/import".format(vm=vm), params=params
)
if response.status_code != 200:
return False, response.json().get("message", "")
else:
return True, response.json().get("message", "")
return get_wait_retdata(response, wait_flag)
def vm_vcpus_set(config, vm, vcpus, topology, restart):

1773
daemon-common/vm.py
View File

File diff suppressed because it is too large Load Diff

86
worker-daemon/pvcworkerd/Daemon.py
View File

@ -28,6 +28,11 @@ from daemon_lib.vm import (
vm_worker_flush_locks,
vm_worker_attach_device,
vm_worker_detach_device,
vm_worker_create_snapshot,
vm_worker_remove_snapshot,
vm_worker_rollback_snapshot,
vm_worker_export_snapshot,
vm_worker_import_snapshot,
)
from daemon_lib.ceph import (
osd_worker_add_osd,
@ -123,6 +128,87 @@ def vm_device_detach(self, domain=None, xml=None, run_on=None):
return run_vm_device_detach(self, domain, xml)
@celery.task(name="vm.create_snapshot", bind=True, routing_key="run_on")
def vm_create_snapshot(self, domain=None, snapshot_name=None, run_on="primary"):
@ZKConnection(config)
def run_vm_create_snapshot(zkhandler, self, domain, snapshot_name):
return vm_worker_create_snapshot(zkhandler, self, domain, snapshot_name)
return run_vm_create_snapshot(self, domain, snapshot_name)
@celery.task(name="vm.remove_snapshot", bind=True, routing_key="run_on")
def vm_remove_snapshot(self, domain=None, snapshot_name=None, run_on="primary"):
@ZKConnection(config)
def run_vm_remove_snapshot(zkhandler, self, domain, snapshot_name):
return vm_worker_remove_snapshot(zkhandler, self, domain, snapshot_name)
return run_vm_remove_snapshot(self, domain, snapshot_name)
@celery.task(name="vm.rollback_snapshot", bind=True, routing_key="run_on")
def vm_rollback_snapshot(self, domain=None, snapshot_name=None, run_on="primary"):
@ZKConnection(config)
def run_vm_rollback_snapshot(zkhandler, self, domain, snapshot_name):
return vm_worker_rollback_snapshot(zkhandler, self, domain, snapshot_name)
return run_vm_rollback_snapshot(self, domain, snapshot_name)
@celery.task(name="vm.export_snapshot", bind=True, routing_key="run_on")
def vm_export_snapshot(
self,
domain=None,
snapshot_name=None,
export_path=None,
incremental_parent=None,
run_on="primary",
):
@ZKConnection(config)
def run_vm_export_snapshot(
zkhandler, self, domain, snapshot_name, export_path, incremental_parent=None
):
return vm_worker_export_snapshot(
zkhandler,
self,
domain,
snapshot_name,
export_path,
incremental_parent=incremental_parent,
)
return run_vm_export_snapshot(
self, domain, snapshot_name, export_path, incremental_parent=incremental_parent
)
@celery.task(name="vm.import_snapshot", bind=True, routing_key="run_on")
def vm_import_snapshot(
self,
domain=None,
snapshot_name=None,
import_path=None,
retain_snapshot=True,
run_on="primary",
):
@ZKConnection(config)
def run_vm_import_snapshot(
zkhandler, self, domain, snapshot_name, import_path, retain_snapshot=True
):
return vm_worker_import_snapshot(
zkhandler,
self,
domain,
snapshot_name,
import_path,
retain_snapshot=retain_snapshot,
)
return run_vm_import_snapshot(
self, domain, snapshot_name, import_path, retain_snapshot=retain_snapshot
)
@celery.task(name="osd.add", bind=True, routing_key="run_on")
def osd_add(
self,