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Add live migrate max downtime selector meta field 

Adds a new flag to VM metadata to allow setting the VM live migration
max downtime. This will enable very busy VMs that hang live migration to
have this value changed.
This commit is contained in:
Joshua Boniface 2024-01-10 16:13:31 -05:00
parent 38eeb78423
commit 09269f182c
17 changed files with 283 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
api-daemon/migrations/versions/977e7b4d3497_pvc_version_0_9_89.py Normal file
View File

@ -0,0 +1,28 @@
"""PVC version 0.9.89
Revision ID: 977e7b4d3497
Revises: 88fa0d88a9f8
Create Date: 2024-01-10 16:09:44.659027
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = '977e7b4d3497'
down_revision = '88fa0d88a9f8'
branch_labels = None
depends_on = None
def upgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.add_column('system_template', sa.Column('migration_max_downtime', sa.Integer(), default="300", server_default="300", nullable=True))
# ### end Alembic commands ###
def downgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.drop_column('system_template', 'migration_max_downtime')
# ### end Alembic commands ###

3
api-daemon/pvc-api-db-upgrade
View File

@ -19,7 +19,8 @@ case "$( cat /etc/debian_version )" in
;;
*)
# Debian 12+
flask --app ./pvcapid-manage_flask.py db upgrade
export FLASK_APP=./pvcapid-manage_flask.py
flask db upgrade
;;
esac

64
api-daemon/pvcapid/flaskapi.py
View File

@ -46,7 +46,7 @@ from flask_sqlalchemy import SQLAlchemy
app = flask.Flask(__name__)
# Set up SQLAlchemy backend
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = True
app.config["SQLALCHEMY_DATABASE_URI"] = "postgresql://{}:{}@{}:{}/{}".format(
config["api_postgresql_user"],
config["api_postgresql_password"],
@ -1591,6 +1591,9 @@ class API_VM_Root(Resource):
migration_method:
type: string
description: The preferred migration method (live, shutdown, none)
migration_max_downtime:
type: integer
description: The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger max_downtime
tags:
type: array
description: The tag(s) of the VM
@ -1843,6 +1846,10 @@ class API_VM_Root(Resource):
"choices": ("live", "shutdown", "none"),
"helptext": "A valid migration_method must be specified",
},
{
"name": "migration_max_downtime",
"helptext": "A valid migration_max_downtime must be specified",
},
{"name": "user_tags", "action": "append"},
{"name": "protected_tags", "action": "append"},
{
@ -1903,6 +1910,12 @@ class API_VM_Root(Resource):
- live
- shutdown
- none
- in: query
name: migration_max_downtime
type: integer
required: false
description: The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger max_downtime
default: 300
- in: query
name: user_tags
type: array
@ -1943,6 +1956,7 @@ class API_VM_Root(Resource):
reqargs.get("selector", "none"),
bool(strtobool(reqargs.get("autostart", "false"))),
reqargs.get("migration_method", "none"),
reqargs.get("migration_max_downtime", 300),
user_tags,
protected_tags,
)
@ -1990,6 +2004,10 @@ class API_VM_Element(Resource):
"choices": ("live", "shutdown", "none"),
"helptext": "A valid migration_method must be specified",
},
{
"name": "migration_max_downtime",
"helptext": "A valid migration_max_downtime must be specified",
},
{"name": "user_tags", "action": "append"},
{"name": "protected_tags", "action": "append"},
{
@ -2052,6 +2070,12 @@ class API_VM_Element(Resource):
- live
- shutdown
- none
- in: query
name: migration_max_downtime
type: integer
required: false
description: The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger max_downtime
default: 300
- in: query
name: user_tags
type: array
@ -2092,6 +2116,7 @@ class API_VM_Element(Resource):
reqargs.get("selector", "none"),
bool(strtobool(reqargs.get("autostart", "false"))),
reqargs.get("migration_method", "none"),
reqargs.get("migration_max_downtime", 300),
user_tags,
protected_tags,
)
@ -2218,6 +2243,9 @@ class API_VM_Metadata(Resource):
migration_method:
type: string
description: The preferred migration method (live, shutdown, none)
migration_max_downtime:
type: integer
description: The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger max_downtime
404:
description: VM not found
schema:
@ -2241,6 +2269,10 @@ class API_VM_Metadata(Resource):
"choices": ("live", "shutdown", "none"),
"helptext": "A valid migration_method must be specified",
},
{
"name": "migration_max_downtime",
"helptext": "A valid migration_max_downtime must be specified",
},
]
)
@Authenticator
@ -2288,6 +2320,12 @@ class API_VM_Metadata(Resource):
- live
- shutdown
- none
- in: query
name: migration_max_downtime
type: integer
required: false
description: The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger max_downtime
default: none
responses:
200:
description: OK
@ -2312,6 +2350,7 @@ class API_VM_Metadata(Resource):
reqargs.get("autostart", None),
reqargs.get("profile", None),
reqargs.get("migration_method", None),
reqargs.get("migration_max_downtime", None),
)
@ -6387,6 +6426,9 @@ class API_Provisioner_Template_System_Root(Resource):
migration_method:
type: string
description: The preferred migration method (live, shutdown, none)
migration_max_downtime:
type: integer
description: The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger max_downtime
parameters:
- in: query
name: limit
@ -6431,6 +6473,7 @@ class API_Provisioner_Template_System_Root(Resource):
{"name": "node_selector"},
{"name": "node_autostart"},
{"name": "migration_method"},
{"name": "migration_max_downtime"},
]
)
@Authenticator
@ -6491,6 +6534,11 @@ class API_Provisioner_Template_System_Root(Resource):
type: string
required: false
description: The preferred migration method (live, shutdown, none)
- in: query
name: migration_max_downtime
type: integer
required: false
description: The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger max_downtime
responses:
200:
description: OK
@ -6541,6 +6589,7 @@ class API_Provisioner_Template_System_Root(Resource):
reqargs.get("node_selector", None),
node_autostart,
reqargs.get("migration_method", None),
reqargs.get("migration_max_downtime", None),
)
@ -6596,6 +6645,7 @@ class API_Provisioner_Template_System_Element(Resource):
{"name": "node_selector"},
{"name": "node_autostart"},
{"name": "migration_method"},
{"name": "migration_max_downtime"},
]
)
@Authenticator
@ -6651,6 +6701,11 @@ class API_Provisioner_Template_System_Element(Resource):
type: string
required: false
description: The preferred migration method (live, shutdown, none)
- in: query
name: migration_max_downtime
type: integer
required: false
description: The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger max_downtime
responses:
200:
description: OK
@ -6701,6 +6756,7 @@ class API_Provisioner_Template_System_Element(Resource):
reqargs.get("node_selector", None),
node_autostart,
reqargs.get("migration_method", None),
reqargs.get("migration_max_downtime", None),
)
@RequestParser(
@ -6714,6 +6770,7 @@ class API_Provisioner_Template_System_Element(Resource):
{"name": "node_selector"},
{"name": "node_autostart"},
{"name": "migration_method"},
{"name": "migration_max_downtime"},
]
)
@Authenticator
@ -6760,6 +6817,10 @@ class API_Provisioner_Template_System_Element(Resource):
name: migration_method
type: string
description: The preferred migration method (live, shutdown, none)
- in: query
name: migration_max_downtime
type: integer
description: The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger max_downtime
responses:
200:
description: OK
@ -6783,6 +6844,7 @@ class API_Provisioner_Template_System_Element(Resource):
reqargs.get("node_selector", None),
reqargs.get("node_autostart", None),
reqargs.get("migration_method", None),
reqargs.get("migration_max_downtime", None),
)
@Authenticator

22
api-daemon/pvcapid/helper.py
View File

@ -641,6 +641,7 @@ def vm_define(
selector,
autostart,
migration_method,
migration_max_downtime=300,
user_tags=[],
protected_tags=[],
):
@ -668,6 +669,7 @@ def vm_define(
selector,
autostart,
migration_method,
migration_max_downtime,
profile=None,
tags=tags,
)
@ -826,6 +828,7 @@ def get_vm_meta(zkhandler, vm):
domain_node_selector,
domain_node_autostart,
domain_migrate_method,
domain_migrate_max_downtime,
) = pvc_common.getDomainMetadata(zkhandler, dom_uuid)
retcode = 200
@ -835,6 +838,7 @@ def get_vm_meta(zkhandler, vm):
"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
@ -842,7 +846,14 @@ def get_vm_meta(zkhandler, vm):
@ZKConnection(config)
def update_vm_meta(
zkhandler, vm, limit, selector, autostart, provisioner_profile, migration_method
zkhandler,
vm,
limit,
selector,
autostart,
provisioner_profile,
migration_method,
migration_max_downtime,
):
"""
Update metadata of a VM.
@ -858,7 +869,14 @@ def update_vm_meta(
autostart = False
retflag, retdata = pvc_vm.modify_vm_metadata(
zkhandler, vm, limit, selector, autostart, provisioner_profile, migration_method
zkhandler,
vm,
limit,
selector,
autostart,
provisioner_profile,
migration_method,
migration_max_downtime,
)
if retflag:

3
api-daemon/pvcapid/models.py
View File

@ -36,6 +36,7 @@ class DBSystemTemplate(db.Model):
node_selector = db.Column(db.Text)
node_autostart = db.Column(db.Boolean, nullable=False)
migration_method = db.Column(db.Text)
migration_max_downtime = db.Column(db.Integer, default=300, server_default="300")
ova = db.Column(db.Integer, db.ForeignKey("ova.id"), nullable=True)
def __init__(
@ -50,6 +51,7 @@ class DBSystemTemplate(db.Model):
node_selector,
node_autostart,
migration_method,
migration_max_downtime,
ova=None,
):
self.name = name
@ -62,6 +64,7 @@ class DBSystemTemplate(db.Model):
self.node_selector = node_selector
self.node_autostart = node_autostart
self.migration_method = migration_method
self.migration_max_downtime = migration_max_downtime
self.ova = ova
def __repr__(self):

10
api-daemon/pvcapid/provisioner.py
View File

@ -221,6 +221,7 @@ def create_template_system(
node_selector=None,
node_autostart=False,
migration_method=None,
migration_max_downtime=None,
ova=None,
):
if list_template_system(name, is_fuzzy=False)[-1] != 404:
@ -231,7 +232,7 @@ def create_template_system(
if node_selector == "none":
node_selector = None
query = "INSERT INTO system_template (name, vcpu_count, vram_mb, serial, vnc, vnc_bind, node_limit, node_selector, node_autostart, migration_method, ova) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s);"
query = "INSERT INTO system_template (name, vcpu_count, vram_mb, serial, vnc, vnc_bind, node_limit, node_selector, node_autostart, migration_method, migration_max_downtime, ova) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s);"
args = (
name,
vcpu_count,
@ -243,6 +244,7 @@ def create_template_system(
node_selector,
node_autostart,
migration_method,
migration_max_downtime,
ova,
)
@ -438,6 +440,7 @@ def modify_template_system(
node_selector=None,
node_autostart=None,
migration_method=None,
migration_max_downtime=None,
):
if list_template_system(name, is_fuzzy=False)[-1] != 200:
retmsg = {"message": 'The system template "{}" does not exist.'.format(name)}
@ -505,6 +508,11 @@ def modify_template_system(
if migration_method is not None:
fields.append({"field": "migration_method", "data": migration_method})
if migration_max_downtime is not None:
fields.append(
{"field": "migration_max_downtime", "data": int(migration_max_downtime)}
)
conn, cur = open_database(config)
try:
for field in fields:

48
client-cli/pvc/cli/cli.py
View File

@ -1098,6 +1098,14 @@ def cli_vm():
type=click.Choice(["none", "live", "shutdown"]),
help="The preferred migration method of the VM between nodes; saved with VM.",
)
@click.option(
"-d",
"--max-downtime",
"migration_max_downtime",
default=300,
show_default=True,
help="The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger downtime.",
)
@click.option(
"-g",
"--tag",
@ -1122,6 +1130,7 @@ def cli_vm_define(
node_selector,
node_autostart,
migration_method,
migration_max_downtime,
user_tags,
protected_tags,
):
@ -1135,10 +1144,12 @@ def cli_vm_define(
* "load": choose the node with the lowest current load average
* "vms": choose the node with the least number of provisioned VMs
For most clusters, "mem" should be sufficient, but others may be used based on the cluster workload and available resources. The following caveats should be considered:
For most clusters, the migration method selector ("--method"/"-m") "mem" should be sufficient, but others may be used based on the cluster workload and available resources. The following caveats should be considered:
* "mem" looks at the free memory of the node in general, ignoring the amount provisioned to VMs; if any VM's internal memory usage changes, this value would be affected.
* "memprov" looks at the provisioned memory, not the allocated memory; thus, stopped or disabled VMs are counted towards a node's memory for this selector, even though their memory is not actively in use.
* "load" looks at the system load of the node in general, ignoring load in any particular VMs; if any VM's CPU usage changes, this value would be affected. This might be preferable on clusters with some very CPU intensive VMs.
For most VMs, the 300ms default maximum downtime ("--max-downtime"/"-d") should be sufficient. However very busy VMs with a lot of memory pressure or CPU load may require a larger downtime to properly migrate. Generally, keep this at the default unless you know the VM will be extremely busy, or you find you have problems migrating it later. Reasonable values range from 100ms to 2000ms (2 seconds).
"""
# Open the XML file
@ -1160,6 +1171,7 @@ def cli_vm_define(
node_selector,
node_autostart,
migration_method,
migration_max_downtime,
user_tags,
protected_tags,
)
@ -1205,6 +1217,13 @@ def cli_vm_define(
type=click.Choice(["none", "live", "shutdown"]),
help="The preferred migration method of the VM between nodes.",
)
@click.option(
"-d",
"--max-downtime",
"migration_max_downtime",
default=None,
help="The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger downtime.",
)
@click.option(
"-p",
"--profile",
@ -1220,12 +1239,13 @@ def cli_vm_meta(
node_selector,
node_autostart,
migration_method,
migration_max_downtime,
provisioner_profile,
):
"""
Modify the PVC metadata of existing virtual machine DOMAIN. At least one option to update must be specified. DOMAIN may be a UUID or name.
For details on the "--node-selector"/"-s" values, please see help for the command "pvc vm define".
For details on the available option values, please see help for the command "pvc vm define".
"""
if (
@ -1233,6 +1253,7 @@ def cli_vm_meta(
and node_selector is None
and node_autostart is None
and migration_method is None
and migration_max_downtime is None
and provisioner_profile is None
):
finish(False, "At least one metadata option must be specified to update.")
@ -1244,6 +1265,7 @@ def cli_vm_meta(
node_selector,
node_autostart,
migration_method,
migration_max_downtime,
provisioner_profile,
)
finish(retcode, retmsg)
@ -4456,6 +4478,13 @@ def cli_provisioner_template_system():
default=None, # Use cluster default
help="The preferred migration method of the VM between nodes",
)
@click.option(
"--max-downtime",
"migration_max_downtime",
default=300,
show_default=True,
help="The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger downtime.",
)
def cli_provisioner_template_system_add(
name,
vcpus,
@ -4467,11 +4496,12 @@ def cli_provisioner_template_system_add(
node_selector,
node_autostart,
migration_method,
migration_max_downtime,
):
"""
Add a new system template NAME to the PVC cluster provisioner.
For details on the possible "--node-selector" values, please see help for the command "pvc vm define".
For details on the possible option values, please see help for the command "pvc vm define".
"""
params = dict()
params["name"] = name
@ -4489,6 +4519,8 @@ def cli_provisioner_template_system_add(
params["node_autostart"] = node_autostart
if migration_method:
params["migration_method"] = migration_method
if migration_max_downtime:
params["migration_max_downtime"] = migration_max_downtime
retcode, retdata = pvc.lib.provisioner.template_add(
CLI_CONFIG, params, template_type="system"
@ -4551,6 +4583,12 @@ def cli_provisioner_template_system_add(
default=None, # Use cluster default
help="The preferred migration method of the VM between nodes",
)
@click.option(
"--max-downtime",
"migration_max_downtime",
default=None,
help="The maximum time in milliseconds that a VM can be down for during a live migration; busy VMs may require a larger downtime.",
)
def cli_provisioner_template_system_modify(
name,
vcpus,
@ -4562,11 +4600,12 @@ def cli_provisioner_template_system_modify(
node_selector,
node_autostart,
migration_method,
migration_max_downtime,
):
"""
Add a new system template NAME to the PVC cluster provisioner.
For details on the possible "--node-selector" values, please see help for the command "pvc vm define".
For details on the possible option values, please see help for the command "pvc vm define".
"""
params = dict()
params["vcpus"] = vcpus
@ -4578,6 +4617,7 @@ def cli_provisioner_template_system_modify(
params["node_selector"] = node_selector
params["node_autostart"] = node_autostart
params["migration_method"] = migration_method
params["migration_max_downtime"] = migration_max_downtime
retcode, retdata = pvc.lib.provisioner.template_modify(
CLI_CONFIG, params, name, template_type="system"

32
client-cli/pvc/lib/provisioner.py
View File

@ -779,7 +779,8 @@ def format_list_template_system(template_data):
template_node_limit_length = 6
template_node_selector_length = 9
template_node_autostart_length = 10
template_migration_method_length = 10
template_migration_method_length = 12
template_migration_max_downtime_length = 13
for template in template_data:
# template_name column
@ -826,6 +827,17 @@ def format_list_template_system(template_data):
_template_migration_method_length = len(str(template["migration_method"])) + 1
if _template_migration_method_length > template_migration_method_length:
template_migration_method_length = _template_migration_method_length
# template_migration_max_downtime column
_template_migration_max_downtime_length = (
len(str(template["migration_max_downtime"])) + 1
)
if (
_template_migration_max_downtime_length
> template_migration_max_downtime_length
):
template_migration_max_downtime_length = (
_template_migration_max_downtime_length
)
# Format the string (header)
template_list_output.append(
@ -842,7 +854,8 @@ def format_list_template_system(template_data):
+ template_node_selector_length
+ template_node_autostart_length
+ template_migration_method_length
+ 3,
+ template_migration_max_downtime_length
+ 4,
template_header="System Templates "
+ "".join(
["-" for _ in range(17, template_name_length + template_id_length)]
@ -874,7 +887,8 @@ def format_list_template_system(template_data):
+ template_node_selector_length
+ template_node_autostart_length
+ template_migration_method_length
+ 2,
+ template_migration_max_downtime_length
+ 3,
)
]
),
@ -891,7 +905,8 @@ def format_list_template_system(template_data):
{template_node_limit: <{template_node_limit_length}} \
{template_node_selector: <{template_node_selector_length}} \
{template_node_autostart: <{template_node_autostart_length}} \
{template_migration_method: <{template_migration_method_length}}{end_bold}".format(
{template_migration_method: <{template_migration_method_length}} \
{template_migration_max_downtime: <{template_migration_max_downtime_length}}{end_bold}".format(
bold=ansiprint.bold(),
end_bold=ansiprint.end(),
template_name_length=template_name_length,
@ -905,6 +920,7 @@ def format_list_template_system(template_data):
template_node_selector_length=template_node_selector_length,
template_node_autostart_length=template_node_autostart_length,
template_migration_method_length=template_migration_method_length,
template_migration_max_downtime_length=template_migration_max_downtime_length,
template_name="Name",
template_id="ID",
template_vcpu="vCPUs",
@ -915,7 +931,8 @@ def format_list_template_system(template_data):
template_node_limit="Limit",
template_node_selector="Selector",
template_node_autostart="Autostart",
template_migration_method="Migration",
template_migration_method="Mig. Method",
template_migration_max_downtime="Max Downtime",
)
)
@ -931,7 +948,8 @@ def format_list_template_system(template_data):
{template_node_limit: <{template_node_limit_length}} \
{template_node_selector: <{template_node_selector_length}} \
{template_node_autostart: <{template_node_autostart_length}} \
{template_migration_method: <{template_migration_method_length}}{end_bold}".format(
{template_migration_method: <{template_migration_method_length}} \
{template_migration_max_downtime: <{template_migration_max_downtime_length}}{end_bold}".format(
template_name_length=template_name_length,
template_id_length=template_id_length,
template_vcpu_length=template_vcpu_length,
@ -943,6 +961,7 @@ def format_list_template_system(template_data):
template_node_selector_length=template_node_selector_length,
template_node_autostart_length=template_node_autostart_length,
template_migration_method_length=template_migration_method_length,
template_migration_max_downtime_length=template_migration_max_downtime_length,
bold="",
end_bold="",
template_name=str(template["name"]),
@ -956,6 +975,7 @@ def format_list_template_system(template_data):
template_node_selector=str(template["node_selector"]),
template_node_autostart=str(template["node_autostart"]),
template_migration_method=str(template["migration_method"]),
template_migration_max_downtime=f"{str(template['migration_max_downtime'])} ms",
)
)

33
client-cli/pvc/lib/vm.py
View File

@ -205,6 +205,7 @@ def vm_metadata(
node_selector,
node_autostart,
migration_method,
migration_max_downtime,
provisioner_profile,
):
"""
@ -229,6 +230,9 @@ def vm_metadata(
if migration_method is not None:
params["migration_method"] = migration_method
if migration_max_downtime is not None:
params["migration_max_downtime"] = migration_max_downtime
if provisioner_profile is not None:
params["profile"] = provisioner_profile
@ -1637,14 +1641,14 @@ def format_info(config, domain_information, long_output):
)
)
ainformation.append(
"{}Current Node:{} {}".format(
"{}Current node:{} {}".format(
ansiprint.purple(), ansiprint.end(), domain_information["node"]
)
)
if not domain_information["last_node"]:
domain_information["last_node"] = "N/A"
ainformation.append(
"{}Previous Node:{} {}".format(
"{}Previous node:{} {}".format(
ansiprint.purple(), ansiprint.end(), domain_information["last_node"]
)
)
@ -1676,15 +1680,12 @@ def format_info(config, domain_information, long_output):
formatted_node_autostart = "True"
if not domain_information.get("migration_method"):
formatted_migration_method = "Any"
formatted_migration_method = "Live, Shutdown"
else:
formatted_migration_method = str(domain_information["migration_method"]).title()
formatted_migration_method = (
f"{str(domain_information['migration_method']).title()} only"
)
ainformation.append(
"{}Migration selector:{} {}".format(
ansiprint.purple(), ansiprint.end(), formatted_node_selector
)
)
ainformation.append(
"{}Node limit:{} {}".format(
ansiprint.purple(), ansiprint.end(), formatted_node_limit
@ -1700,10 +1701,22 @@ def format_info(config, domain_information, long_output):
)
)
ainformation.append(
"{}Migration Method:{} {}".format(
"{}Migration method:{} {}".format(
ansiprint.purple(), ansiprint.end(), formatted_migration_method
)
)
ainformation.append(
"{}Migration selector:{} {}".format(
ansiprint.purple(), ansiprint.end(), formatted_node_selector
)
)
ainformation.append(
"{}Max live downtime:{} {}".format(
ansiprint.purple(),
ansiprint.end(),
f"{domain_information['migration_max_downtime']} ms",
)
)
# Tag list
tags_name_length = 5

8
daemon-common/common.py
View File

@ -441,12 +441,14 @@ def getDomainMetadata(zkhandler, dom_uuid):
domain_node_selector,
domain_node_autostart,
domain_migration_method,
domain_migration_max_downtime,
) = zkhandler.read_many(
[
("domain.meta.node_limit", dom_uuid),
("domain.meta.node_selector", dom_uuid),
("domain.meta.autostart", dom_uuid),
("domain.meta.migrate_method", dom_uuid),
("domain.meta.migrate_max_downtime", dom_uuid),
]
)
@ -464,11 +466,15 @@ def getDomainMetadata(zkhandler, dom_uuid):
if not domain_migration_method or domain_migration_method == "none":
domain_migration_method = None
if not domain_migration_max_downtime or domain_migration_max_downtime == "none":
domain_migration_max_downtime = 300
return (
domain_node_limit,
domain_node_selector,
domain_node_autostart,
domain_migration_method,
domain_migration_max_downtime,
)
@ -505,6 +511,7 @@ def getInformationFromXML(zkhandler, uuid):
domain_node_selector,
domain_node_autostart,
domain_migration_method,
domain_migration_max_downtime,
) = getDomainMetadata(zkhandler, uuid)
domain_tags = getDomainTags(zkhandler, uuid)
@ -565,6 +572,7 @@ def getInformationFromXML(zkhandler, uuid):
"node_selector": domain_node_selector,
"node_autostart": bool(strtobool(domain_node_autostart)),
"migration_method": domain_migration_method,
"migration_max_downtime": int(domain_migration_max_downtime),
"tags": domain_tags,
"description": domain_description,
"profile": domain_profile,

1
daemon-common/migrations/versions/13.json Normal file
View File

@ -0,0 +1 @@
{"version": "13", "root": "", "base": {"root": "", "schema": "/schema", "schema.version": "/schema/version", "config": "/config", "config.maintenance": "/config/maintenance", "config.primary_node": "/config/primary_node", "config.primary_node.sync_lock": "/config/primary_node/sync_lock", "config.upstream_ip": "/config/upstream_ip", "config.migration_target_selector": "/config/migration_target_selector", "logs": "/logs", "faults": "/faults", "node": "/nodes", "domain": "/domains", "network": "/networks", "storage": "/ceph", "storage.health": "/ceph/health", "storage.util": "/ceph/util", "osd": "/ceph/osds", "pool": "/ceph/pools", "volume": "/ceph/volumes", "snapshot": "/ceph/snapshots"}, "logs": {"node": "", "messages": "/messages"}, "faults": {"id": "", "last_time": "/last_time", "first_time": "/first_time", "ack_time": "/ack_time", "status": "/status", "delta": "/delta", "message": "/message"}, "node": {"name": "", "keepalive": "/keepalive", "mode": "/daemonmode", "data.active_schema": "/activeschema", "data.latest_schema": "/latestschema", "data.static": "/staticdata", "data.pvc_version": "/pvcversion", "running_domains": "/runningdomains", "count.provisioned_domains": "/domainscount", "count.networks": "/networkscount", "state.daemon": "/daemonstate", "state.router": "/routerstate", "state.domain": "/domainstate", "cpu.load": "/cpuload", "vcpu.allocated": "/vcpualloc", "memory.total": "/memtotal", "memory.used": "/memused", "memory.free": "/memfree", "memory.allocated": "/memalloc", "memory.provisioned": "/memprov", "ipmi.hostname": "/ipmihostname", "ipmi.username": "/ipmiusername", "ipmi.password": "/ipmipassword", "sriov": "/sriov", "sriov.pf": "/sriov/pf", "sriov.vf": "/sriov/vf", "monitoring.plugins": "/monitoring_plugins", "monitoring.data": "/monitoring_data", "monitoring.health": "/monitoring_health", "network.stats": "/network_stats"}, "monitoring_plugin": {"name": "", "last_run": "/last_run", "health_delta": "/health_delta", "message": "/message", "data": "/data", "runtime": "/runtime"}, "sriov_pf": {"phy": "", "mtu": "/mtu", "vfcount": "/vfcount"}, "sriov_vf": {"phy": "", "pf": "/pf", "mtu": "/mtu", "mac": "/mac", "phy_mac": "/phy_mac", "config": "/config", "config.vlan_id": "/config/vlan_id", "config.vlan_qos": "/config/vlan_qos", "config.tx_rate_min": "/config/tx_rate_min", "config.tx_rate_max": "/config/tx_rate_max", "config.spoof_check": "/config/spoof_check", "config.link_state": "/config/link_state", "config.trust": "/config/trust", "config.query_rss": "/config/query_rss", "pci": "/pci", "pci.domain": "/pci/domain", "pci.bus": "/pci/bus", "pci.slot": "/pci/slot", "pci.function": "/pci/function", "used": "/used", "used_by": "/used_by"}, "domain": {"name": "", "xml": "/xml", "state": "/state", "profile": "/profile", "stats": "/stats", "node": "/node", "last_node": "/lastnode", "failed_reason": "/failedreason", "storage.volumes": "/rbdlist", "console.log": "/consolelog", "console.vnc": "/vnc", "meta.autostart": "/node_autostart", "meta.migrate_method": "/migration_method", "meta.migrate_max_downtime": "/migration_max_downtime", "meta.node_selector": "/node_selector", "meta.node_limit": "/node_limit", "meta.tags": "/tags", "migrate.sync_lock": "/migrate_sync_lock"}, "tag": {"name": "", "type": "/type", "protected": "/protected"}, "network": {"vni": "", "type": "/nettype", "mtu": "/mtu", "rule": "/firewall_rules", "rule.in": "/firewall_rules/in", "rule.out": "/firewall_rules/out", "nameservers": "/name_servers", "domain": "/domain", "reservation": "/dhcp4_reservations", "lease": "/dhcp4_leases", "ip4.gateway": "/ip4_gateway", "ip4.network": "/ip4_network", "ip4.dhcp": "/dhcp4_flag", "ip4.dhcp_start": "/dhcp4_start", "ip4.dhcp_end": "/dhcp4_end", "ip6.gateway": "/ip6_gateway", "ip6.network": "/ip6_network", "ip6.dhcp": "/dhcp6_flag"}, "reservation": {"mac": "", "ip": "/ipaddr", "hostname": "/hostname"}, "lease": {"mac": "", "ip": "/ipaddr", "hostname": "/hostname", "expiry": "/expiry", "client_id": "/clientid"}, "rule": {"description": "", "rule": "/rule", "order": "/order"}, "osd": {"id": "", "node": "/node", "device": "/device", "db_device": "/db_device", "fsid": "/fsid", "ofsid": "/fsid/osd", "cfsid": "/fsid/cluster", "lvm": "/lvm", "vg": "/lvm/vg", "lv": "/lvm/lv", "is_split": "/is_split", "stats": "/stats"}, "pool": {"name": "", "pgs": "/pgs", "tier": "/tier", "stats": "/stats"}, "volume": {"name": "", "stats": "/stats"}, "snapshot": {"name": "", "stats": "/stats"}}

16
daemon-common/vm.py
View File

@ -147,6 +147,7 @@ def define_vm(
node_selector,
node_autostart,
migration_method=None,
migration_max_downtime=300,
profile=None,
tags=[],
initial_state="stop",
@ -272,6 +273,10 @@ def define_vm(
(("domain.console.vnc", dom_uuid), ""),
(("domain.meta.autostart", dom_uuid), node_autostart),
(("domain.meta.migrate_method", dom_uuid), str(migration_method).lower()),
(
("domain.meta.migrate_max_downtime", dom_uuid),
int(migration_max_downtime),
),
(("domain.meta.node_limit", dom_uuid), formatted_node_limit),
(("domain.meta.node_selector", dom_uuid), str(node_selector).lower()),
(("domain.meta.tags", dom_uuid), ""),
@ -305,6 +310,7 @@ def modify_vm_metadata(
node_autostart,
provisioner_profile,
migration_method,
migration_max_downtime,
):
dom_uuid = getDomainUUID(zkhandler, domain)
if not dom_uuid:
@ -331,6 +337,14 @@ def modify_vm_metadata(
(("domain.meta.migrate_method", dom_uuid), str(migration_method).lower())
)
if migration_max_downtime is not None:
update_list.append(
(
("domain.meta.migrate_max_downtime", dom_uuid),
int(migration_max_downtime),
)
)
if len(update_list) < 1:
return False, "ERROR: No updates to apply."
@ -563,6 +577,7 @@ def rename_vm(zkhandler, domain, new_domain):
dom_info["node_selector"],
dom_info["node_autostart"],
migration_method=dom_info["migration_method"],
migration_max_downtime=dom_info["migration_max_downtime"],
profile=dom_info["profile"],
tags=dom_info["tags"],
initial_state="stop",
@ -1624,6 +1639,7 @@ def restore_vm(zkhandler, domain, backup_path, datestring, retain_snapshot=False
backup_source_details["vm_detail"]["node_selector"],
backup_source_details["vm_detail"]["node_autostart"],
backup_source_details["vm_detail"]["migration_method"],
backup_source_details["vm_detail"]["migration_max_downtime"],
backup_source_details["vm_detail"]["profile"],
backup_source_details["vm_detail"]["tags"],
"restore",

2
daemon-common/vmbuilder.py
View File

@ -744,6 +744,7 @@ def worker_create_vm(
node_selector = vm_data["system_details"]["node_selector"]
node_autostart = vm_data["system_details"]["node_autostart"]
migration_method = vm_data["system_details"]["migration_method"]
migration_max_downtime = vm_data["system_details"]["migration_max_downtime"]
with open_zk(config) as zkhandler:
retcode, retmsg = pvc_vm.define_vm(
zkhandler,
@ -753,6 +754,7 @@ def worker_create_vm(
node_selector,
node_autostart,
migration_method,
migration_max_downtime,
vm_profile,
initial_state="provision",
)

5
daemon-common/zkhandler.py
View File

@ -572,7 +572,7 @@ class ZKHandler(object):
#
class ZKSchema(object):
# Current version
_version = 12
_version = 13
# Root for doing nested keys
_schema_root = ""
@ -707,6 +707,7 @@ class ZKSchema(object):
"console.vnc": "/vnc",
"meta.autostart": "/node_autostart",
"meta.migrate_method": "/migration_method",
"meta.migrate_max_downtime": "/migration_max_downtime",
"meta.node_selector": "/node_selector",
"meta.node_limit": "/node_limit",
"meta.tags": "/tags",
@ -1026,6 +1027,8 @@ class ZKSchema(object):
default_data = "False"
elif elem == "pool" and ikey == "tier":
default_data = "default"
elif elem == "domain" and ikey == "meta.migrate_max_downtime":
default_data = "300"
else:
default_data = ""
zkhandler.zk_conn.create(

11
gen-api-migrations
View File

@ -2,12 +2,19 @@
# Generate the database migration files
set -o xtrace
VERSION="$( head -1 debian/changelog | awk -F'[()-]' '{ print $2 }' )"
sudo ip addr add 10.0.1.250/32 dev lo
pushd $( git rev-parse --show-toplevel ) &>/dev/null
pushd api-daemon &>/dev/null
export PVC_CONFIG_FILE="../pvc.sample.conf"
./pvcapid-manage_flask.py db migrate -m "PVC version ${VERSION}"
./pvcapid-manage_flask.py db upgrade
export FLASK_APP=./pvcapid-manage_flask.py
flask db migrate -m "PVC version ${VERSION}"
flask db upgrade
popd &>/dev/null
popd &>/dev/null
sudo ip addr del 10.0.1.250/32 dev lo

23
node-daemon/pvcnoded/objects/VMInstance.py
View File

@ -687,6 +687,29 @@ class VMInstance(object):
abort_migrate("Target node changed during preparation")
return
if not force_shutdown:
# Set the maxdowntime value from Zookeeper
try:
max_downtime = self.zkhandler.read(
("domain.meta.migrate_max_downtime", self.domuuid)
)
except Exception as e:
self.logger.out(
f"Error fetching migrate max downtime; using default of 300s: {e}",
state="w",
)
self.max_downtime = 300
self.logger.out(
f"Running migrate-setmaxdowntime with downtime value {max_downtime}",
state="i",
prefix="Domain {}".format(self.domuuid),
)
retcode, stdout, stderr = common.run_os_command(
f"virsh migrate-setmaxdowntime --downtime {max_downtime} {self.domuuid}"
)
if retcode:
abort_migrate("Failed to set maxdowntime value on running VM")
return
# A live migrate is attemped 3 times in succession
ticks = 0
while True:

4
pvc.sample.conf
View File

@ -168,7 +168,7 @@ database:
port: 6379
# Hostname; use `cluster` network floating IP address
hostname: 10.0.1.250
hostname: 127.0.0.1
# Path, usually "/0"
path: "/0"
@ -180,7 +180,7 @@ database:
port: 5432
# Hostname; use `cluster` network floating IP address
hostname: 10.0.1.250
hostname: 127.0.0.1
# Credentials
credentials: