gcloud alpha compute instance-groups managed rolling-action start-update

gcloud alpha compute instance-groups managed rolling-action start-update - updates instances in a managed instance group

gcloud alpha compute instance-groups managed rolling-action start-update NAME --version=[template=TEMPLATE,[name=NAME],…] [--canary-version=[template=TEMPLATE,target-size=FIXED_OR_PERCENT,[name=NAME],…]] [--type=TYPE; default="proactive"] [--force] [--max-surge=MAX_SURGE] [--max-unavailable=MAX_UNAVAILABLE] [--min-ready=MIN_READY] [--minimal-action=MINIMAL_ACTION] [--most-disruptive-allowed-action=MOST_DISRUPTIVE_ALLOWED_ACTION] [--replacement-method=REPLACEMENT_METHOD] [--region=REGION     | --zone=ZONE] [GCLOUD_WIDE_FLAG …]

An instance template version can be either a global or regional resource.

gcloud alpha compute instance-groups managed rolling-action start-update example-managed-instance-group \
--version='template=example-global-instance-template'

Sets the group's instance template version to a global instance template resource 'example-global-instance-template'.

To use a regional instance template, specify the full or partial URL of the template.

Running:

gcloud alpha compute instance-groups managed rolling-action start-update example-managed-instance-group \
--version='template=projects/example-project/regions/us-central1/instanceTemplates/example-regional-instance-template'

Sets the group's instance template version to a regional instance template resource 'example-regional-instance-template'.

NAME

Name of the managed instance group to operate on.

--version=[template=TEMPLATE,[name=NAME],…]

Original instance template resource to be used. Each version has the following format: template=TEMPLATE,[name=NAME]

--canary-version=[template=TEMPLATE,target-size=FIXED_OR_PERCENT,[name=NAME],…]

New instance template resource to be used. Each version has the following format: template=TEMPLATE,target-size=FIXED_OR_PERCENT,[name=NAME]

--type=TYPE; default="proactive"

Desired update type. TYPE must be one of:

opportunistic

Do not proactively replace VMs. Create new VMs and delete old ones on resizes of the group and when you target specific VMs to be updated or recreated.

proactive

Replace instances proactively.

--force

If set, accepts any original or new version configurations without validation.

--max-surge=MAX_SURGE

Maximum additional number of instances that can be created during the update process. This can be a fixed number (e.g. 5) or a percentage of size to the managed instance group (e.g. 10%). Defaults to 0 if the managed instance group has stateful configuration, or to the number of zones in which it operates otherwise.

--max-unavailable=MAX_UNAVAILABLE

Maximum number of instances that can be unavailable during the update process. This can be a fixed number (e.g. 5) or a percentage of size to the managed instance group (e.g. 10%). Defaults to the number of zones in which the managed instance group operates.

--min-ready=MIN_READY

Minimum time for which a newly created instance should be ready to be considered available. For example 10s for 10 seconds. See $ gcloud topic datetimes for information on duration formats.

--minimal-action=MINIMAL_ACTION

Use this flag to minimize disruption as much as possible or to apply a more disruptive action than is strictly necessary. The MIG performs at least this action on each instance while updating. If the update requires a more disruptive action than the one specified here, then the more disruptive action is performed. If you omit this flag, the update uses the minimal-action value from the MIG's update policy, unless it is not set in which case the default is replace.

MINIMAL_ACTION must be one of:

refresh

Apply the new configuration without stopping VMs, if possible. For example, use ``refresh`` to apply changes that only affect metadata or additional disks.

restart

Apply the new configuration without replacing VMs, if possible. For example, stopping VMs and starting them again is sufficient to apply changes to machine type.

replace

Replace old VMs according to the --replacement-method flag.

--most-disruptive-allowed-action=MOST_DISRUPTIVE_ALLOWED_ACTION

Use this flag to prevent an update if it requires more disruption than you can afford. At most, the MIG performs the specified action on each instance while updating. If the update requires a more disruptive action than the one specified here, then the update fails and no changes are made. If you omit this flag, the update uses the most-disruptive-allowed-action value from the MIG's update policy, unless it is not set in which case the default is replace.

MOST_DISRUPTIVE_ALLOWED_ACTION must be one of:

refresh

Apply the new configuration without stopping VMs, if possible. For example, use ``refresh`` to apply changes that only affect metadata or additional disks.

restart

Apply the new configuration without replacing VMs, if possible. For example, stopping VMs and starting them again is sufficient to apply changes to machine type.

replace

Replace old VMs according to the --replacement-method flag.

--replacement-method=REPLACEMENT_METHOD

Type of replacement method. Specifies what action will be taken to update instances. Defaults to ``recreate`` if the managed instance group has stateful configuration, or to ``substitute`` otherwise. REPLACEMENT_METHOD must be one of:

recreate

Recreate instances and preserve the instance names. The instance IDs and creation timestamps might change.

substitute

Delete old instances and create instances with new names.

At most one of these can be specified:

--region=REGION

Region of the managed instance group to operate on. If not specified, you might be prompted to select a region (interactive mode only).

A list of regions can be fetched by running:

gcloud compute regions list

Overrides the default compute/region property value for this command invocation.

--zone=ZONE

Zone of the managed instance group to operate on. If not specified, you might be prompted to select a zone (interactive mode only).

A list of zones can be fetched by running:

gcloud compute zones list

Overrides the default compute/zone property value for this command invocation.

Run $ gcloud help for details.