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Create patch jobs | VM Manager

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You can use Patch to apply operating system patches across a group of virtual machine (VM) instances.

To apply patches to your VMs, complete the following steps:

1. Set up your VM.
2. Run a patch job.

• Review OS Config quotas.
• To generate audit logs for VM Manager events, enable data access audit logs.
• If you haven't already, then set up authentication. Authentication is the process by which your identity is verified for access to Google Cloud services and APIs. To run code or samples from a local development environment, you can authenticate to Compute Engine by selecting one of the following options:

  Select the tab for how you plan to use the samples on this page:

  Console

  When you use the Google Cloud console to access Google Cloud services and APIs, you don't need to set up authentication.

  gcloud

  1. Install the Google Cloud CLI. After installation, initialize the Google Cloud CLI by running the following command:

     gcloud init

     If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

     Note: If you installed the gcloud CLI previously, make sure you have the latest version by running gcloud components update.
  2. Set a default region and zone.
  REST

  To use the REST API samples on this page in a local development environment, you use the credentials you provide to the gcloud CLI.

  Install the Google Cloud CLI. After installation, initialize the Google Cloud CLI by running the following command:

  gcloud init

  If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

  For more information, see Authenticate for using REST in the Google Cloud authentication documentation.

• You can deploy and run patch jobs only for VMs in a single Google Cloud project. You cannot run patch jobs across Google Cloud projects, even if the VMs are in a Shared VPC. However, you can view the patch compliance data across projects.
• By default, VM Manager does not patch any VMs that are part of a managed instance group (MIG). Patching these VMs are reported as failures in the patch job. You can override this default behavior when you create the patch job. The following limitations apply when you patch VMs that are part of a MIG:
  • When a MIG repairs a VM, it recreates the VM based on the instance template. This might revert the VM to an unpatched state.
  • Patching VMs can cause unexpected results in a MIG that has autoscaling enabled. Autoscaler deletes patched VMs when the load goes down and creates new VMs, without any patches, using MIG's instance template when the load increases. For example, if the average CPU utilization is less than the target utilization you specified for autoscaling, MIG can remove some of the patched VMs while scaling in.

For the full list of operating systems and versions that support Patch, see Operating system details.

To use the Patch feature, complete the following steps:

1. For all VMs, set up VM Manager.
2. For Windows VMs, Google recommends disabling automatic updates on the VMs. This reduces conflicts between the Windows automatic updates and the Patch service.

Owners of a Google Cloud project have full access to run and manage patch jobs. For all other users, you need to grant permissions. You can grant one of the following granular roles:

• roles/osconfig.patchJobExecutor: Contains permissions to run, cancel, get, and list patch jobs. It also contains permissions to view instance details for a patch job.
• roles/osconfig.patchJobViewer: Contains permissions for read-only access to get and list patch jobs. It also contains permissions to view instance details for a patch job.

For example, to grant a user access to run patch jobs, use the following command:

gcloud projects add-iam-policy-binding project-id \
    --member user:user-id@gmail.com \
    --role roles/osconfig.patchJobExecutor

Replace the following:

• project-id: The project ID.
• user-id: The user's Google Workspace username.

You can run a patch job by using either the Google Cloud console, Google Cloud CLI, or REST.

When you run a patch job, the patching of the VMs starts simultaneously on all instances specified by the instance filter.

After you have started a patch job, you can monitor your patches using the Patch dashboard. It takes approximately 30 minutes after a patch job starts before the data is populated on the dashboard.

1. In the Google Cloud console, go to the Compute Engine > VM Manager > Patch page.

   Go to the Patch page

2. Click New patch deployment.

3. In the Target VMs section, select the zone that contains the VMs that you want to patch. You can also choose to select all zones.

   After you select the zones, you can then further filter the VMs within that zone.

   Note: In the Google Cloud console, you can only filter by name prefix or label. If you need to apply other types of instance filters use either the Google Cloud CLI, or REST.

   For example, to patch specific VMs in the zones you selected, enter the name and label filters similar to the following:

   • Name prefix: test-
   • Labels: env=dev and app=web

4. In the Patch configuration section, configure the patch.

   1. Specify a Name for your patch.
   2. Select the required updates for your operating system. For more information, see patch configuration.

5. In the Scheduling section, complete the following:

   • Select a schedule. To run the patch job immediately, select Start now.
   • Optional: Set a duration or maintenance window.

6. In the Rollout options section, configure the patch rollout options:

   • Select whether to patch one zone at a time or to patch zones concurrently.
   • Set a disruption budget. A disruption budget is the number or percentage of VMs in a zone that you want to be disrupted at one time by the patching process.

7. Optional: In the Advanced options section, you can complete the following tasks:

   • Select a reboot option.
   • Upload pre-patch and post-patch scripts. For more information about pre-patch and post-patch scripts, see Specifying pre-patch and post-patch scripts.

8. Click Deploy.

Use the os-config patch-jobs execute command to run a patch job. Replace instance-filter with the instance filter that you want. For more information about instance filters, see instance filters.

gcloud compute os-config patch-jobs execute instance-filter

For more information about what updates get applied, see what is included in an OS patch job. To customize your updates, use the optional flags.

Examples

Example 1 To run a patch job with the following configurations:

• Instance name: instance-1
• Zone: us-east1-b

• Description: patch for instance-1

  You would run the following command:

gcloud compute os-config patch-jobs execute \
    --instance-filter-names="zones/us-east1-b/instances/instance-1" \
    --description "patch for instance-1"

Example 2 Suppose you want to run a patch job asynchronously with the following configurations:

• Patch must be run on all instances in the project.
• Patch job must timeout and stop after 1 hour and 30 minutes.
• Machines must reboot based on the system settings after installing the updates.
• On VMs running Apt, patching is done using apt dist-upgrade.
• On VMs running Windows, only apply patches for the KB4339284 update.
• On VMs running Yum, patching is done using the yum update-minimal --security utility.

You would run the following command:

gcloud compute os-config patch-jobs execute \
    --instance-filter-all \
    --duration="1h30m" --reboot-config="DEFAULT" \
    --apt-dist --windows-exclusive-patches=4339284 \
    --yum-minimal --yum-security \
    --async

In the API, create a POST request to run a new patch job. You must explicitly define all of the required configuration fields as described in the patchJobs.execute API documentation.

For more information about what updates get applied, see what is included in an OS patch job. To customize your updates, use the PatchConfig parameters.

For example, a patch job with only the required fields looks like the following.

POST https://osconfig.googleapis.com/v1/projects/project-id/patchJobs:execute

{
  "instanceFilter": instance-filter
}

Replace the following:

• project-id: Your project ID.
• instance-filter: The filter parameters that you want. For more information about instance filters, see instance filters.

Examples

Example 1 Suppose you want to run a patch job on an instance named instance1 located in us-east1-b. In this example, we add a description and specify that the job runs for 1 hour 30 minutes. Replace project-id with your project ID.

POST https://osconfig.googleapis.com/v1/projects/project-id/patchJobs:execute

{
  "description":"patch instance1 in us-east1-b",
  "duration":"5400s",
  "instanceFilter":{
    "instances":[
      "zones/us-east1-b/instances/instance1"
    ]
  }
}

Example 2 The following patch job selects VMs that have the following configurations:

• Have labels env=dev and app=web.
• Are in either asia-east1-b or asia-east1-c.
• Have the prefix test-.

In the following command, replace project-id with your project ID.

POST https://osconfig.googleapis.com/v1/projects/project-id/patchJobs:execute

{
  "instanceFilter":{
    "groupLabels":[
      {
        "labels":{
          "env":"dev",
          "app":"web"
        }
      }
    ],
    "instanceNamePrefixes":[
      "test-"
    ],
    "zones":[
      "asia-east1-b",
      "asia-east1-c"
    ]
  }
}

Example 3

Suppose you want to run a patch job with the following configurations:

• Patch must be run on all instances in the project.
• Patch job must timeout and stop after 1 hour and 30 minutes. The API requires that time is expressed in seconds, so set this as 5400s.
• Machines must reboot based on the system settings after installing the updates.
• On VMs running Apt, patching is done using apt dist-upgrade.
• On VMs running Windows, only apply patches for the KB4339284 update.
• On VMs running Yum, patching is done using the yum update-minimal --security utility.

You would create the following request:

In the following command, replace project-id with your project ID.

POST https://osconfig.googleapis.com/v1/projects/project-id/patchJobs:execute

{
 "duration":"5400s",
 "instanceFilter":{
   "all":true
 },
 "patchConfig":{
   "rebootConfig":"DEFAULT",
   "apt":{
     "type":"DIST"
   },
   "yum":{
     "security":true,
     "minimal":true
   },
   "windowsUpdate":{
     "exclusivePatches":"4339284"
   }
 }
}

You can specify the instances to be included in a patch job by using filters. The following filters are supported for patch jobs:

• Filter by name: Limit patch job to instances with specific names. Instance names must be specified by using the full URI. Supported URI formats include the following:

  • zones/zone/instances/instance-name

  • projects/project-id/zones/zone/instances/instance-name

  • https://www.googleapis.com/compute/v1/projects/project-id/zones/zone/instances/instance-name

• Filter by name prefix: Limit patch job to instances with a specific prefix in their name.

• Filter by zone: Limit patch job to instances in a specific zone.

• Filter by label: Limit patch job to instances with specific labels.

You can also run patch jobs on all instances in a Google Cloud project by setting the all field in instanceFilter to true. For more information, see example instance filters.

--instance-filter-all

{
  "instanceFilter":{
    "all":"true"
  }
}

--instance-filter-names="zones/us-east1-b/instances/instance1"

{
  "instanceFilter":{
    "instances":[
      "zones/us-east1-b/instances/instance1"
    ]
  }
}

--instance-filter-name-prefixes="app-"

{
  "instanceFilter":{
    "instanceNamePrefixes":[
      "app-"
    ]
  }
}

--instance-filter-zones="us-east1-b","us-east1-c"

{
  "instanceFilter":{
    "zones":[
      "us-east1-b",
      "us-east1-c"
    ]
  }
}

--instance-filter-group-labels="env=dev,app=web"
--instance-filter-group-labels="env=dev,app=worker"

{
  "instanceFilter":{
    "groupLabels":[
      {
        "labels":{
          "env":"dev",
          "app":"web"
        }
      },
      {
        "labels":{
          "env":"dev",
          "app":"worker"
        }
      }
    ]
  }
}

Combining instance filters

Instance filters can also be combined. For example, to run a patch job for instances that have the prefix test-, that are located in the zone us-east1-c, and that have the labels env=dev and app=web, run the following command:

gcloud compute os-config patch-jobs execute \
    --instance-filter-name-prefixes="test-" \
    --instance-filter-zones="us-east1-c" \
    --instance-filter-group-labels="env=prod,app=web"

When running a patch job, you can specify parameters to control the patches that are applied on the VM. The patch configuration parameters are platform dependent and are often passed through to the underlying system update tools. The actual patches are sourced from the package repositories (Linux) or the Windows Update server (Windows) that is configured on the VM.

You can specify the following patch configurations for your VMs:

• For Windows, you specify the classification of patches to apply (eg. Security and Critical) or target specific KBs to exclude. For more information about patch classification, see the Microsoft support documentation.

• For RHEL, Rocky Linux, and CentOS, the underlying system is yum.

  • For patches that target RHEL and Rocky Linux VMs, you can specify security and minimal packages.
  • For CentOS VMs, there is no security metadata in the CentOS yum repository. Therefore, you need not specify the security option when updating security packages. If you don't specify any package, the patch job updates all packages, including those with security updates.
  • You can also exclude specific packages. For more information, see the yum man pages.

• For Debian & Ubuntu, the underlying system is apt. For patches that target these VMs, you can specify dist-upgrade or a standard upgrade. You can also exclude specific packages. For more information, see either the Debian man pages or Ubuntu man pages.

• For SuSE, the underlying system is zypper, specifically using zypper patches. For patches that target these VMs, you can specify options such as:

  • with update: update all packages not covered by patches
  • with optional: optional patches are treated as needed
  • The categories or severities of patches to apply

  You can also exclude specific patches.

Optionally, for all the supported operating systems, you can select to install approved patches only by specifying these updates. This lets you enter a list of approved packages or patches. When you select these approved patches, only the approved packages or patches are installed. All other patch configuration parameters are skipped during the update.

1. Follow the steps outlined in the console tab for creating either a patch job or a patch deployment.
2. In the Patch configuration section, select the parameters for your patch job.
3. Make any additional configurations that are needed for your patch job or deployment.
4. Click Deploy.

For example, to run a patch job on all instances in the zone northamerica-northeast1-a with specific patch configurations for different operating systems, run the gcloud compute os-config patch-jobs execute command:

gcloud compute os-config patch-jobs execute \
    --instance-filter-zones="northamerica-northeast1-a" \
    --apt-dist \
    --yum-security \
    --yum-minimal \
    --zypper-categories=security \
    --windows-classifications=critical,security \
    --reboot-config=default

To learn more about the supported options, run the following command:

gcloud compute os-config patch-jobs execute --help

For example, to run a patch job on all instances in the zone northamerica-northeast1-a with specific patch configurations for different operating systems, run the following command:

POST https://osconfig.googleapis.com/v1/projects/project-id/patchJobs:execute
{
    "instanceFilter":{
        "zones":[
            "northamerica-northeast1-a"
        ]
    },
    "patchConfig":{
        "apt": {
            "type": "dist-upgrade"
        },
        "yum": {
            "security": true,
            "minimal": true
        },
        "zypper": {
            "categories": ["security"]
        },
        "windowsUpdate": {
            "classifications": ["CRITICAL", "SECURITY"]
        },
        "rebootConfig": "DEFAULT"
    }
}

To learn more about the supported parameters, review the PatchConfig API documentation.

A maintenance window is the total length of time that you allow a patch job to run. Patch jobs will timeout if they don't complete within the specified maintenance window.

For example, if you set a maintenance window of 60 minutes, then no new patch jobs will be initiated 60 minutes after the start time. Some processes such as downloading a file or rebooting might occur outside of this maintenance window, however no new patch jobs will be initiated.

When running a patch job, you can specify the reboot options for the patch. The following options are available:

• Default: The agent decides if a reboot is necessary by checking well known signals on each OS. Multiple reboots may occur during the patching and may occur before any patches are installed.
• Always: The machine reboots after the update has completed.
• Never: The machine does not reboot after the update has completed. In some cases, this might mean that not all patches are fully applied.

When running a patch job, you can specify scripts to be run as part of the patching process. These scripts are useful for performing tasks such as shutting down an application and performing health checks.

• Pre-patch scripts run before patching starts. If a system reboot is required before patching starts, the pre-patch script runs before the reboot.
• Post-patch scripts run after patching completes. If a system reboot is required as part of the patching, the post-patch script runs after the reboot.

A patch job accepts one pre-patch and one post-patch script for Linux, and one pre-patch and one post-patch script for Windows. Linux and Windows scripts must be provided using the appropriate flags, parameters, or sections when specified from the Google Cloud CLI, REST, or the Google Cloud console respectively. Linux scripts run on Linux VMs only and Windows scripts run on Windows VMs only.

These script files can either be stored on the VM or in a versioned Cloud Storage bucket.

If you want to use a Cloud Storage bucket to store your scripts, create a Cloud Storage bucket and upload your scripts to the bucket. When using a Cloud Storage bucket, consider the following:

• If your Cloud Storage object is not publicly readable, ensure that the service account attached to the instance has the necessary IAM permissions to read the Cloud Storage objects. To ensure that you have the correct permissions, check the permission settings on the Cloud Storage object.
• When you select a script from Cloud Storage using the Google Cloud console, the latest version of the specified Cloud Storage object is used by default.

• If your organization enforces the Resource Location Restriction constraint, then you must store your scripts in Cloud Storage buckets in regions and zones that your org policy permits.

1. Follow the steps outlined in the console tab for creating either a patch job or a patch deployment.
2. In the Advanced options section, for both the pre-patch and post-patch sections, click Browse. A Cloud Storage object page displays.
3. From the Cloud Storage object page, select the Cloud Storage bucket that contains the script, then select the Cloud Storage object or file.
4. Make any additional configurations that are needed for your patch job or deployment.
5. Click Deploy.

For example, to run a patch job on all instances in the zone northamerica-northeast1-a with both pre and post patch script for Linux and Windows instances, run the following command:

gcloud compute os-config patch-jobs execute \
    --instance-filter-zones="northamerica-northeast1-a" \
    --async \
    --pre-patch-linux-executable="/tmp/pre_patch_script.sh" \
    --post-patch-linux-executable="gs://my-patch-scripts/linux/post_patch_script#1523477886880" \
    --pre-patch-windows-executable="C:\\Users\\user\\pre-patch-script.cmd" \
    --post-patch-windows-executable="gs://my-patch-scripts/windows/post_patch_script.ps1#135920493447"

To learn more about acceptable file formats, run the following command:

gcloud compute os-config patch-jobs execute --help

For example, to run a patch job on all instances in the zone northamerica-northeast1-a with both pre and post patch script for Linux and Windows instances, run the following command:

POST https://osconfig.googleapis.com/v1/projects/project-id/patchJobs:execute

{
  "instanceFilter":{
    "zones":[
      "northamerica-northeast1-a"
    ]
  },
  "patchConfig":{
    "preStep":{
      "linuxExecStepConfig":{
        "localPath":"/tmp/pre_patch_script.sh"
      },
      "windowsExecStepConfig":{
        "interpreter":"SHELL",
        "localPath":"C:\\Users\\user\\pre-patch-script.cmd"
      }
    },
    "postStep":{
      "linuxExecStepConfig":{
        "gcsObject":{
          "bucket":"my-patch-scripts",
          "generationNumber":"1523477886880",
          "object":"linux/post_patch_script"
        }
      },
      "windowsExecStepConfig":{
        "gcsObject":{
          "bucket":"my-patch-scripts",
          "generationNumber":"135920493447",
          "object":"windows/post_patch_script.ps1"
        },
        "interpreter":"POWERSHELL"
      }
    }
  }
}

To learn more about acceptable file formats, review the ExecStepConfig section of the PatchConfig API documentation.

You can choose to either patch VMs one zone at a time (zone by zone), or to patch all zones at once (concurrent zones).

Along with making a selection for the zone roll out, you can also specify a zone disruption budget for your VMs.

A disruption budget is the maximum number (or percentage) of VMs per zone to disrupt at any given moment.

During patching, a VM is considered disrupted from the time the OS Config agent is notified to begin until patching has completed. This disruption time includes the time to complete reboot and any post-patch steps.

A VM is also counted as a part of the disruption budget if it meets any of the following conditions:

• Patching operation fails when applying the patches
• Patching operation fails when running pre or post patch steps
• Patching operation fails to respond with a success notification before timing out

For zone-by-zone rollouts, if the disruption budget in a zone is exceeded, the patch job stops. This happens because continuing to the next zone requires completion of the patch process in the previous zone.

For example, if the disruption budget has a value of 10, and 8 VMs fail to patch in the current zone, the patch job continues to patch 2 VMs at a time until the zone is completed. When that zone is completed successfully, patching begins with 10 VMs at a time in the next zone. If 10 VMs in the next zone fail to patch, the patch job stops.

1. Follow the steps outlined in the console tab for creating either a patch job or a patch deployment.
2. In the Rollout options section, configure the rollout options:
   • Select whether to patch one zone at a time or to patch all zones concurrently.
   • Set the disruption budget. A disruption budget is the number or percentage of VMs in a zone that you want to be disrupted at one time by the patching process.
3. Make any additional configurations that are needed for your patch job or deployment.
4. Click Deploy.

Example 1

This example shows the os-config patch-jobs execute command for running a patch job with the following specifications:

• Patching all VMs in your project
• Patching VMs zone by zone
• Ensuring that no more than 10 VMs in the same zone are disrupted at a given time

gcloud compute os-config patch-jobs execute \
   --instance-filter-all \
   --rollout-mode=zone-by-zone \
   --rollout-disruption-budget=10

Example 2

This example shows the os-config patch-jobs execute command for running a patch job with the following specifications:

• Patching all VMs in your project
• Patching zones concurrently
• Ensuring that no more than 50 percent of the VMs in the same zone are disrupted at a given time

gcloud compute os-config patch-jobs execute \
   --instance-filter-all \
   --rollout-mode=concurrent-zones \
   --rollout-disruption-budget-percent=50

This example shows the patchJobs.execute method for running a patch job with the following specifications:

• Patching all VMs in the zones us-central1-a, us-central1-c, and us-central1-f
• Patching zones concurrently
• Ensuring that no more than 25 percent of the instances in the same zone are disrupted at a given time

POST https://osconfig.googleapis.com/v1/projects/project-id/patchJobs:execute

{
  "instanceFilter":{
    "zones":[
      "us-central1-a",
      "us-central1-c",
      "us-central1-f"
    ]
  },
  "rollout": {
    "disruptionBudget": {
      "percent": 25
    },
    "mode": "CONCURRENT_ZONES"
  }
}

To learn more about patch rollout, review the PatchRollout API documentation.

When you run a patch job on Windows VMs, by default, Patch applies only the patches for the Windows operating system.

You can apply updates for Microsoft software such as Microsoft SQL Server, SharePoint Server, or .NET framework running on your Windows VMs when you run a patch job. By default, patching these applications is disabled to avoid disruption of service and to separate planned updates for these software. To enable patching Microsoft software automatically, you can either use the Windows UI or the PowerShell.

1. In the Windows Start menu, select Settings > Update & Security > Windows Update.
2. In the Advanced options section, toggle on Receive updates for other Microsoft products when you update Windows.

 $service_manager = New-Object -ComObject 'Microsoft.Update.ServiceManager'
 $service_manager.AddService2("7971f918-a847-4430-9279-4a52d1efe18d",7,"")

If your patch fails, you can use the following steps to help find and resolve the issues.

1. Review the instance details for the affected patch job. This helps you to identify which instances failed or what state they are stuck in. The instance details list also contains a brief error message for each instance.

   If a patch fails with a status of NO_AGENT_DETECTED or TIMED_OUT, this usually means that the service sent a request to the agent to begin patching but never heard back from the agent. Review the following possible causes and fixes:

   • The instance is not running. To fix this, start the VM instance.
   • Verify the setup by using the verification checklist.
   • The network settings on the VPC network or the instance didn't allow the OS Config agent to communicate with the OS Config API. To fix this, check the network settings.

2. If the instance details don't provide enough information, review the Cloud Logging logs or serial port console. The OS Config agent writes its log entries to both locations. In Cloud Logging, you can filter using the patch job ID to see all log entries related to that patch job. You can also enable debug logging by setting the osconfig-log-level=debug metadata value at the VM or Google Cloud project level.

• Learn more about Patch.
• Manage your patch jobs.
• Schedule patch jobs.

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-08-07 UTC.

[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["Patch can be used to apply operating system updates to virtual machines (VMs) in a single Google Cloud project, but not across multiple projects, even in Shared VPCs."],["To use Patch, you need to set up VM Manager and optionally disable automatic updates on Windows VMs to avoid conflicts, and project owners have full access to patch jobs, while other users need specific granular roles assigned."],["Patch jobs can be run using the Google Cloud console, CLI, or REST API, and they allow filtering of target instances by name, name prefix, zone, or label, and have a maximum of 500 VMs in a single job."],["Patch configurations can be customized based on the operating system, including options for Windows, RHEL, Rocky Linux, CentOS, Debian, Ubuntu, and SuSE, with features like specifying patch classifications, security updates, or approved patches only."],["Patch jobs support maintenance windows, reboot options, pre-patch and post-patch scripts, and rollout options, including zone-by-zone or concurrent patching, and also allow for specifying a disruption budget to control the number of VMs affected simultaneously."]]],[]]

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